How to use actions or do scroll in app in Java?

Question

TouchAction is deprecated. Any pointers for new usage to do vertical Scroll? Below code used. But not working as TouchAction is deprecated.

Dimension dimension =driver.manage().window().getSize();
int start_x=(int) (dimension.width*0.5); 
int start_y=(int) (dimension.height*0.9); 
int end_x=(int) (dimension.width*0.2); 
int end_y=(int) (dimension.height*0.1); 
TouchAction touch =new TouchAction(driver); 
touch.press(PointOption.point(start_x,start_y))
   .waitAction(WaitOptions.waitOptions(Duration.ofSeconds(1)))
   .moveTo(PointOption.point(end_x, end_y))
   .release()
   .perform(); 
Thread.sleep(3000); 
dimension =driver.manage().window().getSize(); 
start_x=(int) (dimension.width*0.2); 
start_y=(int) (dimension.height*0.2); 
end_x=(int) (dimension.width*0.5); 
end_y=(int) (dimension.height*0.8); 
touch =new TouchAction(driver); 
touch.press(PointOption.point(start_x,start_y))
    .waitAction(WaitOptions.waitOptions(Duration.ofSeconds(1)))
    .moveTo(PointOption.point(end_x, end_y))
    .release()
    .perform();

Answer 1

In Selenium 4/Appium 8 TouchActions replaced with W3C actions.

http://appium.io/docs/en/commands/interactions/actions/

For your example:

W3cActions Util Class

import org.openqa.selenium.Point
import org.openqa.selenium.interactions.PointerInput
import org.openqa.selenium.interactions.Sequence
import static java.time.Duration.ofMillis
import static org.openqa.selenium.interactions.PointerInput.Kind.TOUCH
import static org.openqa.selenium.interactions.PointerInput.MouseButton.LEFT
import static org.openqa.selenium.interactions.PointerInput.Origin.viewport

public class W3cActions {

    private final static PointerInput FINGER = new PointerInput(TOUCH, 'finger');

    public static void doSwipe(AppiumDriver driver, Point start, Point end, int duration) {
        Sequence swipe = new Sequence(FINGER, 1)
                .addAction(FINGER.createPointerMove(ofMillis(0), viewport(), start.getX(), start.getY()))
                .addAction(FINGER.createPointerDown(LEFT.asArg()))
                .addAction(FINGER.createPointerMove(ofMillis(duration), viewport(), end.getX(), end.getY()))
                .addAction(FINGER.createPointerUp(LEFT.asArg()));
        driver.perform(Arrays.asList(swipe));
    }

    public static void doTap(AppiumDriver driver, Point point, int duration) {
        Sequence tap = new Sequence(FINGER, 1)
                .addAction(FINGER.createPointerMove(ofMillis(0), viewport(), point.getX(), point.getY()))
                .addAction(FINGER.createPointerDown(LEFT.asArg()))
                .addAction(new Pause(FINGER, ofMillis(duration)))
                .addAction(FINGER.createPointerUp(LEFT.asArg()));
        driver.perform(Arrays.asList(tap));
    }

}

Swipe

Dimension dimension = driver.manage().window().getSize();
Point start = new Point((int)(dimension.width*0.5), (int)(dimension.height*0.9));
Point end = new Point((int)(dimension.width*0.2), (int)(dimension.height*0.1));
W3cActions.doSwipe(driver, start, end, 1000);  //with duration 1s

Thread.sleep(3000); 

start = new Point((int)(dimension.width*0.2), (int)(dimension.height*0.2));
end = new Point((int)(dimension.width*0.5), (int)(dimension.height*0.8)); 
W3cActions.doSwipe(driver, start, end, 1000); //with duration 1s

Tap

Dimension dimension = driver.manage().window().getSize();
Point forTap = new Point((int)(dimension.width*0.5), (int)(dimension.height*0.9));
W3cActions.doTap(driver, forTap, 200); //with duration 200ms