appium python-client代码分析（三）

分析下一些元素：element

https://github.com/appium/python-client/blob/master/appium/webdriver/webelement.py

#!/usr/bin/env python# Licensed under the Apache License, Version 2.0 (the "License");# you may not use this file except in compliance with the License.# You may obtain a copy of the License at##     http://www.apache.org/licenses/LICENSE-2.0## Unless required by applicable law or agreed to in writing, software# distributed under the License is distributed on an "AS IS" BASIS,# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.# See the License for the specific language governing permissions and# limitations under the License.from .mobilecommand import MobileCommand as Commandfrom selenium.webdriver.common.by import Byfrom selenium.webdriver.remote.webelement import WebElement as SeleniumWebElementclass WebElement(SeleniumWebElement):    def find_element_by_ios_uiautomation(self, uia_string):        """Finds an element by uiautomation in iOS.        :Args:         - uia_string - The element name in the iOS UIAutomation library        :Usage:            driver.find_element_by_ios_uiautomation('.elements()[1].cells()[2]')        """        return self.find_element(by=By.IOS_UIAUTOMATION, value=uia_string)    def find_elements_by_ios_uiautomation(self, uia_string):        """Finds elements by uiautomation in iOS.        :Args:         - uia_string - The element name in the iOS UIAutomation library        :Usage:            driver.find_elements_by_ios_uiautomation('.elements()[1].cells()[2]')        """        return self.find_elements(by=By.IOS_UIAUTOMATION, value=uia_string)    def find_element_by_ios_predicate(self, predicate_string):        """Find an element by ios predicate string.        :Args:         - predicate_string - The predicate string        :Usage:            driver.find_element_by_ios_predicate('label == "myLabel"')        """        return self.find_element(by=By.IOS_PREDICATE, value=predicate_string)    def find_elements_by_ios_predicate(self, predicate_string):        """Finds elements by ios predicate string.        :Args:         - predicate_string - The predicate string        :Usage:            driver.find_elements_by_ios_predicate('label == "myLabel"')        """        return self.find_elements(by=By.IOS_PREDICATE, value=predicate_string)    def find_element_by_ios_class_chain(self, class_chain_string):        """Find an element by ios class chain string.        :Args:         - class_chain_string - The class chain string        :Usage:            driver.find_element_by_ios_class_chain('XCUIElementTypeWindow/XCUIElementTypeButton[3]')        """        return self.find_element(by=By.IOS_CLASS_CHAIN, value=class_chain_string)    def find_elements_by_ios_class_chain(self, class_chain_string):        """Finds elements by ios class chain string.        :Args:         - class_chain_string - The class chain string        :Usage:            driver.find_elements_by_ios_class_chain('XCUIElementTypeWindow[2]/XCUIElementTypeAny[-2]')        """        return self.find_elements(by=By.IOS_CLASS_CHAIN, value=class_chain_string)    def find_element_by_android_uiautomator(self, uia_string):        """Finds element by uiautomator in Android.        :Args:         - uia_string - The element name in the Android UIAutomator library        :Usage:            driver.find_element_by_android_uiautomator('.elements()[1].cells()[2]')        """        return self.find_element(by=By.ANDROID_UIAUTOMATOR, value=uia_string)    def find_elements_by_android_uiautomator(self, uia_string):        """Finds elements by uiautomator in Android.        :Args:         - uia_string - The element name in the Android UIAutomator library        :Usage:            driver.find_elements_by_android_uiautomator('.elements()[1].cells()[2]')        """        return self.find_elements(by=By.ANDROID_UIAUTOMATOR, value=uia_string)    def find_element_by_accessibility_id(self, id):        """Finds an element by accessibility id.        :Args:         - id - a string corresponding to a recursive element search using the         Id/Name that the native Accessibility options utilize        :Usage:            driver.find_element_by_accessibility_id()        """        return self.find_element(by=By.ACCESSIBILITY_ID, value=id)    def find_elements_by_accessibility_id(self, id):        """Finds elements by accessibility id.        :Args:         - id - a string corresponding to a recursive element search using the         Id/Name that the native Accessibility options utilize        :Usage:            driver.find_elements_by_accessibility_id()        """        return self.find_elements(by=By.ACCESSIBILITY_ID, value=id)    def set_text(self, keys=''):        """Sends text to the element. Previous text is removed.        Android only.        :Args:         - keys - the text to be sent to the element.        :Usage:            element.set_text('some text')        """        data = {            'id': self._id,            'value': [keys]        }        self._execute(Command.REPLACE_KEYS, data)        return self    @property    def location_in_view(self):        """Gets the location of an element relative to the view.        :Usage:            location = element.location_in_view        """        return self._execute(Command.LOCATION_IN_VIEW)['value']    def set_value(self, value):        """Set the value on this element in the application        """        data = {            'id': self.id,            'value': [value],        }        self._execute(Command.SET_IMMEDIATE_VALUE, data)        return self    def clear(self):        """Clears text.        """        data = {'id': self.id}        self._execute(Command.CLEAR, data)return self