尝试在空对象引用上调用虚方法’void android.widget.Editor $SelectionModifierCursorController.hide()’

这个错误似乎只发生在使用 Android 6.0.1的三星手机上.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)

寻找一种方法来防止它. =)

这似乎是一个已知问题,但优先级较低：

Issue 228485: SelectionModifierCursorController.hide()’ on a null object reference

解决方法

对我来说,最简单的解决方案是在EditText中覆盖此方法.希望三星有一天会修复它.

override fun performlongClick(): Boolean {
    try {
        return super.performlongClick()
    } catch (e: NullPointerException) {
        return true
    }
}

override fun performlongClick(x: Float,y: Float): Boolean {
    try {
        return super.performlongClick(x,y)
    } catch (e: NullPointerException) {
        return true
    }
}