#1 楼 @lihuazhang 好的，主要我也搜索了，想看看有没有更好的解决办法，下次注意

@ding7473417 @chenhengjie123 @wang04170 在对混合型 APP 进行测试的时候，嵌入到 App 中的第三方 WebView，在查上下文信息的时候，找不到对应的 WebView。用 get_contexts 获取所有 context，也只获取到了 NATIVE_APP。没办法切换到 webview，我要获取里面的元素，该怎么办呢？

@ding7473417 @wang04170 @chenhengjie123 谢谢，问题顺利解决，好开心，谢谢谢谢

#1 楼 @ding7473417 我查了一下，说是要用 4.4 的，我用模拟器，4.4.2 的也是报这个错

#1 楼 @ding7473417 为什么我一用这个 driver.context(“WEBVIEW”)，就报错呢？org.openqa.selenium.NoSuchElementException: An element could not be located on the page using the given search parameters. (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 10.62 seconds
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html
Build info: version: '2.41.0', revision: '3192d8a6c4449dc285928ba024779344f5423c58', time: '2014-03-27 11:29:39'
System info: host: '123TY-20150623B', ip: '172.16.18.133', os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.6.0_38-ea'
Session ID: 1d9d6db2-062c-4cea-a309-e87df1551ce9
Driver info: io.appium.java_client.AppiumDriver
Capabilities [{platform=WINDOWS, app=D:\andriod\test\apps\智农通 V2.2.5.apk, javascriptEnabled=true, appActivity=com.dbn.OAConnect.UI.LauncherSwitchActivity, browserName=, networkConnectionEnabled=true, desired={platformVersion=4.3, platform=WINDOWS, app=D:\andriod\test\apps\智农通 V2.2.5.apk, platformName=Android, deviceName=test, browserName=, appActivity=com.dbn.OAConnect.UI.LauncherSwitchActivity, appPackage=com.dbn.OAConnect}, locationContextEnabled=false, appPackage=com.dbn.OAConnect, platformVersion=4.4.2, databaseEnabled=false, deviceName=emulator-5554, platformName=Android, webStorageEnabled=false, warnings={}, takesScreenshot=true}]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:193)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:145)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:595)
at io.appium.java_client.AppiumDriver.execute(AppiumDriver.java:76)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:348)
at org.openqa.selenium.remote.RemoteWebDriver.findElementById(RemoteWebDriver.java:389)
at org.openqa.selenium.By$ById.findElement(By.java:214)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:340)
at com.Nxin.test.TestMall.test(TestMall.java:130)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

#20 楼 @vincent 哦哦，uiautomatorviewer 里没有显示 source-id,我获得的那个 id 是在代码里看到的

#14 楼 @vincent 你的意思是这样写吗？dr.findElement(By.id("com.chnMicro.MFExchange:id/tab_account")).click();
这样写不行呢

#16 楼 @pianai 我之前也是用的 swipe 也是不行，但是不知道为什么，后来我这样写的，就可以了 JavascriptExecutor js = (JavascriptExecutor) dr;
HashMap swipeObj = new HashMap();
swipeObj.put("startX", 420.0);
swipeObj.put("startY", 400.00);
swipeObj.put("endX", 30.0);
swipeObj.put("endY", 400.0);

swipeObj.put("duration", 0.4);
// 滑动
for (int i = 0; i < 3; i++) {
try {
js.executeScript("mobile: swipe", swipeObj);
} catch (WebDriverException ex) {
ex.printStackTrace();
}
}

#10 楼 @xuxu 请问那我该怎么找呢？classname 相同的元素有太多个了，我怎么能知道我要找的是哪个呢？

#7 楼 @xuxu 我有源代码，然后通过源代码的 id 去找，为什么报错提示找不到呢？

我是这样写的 driver.findElementById("tab_account");，对吗？