IOS开发之——彩票-帮助(11)

一概述

设置页面点击帮助，跳转帮助TableViewController页面
点击帮助列表中的每一项，打开WebView显示具体信息

二设置页面点击帮助，跳转帮助TableViewController页面

2.1 页面结构及功能分析

帮助页面是一个列表，构建ILHelpViewController继承ILBaseTableViewController
列表数据从Data下的help.json中获取，构建ILHtml Model存储help中的列表项
重写tableView的didSelectRowAtIndexPath方法，ILHtmlViewController的view(WebView)展示信息
ILHtmlViewController中多个信息在同一个页面需要跳转时，使用window.location.href跳转id的指定位置

三设置页面点击帮助，跳转帮助ableViewController页面

3.1 ILHtml(help.json)Model

ILHtml.h

#import <Foundation/Foundation.h>@interface ILHtml : NSObject
@property(nonatomic,copy) NSString *title;
@property(nonatomic,copy) NSString *ID;
@property(nonatomic,copy) NSString *html;+(instancetype)htmlWithDict:(NSDictionary *)dict;@end

ILHtml.m

#import "ILHtml.h"@implementation ILHtml+ (instancetype)htmlWithDict:(NSDictionary *)dict
{ILHtml *html=[[ILHtml alloc]init];html.title=dict[@"title"];html.ID=dict[@"id"];html.html=dict[@"html"];return html;
}
@end

3.2 ILHelpViewController(帮助页面)

#import "ILHelpViewController.h"
#import "ILSettingItem.h"
#import "ILSettingGroup.h"
#import "ILSettingCell.h"
#import "ILSettingArrowItem.h"
#import "ILSettingSwitchItem.h"
#import "ILScoreNoticeViewController.h"
#import "ILHtml.h"
#import "ILHtmlViewController.h"
#import "ILUINavigationController.h"@interface ILHelpViewController ()
//存储help.json
@property (nonatomic,strong) NSMutableArray *htmls;@end@implementation ILHelpViewController-(NSMutableArray *)htmls
{if (_htmls==nil) {_htmls=[NSMutableArray array];NSString *fileName=[[NSBundle mainBundle]pathForResource:@"MyResource/Data/help.json" ofType:nil];NSData *data=[NSData dataWithContentsOfFile:fileName];NSArray *jsonArr=[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:nil];for (NSDictionary *dict in jsonArr) {ILHtml *html=[ILHtml htmlWithDict:dict];[_htmls addObject:html];}}return _htmls;
}- (void)viewDidLoad {[super viewDidLoad];[self addGroup0];}
-(void)addGroup0
{//第0组
//    ILSettingItem *item1=[ILSettingArrowItem itemWithIcon:nil title:@"如何领奖？" destVcClass:nil];
//    ILSettingItem *item2=[ILSettingArrowItem itemWithIcon:nil title:@"如何充值？"];
//    ILSettingItem *item3=[ILSettingArrowItem itemWithIcon:nil title:@"如何提现？"];
//    ILSettingItem *item4=[ILSettingArrowItem itemWithIcon:nil title:@"如何购彩？"];
//    ILSettingItem *item5=[ILSettingArrowItem itemWithIcon:nil title:@"如何连续多期购买？"];
//
//    ILSettingGroup *group0=[[ILSettingGroup alloc]init];
//    group0.items=@[item1,item2,item3,item4,item5];
//    group0.header=@"标题头部-1";
//    group0.footer=@"标题尾部-1";
//
//    [self.dataList addObject:group0];NSMutableArray *items=[NSMutableArray array];//遍历模型for(ILHtml *html in self.htmls){ILSettingArrowItem *item=[ILSettingArrowItem itemWithIcon:nil title:html.title destVcClass:nil];[items addObject:item];}ILSettingGroup *group0=[[ILSettingGroup alloc]init];group0.items=items;[self.dataList addObject:group0];}//重写tableView的点击跳转
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{//取出每一行对应的Html模型ILHtml *html=self.htmls[indexPath.row];ILHtmlViewController *htmlVc=[[ILHtmlViewController alloc]init];htmlVc.html=html;htmlVc.title=html.title;ILUINavigationController *nav=[[ILUINavigationController alloc]initWithRootViewController:htmlVc];[self presentViewController:nav animated:YES completion:nil];
}@end

说明：

跳转时使用ILUINavigationController,已经定义好了标题颜色和样式
ILUINavigationController通过initWithRootViewController关联ILHtmlViewController

四点击帮助列表中的每一项，打开WebView显示具体信息

4.1 ILHtmlViewController.h

#import <UIKit/UIKit.h>
@class ILHtml;
@interface ILHtmlViewController : UIViewController
@property(nonatomic,strong) ILHtml *html;@end

4.2 ILHtmlViewController.m

#import "ILHtmlViewController.h"
#import "ILHtml.h"
@interface ILHtmlViewController ()<UIWebViewDelegate>@end@implementation ILHtmlViewController-(void)loadView
{self.view=[[UIWebView alloc]init];
}
- (void)viewDidLoad {[super viewDidLoad];// Do any additional setup after loading the view.self.view.backgroundColor=[UIColor whiteColor];UIBarButtonItem *cancle=[[UIBarButtonItem alloc]initWithTitle:@"取消" style:UIBarButtonItemStyleBordered target:self action:@selector(cancel)];self.navigationItem.leftBarButtonItem=cancle;UIWebView *webView=(UIWebView *)self.view;NSURL *url=[[NSBundle mainBundle]URLForResource:[NSString stringWithFormat:@"MyResource/Html/%@",_html.html] withExtension:nil];NSURLRequest *request=[NSURLRequest requestWithURL:url];webView.delegate=self;[webView loadRequest:request];
}-(void)cancel
{//回到上一个控制器[self dismissViewControllerAnimated:YES completion:nil];
}
-(void)webViewDidFinishLoad:(UIWebView *)webView
{NSString *js=[NSString stringWithFormat:@"window.location.href='#%@';",_html.ID];[webView stringByEvaluatingJavaScriptFromString:js];
}
@end