自动填充框架更新8.1导致EditText崩溃

Question

我将我的手机从8.0更新到了8.1，现在当我尝试点击应用程序中的任何EditText或com.rengwuxian.materialedittext.MaterialEditText时，出现了崩溃（该应用程序构建于API 25级）。

FATAL EXCEPTION: main                                                                              
java.lang.NullPointerException: activityToken
at android.os.Parcel.readException(Parcel.java:2010)
at android.os.Parcel.readException(Parcel.java:1950)
at android.view.autofill.IAutoFillManager$Stub$Proxy.startSession(IAutoFillManager.java:381)
at android.view.autofill.AutofillManager.startSessionLocked(AutofillManager.java:993)
at android.view.autofill.AutofillManager.notifyViewEntered(AutofillManager.java:595)
at android.view.autofill.AutofillManager.notifyViewEntered(AutofillManager.java:566)
at android.view.View.notifyEnterOrExitForAutoFillIfNeeded(View.java:6980)
at android.view.View.onFocusChanged(View.java:6966)
at android.widget.TextView.onFocusChanged(TextView.java:9606)
at android.view.View.handleFocusGainInternal(View.java:6631)
at android.view.View.requestFocusNoSearch(View.java:10868)
at android.view.View.requestFocus(View.java:10847)
at android.view.View.requestFocus(View.java:10814)
at android.view.View.requestFocus(View.java:10756)
at android.view.View.onTouchEvent(View.java:13018)
at android.widget.TextView.onTouchEvent(TextView.java:9665)
at com.rengwuxian.materialedittext.MaterialEditText.onTouchEvent(MaterialEditText.java:1501)
at android.view.View.dispatchTouchEvent(View.java:11776)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2968)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2657)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:448)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1829)
at android.app.Activity.dispatchTouchEvent(Activity.java:3307)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:71)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:410)
at android.view.View.dispatchPointerEvent(View.java:12015)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4795)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4609)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4166)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4293)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4174)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4350)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4200)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4166)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4174)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4147)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6661)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6635)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6596)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6764)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:186)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:325)
at android.os.Looper.loop(Looper.java:142)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

结构如下：

 <com.rengwuxian.materialedittext.MaterialEditText
                    android:id="@+id/usernameET"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginBottom="@dimen/padding_xlarge"
                    android:layout_marginTop="@dimen/padding_large"
                    android:enabled="@{!loading}"
                    android:hint="@string/username"
                    android:inputType="text"
                    android:lines="1"
                    android:maxLength="50"
                    android:maxLines="1"
                    android:singleLine="true"
                    android:textSize="@dimen/text_normal"
                    app:met_accentTypeface="fonts/averta_bold.otf"
                    app:met_floatingLabel="highlight"
                    app:met_floatingLabelText="@string/username"
                    app:met_primaryColor="@color/text_dark"
                    app:met_textColor="@color/text_blue"
                    app:met_typeface="fonts/averta_regular.otf" />

请问您能否指导我为什么会发生这种情况以及如何解决它呢？

提前感谢您！！！

- Dimitris Makris

Answer 1

我遇到了类似的问题。在 Webview 中点击 EditText 时出现相同的错误。

在我的情况下，问题是在 attachBaseContext 方法中使用了错误的 Context。

旧代码：

override fun attachBaseContext(newBase: Context?) {
   super.attachBaseContext(applicationContext.createConfigurationContext(...))
}

修复后的代码：

override fun attachBaseContext(newBase: Context?) {
    super.attachBaseContext(newBase.createConfigurationContext(...))
}

使用Autofill框架不再出现错误。我建议检查是否犯了与错误使用Context相关的类似错误。

- cycki

---

不错！这解决了我在Android 8.1 webview中自动填充崩溃的问题。但是我还是不太明白为什么会出现这种情况，而且只在这个特定版本的Android上发生。你有任何想法吗？请帮我解答一下。 - JorgeMuci

太棒了！我自己永远找不到罪魁祸首。崩溃发生的地方与问题开始的地方无关。你为我节省了很多时间！ - Mike Keskinov

Answer 2

在我看来，这似乎是一种纯粹的回归错误。我正在采取最务实的方法，在Activity.onCreate中执行此操作：

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
  getWindow().getDecorView().setImportantForAutofill(
      View.IMPORTANT_FOR_AUTOFILL_NO_EXCLUDE_DESCENDANTS);
}

- felarca

---

你也可以在XML中添加android:importantForAutofill="no"，并抑制Lint警告以应用更干净的修复 :) - Talha

Answer 3

我花了时间解决这个错误：

Fatal Exception: java.lang.NullPointerException: activityToken
       at android.os.Parcel.readException + 2010(Parcel.java:2010)
       at android.os.Parcel.readException + 1950(Parcel.java:1950)
       at android.view.autofill.IAutoFillManager$Stub$Proxy.startSession + 397(IAutoFillManager.java:397)

解决方案：

android:importantForAutofill="no" in XML file in Edit Text.

- Antonio Karanfiloski