遇到一个问题，我的 Android 应用程序在尝试启动活动时不断崩溃。我无法重现该问题，这只是从发生此问题的多个设备的日志中获取的。
堆栈跟踪：
2020-03-08 14:58:28.717 5449 5449 I MonoDroid: --- End of managed Java.Lang.NullPointerException stack trace ---
2020-03-08 14:58:28.717 5449 5449 I MonoDroid: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.dispatchCancelPendingInputEvents()' on a null object reference
2020-03-08 14:58:28.717 5449 5449 I MonoDroid: at android.view.ViewGroup.dispatchCancelPendingInputEvents(ViewGroup.java:3893)
2020-03-08 14:58:28.717 5449 5449 I MonoDroid: at android.view.ViewGroup.dispatchCancelPendingInputEvents(ViewGroup.java:3893)
2020-03-08 14:58:28.718 5449 5449 I MonoDroid: at android.view.ViewGroup.dispatchCancelPendingInputEvents(ViewGroup.java:3893)
2020-03-08 14:58:28.718 5449 5449 I MonoDroid: at android.view.ViewGroup.dispatchCancelPendingInputEvents(ViewGroup.java:3893)
2020-03-08 14:58:28.718 5449 5449 I MonoDroid: at android.view.ViewGroup.dispatchCancelPendingInputEvents(ViewGroup.java:3893)
2020-03-08 14:58:28.718 5449 …