android程序监听home键与电源键

private final BroadcastReceiver homePressReceiver = new BroadcastReceiver() {  final String SYSTEM_DIALOG_REASON_KEY = "reason";  final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";  @Override  public void onReceive(Context context, Intent intent) {  String action = intent.getAction();  if (action.equals(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)) {  String reason = intent.getStringExtra(SYSTEM_DIALOG_REASON_KEY);  if (reason != null && reason.equals(SYSTEM_DIALOG_REASON_HOME_KEY)) {  //自己随意控制程序，关闭...  }  }  }  };

然后在onreate()方法中，注册

final IntentFilter homeFilter = new IntentFilter(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);  registerReceiver(homePressReceiver, homeFilter);

当然最后为了程序的严谨性也是为了防止出错，我们在onDestory()方法中，也要解除注册

if(homePressReceiver != null){  try {  unregisterReceiver(homePressReceiver);  } catch (Exception e) {  Log.e(TAG, "unregisterReceiver homePressReceiver failure :"+e.getCause());  }  }

2，电源监听，先要有权限

<uses-permission android:name="android.permission.WAKE_LOCK" />

然后监听两个action

Intent.ACTION_SCREEN_OFF  Intent.ACTION_SCREEN_ON  private final BroadcastReceiver mBatInfoReceiver = new BroadcastReceiver() {  @Override  public void onReceive(final Context context, final Intent intent) {  final String action = intent.getAction();  if (Intent.ACTION_SCREEN_OFF.equals(action)) {  //退出程序...  }  }  };  onCreate()方法中注册  IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF);  registerReceiver(mBatInfoReceiver, filter);  onDestory()方法中解除注册  if(mBatInfoReceiver != null){  try {  unregisterReceiver(mBatInfoReceiver);  } catch (Exception e) {  Log.e(TAG, "unregisterReceiver mBatInfoReceiver failure :"+e.getCause());  }  }