Android.support.v7.widget.RecyclerView$ViewHolder.mItemViewType' on a null..空指针问题,费劲心思才找到报空指针的原因: 代码是这样的,有多种布局类型 @Override public int getItemViewType(int position) { BmobIMMessage message = msgs.get(position); if(message.getMsgType().equals(BmobIMMes…
because you have not set LinearLayoutManager to RecyclerView. for example: mRecyclerView = (RecyclerView) findViewById(R.id.recyclerView); LinearLayoutManager layoutManager = new LinearLayoutManager(context); mRecyclerView.setLayoutManager(layoutMana…
问题症状: Android Studio 1.2 (Build 141.1890965) 新建工程,自动build完成后,Layout Editor无法预览Layout文件,报错内容: Rendering Problems The following classes could not be found:- android.support.v7.internal.widget.ActionBarOverlayLayout (Fix Build Path, Create Class) 解决办法,来…
转载至----http://my.oschina.net/u/2425146/blog/546649?fromerr=aDYrFDVx.仅作个人收藏使用,有转载的朋友请连续原作者,谢谢 刚刚进入studio 的小伙伴们遇到很多问题吧,这个是我曾经遇到的问题,希望能帮助大家,如果觉的有帮助您记得给个赞哦 Rendering Problems The following classes could not be found: - android.support.v7.internal.app.Win…
ava.lang.RuntimeException: Unable to start activity ComponentInfo{com.czr.ianpu/com.czr.ianpu.MainActivity}: android.view.InflateException: Binary XML file line #9: Error inflating class android.support.design.widget.CoordinatorLayout at android.app.…
严重性 代码 说明 项目 文件 行 禁止显示状态 错误 Exception while loading assemblies: System.IO.FileNotFoundException: Could not load assembly 'Xamarin.Android.Support.v7.AppCompat, Version=1.0.0.0, Culture=neutral, PublicKeyToken='. Perhaps it doesn't exist in the Mono f…