在运行 Android 10 的小米设备上，EditText TextInput 中的电子邮件崩溃

Question

最近我在 google play 控制台中遇到了崩溃。

java.lang.NullPointerException:  
  at android.widget.Editor$SelectionModifierCursorController.access$300 (Editor.java:6696) 
  at android.widget.Editor.getEmailPopupWindow (Editor.java:1469) 
  at android.widget.Editor.showEmailPopupWindow (Editor.java:1477) 
  at android.widget.Editor.handleEmailPopup (Editor.java:1456) 
  at android.widget.Editor.updateCursorPosition (Editor.java:2099) 
  at android.widget.TextView.getUpdatedHighlightPath (TextView.java:7813) 
  at android.widget.TextView.onDraw (TextView.java:7998) 
  at android.view.View.draw (View.java:21472) 
  at android.view.View.updateDisplayListIfDirty (View.java:20349) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.updateDisplayListIfDirty (View.java:20340) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.updateDisplayListIfDirty (View.java:20340) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at androidx.recyclerview.widget.RecyclerView.drawChild (RecyclerView.java:4820) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.updateDisplayListIfDirty (View.java:20340) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.draw (View.java:21475) 
  at android.view.View.updateDisplayListIfDirty (View.java:20349) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.draw (View.java:21475) 
  at android.view.View.updateDisplayListIfDirty (View.java:20349) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at androidx.constraintlayout.widget.ConstraintLayout.dispatchDraw (ConstraintLayout.java:2023) 
  at android.view.View.updateDisplayListIfDirty (View.java:20340) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at androidx.coordinatorlayout.widget.CoordinatorLayout.drawChild (CoordinatorLayout.java:1246) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.updateDisplayListIfDirty (View.java:20340) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.draw (View.java:21475) 
  at android.view.View.updateDisplayListIfDirty (View.java:20349) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.updateDisplayListIfDirty (View.java:20340) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.updateDisplayListIfDirty (View.java:20340) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.updateDisplayListIfDirty (View.java:20340) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.updateDisplayListIfDirty (View.java:20340) 
  at android.view.View.draw (View.java:21204) 
  at android.view.ViewGroup.drawChild (ViewGroup.java:4412) 
  at android.view.ViewGroup.dispatchDraw (ViewGroup.java:4171) 
  at android.view.View.draw (View.java:21475) 
  at com.android.internal.policy.DecorView.draw (DecorView.java:830) 
  at android.view.View.updateDisplayListIfDirty (View.java:20349) 
  at android.view.ThreadedRenderer.updateViewTreeDisplayList (ThreadedRenderer.java:575) 
  at android.view.ThreadedRenderer.updateRootDisplayList (ThreadedRenderer.java:581) 
  at android.view.ThreadedRenderer.draw (ThreadedRenderer.java:654) 
  at android.view.ViewRootImpl.draw (ViewRootImpl.java:3687) 
  at android.view.ViewRootImpl.performDraw (ViewRootImpl.java:3482) 
  at android.view.ViewRootImpl.performTraversals (ViewRootImpl.java:2819) 
  at android.view.ViewRootImpl.doTraversal (ViewRootImpl.java:1782) 
  at android.view.ViewRootImpl$TraversalRunnable.run (ViewRootImpl.java:7785) 
  at android.view.Choreographer$CallbackRecord.run (Choreographer.java:1031) 
  at android.view.Choreographer.doCallbacks (Choreographer.java:854) 
  at android.view.Choreographer.doFrame (Choreographer.java:789) 
  at android.view.Choreographer$FrameDisplayEventReceiver.run (Choreographer.java:1016) 
  at android.os.Handler.handleCallback (Handler.java:883) 
  at android.os.Handler.dispatchMessage (Handler.java:100) 
  at android.os.Looper.loop (Looper.java:224) 
  at android.app.ActivityThread.main (ActivityThread.java:7520) 
  at java.lang.reflect.Method.invoke (Method.java) 
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:539) 
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:950)

设备：Redmi K20 Pro

安卓版本：10

在android sources找不到这部分代码（嗯，好像是小米改装的）

我在 React-Native 社区找到了same issue。

关于如何解决它的任何想法？

UPD：我在完全原生的应用程序上遇到了这个崩溃，没有任何跨平台框架。

Answer 1

我为原生 android 开发者找到了一个解决方案。我相信你必须在你的 editText 中使用 inputType 作为 'textEmailAddress'，只需将其更改为：

android:inputType="textNoSuggestions|textEmailAddress"

Answer 2

我昨天也遇到了同样的问题。因此，我花了一些时间才发现，如果我在电子邮件输入字段中输入 .（点）然后清除它，之后输入电子邮件不会再使应用程序崩溃。因此，这是另一种解决方法，它不包括插入符号隐藏，并且仍在 Redmi 9 上为我工作。

const [email, setEmail] = useState(".");

useEffect(() => {
  setTimeout(() => {
    setEmail("");
  }, 1);
}, []);

Answer 3

这个crash是操作系统造成的，实际上是小米定制了安卓，10版本的修改导致了这个crash。有一个解决方案，通过true 值传递caretHidden 标志，这个问题就会消失：

<TextInput
  caretHidden={true}
  ...

我们可以写得更好一点：

<TextInput
  caretHidden
  ...