绵阳网站建设怎么做免费查公司
文章目录
- Settings - 亮灭屏
- Settings - 恢复出厂设置
- Settings - 数字锁屏/解锁
- Settings - 设置系统时间
- PackageInstaller - 安装/卸载第三方应用
摘要：本文对系统模块进行改造，提供广播等形式的接口对外提供无法直接调用的系统级别接口，实现部分功能的集合。如果是广播形式，需要后台允许，避免被系统拦截。不定期更新。
Settings - 亮灭屏
一、注册静态广播
Index: packages/apps/Settings/AndroidManifest.xml
===================================================================
--- packages/apps/Settings/AndroidManifest.xml (版本 479)
+++ packages/apps/Settings/AndroidManifest.xml (版本 480)
@@ -4742,6 +4742,15 @@</intent-filter></service>
+
+ <receiver android:name=".BootCompleteReceiver"
+ android:exported="true">
+ <intent-filter>
+ <action android:name="android.intent.action.SCREEN_STATE"/>
+ </intent-filter>
+ </receiver> <!-- This is the longest AndroidManifest.xml ever. --></application></manifest>
二、功能实现
Index: packages/apps/Settings/src/com/android/settings/BootCompleteReceiver.java
===================================================================
--- packages/apps/Settings/src/com/android/settings/BootCompleteReceiver.java (不存在的)
+++ packages/apps/Settings/src/com/android/settings/BootCompleteReceiver.java (版本 480)
@@ -0,0 +1,48 @@
+package com.android.settings;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.os.PowerManager;
+import android.os.SystemClock;
+import android.util.Log;
+
+public class BootCompleteReceiver extends BroadcastReceiver {
+ private static String TAG ="BootCompleteReceiver";
+
+ @Override
+ public void onReceive(Context context, Intent intent) {
+ String action = intent.getAction();
+ if ("android.intent.action.SCREEN_STATE".equals(action)) {
+ boolean status = intent.getBooleanExtra("screen_state", false);
+ PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
+ if (status) {
+ pm.wakeUp(SystemClock.uptimeMillis());
+ } else {
+ pm.goToSleep(SystemClock.uptimeMillis());
+ }
+ return;
+ }
+ }
+}
Settings - 恢复出厂设置
一、注册静态广播
Index: packages/apps/Settings/AndroidManifest.xml
===================================================================
--- packages/apps/Settings/AndroidManifest.xml (版本 480)
+++ packages/apps/Settings/AndroidManifest.xml (版本 481)
@@ -4748,6 +4748,7 @@android:exported="true"><intent-filter>
+ <action android:name="com.android.settings.ACTION_ODM_MASTER_CLEAR"/></intent-filter></receiver>
二、功能实现
Index: packages/apps/Settings/src/com/android/settings/BootCompleteReceiver.java
===================================================================
--- packages/apps/Settings/src/com/android/settings/BootCompleteReceiver.java (版本 480)
+++ packages/apps/Settings/src/com/android/settings/BootCompleteReceiver.java (版本 481)
@@ -44,5 +44,21 @@}return;}
+
+ if ("com.android.settings.ACTION_ODM_MASTER_CLEAR".equals(action)) {
+ Intent clearIntent = new Intent(Intent.ACTION_MASTER_CLEAR);
+ clearIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
+ clearIntent.putExtra(Intent.EXTRA_REASON, "MasterClearConfirm");
+ context.sendBroadcast(clearIntent);
+ return;
+ }}}
Settings - 数字锁屏/解锁
一、注册静态广播
Index: packages/apps/Settings/AndroidManifest.xml
===================================================================
--- packages/apps/Settings/AndroidManifest.xml (版本 481)
+++ packages/apps/Settings/AndroidManifest.xml (版本 482)
@@ -4749,6 +4749,7 @@<intent-filter>
+ <action android:name="android.intent.action.LOCKSCREEN"/></intent-filter></receiver> 二、功能实现
Index: packages/apps/Settings/src/com/android/settings/BootCompleteReceiver.java
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