我收到致命异常/空指针异常 我不知道是什么问题以及为什么会发生这种错误
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logcat的
> 03-09 18:18:52.423 3765-3765/com.mosabalzouby.myapplication
> E/AndroidRuntime: FATAL EXCEPTION: main
> java.lang.NullPointerException
> at
> com.mosabalzouby.myapplication.IndianMoviesAdapter.onBindViewHolder(IndianMoviesAdapter.java:38)
> at
> com.mosabalzouby.myapplication.IndianMoviesAdapter.onBindViewHolder(IndianMoviesAdapter.java:16)
> at
> android.support.v7.widget.RecyclerView$Adapter.onBindViewHolder(RecyclerView.java:5217)
> at
> android.support.v7.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:5250)
> at
> android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4487)
> at
> android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4363)
> at
> android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1961)
> at
> android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1370)
> at
> android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1333)
> at
> android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:562)
> at
> android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2900)
> at
> android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3071)
> at android.view.View.layout(View.java:11180)
> at android.view.ViewGroup.layout(ViewGroup.java:4203)
> at android.widget.RelativeLayout.onLayout(RelativeLayout.java:925)
> at android.view.View.layout(View.java:11180)
> at android.view.ViewGroup.layout(ViewGroup.java:4203)
> at
> android.support.design.widget.CoordinatorLayout.layoutChild(CoordinatorLayout.java:1037)
> at
> android.support.design.widget.CoordinatorLayout.onLayoutChild(CoordinatorLayout.java:747)
> at
> android.support.design.widget.ViewOffsetBehavior.onLayoutChild(ViewOffsetBehavior.java:42)
> at
> android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onLayoutChild(AppBarLayout.java:1156)
> at
> android.support.design.widget.CoordinatorLayout.onLayout(CoordinatorLayout.java:760)
> at android.view.View.layout(View.java:11180)
> at android.view.ViewGroup.layout(ViewGroup.java:4203)
> at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
> at android.view.View.layout(View.java:11180)
> at android.view.ViewGroup.layout(ViewGroup.java:4203)
> at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628)
> at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486)
> at android.widget.LinearLayout.onLayout(LinearLayout.java:1399)
> at android.view.View.layout(View.java:11180)
> at android.view.ViewGroup.layout(ViewGroup.java:4203)
> at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
> at android.view.View.layout(View.java:11180)
> at android.view.ViewGroup.layout(ViewGroup.java:4203)
> at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1628)
> at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1486)
> at android.widget.LinearLayout.onLayout(LinearLayout.java:1399)
> at android.view.View.layout(View.java:11180)
> at android.view.ViewGroup.layout(ViewGroup.java:4203)
> at android.widget.FrameLayout.onLayout(FrameLayout.java:431)
> at android.view.View.layout(View.java:11180)
> at android.view.ViewGroup.layout(ViewGroup.java:4203)
> at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1468)
> at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2418)
> at android.os.Handler.dispatchMessage(Handler.java:99)
> at android.os.Looper.loop(Looper.java:137)
> at android.app.ActivityThread.main(ActivityThread.java:4340)
> 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:784)
> at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
> at dalvik.system.NativeStart.main(Native Method)
MainActivity：
List<IndianMovies> movies=new ArrayList<>();
int posters[]={R.mipmap.avengers,R.mipmap.avengers,R.mipmap.avengers,R.mipmap.avengers,R.mipmap.avengers,R.mipmap.avengers};
String moviename[]={"aaaaa","bbbbbb","ccccc","vvvvvv","eeeeeee","wwwwww"};
String movierate[]={"9.9","5.5","2.3","4.4","5.1","6.2"};
String moviestory[]={"aaaaaaaaaaa","aaaaaaaaa","wwwwwwwwwww","eeeee","rrrrrrr","qqqqq"};
for (int i=0;i<posters.length;i++){
IndianMovies movie=
new IndianMovies(moviename[i],movierate[i],moviestory[i],posters[i]);
movies.add(movie);
}
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
IndianMoviesAdapter adapter = new IndianMoviesAdapter(movies);
recyclerView.setAdapter(adapter);
我的适配器：
public class IndianMoviesAdapter extends RecyclerView.Adapter<IndianMoviesAdapter.IndianMovieHolder>{
List<IndianMovies> moviesList;
public IndianMoviesAdapter(List<IndianMovies> moviesList){
this.moviesList=moviesList;
}
@Override
public IndianMovieHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View row = LayoutInflater.from(parent.getContext()).inflate(R.layout.indian_movie_row,parent,false);
IndianMovieHolder holder = new IndianMovieHolder(row);
return holder;
}
@Override
public void onBindViewHolder(IndianMovieHolder holder, int position) {
IndianMovies movie =moviesList.get(position);
holder.movietitle.setText(movie.moviename);
holder.movierat.setText(movie.movierate);
holder.moviesdesc.setText(movie.moviestory);
holder.poster.setImageResource(movie.posterimage);
}
@Override
public int getItemCount() {
return moviesList.size();
}
class IndianMovieHolder extends RecyclerView.ViewHolder{
TextView movietitle,movierat,moviesdesc;
ImageView poster;
public IndianMovieHolder(View itemView) {
super(itemView);
movietitle =(TextView) itemView.findViewById(R.id.movietitleTV);
movietitle =(TextView) itemView.findViewById(R.id.movieratTV);
moviesdesc =(TextView) itemView.findViewById(R.id.moviedescTV);
poster =(ImageView) itemView.findViewById(R.id.movieposteIMG);
}
}
}
如何解决？
答案 0 :(得分：0)
问题在你的模型中是indianMovies我无法添加评论，因为我的回购很低请与我分享你的模特