长按 改变位置 实现方法

 UILongPressGestureRecognizer *longPress = [[[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(photoLongPressed:)] autorelease];
        longPress.numberOfTouchesRequired = 1;
        [puzzlesScroll addGestureRecognizer:longPress];
        [puzzlesScroll release];

- (void)photoLongPressed:(UILongPressGestureRecognizer *)gesture
{
    PuzzlesScrollVIew *layoutPhotoView = (id)[gesture view];

    if(gesture.state == UIGestureRecognizerStateBegan)          //当前状态的手势识别
    {
        startTouchPos = [gesture locationInView:puzzleBackground];
        CGRect photoFrame = layoutPhotoView.frame;
        startTouchPos.x -= photoFrame.origin.x;
        startTouchPos.y -= photoFrame.origin.y;
        srcRect = photoFrame;
        destRect = photoFrame;
        [puzzleBackground bringSubviewToFront:layoutPhotoView];
        layoutPhotoView.layer.borderWidth = 2.0;
        layoutPhotoView.layer.borderColor = [UIColor yellowColor].CGColor;

        [UIView beginAnimations:nil context:nil];
        [UIView setAnimationDuration:0.3];
        [UIView commitAnimations];

        self.view.userInteractionEnabled = NO;
    }
    else if(gesture.state == UIGestureRecognizerStateEnded || gesture.state == UIGestureRecognizerStateCancelled)//识别已收到确认涉及的姿态结束 与 识别已收到涉及取消的姿态
    {
        [UIView beginAnimations:nil context:nil];
        [UIView setAnimationDuration:0.3];
        layoutPhotoView.frame = destRect;
        [layoutPhotoView restoreAll];
        layoutPhotoView.layer.borderColor = [UIColor whiteColor].CGColor;
        layoutPhotoView.layer.borderWidth = 1.0;
        [UIView commitAnimations];

        self.view.userInteractionEnabled = YES;
    }
    else if(gesture.state == UIGestureRecognizerStateChanged)       //识别作为一个手势的变化
    {
        CGRect photoFrame = layoutPhotoView.frame;
        CGPoint touchPoint = [gesture locationInView:puzzleBackground];
        photoFrame.origin.x = touchPoint.x - startTouchPos.x;
        photoFrame.origin.y = touchPoint.y - startTouchPos.y;
        layoutPhotoView.frame = photoFrame;

        [UIView beginAnimations:nil context:nil];
        [UIView setAnimationDuration:0.3];
        for(PuzzlesScrollVIew * otherLayoutPhotoView in scrollimgViewArr)
        {
            if(otherLayoutPhotoView != layoutPhotoView && CGRectContainsPoint(otherLayoutPhotoView.frame, touchPoint))
            {
                destRect = otherLayoutPhotoView.frame;
                otherLayoutPhotoView.frame = srcRect;
                //交换对象
                [scrollimgViewArr exchangeObjectAtIndex:[scrollimgViewArr indexOfObject:layoutPhotoView] withObjectAtIndex:[scrollimgViewArr indexOfObject:otherLayoutPhotoView]];
                [otherLayoutPhotoView restoreAll];
                srcRect = destRect;

                otherLayoutPhotoView.layer.borderColor = [UIColor whiteColor].CGColor;
                otherLayoutPhotoView.layer.borderWidth = 1.0;
                break;
            }
        }
        [UIView commitAnimations];
    }
}