## iOS 'mobile:': 元素滑动(Element swipe) 在一个元素内滑动，需要在滑动方法中指定元素ID。 ```java // 找到要滑动的元素 MobileElement el = (MobileElement) driver.findElement(MobileBy.id("my_id")); // 执行滚动操作(scroll) mobileScrollElementIOS(el, Direction.RIGHT); mobileScrollElementIOS(el, Direction.LEFT); // 执行滑动(swipe) // !注意! 执行与scroll相同的动作时，swipe的方向参数正好相反 mobileSwipeElementIOS(el, Direction.LEFT); mobileSwipeElementIOS(el, Direction.RIGHT); /** * Performs scroll inside element * * @param el the element to scroll * @param dir the direction of scroll * @version java-client: 7.3.0 **/ public void mobileScrollElementIOS(MobileElement el, Direction dir) { System.out.println("mobileScrollElementIOS(): dir: '" + dir + "'"); // always log your actions // Animation default time: // - iOS: 200 ms // final value depends on your app and could be greater final int ANIMATION_TIME = 200; // ms final HashMap<String, String> scrollObject = new HashMap<String, String>(); switch (dir) { case DOWN: // from down to up (! differs from mobile:swipe) case UP: // from up to down (! differs from mobile:swipe) case LEFT: // from left to right (! differs from mobile:swipe) case RIGHT: // from right to left (! differs from mobile:swipe) scrollObject.put("direction", dir.name().toLowerCase()); break; default: throw new IllegalArgumentException("mobileScrollElementIOS(): dir: '" + dir + "' NOT supported"); } scrollObject.put("element", el.getId()); try { driver.executeScript("mobile:scroll", scrollObject); // swipe faster then scroll Thread.sleep(ANIMATION_TIME); // always allow swipe action to complete } catch (Exception e) { System.err.println("mobileScrollElementIOS(): FAILED\n" + e.getMessage()); return; } } /** * Performs swipe inside element * * @param el the element to swipe * @param dir the direction of swipe * @version java-client: 7.3.0 **/ public void mobileSwipeElementIOS(MobileElement el, Direction dir) { System.out.println("mobileSwipeElementIOS(): dir: '" + dir + "'"); // always log your actions // Animation default time: // - iOS: 200 ms // final value depends on your app and could be greater final int ANIMATION_TIME = 200; // ms final HashMap<String, String> scrollObject = new HashMap<String, String>(); switch (dir) { case DOWN: // from up to down (! differs from mobile:scroll) case UP: // from down to up (! differs from mobile:scroll) case LEFT: // from right to left (! differs from mobile:scroll) case RIGHT: // from left to right (! differs from mobile:scroll) scrollObject.put("direction", dir.name().toLowerCase()); break; default: throw new IllegalArgumentException("mobileSwipeElementIOS(): dir: '" + dir + "' NOT supported"); } scrollObject.put("element", el.getId()); try { driver.executeScript("mobile:swipe", scrollObject); Thread.sleep(ANIMATION_TIME); // 始终运行滑动动作执行完毕 } catch (Exception e) { System.err.println("mobileSwipeElementIOS(): FAILED\n" + e.getMessage()); return; } } ```