Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

DragNDrop fails with null object reference

See original GitHub issue

@dpgraham @mykola-mokhnach

Appium Server: Latest Master Java-Client: 6.1.0

MobileElement dragMe = (MobileElement) new WebDriverWait(driver, 30).until(ExpectedConditions
                .elementToBeClickable(MobileBy.AccessibilityId("dragMe")));
 WebElement source = dragMe;
WebElement target = driver.findElementByAccessibilityId("dropzone");
Actions actionBuilder = new Actions(driver);
Action dragAndDropAction = actionBuilder.clickAndHold(source).moveToElement(target, 1, 1)                .release(target).build();
dragAndDropAction.perform();

Server logs: https://gist.github.com/saikrishna321/e0681990382ccde8d6fbc9635170d063

Issue Analytics

State:
Created 5 years ago
Comments:18 (18 by maintainers)

Top GitHub Comments

1reaction

saikrishna321commented, Aug 26, 2018

@dpgraham Fixes works well…

        Point source = dragMe.getCenter();
        Point target = driver.findElementByAccessibilityId("dropzone").getCenter();
        PointerInput finger = new PointerInput(PointerInput.Kind.TOUCH, "finger");
        Sequence dragNDrop = new Sequence(finger, 1);
        dragNDrop.addAction(finger.createPointerMove(Duration.ofSeconds(1),
                PointerInput.Origin.viewport(), source.x, source.y));
        dragNDrop.addAction(finger.createPointerDown(PointerInput.MouseButton.MIDDLE.asArg()));
        dragNDrop.addAction(finger.createPointerMove(Duration.ofSeconds(1),
                PointerInput.Origin.viewport(),
                target.x, target.y));
        dragNDrop.addAction(finger.createPointerUp(PointerInput.MouseButton.MIDDLE.asArg()));
        driver.perform(Arrays.asList(dragNDrop));

1reaction

mykola-mokhnachcommented, Aug 24, 2018

The chain is for sure not the one, which is supposed to work. Try the approach proposed by @jlipps in https://appiumpro.com/editions/29