如何在iOS 6中实现可拖动的UIButton？

我一直在尝试通过覆盖touchesMoved方法在iOS中实现可拖动的UIButton。 按钮出现了，但是我无法拖动它。我在这里遗漏了什么？

这是我的.h文件

 @interface ButtonAnimationViewController : UIViewController
 @property (weak, nonatomic) IBOutlet UIButton *firstButton;

和.m文件

@implementation ButtonAnimationViewController

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [touches anyObject];
CGPoint pointMoved = [touch locationInView:self.view];
self.firstButton.frame = CGRectMake(pointMoved.x, pointMoved.y, 73, 44);

}

---

这里有一个使用UIPanGestureRecognizer的完全工作的按钮拖动示例，我认为这更容易。我在发布代码之前测试了它。如果您还有任何问题，请告诉我：

@interface TSViewController ()

@property (nonatomic, strong) UIButton *firstButton;

@end

@implementation TSViewController

- (void)viewDidLoad
{
    [super viewDidLoad];

    // this code is just to create and configure the button
    self.firstButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [self.firstButton setTitle:@"Button" forState:UIControlStateNormal];
    self.firstButton.frame = CGRectMake(50, 50, 300, 40);
    [self.view addSubview:self.firstButton];

    // Create the Pan Gesture Recognizer and add it to our button
    UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(dragging:)];
    [self.firstButton addGestureRecognizer:panGesture];
}

// this method will be called whenever the user wants to drag the button
-(void)dragging:(UIPanGestureRecognizer*)panGesture {

    // if is not our button, return
    if (panGesture.view != self.firstButton) {
        return;
    }

    // if the gesture was 'recognized'...
    if (panGesture.state == UIGestureRecognizerStateBegan || panGesture.state == UIGestureRecognizerStateChanged) {

        // get the change (delta)
        CGPoint delta = [panGesture translationInView:self.view];
        CGPoint center = self.firstButton.center;
        center.x += delta.x;
        center.y += delta.y;

        // and move the button
        self.firstButton.center = center;

        [panGesture setTranslation:CGPointZero inView:self.view];
    }
}

@end

---

希望有帮助

你能在TouchsMoved中记录你的x和y吗？我试着注销这个位置…结果TouchsMoved方法根本没有执行。这就是我想的，你的ButtonImationViewController是其他控制器的子控制器吗？不…只是普通的UIViewController触摸…代码在UIView中，而不是UIViewController中。您需要在UIButton或UIView子类中处理此问题。平移手势识别器更适合这个用途。比一吨重的路易斯…它就像一个符咒。只是出于好奇，我做错了什么？老实说，我不确定。随着手势识别器的引入，现在我几乎从不使用触摸。。。方法。我想我需要看看你剩下的代码。我很高兴这对你有用，谢谢你接受了答案。。。我想我现在必须研究手势识别器。