我一般用这种方法来实现UIButton可移动;
[button addTarget:self action:@selector(dragMoving:withEvent:) forControlEvents:UIControlEventTouchDragInside];
但它会同时触发 touchUpInside 事件,我需要 touchUpInside 事件来做一些其他的事情。
那么有人知道如何避免这种情况吗?
非常感谢;
使用下面的这些代码来解决它;
[button addTarget:self action:@selector(touchDown:withEvent:) forControlEvents:UIControlEventTouchDown];
[button addTarget:self action:@selector(touchDragInside:withEvent:) forControlEvents:UIControlEventTouchDragInside];
[button addTarget:self action:@selector(touchUpInside:withEvent:) forControlEvents:UIControlEventTouchUpInside];
- (void) touchUpInside :(UIControl*)c withEvent:ev{
NSLog(@"touch Up inside");
if (count) {
NSLog(@"here I can do something about clicking event");
}
}
- (void) touchDown:(UIControl*)c withEvent:ev{
NSLog(@"touch Down");
count = YES;
}
-(void) touchDragInside:(UIControl*)c withEvent:ev{
NSLog(@"touch drag inside");
c.center = [[[ev allTouches] anyObject] locationInView:self.view];
count = NO;
}