How to perform scroll in android native app with javascript

Question

I am using appium and webdriverIO to automate android native app. I need to perform scroll down and i have used

ele.scrollIntoView(true) //this returns not yet implemented error

is there any other way to scroll down?

Answer 1

I have find a way to perform swipe down by calling JsonWireProtocol api directly from my code. https://github.com/SeleniumHQ/selenium/wiki/JsonWireProtocol

here is my code

module.exports.scrollAndroid = function (ele) {
    console.log('driver.sessionID = ', driver.sessionId);
    while (!$(ele).isDisplayed()) { . //$(ele)=$(//xpath or any other attribute)
        this.scrollAPICall();
        driver.pause(3000);
    }

};
module.exports.scrollAPICall = function () {
    var XMLHttpRequest = require("xmlhttprequest").XMLHttpRequest;
    var xhttp = new XMLHttpRequest();
    xhttp.onreadystatechange = function () {
        console.log("result status >> ", this.status);
        console.log("result text >> ", this.responseText);
    };

    url1 = `http://127.0.0.1:4723/wd/hub/session/${driver.sessionId}/touch/flick`;
    xhttp.open('POST', url1);
    console.log("URL >> ", url1)
    xhttp.setRequestHeader("Content-Type", "application/json");
    xhttp.setRequestHeader("charset", "UTF-8");
    xhttp.send(JSON.stringify({
        xspeed: 10,
        yspeed: -100,
    }));

if you want to scroll up then give yspeed as + value. ex:100