Uiautomator 2.0之UiWatcher类学习小记

1. 主要功能

使用此方法可以处理中断问题,从而保证测试用例的正常运行。

2. 相关API

API	说明
registerWatcher (String name, UiWatcher watcher)	注册一个监听器，当无法匹配到对象的时候，触发监听器
removeWatcher (String name)	取消之前注册的指定的监听器
resetWatcherTriggers ()	重置已出发过的UiWatcher
runWatchers ()	运行所有的监听器

3.简单示例

3.1 用例代码

 @Test
     public void testCase09() throws InterruptedException {

         final UiObject2 ui = mDevice.findObject(By.text("短信"));
         //注册监听器
         mDevice.registerWatcher("testWatcher", new UiWatcher() {
             @Override
             public boolean checkForCondition() {
                 if(mDevice.hasObject(By.text("联系人"))){
                     ui.click();
                     Log.i("testWatcher", "监听器被触发了");
                     return true;
                 }
                 Log.i("testWatcher", "监听器未被触发");
                 return false;
             }
         });

         //运行用例步骤
         mDevice.wait(Until.findObject(By.text("写短信")), 2000);
         UiObject2 btn = mDevice.findObject(By.text("写短信"));
         btn.click();
         Thread.sleep(2000);
         mDevice.pressBack();

         //重置监听器
         mDevice.resetWatcherTriggers();
         mDevice.wait(Until.findObject(By.text("写短信")), 2000);
         btn.click();
         Thread.sleep(2000);
         mDevice.pressBack();
         Log.i("testWatcher", "重置监听器成功");

         //移除监听器
         mDevice.removeWatcher("testWatcher");
         Log.i("testWatcher", "移除监听器成功");
         mDevice.wait(Until.findObject(By.text("写短信")), 2000);
         btn.click();
         Thread.sleep(2000);
         mDevice.pressBack();

     }

3.2 运行结果

原创：http://blog.csdn.net/swordgirl2011/article/details/51010683