Question

我通过crashlytics获得了这个堆栈跟踪。我不知道问题出在哪里。

是否有任何替代的StaggeredGridLayoutManager可用于获取类似布局的列表视图。

Fatal Exception: java.lang.ArrayIndexOutOfBoundsException: start < 0 || end > len. start=-1, end=11, len=11
   at java.util.Arrays.checkStartAndEnd(Arrays.java:1745)
   at java.util.Arrays.fill(Arrays.java:803)
   at android.support.v7.widget.StaggeredGridLayoutManager$LazySpanLookup.invalidateAfter(SourceFile:2404)
   at android.support.v7.widget.StaggeredGridLayoutManager.handleUpdate(SourceFile:1373)
   at android.support.v7.widget.StaggeredGridLayoutManager.onItemsRemoved(SourceFile:1327)
   at android.support.v7.widget.RecyclerView$6.dispatchUpdate(SourceFile:725)
   at android.support.v7.widget.RecyclerView$6.onDispatchFirstPass(SourceFile:716)
   at android.support.v7.widget.AdapterHelper.dispatchFirstPassAndUpdateViewHolders(SourceFile:316)
   at android.support.v7.widget.AdapterHelper.dispatchAndUpdateViewHolders(SourceFile:302)
   at android.support.v7.widget.AdapterHelper.applyRemove(SourceFile:182)
   at android.support.v7.widget.AdapterHelper.preProcess(SourceFile:103)
   at android.support.v7.widget.RecyclerView.processAdapterUpdatesAndSetAnimationFlags(SourceFile:2767)
   at android.support.v7.widget.RecyclerView.onMeasure(SourceFile:2538)
   at android.view.View.measure(View.java:16521)
   at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5134)
   at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
   at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
   at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
   at android.view.View.measure(View.java:16521)
   at android.support.v4.view.ViewPager.onMeasure(SourceFile:1489)
   at android.view.View.measure(View.java:16521)
   at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719)
   at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455)
   at android.view.View.measure(View.java:16521)
   at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719)
   at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455)
   at android.view.View.measure(View.java:16521)
   at android.support.v4.widget.DrawerLayout.onMeasure(SourceFile:940)
   at android.view.View.measure(View.java:16521)
   at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5134)
   at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
   at android.support.v7.widget.ContentFrameLayout.onMeasure(SourceFile:135)
   at android.view.View.measure(View.java:16521)
   at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5134)
   at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
   at android.view.View.measure(View.java:16521)
   at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5134)
   at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
   at android.view.View.measure(View.java:16521)
   at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5134)
   at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
   at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
   at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
   at android.view.View.measure(View.java:16521)
   at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5134)
   at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
   at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2331)
   at android.view.View.measure(View.java:16521)
   at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1925)
   at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1117)
   at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1299)
   at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
   at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5739)
   at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
   at android.view.Choreographer.doCallbacks(Choreographer.java:574)
   at android.view.Choreographer.doFrame(Choreographer.java:544)
   at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
   at android.os.Handler.handleCallback(Handler.java:733)
   at android.os.Handler.dispatchMessage(Handler.java:95)
   at android.os.Looper.loop(Looper.java:136)
   at android.app.ActivityThread.main(ActivityThread.java:5380)
   at java.lang.reflect.Method.invokeNative(Method.java)
   at java.lang.reflect.Method.invoke(Method.java:515)
   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:970)
   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:786)
   at dalvik.system.NativeStart.main(NativeStart.java)

这就是我在其中一个适配器

中处理点击侦听器的工作

     @Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
  holder.relative.setClickable(true);

    holder.relative.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            if (itemClickListener != null)
                itemClickListener.onClick(v, position);
            else
                AppConfig.log("itemClickLestener was null");
        }
    });

    holder.relative.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if (itemClickListener != null)
                itemClickListener.onLongClick(v, position);
            return true;
        }
    });
  return view;
  }

Answer 1

看起来你试图调用 getAdapterPosition（），而不计算Recycler View布局（可能由notifyDataSetChanged（）调用触发）。

总是像这样处理它

final int position = getAdapterPosition();
if(positon != RecyclerView.NO_POSITION){
    // you can trust the adapter position
    // do whatever you intend to do with this position
}

文件清楚地说明了以下内容

如果要在ViewHolder点击时访问适配器中的项目，则应使用getAdapterPosition（）。请注意，如果已调用notifyDataSetChanged（）并且尚未计算新布局，则这些方法可能无法计算适配器位置。出于这个原因，您应该小心处理NO_POSITION或从这些方法中得到null结果。

<强>更新

现在你终于发布了一些代码。这里有一些你应该考虑的事情。

不要在onBindViewHolder中传递最终参数。当OnClickListener被触发时，位置不能保证与您认为的相同。这样做

@Override
public void onBindViewHolder(ViewHolder holder, int position) {
    holder.relative.setClickable(true);
    //do other stuff
}

不要在onBindViewHolder方法中分配任何侦听器。随着视图的回收，您最终会将侦听器多次设置为同一视图。而是将其设置在视图持有者类或onCreateViewHolder方法中，如下所示

@Override
public MyViewHolder onCreateViewHolder (ViewGroup parent, int viewType) {
    View myView = LayoutInflater.from(parent.getContext())
                        .inflate(R.layout.my_layout, parent, false);

    //setting listeners on creation
    myView.setOnClickListener(new View.OnClickListener(){
        @Override
        public void onClick(View v) {
            final int position = getAdapterPosition();
            if(position != RecyclerView.NO_POSITION){
                //do whatever you want with the clicked position
            }
        }
    });

   //return the view holder
   return new MyViewHolder(myView);
}

或者在ViewHolder类中

public class MyViewHolder extends RecyclerView.ViewHolder {

     public MyViewHolder(View itemView) {
         super(itemView);

         //setting listeners inside viewHolder class
         itemView.setOnClickListener(new View.OnClickListener(){
             @Override
             public void onClick(View v) {
                final int position = getAdapterPosition();
                if(position != RecyclerView.NO_POSITION){
                    //do whatever you want with the clicked position
                }
             }
          });
        }
   }

修复上述问题可能会解决您的问题。我强烈建议您查看关于RecyclerView的Google Dev Summit 2015视频。这真的很有趣，他们谈论RecyclerView的细节。他们还提到了为什么不在onBinViewHolder中传递最终参数。点击here查看视频中确切的时刻。

Answer 2

大多数情况下，您的绑定视图中将出现此错误，您将使用arraylist的数据。确保您使用了arraylist的位置-1 值。

Recycler View Fatal Exception：java.lang.ArrayIndexOutOfBoundsException

2 个答案: