加完動畫效果運行程序交換圖片時崩潰啦
?java.lang.NullPointerException
??????????? at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2488)
??????????? at android.view.View.getDisplayList(View.java:10436)
??????????? at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:2597)
??????????? at android.view.View.getDisplayList(View.java:10401)
??????????? at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:2597)
??????????? at android.view.View.getDisplayList(View.java:10401)
??????????? at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:2597)
??????????? at android.view.View.getDisplayList(View.java:10401)
??????????? at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:2597)
??????????? at android.view.View.getDisplayList(View.java:10401)
??????????? at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:2597)
??????????? at android.view.View.getDisplayList(View.java:10401)
??????????? at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:2597)
??????????? at android.view.View.getDisplayList(View.java:10401)
??????????? at android.view.ViewGroup.dispatchGetDisplayList(ViewGroup.java:2597)
??????????? at android.view.View.getDisplayList(View.java:10401)
??????????? at android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:842)
??????????? at android.view.ViewRootImpl.draw(ViewRootImpl.java:1910)
??????????? at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1634)
??????????? at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2445)
??????????? at android.os.Handler.dispatchMessage(Handler.java:99)
??????????? at android.os.Looper.loop(Looper.java:137)
??????????? at android.app.ActivityThread.main(ActivityThread.java:4463)
??????????? at java.lang.reflect.Method.invokeNative(Native Method)
??????????? at java.lang.reflect.Method.invoke(Method.java:511)
??????????? at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:762)
??????????? at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:529)
??????????? at dalvik.system.NativeStart.main(Native Method)
