扩展类android.support.design.widget.CoordinatorLayout时出错

概述我想在我的应用程序上使用FloatingActionButton,我读到这个：https://guides.codepath.com/android/Floating-Action-Buttons#google-s-official-support-library但是当我运行Activity时我有这个错误：java.lang.RuntimeException:UnabletostartactivityComponentInfo{com.xavie

我想在我的应用程序上使用floatingActionbutton,我读到这个：https://guides.codepath.com/android/Floating-Action-Buttons#google-s-official-support-library但是当我运行Activity时我有这个错误：

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xavIEr_laffargue.podcast/com.xavIEr_laffargue.podcast.ACT_Test}: androID.vIEw.InflateException: Binary XML file line #1: Error inflating class androID.support.design.Widget.CoordinatorLayout

XML文件

<androID.support.design.Widget.CoordinatorLayout    androID:ID="@+ID/main_content"    xmlns:androID="http://schemas.androID.com/apk/res/androID"    xmlns:app="http://schemas.androID.com/apk/res-auto"    androID:layout_wIDth="match_parent"    androID:layout_height="match_parent">    <ListVIEw        androID:ID="@+ID/lvTodoList"        androID:layout_wIDth="match_parent"        androID:layout_height="match_parent"></ListVIEw>    <androID.support.design.Widget.floatingActionbutton        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"        androID:layout_gravity="bottom|right"        androID:layout_margin="24dp"        androID:src="@drawable/ic_action_refresh"        app:layout_anchor="@ID/lvTodoList"        app:layout_anchorGravity="bottom|right|end" /></androID.support.design.Widget.CoordinatorLayout>

Graddle

*apply plugin: 'com.androID.application'androID {    compileSdkVersion 21    buildToolsversion "21.1.2"    defaultConfig {        applicationID "com.xavIEr_laffargue.podcast"        minSdkVersion 21        targetSdkVersion 20        versionCode 1        versionname "1.0"    }    buildTypes {        release {            MinifyEnabled false            proguardfiles getDefaultProguardfile('proguard-androID.txt'), 'proguard-rules.pro'        }    }}dependencIEs {    compile filetree(dir: 'libs', include: ['*.jar'])    compile 'com.androID.support:appcompat-v7:22.2.0'    compile 'com.androID.support:support-v4:22.2.0'    compile 'com.androID.support:design:22.2.0'    compile 'com.androID.support:multIDex:1.0.1'    compile 'com.androID.support:support-v13:22.2.0'    compile 'com.androID.support:cardvIEw-v7:21.0.+'    compile 'com.androID.support:recyclervIEw-v7:21.0.+'}

解决方法:

如果您使用Activity,请将其更改为AppCompatActivity.它可能是活动时的错误.

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