Uiautomator 2.0之UiWatcher类学习小记

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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UiWatcherrunWatchers ()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

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