如何使用Java滚动到Appium的最新版本中的特定元素？

Question

我的元素在屏幕上不可见但是当我使用.isDisplayed（）方法时我得到了我的代码如下

Point xy = send_mail.getCoordinates().onScreen();
        int a=xy.getX();
        int b =xy.getY();
        System.out.println("a" + xy.getX() + "b" + xy.getY());
        TouchAction touchAction = new TouchAction(driver);
        touchAction.moveTo(a, b);

send_mail是要查找的元素的xpath。这是tracelog的帮助！我不能使用while循环来迭代，直到元素没有显示，因为它被认为是可见的app appium。

java.lang.UnsupportedOperationException: Not supported yet.
    at org.openqa.selenium.remote.RemoteWebElement$1.onScreen(RemoteWebElement.java:402)
    at testcases.TestcaseFunctionsAndroid.offlinesearchservice(TestcaseFunctionsAndroid.java:764)
    at testcases.TestCasesAndroid.TC9(TestCasesAndroid.java:279)
    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.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:639)
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:816)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1124)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)
    at org.testng.TestRunner.privateRun(TestRunner.java:774)
    at org.testng.TestRunner.run(TestRunner.java:624)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:359)
    at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:354)
    at org.testng.SuiteRunner.privateRun(SuiteRunner.java:312)
    at org.testng.SuiteRunner.run(SuiteRunner.java:261)
    at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
    at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
    at org.testng.TestNG.runSuitesSequentially(TestNG.java:1215)
    at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
    at org.testng.TestNG.run(TestNG.java:1048)
    at org.testng.remote.AbstractRemoteTestNG.run(AbstractRemoteTestNG.java:114)
    at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:251)
    at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:77)