Android 闹钟，服务未被调用

Question

在我的 Activity 中:

Intent myIntent = new Intent(this, MyAlarmService.class);
pendingIntent = PendingIntent.getService(this, 0, myIntent, 0);

AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);

Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.add(Calendar.SECOND, 10);
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);

Toast.makeText(this, "Start Alarm", Toast.LENGTH_LONG).show();

要调用的类:

public class MyAlarmService extends Service {

    @Override
    public void onCreate() {
        // TODO Auto-generated method stub
        Toast.makeText(this, "MyAlarmService.onCreate()", Toast.LENGTH_LONG).show();
    }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        Toast.makeText(this, "MyAlarmService.onBind()", Toast.LENGTH_LONG).show();
        return null;
    }

    @Override
    public void onStart(Intent intent, int startId) {
        // TODO Auto-generated method stub
        super.onStart(intent, startId);
        Toast.makeText(this, "MyAlarmService.onStart()", Toast.LENGTH_LONG).show();
    }
}

使用此代码，MyAlarmService 未被调用。为什么？此代码已从示例中删除，因此经过测试可以正常运行。我会忘记什么吗？

Answer 1

我想，你的服务已经正常启动了。 Toast在服务中出现问题。

尝试将 Toast.makeText() 更改为 Log.d() 并查看记录是否出现在您的 Logcat 中。

服务中的 Toast 问题已得到解释 here .