UIAutomatorTest.java

    @Test
    public void turnOffWifi() throws UiObjectNotFoundException {
        String wiFi = "Wi‑Fi";

        //Get an instance of device and press home button
        UiDevice device = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation());
        device.pressHome();

        //To get the list of all apps, find an object which has description "Apps" and click it
        UiObject2 allApps = device.findObject(By.desc("Apps"));
        allApps.click();

        //Make a scrollable list and find TextView which has Settings written over it and click it.
        UiScrollable appViewsList = new UiScrollable(new UiSelector().scrollable(true));
        appViewsList.setAsHorizontalList();
        appViewsList.scrollTextIntoView("Settings");
        device.findObject(new UiSelector().description("Settings")).click();

        //Again create a Scrollable list and find TextView which has "Wi-Fi" written over it.
        UiScrollable settingList = new UiScrollable(new UiSelector().scrollable(true));
        settingList.scrollTextIntoView(wiFi);
        device.findObject(By.text(wiFi)).click();

        //Find the switch next to it and turn it off.
        device.findObject(By.clazz(Switch.class)).click();
    }