我在一个图像中有一个滚动视图。我只想放大和缩小滚动视图。如何仅通过捏合来应用放大和缩小?
问问题
552 次
2 回答
1
您必须将您的maximumZoomScale
和/或minimumZoomScale
属性设置UIScrollView
为 1.0 以外的其他值,以定义您希望用户能够放大/缩小多少;)
于 2011-01-20T16:00:37.040 回答
0
只需将文件http://www.4shared.com/dir/-PGqZEXR/zoominzoomout.html添加到您的项目中,并通过这些函数调用它。
这im2
是 UIVIEW,我将图像粘贴在上面,然后像这样传递它viewDidLoad
,
- (void)viewDidLoad {
[self loadFlowersInView:im2];
[self.view addSubview:im2];
}
现在像这样附加这个功能,
- (void) loadFlowersInView: (UIView *) backdrop
{
NSString *create_button = nil;
// Add the flowers to random points on the screen
for (int i = 0; i < 1; i++)
{
MagPicAppDelegate *appdelegate = (MagPicAppDelegate *)[[UIApplication sharedApplication] delegate];
NSString *whichFlower = appdelegate.imageName;
UIImage *stemp = [UIImage imageNamed:@"approve.png"];
DragView *dragger = [[DragView alloc] initWithImage:stemp];
dragger.userInteractionEnabled = YES;
dragger.center = CGPointMake(160.0f, 140.0f);
[im2 addSubview:dragger];
[dragger release];
}
}
[self.view addSubview:im2];
[im2 release];
}
于 2011-01-21T06:46:57.370 回答