Android 8.0奥利奥在聚焦 TextInputEditText 上崩溃

在把我们的一些设备升级到 android 8.0之后，当我们把注意力集中在 TextInputLayout内部的一个 TextInputEditText字段上时，这个应用程序就崩溃了，崩溃的原因是 Exception:

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'void
android.view.View.getBoundsOnScreen(android.graphics.Rect)' on a null object reference
at android.app.assist.AssistStructure$WindowNode.(AssistStructure.java)
at android.app.assist.AssistStructure.(AssistStructure.java)
at android.app.ActivityThread.handleRequestAssistContextExtras(ActivityThread.java:3035)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1807)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)

当我们去机器人 设置-> 系统-> 语言和输入-> 高级-> 自动填充服务-> 无，然后集中在 TextInputEditText / TextInputLayout不再崩溃。

我们如何防止崩溃的发生，而不必禁用新的8.0自动填充服务的设备？

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小开

Add below mentioned attribute in your EditText:

android:importantForAutofill="noExcludeDescendants"

小开

I used the v26/themes.xml to override the EditText style autofill only for Oreo 8.0.0:

<style name="EditTextStyle" parent="Widget.AppCompat.EditText">
<item name="android:importantForAutofill">noExcludeDescendants</item>
</style>

Note that I had to apply the style inline for each EditText in my layout xml for it to take effect. I tried to apply this change globally in my app theme but it didn't work for some reason.

// HAD TO DO THIS IN LAYOUT XML FOR EACH EDIT TEXT
<EditText
style="@style/EditTextStyle"
... />




// THIS DIDN'T TAKE EFFECT IN THEMES XML (HAS BEEN ADDED TO MANIFEST)
<style name="APP_THEME" parent="@style/Theme.AppCompat.Light">
<item name="android:editTextStyle">@style/EditTextStyle</item>
<item name="editTextStyle">@style/EditTextStyle</item>
</style>
小开

Luke Simpson almost make it right, just should use "styles.xml" instead of "themes.xml".

I created a new style file with version qualifier, aiming to v26, to make it clearer.
Just copy and paste your AppTheme for the v26/styles.xml and add editTextStyle items the EditTextStyle style.

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
...
<item name="android:editTextStyle">@style/App_EditTextStyle</item>
<item name="editTextStyle">@style/App_EditTextStyle</item>
</style>


<style name="App_EditTextStyle" parent="@android:style/Widget.EditText">
<item name="android:importantForAutofill">noExcludeDescendants</item>
</style>

In this way you make this changes for all your EditTexts without needing to change your layout files.

小开

You can set any value for importantForAutofill with a style or in the XML it's fix for NPE when you focus the EditText but it's not fix if your long press the EditText and you click on AutoFill. I found a Bug Report about this bug here, please add a star and share your observations in the bug report also.

Thx.

小开
最佳答案

I ran into this too. It turns out the issue was caused by setting the hint text on the EditText nested inside the TextInputLayout.

I did some digging and found this nugget in the 26.0.0 Beta 2 release notes. Android Support Release Notes June 2017

TextInputLayout must set hints on onProvideAutofillStructure()

That led me to try setting the hint on the TextInputLayout instead of the nested EditText.

This resolved the crashing issue for me. Example:

<android.support.design.widget.TextInputLayout
android:id="@+id/textInputLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Some Hint Text"
android.support.design:hintAnimationEnabled="true"
android.support.design:hintEnabled="true"
android.support.design:layout_marginTop="16dp">


<android.support.design.widget.TextInputEditText
android:id="@+id/editText"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>


</android.support.design.widget.TextInputLayout>

I posted this as an answer here as I mixed up bookmarks. Sorry for posting the same answer twice.

小开

@Luke Simpson is right. You can use it in themes.XML like:-

<item name="editTextStyle">@style/AppEditTextStyle</item>


and then put
<style name="AppEditTextStyle" parent="Widget.AppCompat.EditText">
<item name="android:importantForAutofill">auto</item>
</style>

in V26/app_styles.xml

But, I had to put empty tag also in app_styles.xml in the default folder. Otherwise, all the properties of Edit text were getting overriding by this and my edit text was not working properly. And when you put importantForAutoFill property for v26 and you want autofill to work in 8.1, you can simply put

<style name="AppEditTextStyle" parent="Widget.AppCompat.EditText">
<item name="android:importantForAutofill">auto</item>
</style>

So, autofill property works in 8.1. It will be disabled just for 8.0 as the crash is hapenning in 8.0 and it has already been fixed in 8.1.

小开

If anyone still wants "hint" in "TextInputEditText" make app:hintEnabled="false" in TextInputLayout

<com.google.android.material.textfield.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:hintEnabled="false"
app:passwordToggleEnabled="true">


<com.google.android.material.textfield.TextInputEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="password"
android:inputType="textPassword" />


</com.google.android.material.textfield.TextInputLayout>
小开

I have also facing this issue and finally we got the reason of crash on android 8.0 and android 8.1.

first reason(important clue): empty hint(android:hint="") in xml leads to crash in oreo device.Please remove this empty hint in editText in whole project search.

second reason(same as above explain): make sure your editText hint should be show inside TextInputLayout if you have used TextInputLayout otherwise you can use hint inside editText.

Hope this helpe you !!

Thank you


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