用户登录注册界面开发及用户信息管理案例详解
刚开始接触Android编程,这算是我写的第一个简单工程,主要功能有:用户登录、注册、注销、修改密码、记住密码共5个基本操作,其内容涉及到以下几点:
1:Button,TextView,TextEdit,ImageView,RatioButton等基本控件的使用;
2:多个Activities之间的切换;
3:使用Android本地数据库来管理用户信息。
实现上述功能的主要参考资料:CSDN博客之星郭霖大牛写的《第一行代码—Android》,个人比较喜欢看纸质的资料,所以买了这本书,大牛的博客主页链接http://my.csdn.net/sinyu890807。其次是参考了网上的一个用户登录注册的程序,在此基础上按照自己的需求慢慢添加完善一些功能,并且将原来的单个avtivity换用多个activity实现,UI设计也更加漂亮美观。
先上几个图【我在android6.0.1的真机上调试的】:
下面是用户登录和用户注册界面。
下面是用户密码修改和个人中心界面。
一、工程代码
1:几个界面布局文件.xml
- <?xml version=“1.0” encoding=“utf-8”?>
- <RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android”
- xmlns:tools=”http://schemas.android.com/tools”
- android:layout_width=”match_parent”
- android:layout_height=”match_parent”
- android:paddingBottom=”@dimen/activity_vertical_margin”
- android:paddingLeft=”@dimen/activity_horizontal_margin”
- android:paddingRight=”@dimen/activity_horizontal_margin”
- android:paddingTop=”@dimen/activity_vertical_margin”
- tools:context=”com.example.foolishfan.user_v10.Login”>
- <RelativeLayout
- android:id=”@+id/login_view”
- android:layout_width=”400dp”
- android:layout_height=”800dp”
- android:layout_centerInParent=”true”
- >
- <Button
- android:layout_width=”fill_parent”
- android:layout_height=”wrap_content”
- android:text=”注册”
- android:id=”@+id/login_btn_register”
- android:onClick=”resetpwd”
- android:textColor=”#ffffff”
- android:background=”#e52525”
- android:textSize=”20dp”
- android:layout_below=”@+id/login_btn_login”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true”
- android:layout_marginTop=”10dp” />
- <Button
- android:layout_width=”fill_parent”
- android:layout_height=”wrap_content”
- android:text=”登录”
- android:id=”@+id/login_btn_login”
- android:onClick=”finish_login”
- android:background=”#545bcb”
- android:textSize=”20dp”
- android:textColor=”#ffffff”
- android:layout_below=”@+id/login_edit_pwd”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true”
- android:layout_marginTop=”52dp” />
- <ImageView
- android:layout_width=”300dp”
- android:layout_height=”150dp”
- android:id=”@+id/logo”
- android:layout_alignParentRight=”true”
- android:layout_alignParentEnd=”true”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true”
- android:layout_alignParentTop=”true”
- android:layout_alignWithParentIfMissing=”false”
- android:background=”#ffffff” />
- <EditText
- android:layout_width=”400dp”
- android:layout_height=”60dp”
- android:inputType=”textPassword”
- android:ems=”10”
- android:id=”@+id/login_edit_pwd”
- android:drawableLeft=”@android:drawable/ic_lock_idle_lock”
- android:hint=”请输入您的密码”
- android:layout_below=”@+id/login_edit_account”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true” />
- <EditText
- android:layout_width=”400dp”
- android:layout_height=”60dp”
- android:inputType=”textPersonName”
- android:id=”@+id/login_edit_account”
- android:drawableLeft=”@android:drawable/ic_menu_myplaces”
- android:hint=”请输入您的用户名”
- android:layout_below=”@+id/logo”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true”
- android:layout_marginTop=”20dp” />
- <Button
- android:layout_width=”fill_parent”
- android:layout_height=”wrap_content”
- android:text=”注销”
- android:id=”@+id/login_btn_cancle”
- android:textSize=”20dp”
- android:layout_below=”@+id/login_btn_register”
- android:layout_marginTop=”10dp”
- android:layout_alignParentRight=”true”
- android:layout_alignParentEnd=”true”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true”
- android:textColor=”#ffffff”
- android:background=”#3a1313” />
- <CheckBox
- android:layout_width=”100dp”
- android:layout_height=”20dp”
- android:text=”记住密码”
- android:id=”@+id/Login_Remember”
- android:layout_below=”@+id/login_edit_pwd”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true”
- android:checked=”false”
- android:textSize=”15dp” />
- <TextView
- android:layout_width=”60dp”
- android:layout_height=”20dp”
- android:text=”修改密码”
- android:id=”@+id/login_text_change_pwd”
- android:layout_below=”@+id/login_edit_pwd”
- android:layout_alignParentRight=”true”
- android:layout_alignParentEnd=”true”
- android:textSize=”15dp” />
- </RelativeLayout>
- <RelativeLayout
- android:id=”@+id/login_success_view”
- android:layout_width=”fill_parent”
- android:layout_height=”wrap_content”
- android:layout_centerInParent=”true”
- android:layout_marginLeft=”15.0px”
- android:layout_marginRight=”15.0px”
- android:layout_marginTop=”62.0px”
- android:background=”#ff3f3f3f”
- android:paddingBottom=”10.0px”
- android:paddingTop=”21.0px”
- android:visibility=”gone” >
- <TextView
- android:id=”@+id/login_success_show”
- android:layout_width=”wrap_content”
- android:layout_height=”wrap_content”
- android:layout_centerInParent=”true”
- android:textColor=”#ff3f3f3f”
- android:textSize=”20.0dip” />
- </RelativeLayout>
- </RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin"tools:context="com.example.foolishfan.user_v10.Login"><RelativeLayoutandroid:id="@+id/login_view"android:layout_width="400dp"android:layout_height="800dp"android:layout_centerInParent="true"><Buttonandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="注册"android:id="@+id/login_btn_register"android:onClick="resetpwd"android:textColor="#ffffff"android:background="#e52525"android:textSize="20dp"android:layout_below="@+id/login_btn_login"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:layout_marginTop="10dp" /><Buttonandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="登录"android:id="@+id/login_btn_login"android:onClick="finish_login"android:background="#545bcb"android:textSize="20dp"android:textColor="#ffffff"android:layout_below="@+id/login_edit_pwd"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:layout_marginTop="52dp" /><ImageViewandroid:layout_width="300dp"android:layout_height="150dp"android:id="@+id/logo"android:layout_alignParentRight="true"android:layout_alignParentEnd="true"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:layout_alignParentTop="true"android:layout_alignWithParentIfMissing="false"android:background="#ffffff" /><EditTextandroid:layout_width="400dp"android:layout_height="60dp"android:inputType="textPassword"android:ems="10"android:id="@+id/login_edit_pwd"android:drawableLeft="@android:drawable/ic_lock_idle_lock"android:hint="请输入您的密码"android:layout_below="@+id/login_edit_account"android:layout_alignParentLeft="true"android:layout_alignParentStart="true" /><EditTextandroid:layout_width="400dp"android:layout_height="60dp"android:inputType="textPersonName"android:id="@+id/login_edit_account"android:drawableLeft="@android:drawable/ic_menu_myplaces"android:hint="请输入您的用户名"android:layout_below="@+id/logo"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:layout_marginTop="20dp" /><Buttonandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="注销"android:id="@+id/login_btn_cancle"android:textSize="20dp"android:layout_below="@+id/login_btn_register"android:layout_marginTop="10dp"android:layout_alignParentRight="true"android:layout_alignParentEnd="true"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:textColor="#ffffff"android:background="#3a1313" /><CheckBoxandroid:layout_width="100dp"android:layout_height="20dp"android:text="记住密码"android:id="@+id/Login_Remember"android:layout_below="@+id/login_edit_pwd"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:checked="false"android:textSize="15dp" /><TextViewandroid:layout_width="60dp"android:layout_height="20dp"android:text="修改密码"android:id="@+id/login_text_change_pwd"android:layout_below="@+id/login_edit_pwd"android:layout_alignParentRight="true"android:layout_alignParentEnd="true"android:textSize="15dp" /></RelativeLayout><RelativeLayoutandroid:id="@+id/login_success_view"android:layout_width="fill_parent"android:layout_height="wrap_content"android:layout_centerInParent="true"android:layout_marginLeft="15.0px"android:layout_marginRight="15.0px"android:layout_marginTop="62.0px"android:background="#ff3f3f3f"android:paddingBottom="10.0px"android:paddingTop="21.0px"android:visibility="gone" ><TextViewandroid:id="@+id/login_success_show"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_centerInParent="true"android:textColor="#ff3f3f3f"android:textSize="20.0dip" /></RelativeLayout></RelativeLayout>
register.xml【注册界面】 - <?xml version=“1.0” encoding=“utf-8”?>
- <RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android”
- android:layout_width=”match_parent”
- android:layout_height=”match_parent”
- android:paddingBottom=”@dimen/activity_vertical_margin”
- android:paddingLeft=”@dimen/activity_horizontal_margin”
- android:paddingRight=”@dimen/activity_horizontal_margin”
- android:paddingTop=”@dimen/activity_vertical_margin”
- android:weightSum=”1”>
- <EditText
- android:drawableLeft=”@android:drawable/ic_menu_myplaces”
- android:layout_width=”wrap_content”
- android:layout_height=”60dp”
- android:inputType=”textPersonName”
- android:ems=”10”
- android:id=”@+id/resetpwd_edit_name”
- android:layout_alignParentTop=”true”
- android:hint=”请输入您的用户名”
- android:layout_alignLeft=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignStart=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignRight=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignEnd=”@+id/resetpwd_edit_pwd_new” />
- <!–
- <EditText android:id=”@+id/edt_operator_name” style=“@style/syncEditText”
- android:hint=”@string/hint_operator_name” />
- <ImageView android:id=”@+id/syncOperatorImg” style=“@style/syncImageView”
- android:layout_alignLeft=”@+id/edt_operator_name”
- android:layout_alignTop=”@+id/edt_operator_name”
- android:layout_alignBottom=”@+id/edt_operator_name” android:src=“@drawable/sync_operator” />
- –>
- <EditText
- android:drawableLeft=”@android:drawable/ic_lock_idle_lock”
- android:layout_width=”fill_parent”
- android:layout_height=”60dp”
- android:inputType=”textPassword”
- android:ems=”10”
- android:id=”@+id/resetpwd_edit_pwd_old”
- android:hint=”请输入您的密码”
- android:layout_below=”@+id/resetpwd_edit_name”
- android:layout_alignRight=”@+id/resetpwd_edit_name”
- android:layout_alignEnd=”@+id/resetpwd_edit_name”
- android:layout_alignLeft=”@+id/resetpwd_edit_name”
- android:layout_alignStart=”@+id/resetpwd_edit_name” />
- <Button
- android:layout_width=”fill_parent”
- android:layout_height=”wrap_content”
- android:text=”取消”
- android:id=”@+id/register_btn_cancel”
- android:textSize=”20dp”
- android:background=”#f71818”
- android:layout_below=”@+id/register_btn_sure”
- android:layout_alignLeft=”@+id/register_btn_sure”
- android:layout_alignStart=”@+id/register_btn_sure”
- android:layout_marginTop=”10dp” />
- <EditText
- android:drawableLeft=”@android:drawable/ic_lock_idle_lock”
- android:layout_width=”fill_parent”
- android:layout_height=”60dp”
- android:inputType=”textPassword”
- android:ems=”10”
- android:id=”@+id/resetpwd_edit_pwd_new”
- android:layout_below=”@+id/resetpwd_edit_pwd_old”
- android:layout_centerHorizontal=”true”
- android:hint=”请确认您的密码” />
- <Button
- android:layout_width=”fill_parent”
- android:layout_height=”wrap_content”
- android:text=”确定”
- android:id=”@+id/register_btn_sure”
- android:textSize=”20dp”
- android:background=”#1cf718”
- android:layout_below=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignLeft=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignStart=”@+id/resetpwd_edit_pwd_new”
- android:layout_marginTop=”20dp” />
- </RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin"android:weightSum="1"><EditTextandroid:drawableLeft="@android:drawable/ic_menu_myplaces"android:layout_width="wrap_content"android:layout_height="60dp"android:inputType="textPersonName"android:ems="10"android:id="@+id/resetpwd_edit_name"android:layout_alignParentTop="true"android:hint="请输入您的用户名"android:layout_alignLeft="@+id/resetpwd_edit_pwd_new"android:layout_alignStart="@+id/resetpwd_edit_pwd_new"android:layout_alignRight="@+id/resetpwd_edit_pwd_new"android:layout_alignEnd="@+id/resetpwd_edit_pwd_new" /><!--<EditText android:id="@+id/edt_operator_name" style="@style/syncEditText"android:hint="@string/hint_operator_name" /><ImageView android:id="@+id/syncOperatorImg" style="@style/syncImageView"android:layout_alignLeft="@+id/edt_operator_name"android:layout_alignTop="@+id/edt_operator_name"android:layout_alignBottom="@+id/edt_operator_name" android:src="@drawable/sync_operator" />
--><EditTextandroid:drawableLeft="@android:drawable/ic_lock_idle_lock"android:layout_width="fill_parent"android:layout_height="60dp"android:inputType="textPassword"android:ems="10"android:id="@+id/resetpwd_edit_pwd_old"android:hint="请输入您的密码"android:layout_below="@+id/resetpwd_edit_name"android:layout_alignRight="@+id/resetpwd_edit_name"android:layout_alignEnd="@+id/resetpwd_edit_name"android:layout_alignLeft="@+id/resetpwd_edit_name"android:layout_alignStart="@+id/resetpwd_edit_name" /><Buttonandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="取消"android:id="@+id/register_btn_cancel"android:textSize="20dp"android:background="#f71818"android:layout_below="@+id/register_btn_sure"android:layout_alignLeft="@+id/register_btn_sure"android:layout_alignStart="@+id/register_btn_sure"android:layout_marginTop="10dp" /><EditTextandroid:drawableLeft="@android:drawable/ic_lock_idle_lock"android:layout_width="fill_parent"android:layout_height="60dp"android:inputType="textPassword"android:ems="10"android:id="@+id/resetpwd_edit_pwd_new"android:layout_below="@+id/resetpwd_edit_pwd_old"android:layout_centerHorizontal="true"android:hint="请确认您的密码" /><Buttonandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="确定"android:id="@+id/register_btn_sure"android:textSize="20dp"android:background="#1cf718"android:layout_below="@+id/resetpwd_edit_pwd_new"android:layout_alignLeft="@+id/resetpwd_edit_pwd_new"android:layout_alignStart="@+id/resetpwd_edit_pwd_new"android:layout_marginTop="20dp" /></RelativeLayout>
resetpwd.xml【修改密码界面】 - <?xml version=“1.0” encoding=“utf-8”?>
- <RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android”
- android:layout_width=”match_parent”
- android:layout_height=”match_parent”
- android:paddingBottom=”@dimen/activity_vertical_margin”
- android:paddingLeft=”@dimen/activity_horizontal_margin”
- android:paddingRight=”@dimen/activity_horizontal_margin”
- android:paddingTop=”@dimen/activity_vertical_margin”
- android:weightSum=”1”>
- <EditText
- android:drawableLeft=”@android:drawable/ic_menu_myplaces”
- android:layout_width=”wrap_content”
- android:layout_height=”60dp”
- android:inputType=”textPersonName”
- android:ems=”10”
- android:id=”@+id/resetpwd_edit_name”
- android:layout_alignParentTop=”true”
- android:hint=”请输入您的用户名”
- android:layout_alignLeft=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignStart=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignRight=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignEnd=”@+id/resetpwd_edit_pwd_new” />
- <!–
- <EditText android:id=”@+id/edt_operator_name” style=“@style/syncEditText”
- android:hint=”@string/hint_operator_name” />
- <ImageView android:id=”@+id/syncOperatorImg” style=“@style/syncImageView”
- android:layout_alignLeft=”@+id/edt_operator_name”
- android:layout_alignTop=”@+id/edt_operator_name”
- android:layout_alignBottom=”@+id/edt_operator_name” android:src=“@drawable/sync_operator” />
- –>
- <EditText
- android:drawableLeft=”@android:drawable/ic_lock_idle_lock”
- android:layout_width=”fill_parent”
- android:layout_height=”60dp”
- android:inputType=”textPassword”
- android:ems=”10”
- android:id=”@+id/resetpwd_edit_pwd_old”
- android:hint=”请输入您的旧密码”
- android:layout_below=”@+id/resetpwd_edit_name”
- android:layout_alignRight=”@+id/resetpwd_edit_name”
- android:layout_alignEnd=”@+id/resetpwd_edit_name”
- android:layout_alignLeft=”@+id/resetpwd_edit_name”
- android:layout_alignStart=”@+id/resetpwd_edit_name” />
- <Button
- android:layout_width=”fill_parent”
- android:layout_height=”wrap_content”
- android:text=”取消”
- android:id=”@+id/resetpwd_btn_cancel”
- android:textSize=”20dp”
- android:onClick=”not_to_reset”
- android:background=”#f71818”
- android:layout_below=”@+id/resetpwd_btn_sure”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true”
- android:layout_marginTop=”20dp” />
- <EditText
- android:drawableLeft=”@android:drawable/ic_lock_idle_lock”
- android:layout_width=”fill_parent”
- android:layout_height=”60dp”
- android:inputType=”textPassword”
- android:ems=”10”
- android:id=”@+id/resetpwd_edit_pwd_new”
- android:layout_below=”@+id/resetpwd_edit_pwd_old”
- android:layout_centerHorizontal=”true”
- android:hint=”请确认您的新密码”
- />
- <Button
- android:layout_width=”fill_parent”
- android:layout_height=”wrap_content”
- android:text=”确定”
- android:id=”@+id/resetpwd_btn_sure”
- android:textSize=”20dp”
- android:onClick=”sure_to_reset”
- android:background=”#1cf718”
- android:layout_marginTop=”92dp”
- android:layout_below=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true” />
- <EditText
- android:drawableLeft=”@android:drawable/ic_lock_idle_lock”
- android:layout_width=”fill_parent”
- android:layout_height=”60dp”
- android:inputType=”textPassword”
- android:ems=”10”
- android:id=”@+id/resetpwd_edit_pwd_check”
- android:hint=”请输入您的新密码”
- android:layout_below=”@+id/resetpwd_edit_pwd_new”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true” />
- </RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin"android:weightSum="1"><EditTextandroid:drawableLeft="@android:drawable/ic_menu_myplaces"android:layout_width="wrap_content"android:layout_height="60dp"android:inputType="textPersonName"android:ems="10"android:id="@+id/resetpwd_edit_name"android:layout_alignParentTop="true"android:hint="请输入您的用户名"android:layout_alignLeft="@+id/resetpwd_edit_pwd_new"android:layout_alignStart="@+id/resetpwd_edit_pwd_new"android:layout_alignRight="@+id/resetpwd_edit_pwd_new"android:layout_alignEnd="@+id/resetpwd_edit_pwd_new" /><!--<EditText android:id="@+id/edt_operator_name" style="@style/syncEditText"android:hint="@string/hint_operator_name" /><ImageView android:id="@+id/syncOperatorImg" style="@style/syncImageView"android:layout_alignLeft="@+id/edt_operator_name"android:layout_alignTop="@+id/edt_operator_name"android:layout_alignBottom="@+id/edt_operator_name" android:src="@drawable/sync_operator" />--><EditTextandroid:drawableLeft="@android:drawable/ic_lock_idle_lock"android:layout_width="fill_parent"android:layout_height="60dp"android:inputType="textPassword"android:ems="10"android:id="@+id/resetpwd_edit_pwd_old"android:hint="请输入您的旧密码"android:layout_below="@+id/resetpwd_edit_name"android:layout_alignRight="@+id/resetpwd_edit_name"android:layout_alignEnd="@+id/resetpwd_edit_name"android:layout_alignLeft="@+id/resetpwd_edit_name"android:layout_alignStart="@+id/resetpwd_edit_name" /><Buttonandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="取消"android:id="@+id/resetpwd_btn_cancel"android:textSize="20dp"android:onClick="not_to_reset"android:background="#f71818"android:layout_below="@+id/resetpwd_btn_sure"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:layout_marginTop="20dp" /><EditTextandroid:drawableLeft="@android:drawable/ic_lock_idle_lock"android:layout_width="fill_parent"android:layout_height="60dp"android:inputType="textPassword"android:ems="10"android:id="@+id/resetpwd_edit_pwd_new"android:layout_below="@+id/resetpwd_edit_pwd_old"android:layout_centerHorizontal="true"android:hint="请确认您的新密码"/><Buttonandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="确定"android:id="@+id/resetpwd_btn_sure"android:textSize="20dp"android:onClick="sure_to_reset"android:background="#1cf718"android:layout_marginTop="92dp"android:layout_below="@+id/resetpwd_edit_pwd_new"android:layout_alignParentLeft="true"android:layout_alignParentStart="true" /><EditTextandroid:drawableLeft="@android:drawable/ic_lock_idle_lock"android:layout_width="fill_parent"android:layout_height="60dp"android:inputType="textPassword"android:ems="10"android:id="@+id/resetpwd_edit_pwd_check"android:hint="请输入您的新密码"android:layout_below="@+id/resetpwd_edit_pwd_new"android:layout_alignParentLeft="true"android:layout_alignParentStart="true" /></RelativeLayout>
user.xml【个人中心】 - <?xml version=“1.0” encoding=“utf-8”?>
- <RelativeLayout xmlns:android=”http://schemas.android.com/apk/res/android”
- android:layout_width=”match_parent”
- android:layout_height=”match_parent”
- android:paddingBottom=”@dimen/activity_vertical_margin”
- android:paddingLeft=”@dimen/activity_horizontal_margin”
- android:paddingRight=”@dimen/activity_horizontal_margin”
- android:paddingTop=”@dimen/activity_vertical_margin”>
- <TextView
- android:layout_width=”wrap_content”
- android:layout_height=”wrap_content”
- android:textAppearance=”?android:attr/textAppearanceLarge”
- android:text=”FooilshFan您好,欢迎回来!”
- android:id=”@+id/textView”
- android:layout_centerHorizontal=”true”
- android:layout_marginLeft=”50dp”
- android:layout_marginTop=”6dp”
- android:textSize=”16dp” />
- <Button
- android:layout_width=”wrap_content”
- android:layout_height=”wrap_content”
- android:text=”退出”
- android:id=”@+id/returnback”
- android:layout_below=”@+id/textView”
- android:layout_marginTop=”36dp”
- android:onClick=”back_to_login”
- android:textColor=”#ffffff”
- android:textSize=”20dp”
- android:background=”#d95b5b”
- android:layout_alignParentLeft=”true”
- android:layout_alignParentStart=”true”
- android:layout_alignParentRight=”true”
- android:layout_alignParentEnd=”true” />
- </RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin"><TextViewandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:textAppearance="?android:attr/textAppearanceLarge"android:text="FooilshFan您好,欢迎回来!"android:id="@+id/textView"android:layout_centerHorizontal="true"android:layout_marginLeft="50dp"android:layout_marginTop="6dp"android:textSize="16dp" /><Buttonandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:text="退出"android:id="@+id/returnback"android:layout_below="@+id/textView"android:layout_marginTop="36dp"android:onClick="back_to_login"android:textColor="#ffffff"android:textSize="20dp"android:background="#d95b5b"android:layout_alignParentLeft="true"android:layout_alignParentStart="true"android:layout_alignParentRight="true"android:layout_alignParentEnd="true" /></RelativeLayout>
2:用户数据管理的类
- package com.example.foolishfan.user_v10;
- public class UserData {
- private String userName; //用户名
- private String userPwd; //用户密码
- private int userId; //用户ID号
- public int pwdresetFlag=0;
- //获取用户名
- public String getUserName() { //获取用户名
- return userName;
- }
- //设置用户名
- public void setUserName(String userName) { //输入用户名
- this.userName = userName;
- }
- //获取用户密码
- public String getUserPwd() { //获取用户密码
- return userPwd;
- }
- //设置用户密码
- public void setUserPwd(String userPwd) { //输入用户密码
- this.userPwd = userPwd;
- }
- //获取用户id
- public int getUserId() { //获取用户ID号
- return userId;
- }
- //设置用户id
- public void setUserId(int userId) { //设置用户ID号
- this.userId = userId;
- }
- public UserData(String userName, String userPwd) { //这里只采用用户名和密码
- super();
- this.userName = userName;
- this.userPwd = userPwd;
- }
- }
package com.example.foolishfan.user_v10;
public class UserData {private String userName; //用户名private String userPwd; //用户密码private int userId; //用户ID号public int pwdresetFlag=0;//获取用户名public String getUserName() { //获取用户名return userName;}//设置用户名public void setUserName(String userName) { //输入用户名this.userName = userName;}//获取用户密码public String getUserPwd() { //获取用户密码return userPwd;}//设置用户密码public void setUserPwd(String userPwd) { //输入用户密码this.userPwd = userPwd;}//获取用户idpublic int getUserId() { //获取用户ID号return userId;}//设置用户idpublic void setUserId(int userId) { //设置用户ID号this.userId = userId;}public UserData(String userName, String userPwd) { //这里只采用用户名和密码super();this.userName = userName;this.userPwd = userPwd;}}
UserDataManager.java【用户管理】 - package com.example.foolishfan.user_v10;
- import android.content.ContentValues;
- import android.content.Context;
- import android.database.Cursor;
- import android.database.SQLException;
- import android.database.sqlite.SQLiteDatabase;
- import android.database.sqlite.SQLiteOpenHelper;
- import android.util.Log;
- public class UserDataManager { //用户数据管理类
- //一些宏定义和声明
- private static final String TAG = “UserDataManager”;
- private static final String DB_NAME = “user_data”;
- private static final String TABLE_NAME = “users”;
- public static final String ID = “_id”;
- public static final String USER_NAME = “user_name”;
- public static final String USER_PWD = “user_pwd”;
- // public static final String SILENT = “silent”;
- // public static final String VIBRATE = “vibrate”;
- private static final int DB_VERSION = 2;
- private Context mContext = null;
- //创建用户book表
- private static final String DB_CREATE = “CREATE TABLE ” + TABLE_NAME + “ (“
- + ID + ” integer primary key,” + USER_NAME + “ varchar,”
- + USER_PWD + ” varchar” + “);”;
- private SQLiteDatabase mSQLiteDatabase = null;
- private DataBaseManagementHelper mDatabaseHelper = null;
- //DataBaseManagementHelper继承自SQLiteOpenHelper
- private static class DataBaseManagementHelper extends SQLiteOpenHelper {
- DataBaseManagementHelper(Context context) {
- super(context, DB_NAME, null, DB_VERSION);
- }
- @Override
- public void onCreate(SQLiteDatabase db) {
- Log.i(TAG,”db.getVersion()=”+db.getVersion());
- db.execSQL(”DROP TABLE IF EXISTS ” + TABLE_NAME + “;”);
- db.execSQL(DB_CREATE);
- Log.i(TAG, ”db.execSQL(DB_CREATE)”);
- Log.e(TAG, DB_CREATE);
- }
- @Override
- public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
- Log.i(TAG, ”DataBaseManagementHelper onUpgrade”);
- onCreate(db);
- }
- }
- public UserDataManager(Context context) {
- mContext = context;
- Log.i(TAG, ”UserDataManager construction!”);
- }
- //打开数据库
- public void openDataBase() throws SQLException {
- mDatabaseHelper = new DataBaseManagementHelper(mContext);
- mSQLiteDatabase = mDatabaseHelper.getWritableDatabase();
- }
- //关闭数据库
- public void closeDataBase() throws SQLException {
- mDatabaseHelper.close();
- }
- //添加新用户,即注册
- public long insertUserData(UserData userData) {
- String userName=userData.getUserName();
- String userPwd=userData.getUserPwd();
- ContentValues values = new ContentValues();
- values.put(USER_NAME, userName);
- values.put(USER_PWD, userPwd);
- return mSQLiteDatabase.insert(TABLE_NAME, ID, values);
- }
- //更新用户信息,如修改密码
- public boolean updateUserData(UserData userData) {
- //int id = userData.getUserId();
- String userName = userData.getUserName();
- String userPwd = userData.getUserPwd();
- ContentValues values = new ContentValues();
- values.put(USER_NAME, userName);
- values.put(USER_PWD, userPwd);
- return mSQLiteDatabase.update(TABLE_NAME, values,null, null) > 0;
- //return mSQLiteDatabase.update(TABLE_NAME, values, ID + ”=” + id, null) > 0;
- }
- //
- public Cursor fetchUserData(int id) throws SQLException {
- Cursor mCursor = mSQLiteDatabase.query(false, TABLE_NAME, null, ID
- + ”=” + id, null, null, null, null, null);
- if (mCursor != null) {
- mCursor.moveToFirst();
- }
- return mCursor;
- }
- //
- public Cursor fetchAllUserDatas() {
- return mSQLiteDatabase.query(TABLE_NAME, null, null, null, null, null,
- null);
- }
- //根据id删除用户
- public boolean deleteUserData(int id) {
- return mSQLiteDatabase.delete(TABLE_NAME, ID + “=” + id, null) > 0;
- }
- //根据用户名注销
- public boolean deleteUserDatabyname(String name) {
- return mSQLiteDatabase.delete(TABLE_NAME, USER_NAME + “=” + name, null) > 0;
- }
- //删除所有用户
- public boolean deleteAllUserDatas() {
- return mSQLiteDatabase.delete(TABLE_NAME, null, null) > 0;
- }
- //
- public String getStringByColumnName(String columnName, int id) {
- Cursor mCursor = fetchUserData(id);
- int columnIndex = mCursor.getColumnIndex(columnName);
- String columnValue = mCursor.getString(columnIndex);
- mCursor.close();
- return columnValue;
- }
- //
- public boolean updateUserDataById(String columnName, int id,
- String columnValue) {
- ContentValues values = new ContentValues();
- values.put(columnName, columnValue);
- return mSQLiteDatabase.update(TABLE_NAME, values, ID + “=” + id, null) > 0;
- }
- //根据用户名找用户,可以判断注册时用户名是否已经存在
- public int findUserByName(String userName){
- Log.i(TAG,”findUserByName , userName=”+userName);
- int result=0;
- Cursor mCursor=mSQLiteDatabase.query(TABLE_NAME, null, USER_NAME+“=”+userName, null, null, null, null);
- if(mCursor!=null){
- result=mCursor.getCount();
- mCursor.close();
- Log.i(TAG,”findUserByName , result=”+result);
- }
- return result;
- }
- //根据用户名和密码找用户,用于登录
- public int findUserByNameAndPwd(String userName,String pwd){
- Log.i(TAG,”findUserByNameAndPwd”);
- int result=0;
- Cursor mCursor=mSQLiteDatabase.query(TABLE_NAME, null, USER_NAME+“=”+userName+“ and ”+USER_PWD+“=”+pwd,
- null, null, null, null);
- if(mCursor!=null){
- result=mCursor.getCount();
- mCursor.close();
- Log.i(TAG,”findUserByNameAndPwd , result=”+result);
- }
- return result;
- }
- }
package com.example.foolishfan.user_v10;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;public class UserDataManager { //用户数据管理类//一些宏定义和声明private static final String TAG = "UserDataManager";private static final String DB_NAME = "user_data";private static final String TABLE_NAME = "users";public static final String ID = "_id";public static final String USER_NAME = "user_name";public static final String USER_PWD = "user_pwd";
// public static final String SILENT = "silent";
// public static final String VIBRATE = "vibrate";private static final int DB_VERSION = 2;private Context mContext = null;//创建用户book表private static final String DB_CREATE = "CREATE TABLE " + TABLE_NAME + " ("+ ID + " integer primary key," + USER_NAME + " varchar,"+ USER_PWD + " varchar" + ");";private SQLiteDatabase mSQLiteDatabase = null;private DataBaseManagementHelper mDatabaseHelper = null;//DataBaseManagementHelper继承自SQLiteOpenHelperprivate static class DataBaseManagementHelper extends SQLiteOpenHelper {DataBaseManagementHelper(Context context) {super(context, DB_NAME, null, DB_VERSION);}@Overridepublic void onCreate(SQLiteDatabase db) {Log.i(TAG,"db.getVersion()="+db.getVersion());db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME + ";");db.execSQL(DB_CREATE);Log.i(TAG, "db.execSQL(DB_CREATE)");Log.e(TAG, DB_CREATE);}@Overridepublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {Log.i(TAG, "DataBaseManagementHelper onUpgrade");onCreate(db);}}public UserDataManager(Context context) {mContext = context;Log.i(TAG, "UserDataManager construction!");}//打开数据库public void openDataBase() throws SQLException {mDatabaseHelper = new DataBaseManagementHelper(mContext);mSQLiteDatabase = mDatabaseHelper.getWritableDatabase();}//关闭数据库public void closeDataBase() throws SQLException {mDatabaseHelper.close();}//添加新用户,即注册public long insertUserData(UserData userData) {String userName=userData.getUserName();String userPwd=userData.getUserPwd();ContentValues values = new ContentValues();values.put(USER_NAME, userName);values.put(USER_PWD, userPwd);return mSQLiteDatabase.insert(TABLE_NAME, ID, values);}//更新用户信息,如修改密码public boolean updateUserData(UserData userData) {//int id = userData.getUserId();String userName = userData.getUserName();String userPwd = userData.getUserPwd();ContentValues values = new ContentValues();values.put(USER_NAME, userName);values.put(USER_PWD, userPwd);return mSQLiteDatabase.update(TABLE_NAME, values,null, null) > 0;//return mSQLiteDatabase.update(TABLE_NAME, values, ID + "=" + id, null) > 0;}//public Cursor fetchUserData(int id) throws SQLException {Cursor mCursor = mSQLiteDatabase.query(false, TABLE_NAME, null, ID+ "=" + id, null, null, null, null, null);if (mCursor != null) {mCursor.moveToFirst();}return mCursor;}//public Cursor fetchAllUserDatas() {return mSQLiteDatabase.query(TABLE_NAME, null, null, null, null, null,null);}//根据id删除用户public boolean deleteUserData(int id) {return mSQLiteDatabase.delete(TABLE_NAME, ID + "=" + id, null) > 0;}//根据用户名注销public boolean deleteUserDatabyname(String name) {return mSQLiteDatabase.delete(TABLE_NAME, USER_NAME + "=" + name, null) > 0;}//删除所有用户public boolean deleteAllUserDatas() {return mSQLiteDatabase.delete(TABLE_NAME, null, null) > 0;}//public String getStringByColumnName(String columnName, int id) {Cursor mCursor = fetchUserData(id);int columnIndex = mCursor.getColumnIndex(columnName);String columnValue = mCursor.getString(columnIndex);mCursor.close();return columnValue;}//public boolean updateUserDataById(String columnName, int id,String columnValue) {ContentValues values = new ContentValues();values.put(columnName, columnValue);return mSQLiteDatabase.update(TABLE_NAME, values, ID + "=" + id, null) > 0;}//根据用户名找用户,可以判断注册时用户名是否已经存在public int findUserByName(String userName){Log.i(TAG,"findUserByName , userName="+userName);int result=0;Cursor mCursor=mSQLiteDatabase.query(TABLE_NAME, null, USER_NAME+"="+userName, null, null, null, null);if(mCursor!=null){result=mCursor.getCount();mCursor.close();Log.i(TAG,"findUserByName , result="+result);}return result;}//根据用户名和密码找用户,用于登录public int findUserByNameAndPwd(String userName,String pwd){Log.i(TAG,"findUserByNameAndPwd");int result=0;Cursor mCursor=mSQLiteDatabase.query(TABLE_NAME, null, USER_NAME+"="+userName+" and "+USER_PWD+"="+pwd,null, null, null, null);if(mCursor!=null){result=mCursor.getCount();mCursor.close();Log.i(TAG,"findUserByNameAndPwd , result="+result);}return result;}}
3:具体操作的实现代码,即各个activity
Login.java【用户登录activity】- package com.example.foolishfan.user_v10;
- import android.app.Activity;
- import android.content.Intent;
- import android.content.SharedPreferences;
- import android.os.Bundle;
- import android.view.View;
- import android.view.View.OnClickListener;
- import android.widget.Button;
- import android.widget.CheckBox;
- import android.widget.EditText;
- import android.widget.ImageView;
- import android.widget.TextView;
- import android.widget.Toast;
- public class Login extends Activity { //登录界面活动
- public int pwdresetFlag=0;
- private EditText mAccount; //用户名编辑
- private EditText mPwd; //密码编辑
- private Button mRegisterButton; //注册按钮
- private Button mLoginButton; //登录按钮
- private Button mCancleButton; //注销按钮
- private CheckBox mRememberCheck;
- private SharedPreferences login_sp;
- private String userNameValue,passwordValue;
- private View loginView; //登录
- private View loginSuccessView;
- private TextView loginSuccessShow;
- private TextView mChangepwdText;
- private UserDataManager mUserDataManager; //用户数据管理类
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.login);
- //通过id找到相应的控件
- mAccount = (EditText) findViewById(R.id.login_edit_account);
- mPwd = (EditText) findViewById(R.id.login_edit_pwd);
- mRegisterButton = (Button) findViewById(R.id.login_btn_register);
- mLoginButton = (Button) findViewById(R.id.login_btn_login);
- mCancleButton = (Button) findViewById(R.id.login_btn_cancle);
- loginView=findViewById(R.id.login_view);
- loginSuccessView=findViewById(R.id.login_success_view);
- loginSuccessShow=(TextView) findViewById(R.id.login_success_show);
- mChangepwdText = (TextView) findViewById(R.id.login_text_change_pwd);
- mRememberCheck = (CheckBox) findViewById(R.id.Login_Remember);
- login_sp = getSharedPreferences(”userInfo”, 0);
- String name=login_sp.getString(”USER_NAME”, “”);
- String pwd =login_sp.getString(”PASSWORD”, “”);
- boolean choseRemember =login_sp.getBoolean(“mRememberCheck”, false);
- boolean choseAutoLogin =login_sp.getBoolean(“mAutologinCheck”, false);
- //如果上次选了记住密码,那进入登录页面也自动勾选记住密码,并填上用户名和密码
- if(choseRemember){
- mAccount.setText(name);
- mPwd.setText(pwd);
- mRememberCheck.setChecked(true);
- }
- mRegisterButton.setOnClickListener(mListener); //采用OnClickListener方法设置不同按钮按下之后的监听事件
- mLoginButton.setOnClickListener(mListener);
- mCancleButton.setOnClickListener(mListener);
- mChangepwdText.setOnClickListener(mListener);
- ImageView image = (ImageView) findViewById(R.id.logo); //使用ImageView显示logo
- image.setImageResource(R.drawable.logo);
- if (mUserDataManager == null) {
- mUserDataManager = new UserDataManager(this);
- mUserDataManager.openDataBase(); //建立本地数据库
- }
- }
- OnClickListener mListener = new OnClickListener() { //不同按钮按下的监听事件选择
- public void onClick(View v) {
- switch (v.getId()) {
- case R.id.login_btn_register: //登录界面的注册按钮
- Intent intent_Login_to_Register = new Intent(Login.this,Register.class) ; //切换Login Activity至User Activity
- startActivity(intent_Login_to_Register);
- finish();
- break;
- case R.id.login_btn_login: //登录界面的登录按钮
- login();
- break;
- case R.id.login_btn_cancle: //登录界面的注销按钮
- cancel();
- break;
- case R.id.login_text_change_pwd: //登录界面的注销按钮
- Intent intent_Login_to_reset = new Intent(Login.this,Resetpwd.class) ; //切换Login Activity至User Activity
- startActivity(intent_Login_to_reset);
- finish();
- break;
- }
- }
- };
- public void login() { //登录按钮监听事件
- if (isUserNameAndPwdValid()) {
- String userName = mAccount.getText().toString().trim(); //获取当前输入的用户名和密码信息
- String userPwd = mPwd.getText().toString().trim();
- SharedPreferences.Editor editor =login_sp.edit();
- int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd);
- if(result==1){ //返回1说明用户名和密码均正确
- //保存用户名和密码
- editor.putString(”USER_NAME”, userName);
- editor.putString(”PASSWORD”, userPwd);
- //是否记住密码
- if(mRememberCheck.isChecked()){
- editor.putBoolean(”mRememberCheck”, true);
- }else{
- editor.putBoolean(”mRememberCheck”, false);
- }
- editor.commit();
- Intent intent = new Intent(Login.this,User.class) ; //切换Login Activity至User Activity
- startActivity(intent);
- finish();
- Toast.makeText(this, getString(R.string.login_success),Toast.LENGTH_SHORT).show();//登录成功提示
- }else if(result==0){
- Toast.makeText(this, getString(R.string.login_fail),Toast.LENGTH_SHORT).show(); //登录失败提示
- }
- }
- }
- public void cancel() { //注销
- if (isUserNameAndPwdValid()) {
- String userName = mAccount.getText().toString().trim(); //获取当前输入的用户名和密码信息
- String userPwd = mPwd.getText().toString().trim();
- int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd);
- if(result==1){ //返回1说明用户名和密码均正确
- Toast.makeText(this, getString(R.string.cancel_success),Toast.LENGTH_SHORT).show();<span style=“font-family: Arial;”>//注销成功提示</span>
- mPwd.setText(”“);
- mAccount.setText(”“);
- mUserDataManager.deleteUserDatabyname(userName);
- }else if(result==0){
- Toast.makeText(this, getString(R.string.cancel_fail),Toast.LENGTH_SHORT).show(); //注销失败提示
- }
- }
- }
- public boolean isUserNameAndPwdValid() {
- if (mAccount.getText().toString().trim().equals(“”)) {
- Toast.makeText(this, getString(R.string.account_empty),
- Toast.LENGTH_SHORT).show();
- return false;
- } else if (mPwd.getText().toString().trim().equals(“”)) {
- Toast.makeText(this, getString(R.string.pwd_empty),
- Toast.LENGTH_SHORT).show();
- return false;
- }
- return true;
- }
- @Override
- protected void onResume() {
- if (mUserDataManager == null) {
- mUserDataManager = new UserDataManager(this);
- mUserDataManager.openDataBase();
- }
- super.onResume();
- }
- @Override
- protected void onDestroy() {
- super.onDestroy();
- }
- @Override
- protected void onPause() {
- if (mUserDataManager != null) {
- mUserDataManager.closeDataBase();
- mUserDataManager = null;
- }
- super.onPause();
- }
- }
package com.example.foolishfan.user_v10;import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;public class Login extends Activity { //登录界面活动public int pwdresetFlag=0;private EditText mAccount; //用户名编辑private EditText mPwd; //密码编辑private Button mRegisterButton; //注册按钮private Button mLoginButton; //登录按钮private Button mCancleButton; //注销按钮private CheckBox mRememberCheck;private SharedPreferences login_sp;private String userNameValue,passwordValue;private View loginView; //登录private View loginSuccessView;private TextView loginSuccessShow;private TextView mChangepwdText;private UserDataManager mUserDataManager; //用户数据管理类@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.login);//通过id找到相应的控件mAccount = (EditText) findViewById(R.id.login_edit_account);mPwd = (EditText) findViewById(R.id.login_edit_pwd);mRegisterButton = (Button) findViewById(R.id.login_btn_register);mLoginButton = (Button) findViewById(R.id.login_btn_login);mCancleButton = (Button) findViewById(R.id.login_btn_cancle);loginView=findViewById(R.id.login_view);loginSuccessView=findViewById(R.id.login_success_view);loginSuccessShow=(TextView) findViewById(R.id.login_success_show);mChangepwdText = (TextView) findViewById(R.id.login_text_change_pwd);mRememberCheck = (CheckBox) findViewById(R.id.Login_Remember);login_sp = getSharedPreferences("userInfo", 0);String name=login_sp.getString("USER_NAME", "");String pwd =login_sp.getString("PASSWORD", "");boolean choseRemember =login_sp.getBoolean("mRememberCheck", false);boolean choseAutoLogin =login_sp.getBoolean("mAutologinCheck", false);//如果上次选了记住密码,那进入登录页面也自动勾选记住密码,并填上用户名和密码if(choseRemember){mAccount.setText(name);mPwd.setText(pwd);mRememberCheck.setChecked(true);}mRegisterButton.setOnClickListener(mListener); //采用OnClickListener方法设置不同按钮按下之后的监听事件mLoginButton.setOnClickListener(mListener);mCancleButton.setOnClickListener(mListener);mChangepwdText.setOnClickListener(mListener);ImageView image = (ImageView) findViewById(R.id.logo); //使用ImageView显示logoimage.setImageResource(R.drawable.logo);if (mUserDataManager == null) {mUserDataManager = new UserDataManager(this);mUserDataManager.openDataBase(); //建立本地数据库}}OnClickListener mListener = new OnClickListener() { //不同按钮按下的监听事件选择public void onClick(View v) {switch (v.getId()) {case R.id.login_btn_register: //登录界面的注册按钮Intent intent_Login_to_Register = new Intent(Login.this,Register.class) ; //切换Login Activity至User ActivitystartActivity(intent_Login_to_Register);finish();break;case R.id.login_btn_login: //登录界面的登录按钮login();break;case R.id.login_btn_cancle: //登录界面的注销按钮cancel();break;case R.id.login_text_change_pwd: //登录界面的注销按钮Intent intent_Login_to_reset = new Intent(Login.this,Resetpwd.class) ; //切换Login Activity至User ActivitystartActivity(intent_Login_to_reset);finish();break;}}};public void login() { //登录按钮监听事件if (isUserNameAndPwdValid()) {String userName = mAccount.getText().toString().trim(); //获取当前输入的用户名和密码信息String userPwd = mPwd.getText().toString().trim();SharedPreferences.Editor editor =login_sp.edit();int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd);if(result==1){ //返回1说明用户名和密码均正确//保存用户名和密码editor.putString("USER_NAME", userName);editor.putString("PASSWORD", userPwd);//是否记住密码if(mRememberCheck.isChecked()){editor.putBoolean("mRememberCheck", true);}else{editor.putBoolean("mRememberCheck", false);}editor.commit();Intent intent = new Intent(Login.this,User.class) ; //切换Login Activity至User ActivitystartActivity(intent);finish();Toast.makeText(this, getString(R.string.login_success),Toast.LENGTH_SHORT).show();//登录成功提示}else if(result==0){Toast.makeText(this, getString(R.string.login_fail),Toast.LENGTH_SHORT).show(); //登录失败提示}}}public void cancel() { //注销if (isUserNameAndPwdValid()) {String userName = mAccount.getText().toString().trim(); //获取当前输入的用户名和密码信息String userPwd = mPwd.getText().toString().trim();int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd);if(result==1){ //返回1说明用户名和密码均正确Toast.makeText(this, getString(R.string.cancel_success),Toast.LENGTH_SHORT).show();<span style="font-family: Arial;">//注销成功提示</span>mPwd.setText("");mAccount.setText("");mUserDataManager.deleteUserDatabyname(userName);}else if(result==0){Toast.makeText(this, getString(R.string.cancel_fail),Toast.LENGTH_SHORT).show(); //注销失败提示}}}public boolean isUserNameAndPwdValid() {if (mAccount.getText().toString().trim().equals("")) {Toast.makeText(this, getString(R.string.account_empty),Toast.LENGTH_SHORT).show();return false;} else if (mPwd.getText().toString().trim().equals("")) {Toast.makeText(this, getString(R.string.pwd_empty),Toast.LENGTH_SHORT).show();return false;}return true;}@Overrideprotected void onResume() {if (mUserDataManager == null) {mUserDataManager = new UserDataManager(this);mUserDataManager.openDataBase();}super.onResume();}@Overrideprotected void onDestroy() {super.onDestroy();}@Overrideprotected void onPause() {if (mUserDataManager != null) {mUserDataManager.closeDataBase();mUserDataManager = null;}super.onPause();}
}
Register.java【用户注册activity】 - package com.example.foolishfan.user_v10;
- import android.app.Activity;
- import android.content.Intent;
- import android.support.v7.app.AppCompatActivity;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.Button;
- import android.widget.EditText;
- import android.widget.Toast;
- public class Register extends AppCompatActivity {
- private EditText mAccount; //用户名编辑
- private EditText mPwd; //密码编辑
- private EditText mPwdCheck; //密码编辑
- private Button mSureButton; //确定按钮
- private Button mCancelButton; //取消按钮
- private UserDataManager mUserDataManager; //用户数据管理类
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.register);
- mAccount = (EditText) findViewById(R.id.resetpwd_edit_name);
- mPwd = (EditText) findViewById(R.id.resetpwd_edit_pwd_old);
- mPwdCheck = (EditText) findViewById(R.id.resetpwd_edit_pwd_new);
- mSureButton = (Button) findViewById(R.id.register_btn_sure);
- mCancelButton = (Button) findViewById(R.id.register_btn_cancel);
- mSureButton.setOnClickListener(m_register_Listener); //注册界面两个按钮的监听事件
- mCancelButton.setOnClickListener(m_register_Listener);
- if (mUserDataManager == null) {
- mUserDataManager = new UserDataManager(this);
- mUserDataManager.openDataBase(); //建立本地数据库
- }
- }
- View.OnClickListener m_register_Listener = new View.OnClickListener() { //不同按钮按下的监听事件选择
- public void onClick(View v) {
- switch (v.getId()) {
- case R.id.register_btn_sure: //确认按钮的监听事件
- register_check();
- break;
- case R.id.register_btn_cancel: //取消按钮的监听事件,由注册界面返回登录界面
- Intent intent_Register_to_Login = new Intent(Register.this,Login.class) ; //切换User Activity至Login Activity
- startActivity(intent_Register_to_Login);
- finish();
- break;
- }
- }
- };
- public void register_check() { //确认按钮的监听事件
- if (isUserNameAndPwdValid()) {
- String userName = mAccount.getText().toString().trim();
- String userPwd = mPwd.getText().toString().trim();
- String userPwdCheck = mPwdCheck.getText().toString().trim();
- //检查用户是否存在
- int count=mUserDataManager.findUserByName(userName);
- //用户已经存在时返回,给出提示文字
- if(count>0){
- Toast.makeText(this, getString(R.string.name_already_exist, userName),Toast.LENGTH_SHORT).show();
- return ;
- }
- if(userPwd.equals(userPwdCheck)==false){ //两次密码输入不一样
- Toast.makeText(this, getString(R.string.pwd_not_the_same),Toast.LENGTH_SHORT).show();
- return ;
- } else {
- UserData mUser = new UserData(userName, userPwd);
- mUserDataManager.openDataBase();
- long flag = mUserDataManager.insertUserData(mUser); //新建用户信息
- if (flag == -1) {
- Toast.makeText(this, getString(R.string.register_fail),Toast.LENGTH_SHORT).show();
- }else{
- Toast.makeText(this, getString(R.string.register_success),Toast.LENGTH_SHORT).show();
- Intent intent_Register_to_Login = new Intent(Register.this,Login.class) ; //切换User Activity至Login Activity
- startActivity(intent_Register_to_Login);
- finish();
- }
- }
- }
- }
- public boolean isUserNameAndPwdValid() {
- if (mAccount.getText().toString().trim().equals(“”)) {
- Toast.makeText(this, getString(R.string.account_empty),
- Toast.LENGTH_SHORT).show();
- return false;
- } else if (mPwd.getText().toString().trim().equals(“”)) {
- Toast.makeText(this, getString(R.string.pwd_empty),
- Toast.LENGTH_SHORT).show();
- return false;
- }else if(mPwdCheck.getText().toString().trim().equals(“”)) {
- Toast.makeText(this, getString(R.string.pwd_check_empty),
- Toast.LENGTH_SHORT).show();
- return false;
- }
- return true;
- }
- }
package com.example.foolishfan.user_v10;import android.app.Activity;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;public class Register extends AppCompatActivity {private EditText mAccount; //用户名编辑private EditText mPwd; //密码编辑private EditText mPwdCheck; //密码编辑private Button mSureButton; //确定按钮private Button mCancelButton; //取消按钮private UserDataManager mUserDataManager; //用户数据管理类@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.register);mAccount = (EditText) findViewById(R.id.resetpwd_edit_name);mPwd = (EditText) findViewById(R.id.resetpwd_edit_pwd_old);mPwdCheck = (EditText) findViewById(R.id.resetpwd_edit_pwd_new);mSureButton = (Button) findViewById(R.id.register_btn_sure);mCancelButton = (Button) findViewById(R.id.register_btn_cancel);mSureButton.setOnClickListener(m_register_Listener); //注册界面两个按钮的监听事件mCancelButton.setOnClickListener(m_register_Listener);if (mUserDataManager == null) {mUserDataManager = new UserDataManager(this);mUserDataManager.openDataBase(); //建立本地数据库}}View.OnClickListener m_register_Listener = new View.OnClickListener() { //不同按钮按下的监听事件选择public void onClick(View v) {switch (v.getId()) {case R.id.register_btn_sure: //确认按钮的监听事件register_check();break;case R.id.register_btn_cancel: //取消按钮的监听事件,由注册界面返回登录界面Intent intent_Register_to_Login = new Intent(Register.this,Login.class) ; //切换User Activity至Login ActivitystartActivity(intent_Register_to_Login);finish();break;}}};public void register_check() { //确认按钮的监听事件if (isUserNameAndPwdValid()) {String userName = mAccount.getText().toString().trim();String userPwd = mPwd.getText().toString().trim();String userPwdCheck = mPwdCheck.getText().toString().trim();//检查用户是否存在int count=mUserDataManager.findUserByName(userName);//用户已经存在时返回,给出提示文字if(count>0){Toast.makeText(this, getString(R.string.name_already_exist, userName),Toast.LENGTH_SHORT).show();return ;}if(userPwd.equals(userPwdCheck)==false){ //两次密码输入不一样Toast.makeText(this, getString(R.string.pwd_not_the_same),Toast.LENGTH_SHORT).show();return ;} else {UserData mUser = new UserData(userName, userPwd);mUserDataManager.openDataBase();long flag = mUserDataManager.insertUserData(mUser); //新建用户信息if (flag == -1) {Toast.makeText(this, getString(R.string.register_fail),Toast.LENGTH_SHORT).show();}else{Toast.makeText(this, getString(R.string.register_success),Toast.LENGTH_SHORT).show();Intent intent_Register_to_Login = new Intent(Register.this,Login.class) ; //切换User Activity至Login ActivitystartActivity(intent_Register_to_Login);finish();}}}}public boolean isUserNameAndPwdValid() {if (mAccount.getText().toString().trim().equals("")) {Toast.makeText(this, getString(R.string.account_empty),Toast.LENGTH_SHORT).show();return false;} else if (mPwd.getText().toString().trim().equals("")) {Toast.makeText(this, getString(R.string.pwd_empty),Toast.LENGTH_SHORT).show();return false;}else if(mPwdCheck.getText().toString().trim().equals("")) {Toast.makeText(this, getString(R.string.pwd_check_empty),Toast.LENGTH_SHORT).show();return false;}return true;}
}
Resetpwd.java【重新设置密码】 - package com.example.foolishfan.user_v10;
- import android.app.Activity;
- import android.content.Intent;
- import android.support.v7.app.AppCompatActivity;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.Button;
- import android.widget.EditText;
- import android.widget.RelativeLayout;
- import android.widget.Toast;
- public class Resetpwd extends AppCompatActivity {
- private EditText mAccount; //用户名编辑
- private EditText mPwd_old; //密码编辑
- private EditText mPwd_new; //密码编辑
- private EditText mPwdCheck; //密码编辑
- private Button mSureButton; //确定按钮
- private Button mCancelButton; //取消按钮
- private UserDataManager mUserDataManager; //用户数据管理类
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.resetpwd);
- mAccount = (EditText) findViewById(R.id.resetpwd_edit_name);
- mPwd_old = (EditText) findViewById(R.id.resetpwd_edit_pwd_old);
- mPwd_new = (EditText) findViewById(R.id.resetpwd_edit_pwd_new);
- mPwdCheck = (EditText) findViewById(R.id.resetpwd_edit_pwd_check);
- mSureButton = (Button) findViewById(R.id.resetpwd_btn_sure);
- mCancelButton = (Button) findViewById(R.id.resetpwd_btn_cancel);
- mSureButton.setOnClickListener(m_resetpwd_Listener); //注册界面两个按钮的监听事件
- mCancelButton.setOnClickListener(m_resetpwd_Listener);
- if (mUserDataManager == null) {
- mUserDataManager = new UserDataManager(this);
- mUserDataManager.openDataBase(); //建立本地数据库
- }
- }
- View.OnClickListener m_resetpwd_Listener = new View.OnClickListener() { //不同按钮按下的监听事件选择
- public void onClick(View v) {
- switch (v.getId()) {
- case R.id.resetpwd_btn_sure: //确认按钮的监听事件
- resetpwd_check();
- break;
- case R.id.resetpwd_btn_cancel: //取消按钮的监听事件,由注册界面返回登录界面
- Intent intent_Resetpwd_to_Login = new Intent(Resetpwd.this,Login.class) ; //切换Resetpwd Activity至Login Activity
- startActivity(intent_Resetpwd_to_Login);
- finish();
- break;
- }
- }
- };
- public void resetpwd_check() { //确认按钮的监听事件
- if (isUserNameAndPwdValid()) {
- String userName = mAccount.getText().toString().trim();
- String userPwd_old = mPwd_old.getText().toString().trim();
- String userPwd_new = mPwd_new.getText().toString().trim();
- String userPwdCheck = mPwdCheck.getText().toString().trim();
- int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd_old);
- if(result==1){ //返回1说明用户名和密码均正确,继续后续操作
- if(userPwd_new.equals(userPwdCheck)==false){ //两次密码输入不一样
- Toast.makeText(this, getString(R.string.pwd_not_the_same),Toast.LENGTH_SHORT).show();
- return ;
- } else {
- UserData mUser = new UserData(userName, userPwd_new);
- mUserDataManager.openDataBase();
- boolean flag = mUserDataManager.updateUserData(mUser);
- if (flag == false) {
- Toast.makeText(this, getString(R.string.resetpwd_fail),Toast.LENGTH_SHORT).show();
- }else{
- Toast.makeText(this, getString(R.string.resetpwd_success),Toast.LENGTH_SHORT).show();
- mUser.pwdresetFlag=1;
- Intent intent_Register_to_Login = new Intent(Resetpwd.this,Login.class) ; //切换User Activity至Login Activity
- startActivity(intent_Register_to_Login);
- finish();
- }
- }
- }else if(result==0){ //返回0说明用户名和密码不匹配,重新输入
- Toast.makeText(this, getString(R.string.pwd_not_fit_user),Toast.LENGTH_SHORT).show();
- return;
- }
- }
- }
- public boolean isUserNameAndPwdValid() {
- String userName = mAccount.getText().toString().trim();
- //检查用户是否存在
- int count=mUserDataManager.findUserByName(userName);
- //用户不存在时返回,给出提示文字
- if(count<=0){
- Toast.makeText(this, getString(R.string.name_not_exist, userName),Toast.LENGTH_SHORT).show();
- return false;
- }
- if (mAccount.getText().toString().trim().equals(“”)) {
- Toast.makeText(this, getString(R.string.account_empty),Toast.LENGTH_SHORT).show();
- return false;
- } else if (mPwd_old.getText().toString().trim().equals(“”)) {
- Toast.makeText(this, getString(R.string.pwd_empty),Toast.LENGTH_SHORT).show();
- return false;
- } else if (mPwd_new.getText().toString().trim().equals(“”)) {
- Toast.makeText(this, getString(R.string.pwd_new_empty),Toast.LENGTH_SHORT).show();
- return false;
- }else if(mPwdCheck.getText().toString().trim().equals(“”)) {
- Toast.makeText(this, getString(R.string.pwd_check_empty),Toast.LENGTH_SHORT).show();
- return false;
- }
- return true;
- }
- }
package com.example.foolishfan.user_v10;
import android.app.Activity;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.RelativeLayout;
import android.widget.Toast;public class Resetpwd extends AppCompatActivity {private EditText mAccount; //用户名编辑private EditText mPwd_old; //密码编辑private EditText mPwd_new; //密码编辑private EditText mPwdCheck; //密码编辑private Button mSureButton; //确定按钮private Button mCancelButton; //取消按钮private UserDataManager mUserDataManager; //用户数据管理类@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.resetpwd);mAccount = (EditText) findViewById(R.id.resetpwd_edit_name);mPwd_old = (EditText) findViewById(R.id.resetpwd_edit_pwd_old);mPwd_new = (EditText) findViewById(R.id.resetpwd_edit_pwd_new);mPwdCheck = (EditText) findViewById(R.id.resetpwd_edit_pwd_check);mSureButton = (Button) findViewById(R.id.resetpwd_btn_sure);mCancelButton = (Button) findViewById(R.id.resetpwd_btn_cancel);mSureButton.setOnClickListener(m_resetpwd_Listener); //注册界面两个按钮的监听事件mCancelButton.setOnClickListener(m_resetpwd_Listener);if (mUserDataManager == null) {mUserDataManager = new UserDataManager(this);mUserDataManager.openDataBase(); //建立本地数据库}}View.OnClickListener m_resetpwd_Listener = new View.OnClickListener() { //不同按钮按下的监听事件选择public void onClick(View v) {switch (v.getId()) {case R.id.resetpwd_btn_sure: //确认按钮的监听事件resetpwd_check();break;case R.id.resetpwd_btn_cancel: //取消按钮的监听事件,由注册界面返回登录界面Intent intent_Resetpwd_to_Login = new Intent(Resetpwd.this,Login.class) ; //切换Resetpwd Activity至Login ActivitystartActivity(intent_Resetpwd_to_Login);finish();break;}}};public void resetpwd_check() { //确认按钮的监听事件if (isUserNameAndPwdValid()) {String userName = mAccount.getText().toString().trim();String userPwd_old = mPwd_old.getText().toString().trim();String userPwd_new = mPwd_new.getText().toString().trim();String userPwdCheck = mPwdCheck.getText().toString().trim();int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd_old);if(result==1){ //返回1说明用户名和密码均正确,继续后续操作if(userPwd_new.equals(userPwdCheck)==false){ //两次密码输入不一样Toast.makeText(this, getString(R.string.pwd_not_the_same),Toast.LENGTH_SHORT).show();return ;} else {UserData mUser = new UserData(userName, userPwd_new);mUserDataManager.openDataBase();boolean flag = mUserDataManager.updateUserData(mUser);if (flag == false) {Toast.makeText(this, getString(R.string.resetpwd_fail),Toast.LENGTH_SHORT).show();}else{Toast.makeText(this, getString(R.string.resetpwd_success),Toast.LENGTH_SHORT).show();mUser.pwdresetFlag=1;Intent intent_Register_to_Login = new Intent(Resetpwd.this,Login.class) ; //切换User Activity至Login ActivitystartActivity(intent_Register_to_Login);finish();}}}else if(result==0){ //返回0说明用户名和密码不匹配,重新输入Toast.makeText(this, getString(R.string.pwd_not_fit_user),Toast.LENGTH_SHORT).show();return;}}}public boolean isUserNameAndPwdValid() {String userName = mAccount.getText().toString().trim();//检查用户是否存在int count=mUserDataManager.findUserByName(userName);//用户不存在时返回,给出提示文字if(count<=0){Toast.makeText(this, getString(R.string.name_not_exist, userName),Toast.LENGTH_SHORT).show();return false;}if (mAccount.getText().toString().trim().equals("")) {Toast.makeText(this, getString(R.string.account_empty),Toast.LENGTH_SHORT).show();return false;} else if (mPwd_old.getText().toString().trim().equals("")) {Toast.makeText(this, getString(R.string.pwd_empty),Toast.LENGTH_SHORT).show();return false;} else if (mPwd_new.getText().toString().trim().equals("")) {Toast.makeText(this, getString(R.string.pwd_new_empty),Toast.LENGTH_SHORT).show();return false;}else if(mPwdCheck.getText().toString().trim().equals("")) {Toast.makeText(this, getString(R.string.pwd_check_empty),Toast.LENGTH_SHORT).show();return false;}return true;}
}
User.java【用户个人中心】 - package com.example.foolishfan.user_v10;
- import android.content.Intent;
- import android.support.v7.app.AppCompatActivity;
- import android.os.Bundle;
- import android.view.View;
- import android.widget.Button;
- public class User extends AppCompatActivity {
- private Button mReturnButton;
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.user);
- mReturnButton = (Button)findViewById(R.id.returnback);
- }
- public void back_to_login(View view) {
- Intent intent3 = new Intent(User.this,Login.class) ;
- startActivity(intent3);
- finish();
- }
- }
package com.example.foolishfan.user_v10;import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;public class User extends AppCompatActivity {private Button mReturnButton;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.user);mReturnButton = (Button)findViewById(R.id.returnback);}public void back_to_login(View view) {Intent intent3 = new Intent(User.this,Login.class) ;startActivity(intent3);finish();}
}
二、功能分析
上面工程涉及到的这些内容,在网上有很多写的很有参考价值的资料,建议可单独熟悉各个部分内容,然后添加功能到已有代码基础上,由于好多天后才整理的博客,缺少很多刚学习时遇到的种种错误及其解决方法,细节之处还望多交流。
<1>:Button,TextView,TextEdit,ImageView,RatioButton等基本控件的使用
<2>:多个Activities之间的切换
<3>:使用Android本地数据库来管理用户信息
1:登录功能
- public void login() { //登录按钮监听事件
- if (isUserNameAndPwdValid()) {
- String userName = mAccount.getText().toString().trim();//获取当前输入的用户名和密码信息
- String userPwd = mPwd.getText().toString().trim();
- SharedPreferences.Editor editor =login_sp.edit();
- int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd);
- if(result==1){ //返回1说明用户名和密码均正确
- //保存用户名和密码
- editor.putString(”USER_NAME”, userName);
- editor.putString(”PASSWORD”, userPwd);
- //是否记住密码
- if(mRememberCheck.isChecked()){
- editor.putBoolean(”mRememberCheck”, true);
- }else{
- editor.putBoolean(”mRememberCheck”, false);
- }
- editor.commit();
- Intent intent = new Intent(Login.this,User.class) ;
- startActivity(intent);
- finish();
- Toast.makeText(this, getString(R.string.login_success),Toast.LENGTH_SHORT).show();//登录成功提示
- }else if(result==0){
- Toast.makeText(this, getString(R.string.login_fail),Toast.LENGTH_SHORT).show(); //登录失败提示
- }
- }
- }
public void login() { //登录按钮监听事件if (isUserNameAndPwdValid()) {String userName = mAccount.getText().toString().trim();//获取当前输入的用户名和密码信息String userPwd = mPwd.getText().toString().trim();SharedPreferences.Editor editor =login_sp.edit();int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd);if(result==1){ //返回1说明用户名和密码均正确//保存用户名和密码editor.putString("USER_NAME", userName);editor.putString("PASSWORD", userPwd);//是否记住密码if(mRememberCheck.isChecked()){editor.putBoolean("mRememberCheck", true);}else{editor.putBoolean("mRememberCheck", false);}editor.commit();Intent intent = new Intent(Login.this,User.class) ;startActivity(intent);finish();Toast.makeText(this, getString(R.string.login_success),Toast.LENGTH_SHORT).show();//登录成功提示}else if(result==0){Toast.makeText(this, getString(R.string.login_fail),Toast.LENGTH_SHORT).show(); //登录失败提示}}}
2:注册功能
登录界面上点击注册按钮,进入对应监听事件,直接实现从Login的Activity到Register的Activity的跳转,然后在Register的Activity上实现用户注册,核心函数:
- public void register_check() { //确认按钮的监听事件
- if (isUserNameAndPwdValid()) {
- String userName = mAccount.getText().toString().trim();
- String userPwd = mPwd.getText().toString().trim();
- String userPwdCheck = mPwdCheck.getText().toString().trim();
- //检查用户是否存在
- int count=mUserDataManager.findUserByName(userName);
- //用户已经存在时返回,给出提示文字
- if(count>0){
- Toast.makeText(this, getString(R.string.name_already_exist, userName),Toast.LENGTH_SHORT).show();
- return ;
- }
- if(userPwd.equals(userPwdCheck)==false){ //两次密码输入不一样
- Toast.makeText(this, getString(R.string.pwd_not_the_same),Toast.LENGTH_SHORT).show();
- return ;
- } else {
- UserData mUser = new UserData(userName, userPwd);
- mUserDataManager.openDataBase();
- long flag = mUserDataManager.insertUserData(mUser); //新建用户信息
- if (flag == -1) {
- Toast.makeText(this, getString(R.string.register_fail),Toast.LENGTH_SHORT).show();
- }else{
- Toast.makeText(this, getString(R.string.register_success),Toast.LENGTH_SHORT).show();
- Intent intent_Register_to_Login = new Intent(Register.this,Login.class) ;
- startActivity(intent_Register_to_Login);
- finish();
- }
- }
- }
- }
public void register_check() { //确认按钮的监听事件if (isUserNameAndPwdValid()) {String userName = mAccount.getText().toString().trim();String userPwd = mPwd.getText().toString().trim();String userPwdCheck = mPwdCheck.getText().toString().trim();//检查用户是否存在int count=mUserDataManager.findUserByName(userName);//用户已经存在时返回,给出提示文字if(count>0){Toast.makeText(this, getString(R.string.name_already_exist, userName),Toast.LENGTH_SHORT).show();return ;}if(userPwd.equals(userPwdCheck)==false){ //两次密码输入不一样Toast.makeText(this, getString(R.string.pwd_not_the_same),Toast.LENGTH_SHORT).show();return ;} else {UserData mUser = new UserData(userName, userPwd);mUserDataManager.openDataBase();long flag = mUserDataManager.insertUserData(mUser); //新建用户信息if (flag == -1) {Toast.makeText(this, getString(R.string.register_fail),Toast.LENGTH_SHORT).show();}else{Toast.makeText(this, getString(R.string.register_success),Toast.LENGTH_SHORT).show();Intent intent_Register_to_Login = new Intent(Register.this,Login.class) ; startActivity(intent_Register_to_Login);finish();}}}}
3:修改密码功能
在登录界面点击“修改密码”即可进入对应的Resetpwd的Activity,实现用户密码的修改,核心函数:
- public void resetpwd_check() { //确认按钮的监听事件
- if (isUserNameAndPwdValid()) {
- String userName = mAccount.getText().toString().trim();
- String userPwd_old = mPwd_old.getText().toString().trim();
- String userPwd_new = mPwd_new.getText().toString().trim();
- String userPwdCheck = mPwdCheck.getText().toString().trim();
- int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd_old);
- if(result==1){ //返回1说明用户名和密码均正确,继续后续操作
- if(userPwd_new.equals(userPwdCheck)==false){ //两次密码输入不一样
- Toast.makeText(this, getString(R.string.pwd_not_the_same),Toast.LENGTH_SHORT).show();
- return ;
- } else {
- UserData mUser = new UserData(userName, userPwd_new);
- mUserDataManager.openDataBase();
- boolean flag = mUserDataManager.updateUserData(mUser);
- if (flag == false) {
- Toast.makeText(this, getString(R.string.resetpwd_fail),Toast.LENGTH_SHORT).show();
- }else{
- Toast.makeText(this, getString(R.string.resetpwd_success),Toast.LENGTH_SHORT).show();
- mUser.pwdresetFlag=1;
- Intent intent_Register_to_Login = new Intent(Resetpwd.this,Login.class) ;
- startActivity(intent_Register_to_Login);
- finish();
- }
- }
- }else if(result==0){ //返回0说明用户名和密码不匹配,重新输入
- Toast.makeText(this, getString(R.string.pwd_not_fit_user),Toast.LENGTH_SHORT).show();
- return;
- }
- }
- }
public void resetpwd_check() { //确认按钮的监听事件if (isUserNameAndPwdValid()) {String userName = mAccount.getText().toString().trim();String userPwd_old = mPwd_old.getText().toString().trim();String userPwd_new = mPwd_new.getText().toString().trim();String userPwdCheck = mPwdCheck.getText().toString().trim();int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd_old);if(result==1){ //返回1说明用户名和密码均正确,继续后续操作if(userPwd_new.equals(userPwdCheck)==false){ //两次密码输入不一样Toast.makeText(this, getString(R.string.pwd_not_the_same),Toast.LENGTH_SHORT).show();return ;} else {UserData mUser = new UserData(userName, userPwd_new);mUserDataManager.openDataBase();boolean flag = mUserDataManager.updateUserData(mUser);if (flag == false) {Toast.makeText(this, getString(R.string.resetpwd_fail),Toast.LENGTH_SHORT).show();}else{Toast.makeText(this, getString(R.string.resetpwd_success),Toast.LENGTH_SHORT).show();mUser.pwdresetFlag=1;Intent intent_Register_to_Login = new Intent(Resetpwd.this,Login.class) ; startActivity(intent_Register_to_Login);finish();}}}else if(result==0){ //返回0说明用户名和密码不匹配,重新输入Toast.makeText(this, getString(R.string.pwd_not_fit_user),Toast.LENGTH_SHORT).show();return;}}}
4:注销功能
注销功能直接在登录界面,当用户名和密码均正确时,点击注销按钮将直接注销用户【各位可根据需求将注销放在个人中心里面进行操作】。核心函数:
- public void cancel() { //注销
- if (isUserNameAndPwdValid()) {
- String userName = mAccount.getText().toString().trim(); //获取当前输入的用户名和密码信息
- String userPwd = mPwd.getText().toString().trim();
- int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd);
- if(result==1){ //返回1说明用户名和密码均正确
- Toast.makeText(this, getString(R.string.cancel_success),Toast.LENGTH_SHORT).show();//登录成功提示
- mPwd.setText(”“);
- mAccount.setText(”“);
- mUserDataManager.deleteUserDatabyname(userName);
- }else if(result==0){
- Toast.makeText(this, getString(R.string.cancel_fail),Toast.LENGTH_SHORT).show(); //登录失败提示
- }
- }
- }
public void cancel() { //注销if (isUserNameAndPwdValid()) {String userName = mAccount.getText().toString().trim(); //获取当前输入的用户名和密码信息String userPwd = mPwd.getText().toString().trim();int result=mUserDataManager.findUserByNameAndPwd(userName, userPwd);if(result==1){ //返回1说明用户名和密码均正确Toast.makeText(this, getString(R.string.cancel_success),Toast.LENGTH_SHORT).show();//登录成功提示mPwd.setText("");mAccount.setText("");mUserDataManager.deleteUserDatabyname(userName);}else if(result==0){Toast.makeText(this, getString(R.string.cancel_fail),Toast.LENGTH_SHORT).show(); //登录失败提示}}}
5:记住密码
当记住密码的RadioButton为真时,系统将记住此时用户登录的信息,用户在下次登录时可避免再次输入用户名和密码的麻烦,实现细节在Login的Activity中。这里给一个大牛用SharedPreferences做的记住密码连接:这里
三、工程源码下载
转自StayFoolish_Fan的博客:http://blog.csdn.net/StayFoolish_Fan/article/details/51933563?locationNum=7&fps=1