问题

最近我在我的安卓应用中开始使用 TextInputLayout。之后，奇怪的 NullPointerException 错误开始出现。这些错误只在搭载 Android 10 的 小米（Xiaomi） 设备上发生。

致命异常: java.lang.NullPointerException
尝试调用空对象引用上的直接方法 'void android.widget.Editor$SelectionModifierCursorController.initDrawables()'
android.widget.Editor$SelectionModifierCursorController.access$300

没有办法重现这个错误（我没有小米设备）。在搜索互联网时，我意识到这个错误发生在尝试在 TextInputLayout 字段中输入电子邮件时。

互联网上有React Native的解决方案：https://github.com/facebook/react-native/issues/27204

不幸的是，我还没有找到Java的解决方案。

来自Crashlytics的截图：

完整报告：

android.widget.Editor$SelectionModifierCursorController.access$300 (Editor.java:6709)
android.widget.Editor.getEmailPopupWindow (Editor.java:1471)
android.widget.Editor.showEmailPopupWindow (Editor.java:1479)
android.widget.Editor.handleEmailPopup (Editor.java:1458)
android.widget.Editor.updateCursorPosition (Editor.java:2101)
android.widget.TextView.getUpdatedHighlightPath (TextView.java:7823)
android.widget.TextView.onDraw (TextView.java:8008)
android.view.View.draw (View.java:21594)
android.view.View.updateDisplayListIfDirty (View.java:20437)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.View.draw (View.java:21312)
android.view.ViewGroup.drawChild (ViewGroup.java:4472)
android.view.ViewGroup.dispatchDraw (ViewGroup.java:4231)
android.view.View.draw (View.java:21601)
com.google.android.material.textfield.TextInputLayout.draw (TextInputLayout.java:3064)
android.view.View.updateDisplayListIfDirty (View.java:20437)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ThreadedRenderer.updateViewTreeDisplayList (ThreadedRenderer.java:575)
android.view.ThreadedRenderer.updateRootDisplayList (ThreadedRenderer.java:581)
android.view.ThreadedRenderer.draw (ThreadedRenderer.java:654)
android.view.ViewRootImpl.draw (ViewRootImpl.java:3844)
android.view.ViewRootImpl.performDraw (ViewRootImpl.java:3635)
android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:2955)
android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:1865)
android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:8029)
android.view.Choreographer$CallbackRecord.run (Choreographer.java:969)
android.view.Choreographer.doCallbacks (Choreographer.java:793)
android.view.Choreographer.doFrame (Choreographer.java:728)
android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:954)
android.os.Handler.handleCallback (Handler.java:883)
android.os.Handler.dispatchMessage (Handler.java:100)
android.os.Looper.loop (Looper.java:224)
android.app.ActivityThread.main (ActivityThread.java:7509)
java.lang.reflect.Method.invoke (Method.java)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:539)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:995)

英文:

I recently started using TextInputLayout in my android app. After that, strange NullPointerException errors started to appear. These errors only occur on Xiaomi devices with Androind 10.

Fatal Exception: java.lang.NullPointerException
Attempt to invoke direct method &#39;void android.widget.Editor$SelectionModifierCursorController.initDrawables()&#39; on a null object reference
android.widget.Editor$SelectionModifierCursorController.access$300

There is no way to reproduce the error (I do not have a Xiaomi device). Searching the Internet realized that this error occurs when trying to enter email in the TextInputLayout field.

There is a solution for React Native on the internet: https://github.com/facebook/react-native/issues/27204

Unfortunately, I have not been able to find a solution for Java.

Screenshot from Crashlytics:

Full report:

android.widget.Editor$SelectionModifierCursorController.access$300 (Editor.java:6709)
android.widget.Editor.getEmailPopupWindow (Editor.java:1471)
android.widget.Editor.showEmailPopupWindow (Editor.java:1479)
android.widget.Editor.handleEmailPopup (Editor.java:1458)
android.widget.Editor.updateCursorPosition (Editor.java:2101)
android.widget.TextView.getUpdatedHighlightPath (TextView.java:7823)
android.widget.TextView.onDraw (TextView.java:8008)
android.view.View.draw (View.java:21594)
android.view.View.updateDisplayListIfDirty (View.java:20437)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.View.draw (View.java:21312)
android.view.ViewGroup.drawChild (ViewGroup.java:4472)
android.view.ViewGroup.dispatchDraw (ViewGroup.java:4231)
android.view.View.draw (View.java:21601)
com.google.android.material.textfield.TextInputLayout.draw (TextInputLayout.java:3064)
android.view.View.updateDisplayListIfDirty (View.java:20437)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ViewGroup.recreateChildDisplayList (ViewGroup.java:4456)
android.view.ViewGroup.dispatchGetDisplayList (ViewGroup.java:4429)
android.view.View.updateDisplayListIfDirty (View.java:20388)
android.view.ThreadedRenderer.updateViewTreeDisplayList (ThreadedRenderer.java:575)
android.view.ThreadedRenderer.updateRootDisplayList (ThreadedRenderer.java:581)
android.view.ThreadedRenderer.draw (ThreadedRenderer.java:654)
android.view.ViewRootImpl.draw (ViewRootImpl.java:3844)
android.view.ViewRootImpl.performDraw (ViewRootImpl.java:3635)
android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:2955)
android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:1865)
android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:8029)
android.view.Choreographer$CallbackRecord.run (Choreographer.java:969)
android.view.Choreographer.doCallbacks (Choreographer.java:793)
android.view.Choreographer.doFrame (Choreographer.java:728)
android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:954)
android.os.Handler.handleCallback (Handler.java:883)
android.os.Handler.dispatchMessage (Handler.java:100)
android.os.Looper.loop (Looper.java:224)
android.app.ActivityThread.main (ActivityThread.java:7509)
java.lang.reflect.Method.invoke (Method.java)
com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:539)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:995)

答案1

得分: 1

以下是我为了解决崩溃问题所做的操作。它将在编辑电子邮件地址时禁用光标，但不会导致崩溃。

if (android.os.Build.MANUFACTURER.equals("Xiaomi", ignoreCase = true) &&
    android.os.Build.VERSION.SDK_INT == android.os.Build.VERSION_CODES.Q) {
    editText.isCursorVisible = false;
}

英文:

This is what I did to fix the crash. It will disable the cursor when editing an email address, but it will not crash.

if (android.os.Build.MANUFACTURER.equals(&quot;Xiaomi&quot;, ignoreCase = true) &amp;&amp;
    android.os.Build.VERSION.SDK_INT == android.os.Build.VERSION_CODES.Q) {
    editText.isCursorVisible = false
}

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空指针异常：TextInputLayout 在搭载安卓10的小米设备上发生。

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