APP 定位防止页面未跳转导致元素无法定位 -android特有的wait_activity

wait_activity(self, activity, timeout, interval=1):

    等待指定的activity出现直到超时，interval为扫描间隔1秒

    即每隔几秒获取一次当前的activity
    
    android特有的

    返回的True 或 False

    :Agrs:

     - activity - 需等待的目标 activity

     - timeout - 最大超时时间，单位是s

     - interval - 循环查询时间

    用法:driver.wait_activity(‘.activity.xxx’,5,2)

import time
from appium import webdriver

desired_caps = {
                'platformName': 'Android',
                'deviceName': '30d4e606',
                'platformVersion': '7.1.2',
                'appPackage': 'io.appium.android.apis',
                'appActivity': '.ApiDemos',
                'unicodeKeyboard': True,
                'resetKeyboard': True,
                'noReset':True,
                "chromedriverExecutable" : "D:\driverschromedriver.exe"
                }
driver = webdriver.Remote('http://127.0.0.1:4723/wd/hub', desired_caps)
# 休眠五秒等待页面加载完成
time.sleep(2)
print(driver.contexts)
driver.find_element_by_android_uiautomator('new UiScrollable(new UiSelector().scrollable(true).instance(0)).scrollIntoView(new UiSelector().text("Views").instance(0))').click()
driver.find_element_by_android_uiautomator('new UiScrollable(new UiSelector().scrollable(true).instance(0)).scrollIntoView(new UiSelector().text("WebView").instance(0))').click()
print(driver.current_activity)
#等待activity出现，最多等20秒
driver.wait_activity('.view.WebView1',20)

print(driver.contexts)
#获取当前页面上下文
contexts=driver.contexts
#切进native 进行操作
driver.switch_to.context(contexts[1])
driver.find_element_by_id("i_am_a_textbox").send_keys("hahah")
time.sleep(1)
# driver.find_element_by_id("i am a link").click()
# 切回native
driver.switch_to.context(contexts[0])
title = driver.find_element_by_xpath("//android.widget.TextView[@text='Views/WebView']").text
print(title)

# driver.tap([(1,2),(3,4)],500)