我正在使用RecyclerView来保存CardViews列表。在运行Lollipop 5.0.2的设备上,该应用程序运行良好,并且列表正确显示了数据。但是,在其他运行前棒棒糖的设备(例如运行4.4.2的设备)上,出现以下错误:
android.view.InflateException: Binary XML file line #2: Error inflating class android.support.v7.widget.CardView
我已经在StackOverflow上搜索了答案,并且大多数人都说问题出在我的依赖项上,但是我的build.gradle具有我需要的所有最新依赖项。
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:21.0.3'
compile 'com.android.support:recyclerview-v7:21.0.3'
compile 'com.android.support:cardview-v7:21.0.3'
compile 'com.google.android.gms:play-services:6.5.87'
}
这是LogCat中引用的XML布局:
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
android:background="@drawable/ripple_background"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
card_view:cardUseCompatPadding="true"
card_view:cardElevation="2dp"
android:layout_marginLeft="2dp"
android:id="@+id/news_item_layout"
android:layout_marginRight="2dp"
card_view:cardCornerRadius="1dp"
android:layout_width="match_parent"
android:layout_height="match_parent">
....
</android.support.v7.widget.CardView>
这是完整的LogCat报告:
android.view.InflateException: Binary XML file line #2: Error inflating class android.support.v7.widget.CardView
at android.view.LayoutInflater.createView(LayoutInflater.java:613)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
at com.macronews.macro.adapter.TopicsCursorAdapter.onCreateViewHolder(TopicsCursorAdapter.java:85)
at com.macronews.macro.adapter.TopicsCursorAdapter.onCreateViewHolder(TopicsCursorAdapter.java:41)
at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:4121)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3431)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3340)
at android.support.v7.widget.LayoutState.next(LayoutState.java:83)
at android.support.v7.widget.StaggeredGridLayoutManager.fill(StaggeredGridLayoutManager.java:1337)
at android.support.v7.widget.StaggeredGridLayoutManager.onLayoutChildren(StaggeredGridLayoutManager.java:584)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:1988)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:2237)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.RelativeLayout.onLayout(RelativeLayout.java:948)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1649)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1507)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1420)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1649)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1507)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1420)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:13754)
at android.view.ViewGroup.layout(ViewGroup.java:4364)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1868)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1689)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4214)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)
at android.view.Choreographer.doCallbacks(Choreographer.java:555)
at android.view.Choreographer.doFrame(Choreographer.java:525)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
at java.lang.
编辑涟漪背景可绘制是这样的:
<?xml version="1.0" encoding="utf-8"?>
<ripple
xmlns:android="http://schemas.android.com/apk/res/android"
android:color="@color/accent_color"/>
从appcompat v21的官方说明中
为什么棒棒糖前没有涟漪?Android 5.0的新RenderThread是让RippleDrawable顺利运行的主要因素。为了在早期版本的Android上优化性能,我们暂时不使用RippleDrawable。
尝试使用涟漪可绘制对象时,会在pre-lollipop上出错(这就是为什么它说第2行,它是xml可绘制对象)的原因。如果希望在不同状态下有所不同,请使用其他文件夹(drawable-v21)产生波纹,并在普通可绘制对象中使用选择器。
我相信官方支持不会很快到来,因为lollipop具有专用的渲染线程,是其他版本所没有的。
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