问如何实现内容分发？

@Override
protected void onPostExecute(Void result){
    if(isAdded()){
        getResources().getString(R.string.app_name);
    }
}

getActivity().onBackPressed();

public class MyApplication extends Application {
    public static Context GLOBAL_APP_CONTEXT;

    @Override
    public void onCreate() {
        super.onCreate();
        GLOBAL_APP_CONTEXT = this;
    }
}