在Android中运行应用程序时会触发此错误:
Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering
当我取消注释这些行时会触发错误:
fabAddLocation = (FloatingActionButton) findViewById(R.id.fab_add_location);
fabAddLocation.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
...
}
});
我认为这可能是兼容性问题。我使用以下支持库:
compile 'com.android.support:appcompat-v7:25.1.0'
compile 'com.android.support:support-v4:25.1.0'
compile 'com.android.support:design:25.1.0'
compile 'com.android.support:recyclerview-v7:25.1.0'
compile 'com.android.support:cardview-v7:25.1.0'
然后在模块build.gradle中配置:
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.mypackage.myproj"
minSdkVersion 15
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
该活动扩展了AppCompatActivity
活动的XML布局:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="....MainActivity">
<fragment
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.MapFragment"
android:id="@+id/mapFragment" />
<android.support.design.widget.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_margin="10dp"
android:src="@mipmap/ic_add_fab"
app:layout_anchor="@id/mapFragment"
android:id="@+id/fab_add_location"
app:layout_anchorGravity="bottom|left|end" />
</android.support.design.widget.CoordinatorLayout>
答案 0 :(得分:0)
尝试在build.gradle(Module:app)文件defaultConfig部分添加multiDexEnabled true并重建项目。
答案 1 :(得分:0)
也许你用android studio资产图像工具插入mdpi hdpi xxdpi ..图标.. 这是我的问题