如图，此注册页面是 webview 里的 H5 页面

appium 信息：

info: [debug] [BOOTSTRAP] [debug] Got command of type ACTION
info: [debug] [BOOTSTRAP] [debug] Got command action: find
info: [debug] [BOOTSTRAP] [debug] Finding //android.view.View[@index='1']/android.widget.EditText[@index='1'] using XPATH with the contextId: multiple: true
info: [debug] [BOOTSTRAP] [debug] Failed to locate element. Clearing Accessibility cache and retrying.
info: [debug] [BOOTSTRAP] [debug] Finding //android.view.View[@index='1']/android.widget.EditText[@index='1'] using XPATH with the contextId: multiple: true
info: [debug] [BOOTSTRAP] [debug] Returning result: {"value":[],"status":0}

RobotFramework 的错误信息：

Starting test: Test.注册
20160421 14:01:29.605 : INFO : Clicking element 'name=注册'.
20160421 14:01:34.941 : INFO : Slept 3 seconds
20160421 14:01:34.951 : INFO : Typing text '45588888455' into text field 'xpath=//android.view.View[@index='1']/android.widget.EditText[@index='1']'
20160421 14:01:36.603 : INFO :

20160421 14:01:36.604 : FAIL : ValueError: Element locator 'xpath=//android.view.View[@index='1']/android.widget.EditText[@index='1']' did not match any elements.
Ending test: Test.注册