[英]Why doesn't this BroadcastReceiver work?
我想制作一個BroadcastReceiver
以便在屏幕關閉時得到通知,然后再次打開它,但是它什么也沒做,這是什么問題?
public class SplashScreen extends SherlockActivity {
PowerManager.WakeLock mWakeLock;
BroadcastReceiver rec = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
WakeLock screenLock = ((PowerManager) getSystemService(POWER_SERVICE))
.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK
| PowerManager.ACQUIRE_CAUSES_WAKEUP, "TAG");
screenLock.acquire();
}
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(com.sensounlock.R.layout.rotation);
IntentFilter filter = new IntentFilter(Intent.ACTION_SCREEN_OFF);
registerReceiver(rec, filter);
}
移動你的
BroadcastReceiver rec = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
WakeLock screenLock = ((PowerManager) getSystemService(POWER_SERVICE))
.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK
| PowerManager.ACQUIRE_CAUSES_WAKEUP, "TAG");
screenLock.acquire();
}
}
};
在你的創造下
public class SplashScreen extends SherlockActivity {
PowerManager.WakeLock mWakeLock;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(com.sensounlock.R.layout.rotation);
BroadcastReceiver rec = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
WakeLock screenLock = ((PowerManager) getSystemService(POWER_SERVICE))
.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK
| PowerManager.ACQUIRE_CAUSES_WAKEUP, "TAG");
screenLock.acquire();
}
}
};
registerReceiver(rec, new IntentFilter("package.name.xx"));
pi = PendingIntent.getBroadcast(this, 0, new Intent(
"package.name.xx"), 0);
}
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