这是长按tableview的头视图的手势方法，代码如下

UILongPressGestureRecognizer *longPress = (UILongPressGestureRecognizer *)sender; //获得长按点在scrollview中的坐标 CGPoint location = [longPress locationInView:self]; //获取长按点在window中的坐标 CGPoint inWindow = [longPress locationInView:self.window]; // 拖拽headView的判断 CGPoint pointOfHeadView = CGPointMake(0, 0); UIView *headview; for (UIView *view in self.listHeaderArray) { CGPoint point = [self convertPoint:location toView:view]; if ([view pointInside:point withEvent:nil]) { pointOfHeadView = point; headview = view; } } static UIView *snapView; static float offsetXoflistView; static float offsetYoflistView; static CADisplayLink *link; static float rollBeginMaxX; static float rollBeginMinX; UIGestureRecognizerState state = longPress.state; switch (state) { case UIGestureRecognizerStateBegan:{ for (UIView *listview in self.arrlists) { if (listview == headview.superview) { _superOFHeadView = listview; } } // 截图操作，截取点击所在的listView snapView = [self customSnapshoFromView:_superOFHeadView]; snapView.alpha = 1.0; // 转化坐标 __block CGPoint listViewCentreInWindow = [self convertPoint:_superOFHeadView.center toView:self.window]; NSLog(@"listView的window坐标：%f---%f",listViewCentreInWindow.x,listViewCentreInWindow.y); //计算该点与手势在window上的偏移量 offsetXoflistView = listViewCentreInWindow.x - inWindow.x; // offsetYoflistView = listViewCentreInWindow.y - inWindow.y; snapView.center = listViewCentreInWindow; //手指移动发生的动画 [self.window addSubview:snapView]; [UIView animateWithDuration:0.5 animations:^{ listViewCentreInWindow.y = inWindow.y; NSLog(@"改变的listView的Y%f",listViewCentreInWindow.y); NSLog(@"listView的中心点在window上的Y：%f",listViewCentreInWindow.y); snapView.center = listViewCentreInWindow; snapView.transform = CGAffineTransformMakeScale(1.0, 1.0); snapView.layer.shadowColor = [UIColor blackColor].CGColor; snapView.layer.shadowOpacity = 0.8f; snapView.layer.shadowRadius = 4.f; snapView.layer.shadowOffset = CGSizeMake(4,4); _superOFHeadView.hidden = YES; } completion:^(BOOL finished) { }]; //判断截图横向滚动的边界 if (CGRectGetMaxX(snapView.frame)>ScreenWidth) { rollBeginMaxX = CGRectGetMaxX(snapView.frame); }else{ rollBeginMaxX = ScreenWidth; } if (CGRectGetMinX(snapView.frame)<0) { rollBeginMinX = CGRectGetMinX(snapView.frame); }else{ rollBeginMinX = 0; } } break; case UIGestureRecognizerStateChanged:{ // 跟随手指移动的截图 offsetXoflistView = listViewCentreInWindow.x - inWindow.x; snapView.center = CGPointMake(inWindow.x+offsetXoflistView, inWindow.y+offsetYoflistView); //判断截图横向滚动的边界 if (CGRectGetMaxX(snapView.frame)<=ScreenWidth) { rollBeginMaxX = ScreenWidth; } if (CGRectGetMinX(snapView.frame)>=0) { rollBeginMinX = 0; } // 当截图超过屏幕 if (CGRectGetMaxX(snapView.frame)>rollBeginMaxX) { // 起始点 NSInteger startIndex = [self StartIndexOfView:superOFHeadView singArray:self.arrlists]; CGPoint pointOfsnapView = [self.window convertPoint:snapView.center toView:self]; // 目标点 NSInteger endIndexPoint = [self indexOfPoint:pointOfsnapView withUiview:snapView singArray:self.arrlists]; NSLog(@"%f,%f",snapView.center.x,snapView.center.y); NSLog(@"开始下标：：：%ld",(long)startIndex); NSLog(@"结束下标：：：%ld",(long)endIndexPoint); //// 向后拖动 if (startIndex < endIndexPoint && endIndexPoint < _arrlists.count) { UIView *endView = self.arrlists[endIndexPoint]; // 把截图转化成scrollView上的坐标 CGPoint snapViewInscrollView = [self convertPoint:snapView.center toView:self]; snapViewInscrollView.x = endView.yyCenterX; for (NSInteger j = startIndex; j < endIndexPoint; j++) { UIView *singView1 = self.arrlists[j]; UIView *singView2 = self.arrlists[j+1]; [UIView animateWithDuration:0.5 animations:^{ singView2.yyCenterX = singView1.yyCenterX; }]; } [self.arrlists removeObject:superOFHeadView]; [self.arrlists insertObject:snapView atIndex:endIndexPoint]; } if (!link) { // 初始化一个CADisplayLink 一秒调用60次 link = [CADisplayLink displayLinkWithTarget:self selector:@selector(adjustOffSet)]; [link addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode]; //根据截图的范围与边界的关系，调整滚动的快慢参数 if ((CGRectGetMaxX(snapView.frame) - rollBeginMaxX)/5 < 1) { _incrementHeadView = 1; } else if((CGRectGetMaxX(snapView.frame) - rollBeginMaxX)/5 > 20) { _incrementHeadView = 5; } else { _incrementHeadView = (CGRectGetMaxX(snapView.frame) - rollBeginMaxX)/5; } } } else if (CGRectGetMinX(snapView.frame) < rollBeginMinX) {//向左滚动 if (!link) { link = [CADisplayLink displayLinkWithTarget:self selector:@selector(minusContentOffset)]; [link addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode]; } if (-(CGRectGetMinX(snapView.frame) - rollBeginMinX)/5 < 1) { _increment = 1; } else if(-(CGRectGetMinX(snapView.frame) - rollBeginMinX)/5 > 20) { _increment = 5; } else { _increment = -(CGRectGetMinX(snapView.frame) - rollBeginMinX)/5; } } else { //截图大小范围没有超过左右边界时，滚动停止 [link invalidate]; link = nil; [link invalidate]; link = nil; }