使用Espresso单击不完全可见的imageButton

Question

我有一个ImageButton设计不完全可见的自定义,因此当我执行单击操作时,我收到此错误:

android.support.test.espresso.PerformException: Error performing 'single click' on view 'with id: test.com.myproject.app:id/navigationButtonProfile'.
Caused by: java.lang.RuntimeException: Action will not be performed because the target view does not match one or more of the following constraints:
at least 90 percent of the view's area is displayed to the user.
at android.support.test.espresso.ViewInteraction$1.run(ViewInteraction.java:138)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:422)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5356)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
at dalvik.system.NativeStart.main(Native Method)

按钮的一小部分位于屏幕之外(即,它在顶部被裁剪),可能按钮的12%在屏幕外.这是设计使然,无法滚动或执行任何视图操作以使其可见.任何人都知道如何超越这个90%的约束？

解决方案: 我按照建议创建了自己的点击操作,并且完美运行.我从Google Espresso中复制了该类,并在此方法中将其从90更改为75:

    @Override
    @SuppressWarnings("unchecked")
    public Matcher<View> getConstraints() {
        Matcher<View> standardConstraint = isDisplayingAtLeast(75);
        if (rollbackAction.isPresent()) {
            return allOf(standardConstraint, rollbackAction.get().getConstraints());
        } else {
            return standardConstraint;
        }
    }

Answer 1

以上都不适合我.这是一个自定义匹配器,可以完全删除该约束,并允许您单击视图

 onView(withId(yourID)).check(matches(allOf( isEnabled(), isClickable()))).perform(
            new ViewAction() {
                @Override
                public Matcher<View> getConstraints() {
                    return ViewMatchers.isEnabled(); // no constraints, they are checked above
                }

                @Override
                public String getDescription() {
                    return "click plus button";
                }

                @Override
                public void perform(UiController uiController, View view) {
                    view.performClick();
                }
            }
    );

Answer 2

你必须滚动到按钮之前:

onView(withId(R.id.button_id)).perform(scrollTo(), click());

Answer 3

我认为没有任何简单,优雅的解决方案.90%的约束是硬编码的GeneralClickAction,并且类是最终的,因此我们无法覆盖getConstraints.

我会根据GeneralClickAction代码编写自己的ViewAction ,跳过isDisplayingAtLeast支票.

Answer 4

这有助于我在运行测试时解决按钮可见性问题

public static ViewAction handleConstraints(final ViewAction action, final Matcher<View> constraints)
{
    return new ViewAction()
    {
        @Override
        public Matcher<View> getConstraints()
        {
            return constraints;
        }

        @Override
        public String getDescription()
        {
            return action.getDescription();
        }

        @Override
        public void perform(UiController uiController, View view)
        {
            action.perform(uiController, view);
        }
    };
}

public void clickbutton()
{
    onView(withId(r.id.button)).perform(handleConstraints(click(), isDisplayingAtLeast(65)));
}

Answer 5

默认点击Espresso需要查看视图> 90%.您如何看待创建自己的clickViewAction？像这样...

public final class MyViewActions {
   public static ViewAction click() {
      return new GeneralClickAction(SafeTap.SINGLE, GeneralLocation.CENTER, Press.FINGER);
    }
}

此单击将单击视图的中心.

然后你可以像这样执行点击: onView(withId(....)).perform(MyViewActions.click());

我希望它能奏效.