安卓的java渲染问题。支持设计小装置。协调布局
在将安卓 studio升级到2.2.3之后,我面临着一个问题 问题是使用安卓系统。支持设计小装置。协调布局 它显示了这个错误
The following classes could not be found: - 安卓.support.design.widget.CoordinatorLayout (Fix Build Path, Edit XML, Create Class) - 安卓.support.design.widget.TextInputLayout (Fix Build Path, Edit XML, Create Class) Tip: Try to build the project. Tip: Try to refresh the layout. \app\src\main\res\layout\activity_main.xml" in attribute "imeActionId" is not a valid integer
我试图修复构建路径,但对我无效。 当我构建和运行它时
Caused by: java.lang.ClassNotFoundException: Didn't find class "安卓.support.design.widget.CoordinatorLayout" on path: DexPathList[[zip file "/data/app/fitness.aclass.fitness-1/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]] at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) at java.lang.ClassLoader.loadClass(ClassLoader.java:511) at java.lang.ClassLoader.loadClass(ClassLoader.java:469) at 安卓.view.LayoutInflater.createView(LayoutInflater.java:571) at 安卓.view.LayoutInflater.createViewFromTag(LayoutInflater.java:743) at 安卓.view.LayoutInflater.inflate(LayoutInflater.java:482) at 安卓.view.LayoutInflater.inflate(LayoutInflater.java:414) at 安卓.view.LayoutInflater.inflate(LayoutInflater.java:365) at 安卓.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284) at 安卓.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) at fitness.aclass.fitness.MainActivity.onCreate(MainActivity.java:11) at 安卓.app.Activity.performCreate(Activity.java:6092) at 安卓.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1112) at 安卓.app.ActivityThread.performLaunchActivity(ActivityThread.java:2468) at 安卓.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2595) at 安卓.app.ActivityThread.access$800(ActivityThread.java:178) at 安卓.app.ActivityThread$H.handleMessage(ActivityThread.java:1470) at 安卓.os.Handler.dispatchMessage(Handler.java:111) at 安卓.os.Looper.loop(Looper.java:194) at 安卓.app.ActivityThread.main(ActivityThread.java:5624) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.安卓.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959) at com.安卓.internal.os.ZygoteInit.main(ZygoteInit.java:754) Suppressed: java.lang.ClassNotFoundException: 安卓.support.design.widget.CoordinatorLayout at java.lang.Class.classForName(Native Method) at java.lang.BootClassLoader.findClass(ClassLoader.java:781) at java.lang.BootClassLoader.loadClass(ClassLoader.java:841) at java.lang.ClassLoader.loadClass(ClassLoader.java:504) ... 22 more Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
这是我的身材。gradle(应用程序模块)
apply plugin: 'com.安卓.application'
安卓 {
compileSdkVersion 24
buildToolsVersion "24.0.2"
defaultConfig {
applicationId "fitness.aclass.fitness"
minSdkVersion 16
targetSdkVersion 24
versionCode 1
versionName "1.0"
testInstrumentationRunner "安卓.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-安卓.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
安卓TestCompile('com.安卓.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.安卓.support', module: 'support-annotations'
})
compile 'com.安卓.support:appcompat-v7:24.2.0'
testCompile 'junit:junit:4.12'
}
有什么解决办法吗
# 1 楼答案
协调布局是设计库的一部分。所以你应该加上
implementation' com.android.support:design:28.0.0'
或者
24.2.0
版本,如果出于某种原因需要使用过时的版本