我在mainservice.java中编写了此代码,该代码使用starterforeground方法在前景中调用。我想在每10秒钟内发出吐司消息,但行不通。我该如何修复?
public void Alarm(){
Intent intent = new Intent("AlarmService");
PendingIntent sender = PendingIntent.getBroadcast(getApplicationContext(), 0, intent, 0);
long firstTime = SystemClock.elapsedRealtime() + 10 * 1000;
AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
if(Build.VERSION.SDK_INT < Build.VERSION_CODES.M){
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
am.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime, sender) ;
} else {
am.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime, sender);
}
} else {
am.setExactAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime, sender);
}
}
BroadcastReceiver alarmReceiver;
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
alarmReceiver = new BroadcastReceiver(){
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
count++;
Toast.makeText(getApplicationContext(),count+"times",Toast.LENGTH_LONG);
Alarm();
}
};
registerReceiver(alarmReceiver, new IntentFilter("AlarmService"));
}
请看一下https://developer.android.com/topic/libraries/architecture/workmanager执行背景任务