错误膨胀类 android.support.v7.widget.RecyclerView
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Error inflating class android.support.v7.widget.RecyclerView
提问by nomongo
I'm trying to use RecyclerView in my existing project, builds without errors but getting no class found error for the RecyclerView while inflating. Cannot see what I'm doing wrong. Thanks for helping!
我正在尝试在我现有的项目中使用 RecyclerView，构建时没有错误，但在膨胀时没有发现 RecyclerView 的类错误。看不到我做错了什么。感谢您的帮助！
//activity_main.xml
//activity_main.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
//MainActivity.onCreate
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
ItemData itemsData[] = { new ItemData("Help",R.drawable.visa),
new ItemData("Delete",R.drawable.sample),
new ItemData("Cloud",R.drawable.sample),
new ItemData("Favorite",R.drawable.sample),
new ItemData("Like",R.drawable.sample),
new ItemData("Rating",R.drawable.sample)};
// 2. set layoutManger
recyclerView.setLayoutManager(new LinearLayoutManager(this));
// 3. create an adapter
MyAdapter mAdapter = new MyAdapter(itemsData);
// 4. set adapter
recyclerView.setAdapter(mAdapter);
// 5. set item animator to DefaultAnimator
//recyclerView.setItemAnimator(new DefaultItemAnimator());
recyclerView.setHasFixedSize(true);
}
//build.gradle
//build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 20
buildToolsVersion '19.1.0'
defaultConfig {
applicationId "com.domain.project"
minSdkVersion 19
targetSdkVersion 20
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:support-v4:+'
compile 'com.android.support:support-v13:+'
compile project(':facebook-3.15')
compile project(':parse-1.5.1')
compile project(':viewpagerindicator-2.4.1')
compile 'com.github.manuelpeinado.fadingactionbar:fadingactionbar:3.1.2'
compile 'com.android.support:cardview-v7:+'
compile 'com.android.support:recyclerview-v7:+'
compile 'com.google.android.gms:play-services:+'
}
configurations {
// to avoid double inclusion of support libraries
all*.exclude group: 'com.android.support', module: 'support-v4'
}
//LOGCAT
//逻辑猫
08-24 17:49:27.626 27544-27544/com.domain.project E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.domain.project, PID: 27544
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.domain.project/com.domain.project.MainActivity}: android.view.InflateException: Binary XML file line #7: Error inflating class android.support.v7.widget.RecyclerView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2215)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2264)
at android.app.ActivityThread.access0(ActivityThread.java:144)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1205)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5139)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class android.support.v7.widget.RecyclerView
at android.view.LayoutInflater.createView(LayoutInflater.java:620)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:343)
at android.app.Activity.setContentView(Activity.java:1929)
at com.domain.project.MainActivity.onCreate(MainActivity.java:35)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2169)
????????????at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2264)
????????????at android.app.ActivityThread.access0(ActivityThread.java:144)
????????????at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1205)
????????????at android.os.Handler.dispatchMessage(Handler.java:102)
????????????at android.os.Looper.loop(Looper.java:136)
????????????at android.app.ActivityThread.main(ActivityThread.java:5139)
????????????at java.lang.reflect.Method.invokeNative(Native Method)
????????????at java.lang.reflect.Method.invoke(Method.java:515)
????????????at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796)
????????????at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612)
????????????at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at android.view.LayoutInflater.createView(LayoutInflater.java:594)
????????????at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
????????????at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
????????????at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
????????????at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
????????????at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
????????????at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:343)
????????????at android.app.Activity.setContentView(Activity.java:1929)
????????????at com.domain.project.MainActivity.onCreate(MainActivity.java:35)
????????????at android.app.Activity.performCreate(Activity.java:5231)
????????????at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
????????????at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2169)
????????????at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2264)
????????????at android.app.ActivityThread.access0(ActivityThread.java:144)
????????????at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1205)
????????????at android.os.Handler.dispatchMessage(Handler.java:102)
????????????at android.os.Looper.loop(Looper.java:136)
????????????at android.app.ActivityThread.main(ActivityThread.java:5139)
????????????at java.lang.reflect.Method.invokeNative(Native Method)
????????????at java.lang.reflect.Method.invoke(Method.java:515)
????????????at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796)
????????????at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612)
????????????at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NoClassDefFoundError: android.support.v4.util.Pools$SimplePool
at android.support.v7.widget.RecyclerView.<init>(RecyclerView.java:121)
at android.support.v7.widget.RecyclerView.<init>(RecyclerView.java:213)
????????????at java.lang.reflect.Constructor.constructNative(Native Method)
????????????at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
????????????at android.view.LayoutInflater.createView(LayoutInflater.java:594)
????????????at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
????????????at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
????????????at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
????????????at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
????????????at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
????????????at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:343)
????????????at android.app.Activity.setContentView(Activity.java:1929)
????????????at com.domain.project.MainActivity.onCreate(MainActivity.java:35)
????????????at android.app.Activity.performCreate(Activity.java:5231)
????????????at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
????????????at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2169)
????????????at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2264)
????????????at android.app.ActivityThread.access0(ActivityThread.java:144)
????????????at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1205)
????????????at android.os.Handler.dispatchMessage(Handler.java:102)
????????????at android.os.Looper.loop(Looper.java:136)
????????????at android.app.ActivityThread.main(ActivityThread.java:5139)
????????????at java.lang.reflect.Method.invokeNative(Native Method)
????????????at java.lang.reflect.Method.invoke(Method.java:515)
????????????at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:796)
????????????at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:612)
????????????at dalvik.system.NativeStart.main(Native Method)
回答by codingjeremy
Or... in my case, I was including the androidx version of RecyclerView in my dependencies (build.gradle) but using the other in my XML... Doh.
或者...在我的情况下，我在我的依赖项（build.gradle）中包含了 RecyclerView 的 androidx 版本，但在我的 XML 中使用了另一个... Doh。
Replaced
已更换
android.support.v7.widget.RecyclerView
with
和
androidx.recyclerview.widget.RecyclerView
and it worked! :)
它奏效了！:)
回答by Eman Sallam
In the xml declaration of the RecyclerView: Replace
在 RecyclerView 的 xml 声明中：替换
<android.support.v7.widget.RecyclerView
with
和
<androidx.recyclerview.widget.RecyclerView
Hope this works ^_^
希望这有效^_^
回答by sreekumar
Please check your support libs are updated to latest..
请检查您的支持库是否已更新到最新版本。
com.android.support:support-v4: and com.android.support:recyclerview-v7
com.android.support:support-v4: 和 com.android.support:recyclerview-v7
回答by masbayu
for the new API Version, on the build.gradle - project dependencies add :
对于新的 API 版本，在 build.gradle - 项目依赖项中添加：
implementation 'androidx.recyclerview:recyclerview:1.0.0'
and in the layout, you should replace :
在布局中，您应该替换：
android.support.v7.widget.RecyclerView
with
和
androidx.recyclerview.widget.RecyclerView
回答by Muazzam abbas
In your layout file:
在您的布局文件中：
Use:
用：
androidx.recyclerview.widget.RecyclerView
androidx.recyclerview.widget.RecyclerView
Instead:
反而：
android.support.v7.widget.RecyclerView
android.support.v7.widget.RecyclerView
It will work for you.
它会为你工作。
If you do not want to use Androidx then in your gradle.propertiesfile and do this:
如果您不想使用 Androidx，则在您的gradle.properties文件中执行以下操作：
android.useAndroidX=false
android.enableJetifier=false
回答by Raj Karekar
Add Dependencies in gradle file.
在 gradle 文件中添加依赖项。
dependencies{
compile 'com.android.support:appcompat-v7:23.3.0'
compile 'com.android.support:recyclerview-v7:23.3.0'
}
回答by Melbourne Lopes
Just add following into your proguard-rules.pro,
只需将以下内容添加到您的 proguard-rules.pro 中，
-keep public class android.support.v7.widget.** { *; }
回答by guy_m
回答by nomongo
I figured it out. Removing the following configuration in build.gradle makes the recyclerview work. This leads me to another question: android studio: gradle dependency error
我想到了。删除 build.gradle 中的以下配置使 recyclerview 工作。这让我想到了另一个问题：android studio: gradle dependency error
--
——
configurations {
// to avoid double inclusion of support libraries
all*.exclude group: 'com.android.support', module: 'support-v4'
}
回答by VeeyaaR
Make sure you have added proper dependencies for recyclerView. Then check whether you have dependecy for cardView.
确保您已为 recyclerView 添加了适当的依赖项。然后检查你是否有 cardView 的依赖。
If yes, then
如果是，那么
remove card view dependency
sync project
then again add card view dependency
clean project
rebuild project
移除卡片视图依赖
同步项目
然后再次添加卡片视图依赖项
清洁工程
重建项目
It worked for me
它对我有用
