An image view object provides a view-based container for displaying either a single image or for animating a series of images in iOS. For animating the images, the UIImageView class provides controls to set the duration and frequency of the animation. You can also start and stop the animation ...
95
votes
2answers
22k views
Dispelling the UIImage imageNamed: FUD
I see a lot of people saying imageNamed is bad but equal numbers of people saying the performance is good - especially when rendering UITableViews. See this SO question for example or this article on ...
17
votes
5answers
8k views
Any quick and dirty anti-aliasing techniques for a rotated UIImageView?
I've got a UIImageView (full frame and rectangular) that i'm rotating with a CGAffineTransform. The UIImage of the UIImageView fills the entire frame. When the image is rotated and drawn the edges ...
25
votes
3answers
16k views
Resizing UIimages pulled from the Camera also ROTATES the UIimage?
I am getting UIimages from the camera and assigning them to UIImageViews to be displayed. When I do this the camera gives me a 1200 x 1600 pixel image which I then assign to a UIImageView in my ...
47
votes
8answers
68k views
how can i detect the touch event of an UIImageView
I have placed an image (UIImageView) on the navigation bar. Now I want to detect the touch event and want to handle the event. Could you let me know how can I do that?
Thanks.
57
votes
9answers
40k views
11
votes
4answers
10k views
Loading an image into UIImage asynchronously
I'm developing an iOS 4 application with iOS 5.0 SDK and XCode 4.2.
I have to show some post blogs into a UITableView. When I have retreived all web service data, I use this method to create an ...
13
votes
2answers
5k views
UIImage from CALayer - iPhone SDK
In my application, I have created a CALayer (with a few sublayers - the CALayer is composed of shapes added as sublayers).
I am trying to create a UIImage that I will be able to upload to a server (I ...
0
votes
1answer
2k views
I want to use animation to imageview using UIanimationtransitioncurl right or left. Is it possible?
I want to animate my photo gallery like the pages of the book.
Is there any method with that I can use UIanimationtransitioncurl in either the left or right side?
This is the code as you have ...
45
votes
15answers
23k views
Center content of UIScrollView when smaller
I have an UIImageView inside a UIScrollView which I use for zooming and scrolling. If the image/content of the scroll view if bigger than the scroll view everything works fine. However, when the image ...
12
votes
4answers
19k views
UIImageView Gestures (Zoom, Rotate) Question
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, ...
9
votes
1answer
8k views
Creating a UIImage from a rotated UIImageView
I have a UIImageView with an image in it. I have rotated the image prior to display by setting the transform property of the UIImageView to CGAffineTransformMakeRotation(angle) where angle is the ...
0
votes
1answer
2k views
How to make image maps clickable using UIWebview in iphone?
I am looking how to get 'one' and 'park' string value (which is image_map coordinates clickable spot on UIwebview's) onclick from HTML to iPHone native obj-c.
I have put the code to get string value ...
0
votes
2answers
429 views
problem with collision of two images
Well here is my problem:
I have two images : flakeImage and ViewToRotate. What I want is that if flakeImage touches ViewToRotate, ViewToRotate.alpha=0.5; but when FlakeImage appears on the screen ...
31
votes
4answers
18k views
iPhone: Camera Preview Overlay
how do I add an overlay (UIImageView) to the camera preview and
handle touches on this?
My previous attempts to do this (e.g. use UIImagePickerController and add the image as a subview) have failed.
...
16
votes
1answer
14k views
Save An Image To Application Documents Folder From UIView On IOS
I have a UIImageView that allows a user to place and hold an image until it can be saved. The problem is, I can't figure out how to actually save and retrieve the image I've placed in the view.
I ...
