有时很难为问题提出准确的标题......但是这里有:
我有一个viewcontroller,我想使用UISwipeGestureRecognizer重新加载新数据,我想基本上说“如果UISwipeGestureRecognizer方向是向上的,x = x + 1(我也有ax = x - 1为一个向下有些图像依赖于传递的整数,它们也会自动加载。理想情况下,它看起来好像滑动动画到新页面,但实际上它将是具有不同数据的相同viewcontroller。
很难以连贯的方式提出这个问题,但我希望有人可以得到我想要做的事情的要点。如果没有,请道歉。谢谢!
答案 0 :(得分:0)
在主视图中添加两个滑动手势识别器,一个用于检测向上滑动,另一个用于向下滑动,如下所示:
class ViewController: UIViewController {
// Your gesture recognizers:
var swipeUpGestureRecognizer = UISwipeGestureRecognizer()
var swipeDownGestureRecognizer = UISwipeGestureRecognizer()
// Your x variable:
var x = 0
override func viewDidLoad() {
super.viewDidLoad()
// Setup your gesture recognizers:
swipeUpGestureRecognizer.direction = .up
swipeUpGestureRecognizer.addTarget(self, action: #selector(swipeUpAction))
swipeDownGestureRecognizer.direction = .down
swipeDownGestureRecognizer.addTarget(self, action: #selector(swipeDownAction))
// Inserting the gesture recognizers into the main view:
self.view?.addGestureRecognizer(swipeUpGestureRecognizer)
self.view?.addGestureRecognizer(swipeDownGestureRecognizer)
}
// Methods:
func swipeUpAction() {
// Update your data here!
x = x + 1
}
func swipeDownAction() {
// Update your data here!
x = x - 1
}
}
这应该工作得很好!祝好运!