问题:
Appium 1.6.4 beta 版本遇到使用 Xpath 报错 InvalidSelector Argument was an invalid selector (e.g. XPath/CSS).
self.driver.find_element_by_xpath("//android.widget.FrameLayout//android.widget.LinearLayout//android.support.v7.widget.RecyclerView[contains(@content-desc:ChinaNet-3eSK,,Wi-Fi signal full.)]").click()