Iphone 如何在uiscrollview中收缩缩放图像
我有tableview->custom cell->uiscrollview->uiimageview 如何收缩和缩放uiscrollviewIphone 如何在uiscrollview中收缩缩放图像,iphone,ios,uitableview,uiscrollview,Iphone,Ios,Uitableview,Uiscrollview,我有tableview->custom cell->uiscrollview->uiimageview 如何收缩和缩放uiscrollview - (void)scrollViewDidZoom:(UIScrollView *)aScrollView - (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView methods are not working for me. 我的代码是: - (void)vie
- (void)scrollViewDidZoom:(UIScrollView *)aScrollView
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
methods are not working for me.
我的代码是:
- (void)viewDidLoad
{
objCellfullscreen.scroll.maximumZoomScale = 6.0f;
objCellfullscreen.scroll.minimumZoomScale= 0.5f;
objCellfullscreen.scroll.scrollEnabled = YES;
objCellfullscreen.scroll.contentSize = CGSizeMake(320, 460);
objCellfullscreen.scroll.delegate =self;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = @"Cell";
objCellfullscreen =(cellFullScreen *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (objCellfullscreen==nil) {
.......
...........
.........
}
return objCellfullscreen;
}
- (void)scrollViewDidZoom:(UIScrollView *)aScrollView
{
CGFloat offsetX = (objCellfullscreen.scroll.bounds.size.width > objCellfullscreen.scroll.contentSize.width)?(objCellfullscreen.scroll.bounds.size.width - objCellfullscreen.scroll.contentSize.width) * 0.5 : 0.0;
CGFloat offsetY = (objCellfullscreen.scroll.bounds.size.height > objCellfullscreen.scroll.contentSize.height)?(objCellfullscreen.scroll.bounds.size.height - objCellfullscreen.scroll.contentSize.height) * 0.5 : 0.0;
objCellfullscreen.img.center = CGPointMake(objCellfullscreen.scroll.contentSize.width * 0.5 + offsetX,objCellfullscreen.scroll.contentSize.height * 0.5 + offsetY);
}
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
return objCellfullscreen.img;
}
谢谢。。请提供帮助。由于
UITableView
继承自UIScrollView
,因此不应该在tableview中使用滚动视图,这可能就是为什么滚动视图的某些委托方法不会偶尔调用的原因。希望您也在.h文件中设置UIScrollView委托