android - 需要 UI Watcher 示例代码

Question

嗨自动化专家，

网址：http: //developer.android.com/tools/help/uiautomator/UiWatcher.html

如何实现这一点： 您可以使用此方法来处理阻止测试继续进行的已知阻塞问题。例如，您可以检查是否出现阻止测试的对话框，然后关闭对话框或执行一些其他适当的操作以允许测试继续

请在尝试播放视频并继续我们的测试时说“在弹出的“无法播放此视频”上按 OK”的示例代码？

Answer 1

Anvesh，以下网站有一个如何使用 UI Watcher 的完整示例http://everybodytests.blogspot.com/2012/11/uiautomator-and-watchers-adding-async.html

仅供参考，这是我在 Google 上搜索时的第一个结果uiwatcher uiautomator

Answer 2

您的观察者由UiDevice类管理。实现观察者的典型逻辑流程遵循以下模式：

1. 定义新的观察者
2. 注册您的观察者
3. 运行你的观察者

代码：

package com.watcherDemoTests;

import android.util.Log;

import com.android.uiautomator.core.UiCollection;
import com.android.uiautomator.core.UiDevice;
import com.android.uiautomator.core.UiObject;
import com.android.uiautomator.core.UiObjectNotFoundException;
import com.android.uiautomator.core.UiScrollable;
import com.android.uiautomator.core.UiSelector;
import com.android.uiautomator.core.UiWatcher;
import com.android.uiautomator.testrunner.UiAutomatorTestCase;

public class WatcherDemoTestExample1 extends UiAutomatorTestCase {

private static final String LOG_TAG = "WatcherDemoEx1";
private static final String MYOKCANCELDIALOGWATCHER_STRING = "OkCancelDialogWatcher";

public void testWatcherDemoTestExample1() throws UiObjectNotFoundException {
Log.w(LOG_TAG, "Starting our test!");

// Simulate a short press on the HOME button based on the sample test case:
//
// http://developer.android.com/tools/testing/testing_ui.html#sample
//
getUiDevice().pressHome();
// We're now on the home screen. Launch the All Apps screen.
UiObject allAppsButton = new UiObject(new UiSelector().description("Apps"));
// Simulate a click to bring up the All Apps screen.
allAppsButton.clickAndWaitForNewWindow();
// In the All Apps screen, the Snow Report app should be in the Apps tab
// assuming it is installed prior to starting this test
UiObject appsTab = new UiObject(new UiSelector().text("Apps"));
// Simulate a click to enter the Apps tab.
appsTab.click();
// Next, in the apps tabs, we can simulate a user swiping until they
// come across the Snow Report app icon. Again, swiped from the
// sample test case.
UiScrollable appViews = new UiScrollable(new UiSelector().scrollable(true));
// Set the swiping mode to horizontal (the default is vertical)
// This is only compatible with API lvl 17. Short of that it will crash
// with a "method not found" failure.
appViews.setAsHorizontalList();
// Create a UiSelector to find the Snow Report app and simulate
// a user click to launch the app.
UiObject apiDemoApp = appViews.getChildByText(new UiSelector().className(android.widget.TextView.class.getName()), "API Demos");
apiDemoApp.clickAndWaitForNewWindow();
/////////////////////////////////////////////////////////////////////
// This concludes the section devoted to simply launching the app. //
/////////////////////////////////////////////////////////////////////

// Define watcher
UiWatcher okCancelDialogWatcher = new UiWatcher() {
@Override
public boolean checkForCondition() {
UiObject okCancelDialog = new UiObject(new UiSelector().textStartsWith("Lorem ipsum"));
if(okCancelDialog.exists()){
Log.w(LOG_TAG, "Found the example OK/Cancel dialog");
UiObject okButton = new UiObject(new UiSelector().className("android.widget.Button").text("OK"));
try {
okButton.click();
} catch (UiObjectNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return (okCancelDialog.waitUntilGone(25000));
}
return false;
}
};
// Register watcher
UiDevice.getInstance().registerWatcher(MYOKCANCELDIALOGWATCHER_STRING, okCancelDialogWatcher);

// Run watcher
UiDevice.getInstance().runWatchers();

/*
* This test demonstrates UiAutomator Watchers using the Emulator's
* API Demos App/Alert Dialogs
*
* With this, the watcher will be set in advance to identify when
* an alert dialog is present and cancel it. The test will click
* on at least one item in the list.
*/
// Get Api Demos list
UiCollection apiDemoList = new UiCollection(new UiSelector().className("android.widget.ListView"));
// Click on App
UiObject appTextView = apiDemoList.getChildByText(new UiSelector()
.className(android.widget.TextView.class.getName()),
"App");
appTextView.clickAndWaitForNewWindow();
// Get App demo list
UiCollection appDemoList = new UiCollection(new UiSelector().className("android.widget.ListView"));
// Click on Alert Dialogs
UiObject alertDialogTextView = appDemoList.getChildByText(new UiSelector()
.className(android.widget.TextView.class.getName()), "Alert Dialogs");
alertDialogTextView.clickAndWaitForNewWindow();

// Click on button with text "OK Cancel dialog with a message"
UiObject okCancelDialogButton1 = new UiObject(new UiSelector().text("OK Cancel dialog with a message"));
okCancelDialogButton1.click();
// Click on button with text "OK Cancel dialog with a long message"
// This is where the watcher should save our bacon. Yes, this is a poorly written test case, I know.
// Just go with me here, I'm making a point about Watchers. If the dialog from the previous button
// press is still in place, this new selector will fail to find an object containing that text.
// Because the watcher is there, the dialog gets closed and we're all good.
UiObject okCancelDialogButton2 = new UiObject(new UiSelector().text("OK Cancel dialog with a long message"));
okCancelDialogButton2.click();
}

} 

以下网站有一个如何使用 UI Watcher 的完整示例http://everybodytests.blogspot.com/2012/11/uiautomator-and-watchers-adding-async.html