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[英]Error inflating class android.support.v7.widget.CardView
[英]Didn't find class “android.support.v7.widget.CardView”
我在這里看到了很多這樣的問題,他們都有相同的答案,請確保您有
編譯'com.android.support:cardview-v7:26.0.0'
在 build.gradle 文件中,並確保在 xml 中使用完全限定名稱...
<android.support.v7.widget.CardView
我在我的 xml 文件中使用它,並且我的 build.gradle 文件中有編譯行。 應用程序編譯,但每當我在模擬器上運行應用程序時,我單擊按鈕啟動 ShowImagesActivity,它崩潰並顯示消息“在路徑上找不到類 'android.support.v7.widget.CardView'... ”
這是我的 layout_images.xml 文件...
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<adroid.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:padding="8dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="100dp">
<TextView
android:id="@+id/textViewName"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Name"
android:textAlignment="center" />
<ImageView
android:id="@+id/imageView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/textViewName" />
</RelativeLayout>
</adroid.support.v7.widget.CardView>
</LinearLayout>
這是我的 build.gradle 文件,應用程序一...
apply plugin: 'com.android.application'
check.dependsOn 'assembleMinSdkJellybeanDebugAndroidTest', 'assembleMinSdkIcsDebugAndroidTest'
android {
compileSdkVersion 26
buildToolsVersion '26.0.0'
flavorDimensions "minSdkVersion"
defaultConfig {
applicationId "com.google.firebase.quickstart.auth"
minSdkVersion 26
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
lintOptions {
abortOnError false
}
productFlavors {
// Build variant with minSdk 16 to include Facebook and FirebaseUI libraries.
minSdkJellybean {
dimension "minSdkVersion"
minSdkVersion 16
}
// Build variant with minSdk 14, excludes Facebook and FirebaseUI libraries.
minSdkIcs {
dimension "minSdkVersion"
minSdkVersion 16
}
}
}
configurations.all {
resolutionStrategy.force 'com.android.support:support-annotations:26.0.0'
}
dependencies {
// Firebase Authentication
// Google Sign In SDK (only required for Google Sign In)
// Firebase UI
// Used in FirebaseUIActivity. The FirebaseUI-Android library has a minSdk level of 16
// so this library is only included in the minSdkJellybean variant.
// Facebook Android SDK (only required for Facebook Login)
// Used in FacebookLoginActivity. This is only compiled into the minSdkJellybean variant of this
// app. You can build a 'minSdkGingerbread' variant to test on devices with 9 <= SDK <= 15.
// Twitter Android SDK (only required for Twitter Login)
compile('com.twitter.sdk.android:twitter-core:1.6.6@aar') {
transitive = true
}
compile('com.twitter.sdk.android:twitter:1.13.1@aar') {
transitive = true
}
compile 'com.google.firebase:firebase-storage:11.2.0'
compile 'com.google.firebase:firebase-storage:11.2.0'
compile 'com.android.support:appcompat-v7:26.0.0'
compile 'com.android.support:animated-vector-drawable:26.0.0'
compile 'com.android.support:cardview-v7:26.0.0'
compile 'com.android.support:recyclerview-v7:26.0.0'
compile 'com.android.support:design:26.0.0'
compile 'com.firebaseui:firebase-ui:2.3.0'
compile 'com.google.firebase:firebase-auth:11.2.0'
compile 'com.google.android.gms:play-services-auth:11.2.0'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'com.google.firebase:firebase-database:11.2.0'
androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.2'
androidTestCompile 'com.android.support.test:runner:0.5'
minSdkJellybeanCompile 'com.facebook.android:facebook-android-sdk:4.9.0'
minSdkJellybeanCompile 'com.android.support:customtabs:26.0.0'
}
apply plugin: 'com.google.gms.google-services'
在我的代碼中我使用
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_images, parent, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
我有所有其他帖子說我需要的一切,我的 build.gradle 中的編譯行和我的 xml 視圖中的完全限定名稱,並且該應用程序編譯完美,每當我嘗試在模擬器上運行它之后它就會崩潰我單擊啟動 ShowImagesActivity 的按鈕。 如果找不到類,它不應該編譯失敗嗎? 有沒有其他解決方案,或者任何人都可以看到任何錯誤,因為無法找到類而導致應用程序崩潰? 謝謝。
我遇到了同樣的問題,但我的庫已更新為 androidX
implementation 'androidx.cardview:cardview:1.0.0'
因此我的問題是通過使用標簽解決的
<androidx.cardview.widget.CardView/>
檢查您的輸入,您在 XML 中缺少一個“n”
<adroid.support.v7.widget.CardView ...
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