带有appcompat的Android ClassNotFoundException -v7:28.0.0
带有appcompat的Android ClassNotFoundException -v7:28.0.0
提问于 2019-05-21 04:18:11
我正在开发一个Android应用程序，并尝试使用工具栏为其添加一些功能；这就是我使用appcompat-v7模块的原因。我遵循了this教程(抱歉，因为它是西班牙语的)，我已经用兼容性支持包更新了我的集成开发环境，我还在我的Gradle文件中添加了新的模块，我已经用这个新的工具栏更新了我的应用程序的设计XML (我可以在设计编辑器中看到这个工具栏)。
但是，当我启动我的应用程序时，我得到以下错误：
java.lang.RuntimeException: Unable to start activity ComponentInfo{xxx}: android.view.InflateException: Binary XML file line #10: Binary XML file line #10: Error inflating class android.support.v7.widget.Toolbar
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2913)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3048)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1808)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: android.view.InflateException: Binary XML file line #10: Binary XML file line #10: Error inflating class android.support.v7.widget.Toolbar
Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class android.support.v7.widget.Toolbar
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.widget.Toolbar" on path: DexPathList[[zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/base.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_dependencies_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_resources_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_0_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_1_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_2_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_3_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_4_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_5_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_6_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_7_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_8_apk.apk", zip file "/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.gomar.gomar_sanidad-xZFFzOUSrlLb9osLbk1xcA==/lib/x86, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(...我的gradle文件：
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.gomar.gomar_sanidad"
minSdkVersion 21
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'androidx.appcompat:appcompat:1.0.0-beta01'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test:runner:1.1.0-alpha4'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha4'
implementation 'com.google.android.material:material:1.0.0'
implementation 'com.android.support:appcompat-v7:28.0.0'
}带有工具栏(Design XML)的activity_main.xml示例：
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".NuevaFicha">
<android.support.v7.widget.Toolbar
android:id="@+id/my_toolbar"
android:layout_width="0dp"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:elevation="4dp"
android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="8dp"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/my_toolbar"
app:layout_constraintVertical_bias="0.0">
....我已经尝试了所谓的here (检查is，清理项目，无效缓存...)但这些解决方案都没有达到预期的效果。你有什么想法吗？
提前谢谢。
回答 2
Stack Overflow用户
回答已采纳
发布于 2019-05-21 05:00:36
您同时使用了androidx和AppCompat，因此error.consider使用其中任何一个。
implementation 'com.android.support:appcompat-v7:28.0.0' //this is appcompat
implementation 'androidx.appcompat:appcompat:1.0.0-beta01' //this is android x你不能同时使用androidx和android支持。
请参阅how to migrate to androidX
Stack Overflow用户
发布于 2020-05-28 07:20:13
如果您的gradle.properties文件设置了如下属性
android.useAndroidX=true替换
android.support.v7.widget.Toolbar使用
androidx.appcompat.widget.Toolbar页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/56227627
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