android - 即使在 Android 中调用 onDestroy 方法后服务也不会停止

Question

我还是 android 的新手。我使用 stopService 调用 onDestroy 方法。 onDestroy 方法被调用，因为我可以看到 toast 消息。但是用于发送位置更新的无限循环一直在运行。有什么我需要改变的吗？

public class myservice extends IntentService {
    LocationManager locationManager ;
    public myservice() {
        super(myservice.class.getName());
    }
    @Override
    protected void onHandleIntent(Intent intent) {
        String numb=intent.getStringExtra("num");
        for (;;) {
            send(numb);
        }
    }

    public IBinder onBind(Intent intent) {
        return null;
    }

    public void send(String numb) {
        locationManager = (LocationManager)this
                .getSystemService(Context.LOCATION_SERVICE);
        if (ContextCompat.checkSelfPermission( this, android.Manifest.permission.ACCESS_COARSE_LOCATION ) == PackageManager.PERMISSION_GRANTED ) {}
        Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        Geocoder geocoder;
        geocoder = new Geocoder(this, Locale.getDefault());
        try {
            Thread.sleep(3000);
            List<Address> addresses = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
            Toast toast1 = Toast.makeText(this, "message sent", Toast.LENGTH_SHORT);
            toast1.setText(numb.toString());
            toast1.show();
            SmsManager smsManager = SmsManager.getDefault();
            smsManager.sendTextMessage(numb, null, "current postition is" + addresses.get(0).getAddressLine(0) + "," + addresses.get(0).getAddressLine(1) + "," + addresses.get(0).getAddressLine(2), null, null);
            Toast.makeText(getApplicationContext(), "SMS sent.", Toast.LENGTH_LONG).show();
        } catch (Exception e) {
            Toast.makeText(getApplicationContext(), "SMS faild, please try again.", Toast.LENGTH_LONG).show();
            e.printStackTrace();
        }
    }

    @Override
    public void onDestroy() {
        Toast.makeText(getApplicationContext(), "DESTROY2", Toast.LENGTH_LONG).show();
        super.stopSelf();
        super.onDestroy();
    }
}

Answer 1

您不会自己调用 onDestroy()。永远不要自己调用生命周期方法。 Android 会在服务停止时调用它们。

子类化 IntentService 并不是管理正在进行的工作的最佳方式。您最好自己管理一个线程并管理传递给该服务的启动和停止命令。这可不是一件容易的事。

http://developer.android.com/guide/components/services.html