如何使用appium在android中触发条形码扫描键？

import io.appium.java_client.android.AndroidDriver;
import io.appium.java_client.android.AndroidKeyCode;
import org.openqa.selenium.remote.DesiredCapabilities;
import java.net.URL;

public class BarcodeScannerTest {
    public static void main(String[] args) {
        try {
            DesiredCapabilities capabilities = new DesiredCapabilities();
            capabilities.setCapability("deviceName", "Android Device");
            capabilities.setCapability("platformName", "Android");
            capabilities.setCapability("appPackage", "com.example.barcodeScanner");
            capabilities.setCapability("appActivity", "com.example.barcodeScanner.MainActivity");

            AndroidDriver driver = new AndroidDriver(new URL("http://127.0.0.1:4723/wd/hub"), capabilities);
            
            // 触发条形码扫描键
            driver.pressKeyCode(AndroidKeyCode.KEYCODE_BUTTON_L1);

            // 其他测试步骤...

            driver.quit();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}