该方是基于uiautomator2如下版本进行验证的：
PS C:\windows\system32> pip show uiautomator2 Name: uiautomator2 Version: 1.2.2 Summary: Python Wrapper for Android UiAutomator2 test tool Home-page: https://github.com/codeskyblue/uiautomator2 Author: codeskyblue Author-email: codeskyblue@gmail.com License: MIT Location: c:\program files\python36\lib\site-packages Requires: six, progress, whichcraft, logzero, lxml, adbutils, retry, Pillow, requests, humanize Required-by: weditor, atx
下面贴出githup上关于该方法的使用
1 Watcher 2 You can register watchers to perform some actions when a selector does not find a match. 3 4 Register Watcher 5 6 When a selector can not find a match, uiautomator2 will run all registered watchers. 7 8 Click target when conditions match 9 d.watcher("AUTO_FC_WHEN_ANR").when(text="ANR").when(text="Wait") \ 10 .click(text="Force Close") 11 # d.watcher(name) ## creates a new named watcher. 12 # .when(condition) ## the UiSelector condition of the watcher. 13 # .click(target) ## perform click action on the target UiSelector. 14 There is also a trick about click. You can use click without arguments. 15 16 d.watcher("ALERT").when(text="OK").click() 17 # Same as 18 d.watcher("ALERT").when(text="OK").click(text="OK") 19 Press key when a condition becomes true 20 d.watcher("AUTO_FC_WHEN_ANR").when(text="ANR").when(text="Wait") \ 21 .press("back", "home") 22 # d.watcher(name) ## creates a new named watcher. 23 # .when(condition) ## the UiSelector condition of the watcher. 24 # .press(<keyname>, ..., <keyname>.() ## press keys one by one in sequence. 25 Check if the named watcher triggered 26 27 A watcher is triggered, which means the watcher was run and all its conditions matched. 28 29 d.watcher("watcher_name").triggered 30 # true in case of the specified watcher triggered, else false 31 Remove a named watcher 32 33 # remove the watcher 34 d.watcher("watcher_name").remove() 35 List all watchers 36 37 d.watchers 38 # a list of all registered watchers 39 Check for any triggered watcher 40 41 d.watchers.triggered 42 # true in case of any watcher triggered 43 Reset all triggered watchers 44 45 # reset all triggered watchers, after that, d.watchers.triggered will be false. 46 d.watchers.reset() 47 Remove watchers 48 49 # remove all registered watchers 50 d.watchers.remove() 51 # remove the named watcher, same as d.watcher("watcher_name").remove() 52 d.watchers.remove("watcher_name") 53 Force to run all watchers 54 55 # force to run all registered watchers 56 d.watchers.run()
注：里面涉及的watcher_name可以自定义，可以做到见名知意即可
watcher的使用是要先注册（第9行至20行均是注册watcher的方法），然后激活watcher(第56行)，注意这个激活方法只是一个瞬时激活，就是说使用之后即销毁，不会一直存于后台。那这样的话在实际的使用场景中怎么使用这个功能呢，下面看一段脚本 1 # -*- coding:utf-8 -*-
2 3 import uiautomator2 as u2 4 import time 5 6 7 d = u2.connect() 8 cfg = MTBFConfig() 9 package = cfg.getstr("Admit", "pkg", "config") 10 PACKAGELIST = package.split(",") 11 print(PACKAGELIST) 12 d.watcher("ALLOW").when(text="ALLOW").click(text="ALLOW") 13 #d.watchers.run() 14 print(d.watchers) 15 16 time.sleep(2) 17 pkglen = len(PACKAGELIST) 18 print(("There are %d package for test") %pkglen) 19 20 class Admit(object): 21 22 def main(self): 23 for i in range(pkglen): 24 k = 0 25 for j in range(5): 26 if d.info['currentPackageName'] != PACKAGELIST[i]: 27 d.app_start(PACKAGELIST[i]) 28 print(PACKAGELIST[i]) 29 time.sleep(1) 30 k += 1 31 if k == 3: 32 print("Can not enter "+ str(PACKAGELIST[i])) 33 return False 34 if PACKAGELIST[i] == 'com.google.android.contacts': 35 print("hello") 36 if d(description = "Open navigation drawer").exists(timeout = 5): 37 d(description = "Open navigation drawer").click() 38 39 if d(text = "Settings").exists(timeout = 5): 40 d(text = "Settings").click() 41 42 if d(resourceId="android:id/title", text = "Import").exists(timeout=5): 43 d(resourceId="android:id/title", text = "Import").click() 44 time.sleep(3) 45 46 if d(resourceId = "android:id/button1", text = "OK").exists(timeout = 5): 47 d(resourceId = "android:id/button1", text = "OK").click() 48 time.sleep(1) 49 d.watchers.run() //在上面OK点击之后会弹出一个权限访问的许可，所以这个时候需要激活一次watcher把弹框关掉，以便不影响后续测试，所以就一个原则，哪里可能会有弹框就在哪里激活watcher 50 51 52 53 if __name__=="__main__": 54 ad = Admit() 55 ad.main()