1-项目场景：

展锐平台

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2-问题描述

选择“插入基座”时暂无法触发屏保

步骤：设置-显示-屏保-启用时机-插入基座
选择“插入基座”时暂无法触发屏保
该版本不支持该功能

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3-解决方案：

去除基座相关：

1. 定义宏（/device/common/common.mk）

+ ifeq ($(strip $(AGN_WHEN_TO_START_SCREENSAVER)),yes)
+     PRODUCT_VENDOR_PROPERTIES +=odm.agn.when_to_start_screensaver = true
+ endif

2. 开宏（/device/sprd/qogirn6pro/…/…/…/BoardConfigAP.mk）

+ AGN_WHEN_TO_START_SCREENSAVER = yes

3.（ /packages/apps/Settings）

• 定义两个字符串数组，这些字符串数组可以用于创建下拉列表，以便用户可以选择在何时启动屏幕保护程序。（res/values/arrays.xml）

+    <string-array name="when_to_start_screenSaver_entries" translatable="false">
+        <item>@string/screensaver_settings_summary_sleep</item>
+        <item>@string/screensaver_settings_summary_never</item>
+    </string-array>+    <string-array name="when_to_start_screenSaver_values" translatable="false">
+        <item>while_charging_only</item>
+        <item>never</item>
+    </string-array>

• 根据 WHEN_TO_START_SCREENSAVER 变量的值来选择要返回的字符串数组（也就是上一步定义的字符串数组）（src/com/android/settings/dream/WhenToDreamPicker.java）

 package com.android.settings.dream;+import android.os.SystemProperties;public class WhenToDreamPicker extends RadioButtonPickerFragment {private static final String TAG = "WhenToDreamPicker";
+	private static final boolean WHEN_TO_START_SCREENSAVER = SystemProperties.getBoolean("odm.agn.when_to_start_screensaver", false);+    //Add by Huangshiqi for BUG #78448 beginprivate String[] entries() {
+		if(WHEN_TO_START_SCREENSAVER){
+			return getResources().getStringArray(R.array.when_to_start_screenSaver_entries);
+		}return getResources().getStringArray(R.array.when_to_start_screensaver_entries);}private String[] keys() {
+		if(WHEN_TO_START_SCREENSAVER){
+			return getResources().getStringArray(R.array.when_to_start_screenSaver_values);
+		}return getResources().getStringArray(R.array.when_to_start_screensaver_values);}

• 首次进入屏保时，启用时机下方小字也去除基座相关内容（src/com/android/settings/dream/DreamSetting.java）

static int getDreamSettingDescriptionResId(@WhenToDream int dreamSetting) {switch (dreamSetting) {case WHILE_CHARGING:return R.string.screensaver_settings_summary_sleep;
-            case WHILE_DOCKED:
-                return R.string.screensaver_settings_summary_dock;
-            case EITHER:
-                return R.string.screensaver_settings_summary_either_long;case NEVER:default:return R.string.screensaver_settings_summary_never;}

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4-代码修改前后效果对比图：

代码修改前：

代码修改后：