android:background="?android:attr/selectableItemBackground"波紋有邊界
android:background="?android:attr/selectableItemBackgroundBorderless"
android:background="?android:attr/selectableItemBackground"波紋有邊界
android:background="?android:attr/selectableItemBackgroundBorderless"
build.gradle 調整 buildscript { repositories { maven{ url 'http://maven.aliyun.com/nexus/content/grou