我需要帮助,在我AsyncTask
调用我MainActivity
的和更新适配器时,LogCat 给NullPointerException
我onPostExecture
检查了这个列表,它不为空,有一些值
异步任务.java
protected void onPostExecute(List<MoviesCategory> result){
super.onPostExecute(result);
//Here i have Error, i cheked result it's not null.
//On AsyncTask i have Constructor when i get Activity.
activity.mMoviesAdapter.addCategory(result);
}
适配器.java
List<MoviesCategory> mListMovies;
public void addCategory(List<MoviesCategory> list){
mListMovies.addAll(list);
notifyDataSetChanged();
}
我究竟做错了什么,
更新
更新
FATAL EXCEPTION: main
java.lang.NullPointerException
at uz.afishamedia.Adapter.MoviesAdapter.addCategory(MoviesAdapter.java:49)
at uz.afishamedia.Utils.LoadMovies.onPostExecute(LoadMovies.java:74)
at uz.afishamedia.Utils.LoadMovies.onPostExecute(LoadMovies.java:1)
at android.os.AsyncTask.finish(AsyncTask.java:631)
at android.os.AsyncTask.access$600(AsyncTask.java:177)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:644)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5191)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:795)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:562)
at dalvik.system.NativeStart.main(Native Method)