android studio上传视频到服务器mysql闪退

Question

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.chapter14, PID: 28694
java.lang.ClassCastException: com.google.android.exoplayer2.ui.PlayerView cannot be cast to com.google.android.exoplayer2.ui.StyledPlayerView
at com.example.chapter14.fragment.VideoFragment.onCreateView(VideoFragment.java:57)
at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2963)
at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:518)
at androidx.fragment.app.FragmentStateManager.moveToExpectedState(FragmentStateManager.java:282)
at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:2189)
at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:2100)
at androidx.fragment.app.FragmentManager.execSingleAction(FragmentManager.java:1971)
at androidx.fragment.app.BackStackRecord.commitNow(BackStackRecord.java:305)
at androidx.viewpager2.adapter.FragmentStateAdapter.placeFragmentInViewHolder(FragmentStateAdapter.java:341)
at androidx.viewpager2.adapter.FragmentStateAdapter.onViewAttachedToWindow(FragmentStateAdapter.java:276)
at androidx.viewpager2.adapter.FragmentStateAdapter.onViewAttachedToWindow(FragmentStateAdapter.java:67)
at androidx.recyclerview.widget.RecyclerView.dispatchChildAttached(RecyclerView.java:7867)
at androidx.recyclerview.widget.RecyclerView$5.addView(RecyclerView.java:893)
at androidx.recyclerview.widget.ChildHelper.addView(ChildHelper.java:107)
at androidx.recyclerview.widget.RecyclerView$LayoutManager.addViewInt(RecyclerView.java:8902)
at androidx.recyclerview.widget.RecyclerView$LayoutManager.addView(RecyclerView.java:8860)
at androidx.recyclerview.widget.RecyclerView$LayoutManager.addView(RecyclerView.java:8848)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1645)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1591)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:668)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4309)
at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:4012)
at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4578)
at android.view.View.layout(View.java:22496)
at android.view.ViewGroup.layout(ViewGroup.java:6528)
at androidx.viewpager2.widget.ViewPager2.onLayout(ViewPager2.java:527)
at android.view.View.layout(View.java:22496)
at android.view.ViewGroup.layout(ViewGroup.java:6528)
at androidx.swiperefreshlayout.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:689)
at android.view.View.layout(View.java:22496)
at android.view.ViewGroup.layout(ViewGroup.java:6528)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1103)
at android.view.View.layout(View.java:22496)
at android.view.ViewGroup.layout(ViewGroup.java:6528)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:334)
at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
at android.view.View.layout(View.java:22496)
at android.view.ViewGroup.layout(ViewGroup.java:6528)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1857)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1701)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1610)
at android.view.View.layout(View.java:22496)
at android.view.ViewGroup.layout(ViewGroup.java:6528)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:334)
at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
at android.view.View.layout(View.java:22496)
at android.view.ViewGroup.layout(ViewGroup.java:6528)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1857)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1701)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1610)
at android.view.View.layout(View.java:22496)
at android.view.ViewGroup.layout(ViewGroup.java:6528)
E/AndroidRuntime: at android.widget.FrameLayout.layoutChildren(FrameLayout.java:334)
at android.widget.FrameLayout.onLayout(FrameLayout.java:270)
at com.android.internal.policy.DecorView.onLayout(DecorView.java:1146)
at android.view.View.layout(View.java:22496)
at android.view.ViewGroup.layout(ViewGroup.java:6528)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:3743)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:3207)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:2166)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:8887)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1280)
at android.view.Choreographer.doCallbacks(Choreographer.java:1019)
at android.view.Choreographer.doFrame(Choreographer.java:911)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1248)
at android.os.Handler.handleCallback(Handler.java:900)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:219)
at android.app.ActivityThread.main(ActivityThread.java:8668)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1109)
I/Process: Sending signal. PID: 28694 SIG: 9

Answer 1

望采纳，日志已经给你提示了：

 com.google.android.exoplayer2.ui.PlayerView cannot be cast to com.google.android.exoplayer2.ui.StyledPlayerView

你把PlayerView 转换成了StyledPlayerView