Android “自动原因”；不幸的是，设置已停止"；错误

最后一行代码是因为我的Nexus4出现了以下错误，我试图用谷歌搜索它，但找不到任何相关信息，所以有人能解释为什么会发生错误吗

    getUiDevice().pressHome();      
    new UiObject(new UiSelector().description("Apps")).click(); 
    new UiObject(new UiSelector().text("Apps")).click();        
    new UiScrollable(new UiSelector().scrollable(true)).setAsHorizontalList().scrollIntoView(new UiSelector().text("Settings"));
    new UiObject(new UiSelector().text("Settings")).click();
    new UiScrollable(new UiSelector().scrollable(true)).scrollTextIntoView("Accessibility");        
    new UiObject(new UiSelector().text("Accessibility")).click();

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这应该是一个容易解决的问题。当您在应用程序中导航时（即加载应用程序或新页面，或任何需要加载的内容），而不是使用

10-23 13:43:16.466: E/AndroidRuntime(7995): FATAL EXCEPTION: main
10-23 13:43:16.466: E/AndroidRuntime(7995): java.lang.RuntimeException: Unable to resume activity {com.android.settings/com.android.settings.SubSettings}: java.lang.NullPointerException
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2790)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2819)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2266)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.os.Handler.dispatchMessage(Handler.java:99)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.os.Looper.loop(Looper.java:137)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.ActivityThread.main(ActivityThread.java:5103)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at java.lang.reflect.Method.invokeNative(Native Method)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at java.lang.reflect.Method.invoke(Method.java:525)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at dalvik.system.NativeStart.main(Native Method)
10-23 13:43:16.466: E/AndroidRuntime(7995): Caused by: java.lang.NullPointerException
10-23 13:43:16.466: E/AndroidRuntime(7995):     at com.android.settings.AccessibilitySettings.loadInstalledServices(AccessibilitySettings.java:586)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at com.android.settings.AccessibilitySettings.onResume(AccessibilitySettings.java:196)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.Fragment.performResume(Fragment.java:1738)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:919)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1057)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.FragmentManagerImpl.moveToState(FragmentManager.java:1039)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.FragmentManagerImpl.dispatchResume(FragmentManager.java:1850)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.Activity.performResume(Activity.java:5221)
10-23 13:43:16.466: E/AndroidRuntime(7995):     at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2780)
10-23 13:43:16.466: E/AndroidRuntime(7995):     ... 12 more

试用

 new UiObject(new UiSelector().description("Apps")).click(); 
 new UiObject(new UiSelector().text("Apps")).click();     

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had的这个问题没有等待或没有等待。问题是AccessibilitySettings在加载服务时引发了空指针异常。所以问题是，当通过测试启动时，哪些没有设置，而手动启动时，哪些没有设置。有解决此问题的方法吗？您是否解决了此问题？我现在在我的应用程序中面临着确切的问题。当我的应用程序链接到可访问性设置时，我在Google Play Console的发布前报告中遇到了这个错误。

 new UiObject(new UiSelector().description("Apps")).clickAndWaitForWindow(); 
 new UiObject(new UiSelector().text("Apps")).clickAndWaitForWindow();