pinch

问题 I am looking to implement a pinch in/out on top of a UITableView, I have looked at several methods including this one: Similar question But while I can create a UIViewTouch object and overlay it onto my UITableView, scroll events are not being relayed to my UITableView, I can still select cells, and they respond properly by triggering a transition to a new ViewController object. But I can not scroll the UITableView despite passing the touchesBegan, touchesMoved, and touchesEnded events. 回答1:

问题 I would like to make 2 operations to an UIImageView zoom, rotate, I have 2 problems: A. I make an operation for zoom for ex. and when I try to make rotation the UIImageView is set to initial size, I would like to know how to keep the zoomed UIImageView and make the rotation from the zoomed image. B. I would like to combine the zoom operation with rotation and I don\'t know ho to implement this: - (void)viewDidLoad { foo = [[UIImageView alloc]initWithFrame:CGRectMake(100.0, 100.0, 600, 800.0)]

问题 I am currently developing for Android (my first app) an application which lets users see the subway map and be able to pinch zoom and drag around. I am currently modifying the code found in Hello Android, 3rd Edition and got the pinch zooming and dragging to work. I\'m using Matrix as my layout scale. However I now have 3 problems: I tried many things to limit the drag parameters but I can\'t seem to stop it being dragged off the parent view (and can actually disappear from view). I\'ve tried