问题描述
我想显示特定时间的本地通知。这样我就可以使用警报管理器来设置特定时间的待定意图。但是在我的情况下,如果应用程序被用户杀死,则不会调用广播/服务。
检查下面的代码,帮助我解决为什么在应用程序被终止后仍未收到通知的情况。
public class MainActivity extends AppCompatActivity {
@RequiresApi(api = Build.VERSION_CODES.M)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent notifyIntent = new Intent(this,MyReceiver.class);
PendingIntent pendingIntent = PendingIntent.getbroadcast
(MainActivity.this,1,notifyIntent,PendingIntent.FLAG_UPDATE_CURRENT);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.setExactAndAllowWhileIdle(AlarmManager.RTC_WAKEUP,System.currentTimeMillis()+30000,pendingIntent);
}
}
public class MyReceiver extends broadcastReceiver {
public MyReceiver() {
}
@Override
public void onReceive(Context context,Intent intent) {
Intent intent1 = new Intent(context,MyNewIntentService.class);
context.startService(intent1);
}
}
public class MyNewIntentService extends Service {
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public int onStartCommand(Intent intent,int flags,int startId) {
super.onStartCommand(intent,flags,startId);
CommonUtil.showNotification(getApplicationContext());
return START_STICKY;
}
}
AndroidManifest.xml
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<receiver
android:name=".MyReceiver"
android:enabled="true"
android:exported="false"
/>
<service
android:name=".MyNewIntentService"
android:exported="false"
/>
解决方法
您可以在此处查看带有广播接收器的警报的工作示例。