I have a scrollView and two subviews attached in that an imageView and a buttons view which holds some hotspots that have lines to the image view. I want to zoom in / out and move the hotspots accordingly. The problem i have is that i can't keep the hotspots in the place i want and can't find a solution here.
here is my code in viewDidLoad
- (void)viewDidLoad
{
[super viewDidLoad];
// set the tag for the image view
[imageView setTag:ZOOM_VIEW_TAG];
imageScrollView.delegate = self;
float sexy = [imageScrollView frame].size.height / [imageView frame].size.height;
initialZoom = sexy;
[imageScrollView setZoomScale:sexy animated:NO];
[imageScrollView setMinimumZoomScale:sexy];
[imageScrollView setContentInset:UIEdgeInsetsMake(-30, 0, 0, 0)];
scaleStart = imageScrollView.zoomScale;
buttonView = [[UIView alloc]init];
buttonView.frame = imageScrollView.frame;
[imageScrollView addSubview:buttonView];
button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:@selector(buttonClicked:)
forControlEvents:UIControlEventTouchDown];
[buttonView addSubview:button];
[button setTitle:@"Button x" forState:UIControlStateNormal];
button.frame = CGRectMake(200.0, 400.0, 520.0, 150.0);
imageView.center = self.view.center;
imageScrollView.maximumZoomScale = MAX_ZOOM_SCALE;
//setting an orientation notifier
UIDevice *device = [UIDevice currentDevice]; //Get the device object
[device beginGeneratingDeviceOrientationNotifications]; //Tell it to start monitoring the accelerometer for orientation
NSNotificationCenter *nc = [NSNotificationCenter defaultCenter]; //Get the notification centre for the app
[nc addObserver:self //Add yourself as an observer
selector:@selector(orientationChanged:)
name:UIDeviceOrientationDidChangeNotification
object:device];
}
and i'm trying to implement the rest of my code in
- (void)scrollViewDidZoom:(UIScrollView *)aScrollView
without any luck using aScrollView.zoomScale property.
and moving the button view in right place. the problem i have is that zoomscale when i zoom in (full zoom in) i get a value of 0.53454 and and when i (full) zoom out i get a value of 0.37261 why is this happening and i don't get again the first value?
how can i do what i want to do?
i want something like google maps when zoom in/out and the place spots keep in place without zooming themselves.
