相关疑难解决方法(0)

仅在使用Android 6.0.1的三星手机上才会发生此错误。或7.0：

Fatal Exception: java.lang.NullPointerException
Attempt to invoke virtual method 'void android.widget.Editor$SelectionModifierCursorController.hide()' on a null object reference
	
android.widget.Editor.performLongClick (Editor.java:1139)
	
android.widget.TextView.performLongClick (TextView.java:10945)
	
android.view.View$CheckForLongPress.run (View.java:22568)
	
android.os.Handler.handleCallback (Handler.java:739)
	
android.os.Handler.dispatchMessage (Handler.java:95)
	
android.os.Looper.loop (Looper.java:148)
	
android.app.ActivityThread.main (ActivityThread.java:7325)
	
java.lang.reflect.Method.invoke (Method.java)
	
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:1230)
	
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1120)

寻找一种预防方法。=）

看来这是一个已知问题，但是优先级较低：

问题228485：空对象引用上的SelectionModifierCursorController.hide（）'

这是一个非常奇怪的小米设备的操作系统异常。即使我确实可以从Fabric获取日志，堆栈跟踪也不会引用我的任何代码。

以下是当机详细资料，如rashalytics（Fabric）中所述：

• 21K崩溃

• 小米设备上的所有崩溃

• 在Android OS版本6、7和8上崩溃

崩溃日志：

# OS Version: 8.1.0
# Device: Redmi Note 5 pro
# RAM Free: 30.1%
# Disk Free: 74.2%

#0. Crashed: main
       at android.widget.Editor.touchPositionIsInSelection(Editor.java:1084)
       at android.widget.Editor.performLongClick(Editor.java:1205)
       at android.widget.TextView.performLongClick(TextView.java:10908)
       at android.view.View.performLongClick(View.java:6360)
       at android.view.View$CheckForLongPress.run(View.java:24768)
       at android.os.Handler.handleCallback(Handler.java:790)
       at android.os.Handler.dispatchMessage(Handler.java:99)
       at android.os.Looper.loop(Looper.java:171)
       at android.app.ActivityThread.main(ActivityThread.java:6606)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:518)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:823)

--

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'int android.widget.Editor$SelectionModifierCursorController.getMinTouchOffset()' on a null object reference
       at android.widget.Editor.touchPositionIsInSelection(Editor.java:1084)
       at android.widget.Editor.performLongClick(Editor.java:1205)
       at android.widget.TextView.performLongClick(TextView.java:10908)
       at android.view.View.performLongClick(View.java:6360)
       at android.view.View$CheckForLongPress.run(View.java:24768)
       at android.os.Handler.handleCallback(Handler.java:790) …

java.lang.NullPointerException: 
  at android.widget.Editor.updateFloatingToolbarVisibility(Editor.java:1541)
  at android.widget.Editor.onTouchEvent(Editor.java:1491)
  at android.widget.TextView.onTouchEvent(TextView.java:10025)
  at android.view.View.dispatchTouchEvent(View.java:10723)
  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2865)
  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2550)
  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2865)
  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2550)
  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2865)
  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2550)
  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2865)
  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2550)
  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2865)
  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2550)
  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2865)
  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2550)
  at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:559)
  at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1870)
  at android.app.Activity.dispatchTouchEvent(Activity.java:3236)
  at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:521)
  at android.view.View.dispatchPointerEvent(View.java:10952)
  at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:5117)
  at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4969)
  at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4500)
  at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4553)
  at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4519)
  at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4652)
  at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4527)
  at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4709)
  at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4500)
  at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4553)
  at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4519)
  at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4527)
  at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4500)
  at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:7007)
  at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6936)
  at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6897)
  at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:7117)
  at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
  at …