大佬教程收集整理的这篇文章主要介绍了将Robolectric与android.support.v7.app.MediaRouteButton一起使用,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
<?xml version="1.0" encoding="utf-8"?> <android.support.consTraint.ConsTraintLayout xmlns:android="http://scheR_463_11845@as.android.com/apk/res/android" xmlns:tools="http://scheR_463_11845@as.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="mykwillis.com.mediaroutebutton.MainActivity"> <android.support.v7.app.MediaRouteButton android:id="@+id/video_layer_chromecasT_Button" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center"/> </android.support.consTraint.ConsTraintLayout>
我已经创建了一个基本的Robolectric测试的开始,它只是构建和创建MainActivity:
@RunWith(RobolectricTestRunner.class) @Config(constants = BuildConfig.class) public class MainActivityTest { @Test public void loadActivity() { MainActivity activity = Robolectric.buildActivity(MainActivity.class).create().get(); } }
当我尝试运行此测试时,收到以下错误:
android.view.InflateException: XML file build/intermediates/res/merged/debug/layout/activity_main.xml line #-1 (sorry,not yet implemented): XML file build/intermediates/res/merged/debug/layout/activity_main.xml line #-1 (sorry,not yet implemented): Error inflaTing class android.support.v7.app.MediaRouteButton Caused by: android.view.InflateException: XML file build/intermediates/res/merged/debug/layout/activity_main.xml line #-1 (sorry,not yet implemented): Error inflaTing class android.support.v7.app.MediaRouteButton
深入研究,当Robolectric尝试加载MediaRouteButton的样式信息时,它似乎失败了.相关的堆栈跟踪似乎是这样的:
Caused by: java.lang.ClassCastException: org.robolectric.res.AttrData cAnnot be cast to org.robolectric.res.StyleData at org.robolectric.shadows.ShadowAssetManager.resolveStyle(ShadowAssetManager.java:617) at org.robolectric.shadows.ShadowAssetManager.buildTypedValue(ShadowAssetManager.java:742) at org.robolectric.shadows.ShadowAssetManager.attrsToTypedArray(ShadowAssetManager.java:793) at org.robolectric.shadows.ShadowresourcesImpl$ShadowThemeImpl.obtainStyledAttributes(ShadowresourcesImpl.java:177) at android.content.res.resourcesImpl$ThemeImpl.obtainStyledAttributes(resourcesImpl.java) at android.content.res.resources$Theme.obtainStyledAttributes(resources.java:1440) at android.content.Context.obtainStyledAttributes(Context.java:587) at android.support.v7.app.MediaRouterThemeHelper.getThemeColor(MediaRouterThemeHelper.java:169) at android.support.v7.app.MediaRouterThemeHelper.getControllerColor(MediaRouterThemeHelper.java:94) At android.support.v7.app.MediaRouterThemeHelper.createThemedContext(MediaRouterThemeHelper.java:62) at android.support.v7.app.MediaRouteButton.(MediaRouteButton.java) at android.view.LayoutInflater.createView(LayoutInflater.java:645)
我使用以下依赖项:
dependencies { compile fileTree(dir: 'libs',include: ['*.jar']) compile 'com.android.support:appcompat-v7:25.3.0' compile 'com.android.support:mediarouter-v7:25.3.0' compile 'com.android.support.consTraint:consTraint-layout:1.0.2' TESTCompile 'junit:junit:4.12' TESTCompile "org.robolectric:robolectric:3.3.1" TESTCompile 'org.khronos:opengl-api:gl1.1-android-2.1_r1' // https://github.com/robolectric/robolectric/issues/1932 }
我认为这意味着我对Robolectric提供了一个Shadow for MediaRouteButton(由com.android.support:mediarouter-v7:25.3.0提供)的运气不好,而且我需要自己为这个类创建一个Shadow.我在http://robolectric.org/extending/跟随指南试图创建一个简单的阴影,至少可以让我的视图加载,但无济于事.这是我创造的:
@Implements(android.support.v7.app.MediaRouteButton.class) public class MediaRouteButtonShadow extends ShadowView { public void __constructor__(Context context,AttributeSet attributeSet,int defStylE) { } }
然后我将@Config语句更新为:
@Config(constants = BuildConfig.class,shadows = MediaRouteButtonShadow.class)
有关如何创建允许视图加载的最小阴影的任何指针?
更新:演示此问题的示例应用程序位于:https://github.com/mykwillis/android-mediaroutebutton-test
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