Question

这是我的法典:

活动:

@Override
public void onCreate(Bundle savedInstanceState) {

...

Intent intent = new Intent(this, MyReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(
    this.getApplicationContext(), 234324243, intent, PendingIntent.FLAG_UPDATE_CURRENT);

AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);

alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()
    + (5 * 1000), pendingIntent);

...
}

广播:

public class MyReceiver extends BroadcastReceiver {

@Override
public void onReceive(Context context, Intent intent) {
    Intent service = new Intent(context, StartNotificationService.class);

    context.startService(service);
}

服务:

public class StartNotificationService extends Service {

@Override
public void onStart(Intent intent, int startId) {
    super.onStart(intent, startId);

    this.intent = intent;
    showNotification();
}

private void showNotification() {
    Date date = new Date(pror.getFirstMillis());

    Log.i("date", date.toString());

    Timer timer = new Timer();
    TimerTask timerTask = new TimerTask() {
        @Override
        public void run() {
            createNotification(contentTitle, contentText, tickerText);

            pror.calculateVak();
            pror.setFirstMillis(pror.getNextVak());

            createStatusBarNotification(contentTitle, contentText, tickerText);
        }
    };
    timer.schedule(timerTask, date);
}

}

甲型六氯环己烷

<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<application
     android:icon="@drawable/icon"
    android:label="@string/app_name" >
    <activity android:name=".ShowSettingsActivity" />

    <receiver android:name=".MyReceiver"/> 
    <service android:name=".service.StartNotificationService"/>

    <activity android:name=".PreferencesActivity" android:label="@string/app_name">
   </activity>
    <activity
        android:label="@string/app_name"
        android:name=".VakActivity" >
        <intent-filter >
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

当电话去睡觉时,警报管理人员可以开始通知/服务。

如果我离开活跃的电话——24小时状态,通知就会在某个时候发出。

我在哪里犯错误?

Answer 1

这样做有两种办法。

If all you re doing is creating a status bar notification, then just do that in your BroadcastReceiver
If you need your service to run prior to making the notification, and you need this to be able to happen while device is asleep, you need to acquire a WAKE_LOCK

因此,在您的班级机构中,请你提供所需的服务:

PowerManager pm;
PowerManager.WakeLock wl;

之后,在您的<代码>上,您需要:

pm = (PowerManager)getSystemService(Context.POWER_SERVICE);
wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "My Tag");
wl.acquire();

之后在onDestroy中。你们需要:

wl.release();

所有这些信息都来自http://developer.android.com/fer/android/os/PowerManager.html> rel=“nofollow”PowerManager。

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