I’m trying to automate an Android app using Appium on Windows 10 with Java. I included the @AndroidFindBy annotation to locate elements, but my tests are constantly failing with a ‘NoSuchElementException’. The app is built with React Native, and I’m using Appium 7.3.0. I’ve double-checked the element IDs and even tried changing locators, but nothing seems to work. I expected these elements to be found as they appear consistently in the UI. What am I doing wrong with the @AndroidFindBy usage in my Appium tests?
I’ve often run into the same issue with the @AndroidFindBy annotation in Appium, especially when beginning with mobile app automation.
The root cause is usually a mismatch between the element’s actual identifier in the application’s UI and how it’s specified in your code. In React Native apps, the element ID sometimes doesn’t directly map to what’s defined in the code. You should ensure the ID used in the @AndroidFindBy matches exactly with the app’s UI hierarchy.
Here is the snippet that worked for me: java @AndroidFindBy(id = “uniqueElementID”) WebElement myElement;
Make sure the uniqueElementID in the annotation is correct by checking with UIAutomatorViewer. Sometimes, after an app update, IDs might change, and UIAutomatorViewer will give you the exact properties to use as locators.
Another common mistake is not initializing the elements properly. Make sure you use PageFactory.initElements with the AppiumFieldDecorator to initialize the page objects correctly, as shown below:
java
PageFactory.initElements(new AppiumFieldDecorator(driver), this);
This issue can often be version-specific, so ensure you’re using Appium and Java Client versions that are compatible with each other. Keeping this in mind can save you a lot of troubleshooting time.
I had a similar problem when I started with Appium, and fixing it was about addressing a less obvious setup issue.
The @AndroidFindBy annotation needs to be supported by the correct initialization of your page objects. Without proper setup, the code tends to fail silently by not finding elements as expected, leading to a cascading failure in your test logic.
Here’s an example of a proper setup: java public class MyPage { public MyPage(AppiumDriver driver) { PageFactory.initElements(new AppiumFieldDecorator(driver), this); }
@AndroidFindBy(accessibility = "elementAccessibilityID")
WebElement myElement;
}
Ensure that you’ve got your Appium server running correctly, and it’s recognizing connected devices or emulators. The accessibility option in the AndroidFindBy can be more reliable than id or xpath for React Native apps, so it’s worth trying if you face consistent issues.
Sometimes, even the dimensions of the emulator or device can affect tests. Testing on multiple resolutions and screen sizes is a good practice to ensure robustness. React Native might also need distinct approaches, given its cross-platform nature.