java.lang.ClassCastException:android.support.v7.widget.ActivityChooserView $ InnerLayout无法转换为android.support.v7.widget.LinearLayoutCompat [英] java.lang.ClassCastException: android.support.v7.widget.ActivityChooserView$InnerLayout cannot be cast to android.support.v7.widget.LinearLayoutCompat

问题描述

从LinearLayout切换到ConstraintLayout会引发此错误

Switching from LinearLayout to ConstraintLayout throwing this error

java.lang.ClassCastException: android.support.v7.widget.ActivityChooserView$InnerLayout cannot be cast to android.support.v7.widget.LinearLayoutCompat                                                                                                                                             

当我尝试在片段中的onCreateOptionsMenu()中添加菜单时发生错误.

The error occurs when i try to inflate the menu in onCreateOptionsMenu() in my fragment.

我要膨胀的菜单:-

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">   
    <item
        android:id="@+id/action_share"
        app:showAsAction="always"
        android:orderInCategory="101"
        android:icon="@android:drawable/ic_menu_share"
        android:title="@string/action_share"
        app:actionProviderClass="android.support.v7.widget.ShareActionProvider"
        />
</menu>

我的onCreateOptionsMenu(..)

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {     
    inflater.inflate(R.menu.customerdetail, menu);      
    MenuItem menuItem = menu.findItem(R.id.action_share);
    mShareActionProvider = (ShareActionProvider) 
    MenuItemCompat.getActionProvider(menuItem);         
 // If i comment out this whole part everything is fine !!
 }

编辑:-日志的屏幕截图:-

Edit :- ScreenShot of the log:-

更新:-添加app:actionProviderClass="android.support.v7.widget.ShareActionProvider"项会导致错误.

Update :- Adding the app:actionProviderClass="android.support.v7.widget.ShareActionProvider" item causes the error.

如ShaneCoder所建议的那样，下拉至27.0.2/更改为LinearLayout可以消除错误，但我想知道

As suggested by ShaneCoder dropping down to 27.0.2 / changing to LinearLayout removes the error but i want to know

为什么27.1.0在夸大Class android.support.v7.widget.ShareActionProvider时在运行时抛出此类错误? (这是27.1.0中的错误)

Why is 27.1.0 is throwing such error at runtime while inflating Class,android.support.v7.widget.ShareActionProvider ? (is it a bug in 27.1.0 )

推荐答案

不确定这是否是您要解决的问题...

Not sure if this is the issue you're fighting ...

我最近升级了我的支持库依赖项.使用支持库27.1.0，我得到了经过验证的代码的异常.我现在正在使用27.0.2.这个异常消失了.

I recently upgraded my support library dependencies. With support libraries 27.1.0 I was getting this exception with proven code. I'm using 27.0.2 now. This exception is gone.

未经测试或证明，但认为可能会有所帮助.

Not tested or proven, but thought it might help.

修改

我不确定27.1.0怎么了.过去，我不得不备份次要版本，以解决从升级到最新支持库的问题.我猜没有人是完美的.我相信27.0.2是27.1.0

I'm not sure what is wrong with 27.1.0. I've had to back up a minor release in the past to resolve from upgrading to the latest support libraries. I guess nobody's perfect. I believe 27.0.2 is the latest release prior to 27.1.0

编辑2

此处是指向Googles Issue Tracker上该问题的链接.标记为固定的2018年2月28日.应尽快发布.

Here's a link to the issue on Googles Issue Tracker. It's marked fixed February 28, 2018. Should be released soon.

编辑3

已确认在27.1.1

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