居preSSO：视频下载（）; [英] Espresso: Thread.sleep( );

问题描述

居preSSO声称，没有必要对视频下载（）; ，但我的code没有工作，除非我有它。我连接到IP。连接时，显示一个进度对话框。我需要一个睡眠等待对话框解雇。这是我的测试片段，我使用它：

Espresso claims that there is no need for Thread.sleep();, but my code doesn't work unless I include it. I am connecting to an IP. While connecting, a progress dialog is shown. I need a sleep to wait for the dialog to dismiss. This is my test snippet where I use it:

    IP.enterIP(); // fills out an IP dialog (this is done with espresso)

    //progress dialog is now shown
    Thread.sleep(1500);

    onView(withId(R.id.button).perform(click());

我已经试过这code的与和没有的的视频下载（）; ，但它说 R.id.Button 不存在。我可以得到它的工作的唯一办法就是睡眠。

I have tried this code with and without the Thread.sleep(); but it says R.id.Button doesn't exist. The only way I can get it to work is with sleep.

另外，我曾尝试更换视频下载（）; 的东西像 getInstrumentation（）waitForIdleSync（）; ，仍然没有运气。

Also, I have tried replacing Thread.sleep(); with things like getInstrumentation().waitForIdleSync(); and still no luck.

这是做到这一点的唯一途径？还是我失去了一些东西？

Is this the only way to do this? Or am I missing something?

在此先感谢。

推荐答案

在我的脑海里正确的做法是：

On my mind correct approach will be:

/** Perform action of waiting for a specific view id. */
public static ViewAction waitId(final int viewId, final long millis) {
    return new ViewAction() {
        @Override
        public Matcher<View> getConstraints() {
            return isRoot();
        }

        @Override
        public String getDescription() {
            return "wait for a specific view with id <" + viewId + "> during " + millis + " millis.";
        }

        @Override
        public void perform(final UiController uiController, final View view) {
            uiController.loopMainThreadUntilIdle();
            final long startTime = System.currentTimeMillis();
            final long endTime = startTime + millis;
            final Matcher<View> viewMatcher = withId(viewId);

            do {
                for (View child : TreeIterables.breadthFirstViewTraversal(view)) {
                    // found view with required ID
                    if (viewMatcher.matches(child)) {
                        return;
                    }
                }

                uiController.loopMainThreadForAtLeast(50);
            }
            while (System.currentTimeMillis() < endTime);

            // timeout happens
            throw new PerformException.Builder()
                    .withActionDescription(this.getDescription())
                    .withViewDescription(HumanReadables.describe(view))
                    .withCause(new TimeoutException())
                    .build();
        }
    };
}

和再使用的模式将是：

// wait during 15 seconds for a view
onView(isRoot()).perform(waitId(R.id.dialogEditor, Sampling.SECONDS_15));

这篇关于居preSSO：视频下载（）;的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！