用浓缩咖啡点击不完全可见的imageButton

Question

我有一个自定义的ImageButton，根据设计，它不是完全可见的，所以当我执行单击操作时，我会得到以下错误：

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)

按钮的一小部分在屏幕外（即它被裁剪在顶部），可能12%的按钮在屏幕外。这是设计的，不可能滚动或执行任何视图操作来使其可见。有谁知道如何克服这个90%的限制？

    @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

以上这些对我都不起作用。下面是一个自定义匹配器，它完全消除了这个约束，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();
                }
            }
    );