Question

我有以下代码来发布意图：

        alarmMgr = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);
        Intent intent = new Intent("myLog");
        intent.putExtra("message", new Date().toString());
        alarmIntent = PendingIntent.getBroadcast(this, 0, intent, 0);

        LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
        alarmMgr.setRepeating(AlarmManager.ELAPSED_REALTIME,System.currentTimeMillis()+1000,5000,alarmIntent);

以下接收者：

public class myReceiver extends BroadcastReceiver {
    @Override public void onReceive(Context context, Intent intent) {
        // Extract data included in the Intent
        String message = intent.getStringExtra("message");
        logText.setText(logText.getText()+"\n"+message);
    }
}
private BroadcastReceiver mMessageReceiver = new myReceiver();

为什么我的mMessageReceiver仅使用sendBroadcast触发一次，但未收到alarmMgr广播的意图？

编辑：这也是我AndroidManifest.xml文件的相关部分：

    <receiver android:name=".MainApp$myReceiver" >
        <intent-filter>
            <action android:name="com.example.*.*" />
        </intent-filter>
    </receiver>

编辑2：更多信息：

@Override public void onResume() {
    super.onResume();
    // Register mMessageReceiver to receive messages.
    IntentFilter myIntentFilter = new IntentFilter();
    myIntentFilter.addAction("myLog");
    LocalBroadcastManager.getInstance(this).registerReceiver(mMessageReceiver,
            myIntentFilter);
}

这会覆盖MainActivitie s onResume()。

Answer 1

嗯，我可能不在这里，但这对我有用。所以在这种情况下，我在当前时间之前设置了一个警报（比如10分钟或者其他什么）。

    // Calculate the time when it expires.
    long wakeupTime = System.currentTimeMillis() + duration;

    Intent myIntent = new Intent(MainActivity.this, AlarmReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, myIntent,0);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    alarmManager.set(AlarmManager.RTC_WAKEUP, wakeupTime, pendingIntent);

设置闹钟以关闭并唤醒我的BroadcastReceiver（AlarmReceiver）。我希望这会有所帮助，我不会偏离这里。

如何使Android BroadcastReceiver与AlarmManager一起使用？

1 个答案: