android mvvm架构中使用location api的合适位置

public class MyViewModel extends ViewModel {
    private LocationLiveData locationLiveData;

    public MyViewModel() {
        locationLiveData = new LocationLiveData();
    }

    public LiveData<Location> getLocationLiveData() {
        return locationLiveData;
    }
}

public class LocationLiveData extends LiveData<Location> implements LocationListener {
    private LocationManager locationManager;

    @Override
    protected void onActive() {
        super.onActive();
        // 初始化LocationManager
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        // 注册位置监听器
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, this);
    }

    @Override
    protected void onInactive() {
        super.onInactive();
        // 停止位置监听
        locationManager.removeUpdates(this);
    }

    @Override
    public void onLocationChanged(Location location) {
        // 更新位置信息
        setValue(location);
    }

    // 其他LocationListener的回调方法...
}

public class MyActivity extends AppCompatActivity {
    private MyViewModel viewModel;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // 初始化ViewModel
        viewModel = ViewModelProviders.of(this).get(MyViewModel.class);
        // 观察位置信息变化
        viewModel.getLocationLiveData().observe(this, new Observer<Location>() {
            @Override
            public void onChanged(Location location) {
                // 更新UI
                updateUI(location);
            }
        });
    }

    // 更新UI的方法...
}