在对话框中选择微调器时，Android espresso中的RunTimeException

Question

我有一个活动，其中一些对话框是开放的。在这个对话框中有一个微调器。我想在这个微调器中选择一个特定的值，但我得到以下异常：

java.lang.RuntimeException: Waited for the root of the view hierarchy to have window focus and not be requesting layout for over 10 seconds. If you specified a non default root matcher, it may be picking a root that never takes focus. Otherwise, something is seriously wrong. Selected Root:
Root{application-window-token=android.view.ViewRootImpl$W@7017bc1, window-token=android.view.ViewRootImpl$W@7017bc1, has-window-focus=false, layout-params-type=1, layout-params-string=WM.LayoutParams{(0,0)(fillxfill) sim=#3 ty=1 fl=#1810100 wanim=0x10303e5 needsMenuKey=2}, decor-view-string=DecorView{id=-1, visibility=VISIBLE, width=1280, height=752, has-focus=true, has-focusable=true, has-window-focus=false, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}}
.All Roots:
Root{application-window-token=android.view.ViewRootImpl$W@ae6d4cb, window-token=android.view.ViewRootImpl$W@920a4a8, has-window-focus=true, layout-params-type=1002, layout-params-string=WM.LayoutParams{(91,111)(509x113) gr=#10000033 sim=#1 ty=1002 fl=#1860200 fmt=-3 wanim=0x10302e3 surfaceInsets=Rect(0, 0 - 0, 0) (manual)}, decor-view-string=PopupDecorView{id=-1, visibility=VISIBLE, width=509, height=113, has-focus=true, has-focusable=true, has-window-focus=true, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}}
Root{application-window-token=android.view.ViewRootImpl$W@ae6d4cb, window-token=android.view.ViewRootImpl$W@ae6d4cb, has-window-focus=false, layout-params-type=2, layout-params-string=WM.LayoutParams{(0,0)(wrapxwrap) gr=#11 sim=#3 ty=2 fl=#1800002 fmt=-3 wanim=0x10303e6 needsMenuKey=2}, decor-view-string=DecorView{id=-1, visibility=VISIBLE, width=616, height=490, has-focus=true, has-focusable=true, has-window-focus=false, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}}
Root{application-window-token=android.view.ViewRootImpl$W@7017bc1, window-token=android.view.ViewRootImpl$W@7017bc1, has-window-focus=false, layout-params-type=1, layout-params-string=WM.LayoutParams{(0,0)(fillxfill) sim=#3 ty=1 fl=#1810100 wanim=0x10303e5 needsMenuKey=2}, decor-view-string=DecorView{id=-1, visibility=VISIBLE, width=1280, height=752, has-focus=true, has-focusable=true, has-window-focus=false, is-clickable=false, is-enabled=true, is-focused=false, is-focusable=false, is-layout-requested=false, is-selected=false, root-is-layout-requested=false, has-input-connection=false, x=0.0, y=0.0, child-count=1}}
at android.support.test.espresso.base.RootViewPicker.get(RootViewPicker.java:99)
at android.support.test.espresso.ViewInteractionModule.provideRootView(ViewInteractionModule.java:69)
at android.support.test.espresso.ViewInteractionModule_ProvideRootViewFactory.get(ViewInteractionModule_ProvideRootViewFactory.java:23)
at android.support.test.espresso.ViewInteractionModule_ProvideRootViewFactory.get(ViewInteractionModule_ProvideRootViewFactory.java:9)
at android.support.test.espresso.base.ViewFinderImpl.getView(ViewFinderImpl.java:68) .....

我的代码：

 protected void selectSpinnerValue(int id, String value) {
    onView(withId(id)).perform(click());
    onData(allOf(is(instanceOf(String.class)), is(value))).perform(click());
}

异常发生在onData（allOf ....）

行上

如何告诉espresso在对话框中查看？

Answer 1

当我尝试匹配对话框片段内的微调器内的项目时，我遇到了同样的错误。 这有助于：

onView(withText(value)).inRoot(isPlatformPopup()).perform(click());

Answer 2

试试这个：

onData(allOf(is(instanceOf(String.class)), is(value)))
    .inRoot(isPlatformPopup()).perform(click());

Answer 3

我在使用 Android Pie 的Pixel 2 XL上遇到相同的问题，我必须添加

.inRoot(isPlatformPopup())

当出现EditText时，凭据将自动填充微调器

Answer 4

当我尝试匹配警报对话框中的文本时，我遇到了相同的错误。这有助于：

onView(withText(text)).inRoot(RootMatchers.isDialog()).perform(click());