我现在做的一个程序有下载功能，下载是在service中去做的，为了跟Activity进行交互，我把service放到Application中：
public class FlyThemeApplication extends Application {
public static final String TAG_LOG = "FlyThemeApplication";
public FlyThemeDownloadService mDownloadService;
@Override
public void onCreate() {
super.onCreate();
Log.i(TAG_LOG, "FlyThemeApplication onCreate");
Intent startServiceIntent = new Intent();
startServiceIntent.setClass(this, FlyThemeDownloadService.class);
startService(startServiceIntent);
Log.i(TAG_LOG, "service.obj=" + mDownloadService);
}
然后在Service的onCreate方法中：mFlyThemApplication = (FlyThemeApplication) this.getApplication();
mFlyThemApplication.mDownloadService = this;
之后所有地方都是通过拿到Application，然后调用service中的方法：
mFlyThemeApplication.mDownloadService.startDownload(mFlyTheme);
请问这样做可行么？
