Android - 在SwipeRefreshLayout加载时单击RecyclerView时崩溃

Question

I have a RecyclerView inside a SwipeRefreshLayout , when I reload my page , when SwipeRefreshLayout is loading, I click on the item on the RecyclerView and it crashes.

04-21 13:14:49.605 25586-25586/? E/AndroidRuntime: FATAL EXCEPTION: main
                                               Process: com.boxopen.funstack, PID: 25586
                                               java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
                                                   at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:255)
                                                   at java.util.ArrayList.get(ArrayList.java:308)
                                                   at com.boxopen.funstack.adapter.RecycleBookAdapter$BookViewHolder.onClickLike(RecycleBookAdapter.java:339)
                                                   at com.boxopen.funstack.adapter.RecycleBookAdapter$BookViewHolder.access$100(RecycleBookAdapter.java:64)
                                                   at com.boxopen.funstack.adapter.RecycleBookAdapter$BookViewHolder$2.onDoubleClick(RecycleBookAdapter.java:122)
                                                   at com.boxopen.funstack.listener.DoubleClickListener.onClick(DoubleClickListener.java:36)
                                                   at android.view.View.performClick(View.java:4478)
                                                   at android.view.View$PerformClick.run(View.java:18698)
                                                   at android.os.Handler.handleCallback(Handler.java:733)
                                                   at android.os.Handler.dispatchMessage(Handler.java:95)
                                                   at android.os.Looper.loop(Looper.java:149)
                                                   at android.app.ActivityThread.main(ActivityThread.java:5268)
                                                   at java.lang.reflect.Method.invokeNative(Native Method)
                                                   at java.lang.reflect.Method.invoke(Method.java:515)
                                                   at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
                                                   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:609)
                                                   at dalvik.system.NativeStart.main(Native Method)

04-21 13:14:49.675 182-1124/? E/IMGSRV: :0: PVRDRMOpen: TP3, ret = 57

Answer 1

From what i understand by your question and log is basically you are clearing the arraylist in onRefresh() but not notifying the adapter that the list has been cleared.

Please call notifyDataSetChanged() after clearing arraylist

Answer 2

Seems like you have cleared your list upon refresh, but the items are still in your recyclerview. You should notify your adapter that the list is empty now. In your current situation, starting to scroll will probably cause the application to crash as well?!

Answer 3

你应该把条件用于检查（例如，数组，ArrayList ...你使用的）数据的大小