Android应用程序在android.view.ViewGroup.dispatchDraw中不断崩溃

Question

Crashlytics每天都会在崩溃时发送许多崩溃日志，但我根本不知道如何找到漏洞。 关于我应该从哪里开始调查的任何建议？

Fatal Exception: java.lang.NullPointerException
       at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2488)
       at android.view.View.getDisplayList(View.java:10433)
       at android.view.ViewGroup.drawChild(ViewGroup.java:2850)
       at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
       at android.view.View.getDisplayList(View.java:10433)
       at android.view.ViewGroup.drawChild(ViewGroup.java:2850)
       at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
       at android.view.View.getDisplayList(View.java:10433)
       at android.view.ViewGroup.drawChild(ViewGroup.java:2850)
       at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
       at android.view.View.draw(View.java:10997)
       at android.view.View.getDisplayList(View.java:10435)
       at android.view.ViewGroup.drawChild(ViewGroup.java:2850)
       at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
       at android.view.View.getDisplayList(View.java:10433)
       at android.view.ViewGroup.drawChild(ViewGroup.java:2850)
       at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
       at android.view.View.getDisplayList(View.java:10433)
       at android.view.ViewGroup.drawChild(ViewGroup.java:2850)
       at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
       at android.view.View.draw(View.java:10997)
       at android.widget.FrameLayout.draw(FrameLayout.java:450)
       at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2126)
       at android.view.View.getDisplayList(View.java:10435)
       at android.view.HardwareRenderer$GlRenderer.draw(HardwareRenderer.java:899)
       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:4484)
       at java.lang.reflect.Method.invokeNative(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:511)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
       at dalvik.system.NativeStart.main(NativeStart.java)