TaskDescription 的主要颜色应该是不透明的 Android 6.0

Question

我的代码是，

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 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {\n        Bitmap bm = BitmapFactory.decodeResource(context.getResources(),R.drawable.app_icon);\n        ActivityManager.TaskDescription taskDescription = new ActivityManager.TaskDescription("AppName", bm ,R.color.colorPrimaryDark);\n        setTaskDescription(taskDescription);\n    }\n

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在colors.xml

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<color name="colorPrimaryDark">#FF9800</color> \n

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它给出了错误java.lang.RuntimeException: A TaskDescription\'s primary color should be opaque

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编辑1：

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清单文件

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<application\n    android:allowBackup="true"\n    android:icon="@drawable/app_icon3"\n    android:label="@string/app_name"\n    android:theme="@style/AppTheme">\n

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样式.xml

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<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">\n    <item name="colorPrimaryDark">#242533</item>\n    <item name="colorPrimary">#242533</item>\n    <item name="colorAccent">@color/white</item>                    \n\n</style>\n

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日志猫

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 E/AndroidRuntime: FATAL EXCEPTION: main\n              Process: co.treeline.kitetrack, PID: 18419\n              java.lang.RuntimeException: Unable to start activity ComponentInfo{co.treeline.kitetrack/co.treeline.kitetrack.SplashScreen}: java.lang.RuntimeException: A TaskDescription\'s primary color should be opaque\n                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2426)\n                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490)\n                  at android.app.ActivityThread.access$900(ActivityThread.java:154)\n                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)\n                  at android.os.Handler.dispatchMessage(Handler.java:102)\n                  at android.os.Looper.loop(Looper.java:148)\n                  at android.app.ActivityThread.main(ActivityThread.java:5443)\n                  at java.lang.reflect.Method.invoke(Native Method)\n                  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)\n                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)\n               Caused by: java.lang.RuntimeException: A TaskDescription\'s primary color should be opaque\n                  at android.app.ActivityManager$TaskDescription.<init>(ActivityManager.java:589)\n                  at co.treeline.kitetrack.SplashScreen.changeMinimizedActionbarColor(SplashScreen.java:284)\n                  at co.treeline.kitetrack.SplashScreen.onCreate(SplashScreen.java:73)\n                  at android.app.Activity.performCreate(Activity.java:6259)\n                  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1130)\n                  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379)\n                  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490)\xc2\xa0\n                  at android.app.ActivityThread.access$900(ActivityThread.java:154)\xc2\xa0\n                  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354)\xc2\xa0\n                  at android.os.Handler.dispatchMessage(Handler.java:102)\xc2\xa0\n                  at android.os.Looper.loop(Looper.java:148)\xc2\xa0\n                  at android.app.ActivityThread.main(ActivityThread.java:5443)\xc2\xa0\n                  at java.lang.reflect.Method.invoke(Native Method)\xc2\xa0\n                  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728)\xc2\xa0\n                  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)\xc2\xa0\n

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这里有什么问题？

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Answer 1

原因是TaskDescription("AppName", bm ,R.color.colorPrimaryDark)需要颜色值作为参数，并且您正在使用资源 ID。它不一样，你必须通过方法获取你的颜色context.getResources().getColor(R.color.colorPrimaryDark)。

改变 ：

ActivityManager.TaskDescription taskDescription = new ActivityManager.TaskDescription("AppName", bm ,R.color.colorPrimaryDark);

到

ActivityManager.TaskDescription taskDescription = new ActivityManager.TaskDescription("AppName", bm , ContextCompat.getColor(context, R.color.colorPrimaryDark));