我正在尝试使用新的材料,我已经做出以下更改,这是我的 gradle :
android {
compileSdkVersion 28
defaultConfig {
applicationId "ir.ss.edu"
minSdkVersion 14
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'com.android.support:appcompat-v7:28.0.0'
implementation 'com.android.support.constraint:constraint-layout:1.1.3'
implementation 'com.android.support:support-v4:28.0.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'android.arch.navigation:navigation-fragment:1.0.0'
implementation 'com.android.support:design:28.0.0'
}
我把我的主题改成了这个:
<style name="AppTheme" parent="Theme.MaterialComponents.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
当我将MaterialButton添加到我的布局中并运行我的应用程序时,它会出现错误:没有找到类“com.google.android.material.button.MaterialButton”
我该如何解决这个问题?