Appium：找不到可見的元素

Question

我目前正在嘗試自動化登錄流。幸福路徑的編碼正常工作。我現在正在編碼無效憑證。

我的代碼看起來與此類似：

driver.findElement(By.xpath("//android.widget.Button[@text='Password']").click; 
//At this point the button is pressed 
Thread.sleep(10000); //Screen with the following item is definitely visible 
MobileElement actual = (MobileElement)(new WebDriverWait(driver, 30).until(ExpectedConditions.presenceOfElementLocated(By.xpath("//android.view.View[@content-desc='Invalid user ID or password. Try again']")))); 
//Note when I print out the xml and use xpathfinder I get 1 response 

我得到這樣的響應：

Am element could not be located on the page using the given search parameters. (WARNING: The server did not provide any stacktrace information) 

Answer 1

所以問題是getAttribute("content-desc")不是appium正在尋找的東西。相反使用getAttribute("name")將返回所需的值（又名content-desc）。

Answer 2

你可以嘗試一口流利的等待，而不是正常的webdriver等待

public void waitForElement(final By by, 
      int timeInSeconds,WebDriver driver) { 
     Wait<WebDriver> wait = FluentWait<WebDriver>(driver) 
      .withTimeout(timeInSeconds, TimeUnit.SECONDS) 
      .pollingEvery(500, TimeUnit.MILLISECONDS) 
      .ignoring(NoSuchElementException.class); 

     wait.until(new Function<WebDriver, Boolean>() { 
      public Boolean apply(WebDriver driver) { 
       List<WebElement> elements = driver.findElements(by); 
       if (elements.size() > 0) { 

          return true; 
         } 
       } 
       return false; 
      } 
     }); 
    } 

然後使來電

waitForElement(By.xpath("//android.view.View[@content-desc='Invalid user ID or password. Try again']", 60,driver)