locator strategies
Finding and interacting with elements
Appium supports a subset of the WebDriver locator strategies://使用WebDriver定位方式
- find by “class” (i.e., ui component type)
- find by “xpath” (i.e., an abstract representation of a path to an element, with certain constraints)
Appium additionally supports some of the Mobile JSON Wire Protocol locator strategies//使用UIAutomation或者UiAutomator的定位方式。
-ios uiautomation: a string corresponding to a recursive element search using the UIAutomation library (iOS-only)-android uiautomator: a string corresponding to a recursive element search using the UiAutomator Api (Android-only)accessibility id: a string corresponding to a recursive element search using the Id/Name that the native Accessibility options utilize.
Issues
There’s a known issue with table cell elements becoming invalidated before there’s time to interact with them. We’re working on a fix
Using The Appium Inspector To Locate Elements
Appium provides you with a neat tool that allows you to find the the elements you’re looking for without leaving the Appium app. With the Appium Inspector (the i symbol next to the start test button) you can find any element and it’s name by either clicking the element on the preview page provided, or locating it in the UI navigator.//appium的inspector，只有iOS上能用。安卓上可以使用Selendroid提供的inspector。
Overview
The Appium inspector has a simple layout, complete with a UI navigator, a preview, and record and refresh buttons, and interaction tools.
Example
After launching the Appium Inspector (you can do this by clicking the small “i” button in the top right of the app) you can locate any element in the preview. In this test, I’m looking for the id of the “show alert” button.
To find the id of this button, I click the “show alert” button in the inspector preview. The Appium inspector then highlights the element in the UI navigator, showing me both the id and element type of the button I clicked.
