All Questions
Tagged with objective-c uiimageview
3,463
questions
0
votes
1
answer
78
views
How to detect when two CAShapeLayers intersect and to change the color of the intersecting pixels
I have a class called ShapeView which subclasses UIImageView. Within this class, there is a CALayer property called shape which I use to define various types of complex shapes. Using ...
- 14.4k
-2
votes
1
answer
26
views
iOS / ObjectiveC: I try to open a viewcontroller with an imageview containing a local image, but it displays a white page
I precise that when I use the debugger, I can see the image in the image view.
Why it displays a white page ? (I can see the back button)
- (void) openIMAGE:(NSIndexPath *) indexPath
{
NSString *...
- 2,571
-1
votes
1
answer
300
views
iOS Button background image not working. (UIButton backgroundImage) [duplicate]
(A) Following line change the image in my imageview.
[(UIImageView *)[cell viewWithTag:400] setImage:[UIImage imageNamed:@"sellsign"]];
(B) Following code change only Title of button. [ I ...
- 19
0
votes
1
answer
61
views
Display image on UIImageView using Web server image
I want to display an image on UIImageView calling the Web server image.
Because I want to replace and show it right away.
here's the code
NSURL *imageURL = [NSURL URLWithString:urlString];
NSData *...
- 11
0
votes
0
answers
37
views
UIImageView Clear Background on Areas Picture Doesn't Cover
I have a rotating set of pictures in my app, and some of the pictures are not the exact size or ratio for my UIImageView. I'd like to have it so that the areas of the image view that aren't taken up ...
- 143
0
votes
1
answer
128
views
Fatal error when setting UIImageView in objective c
Hello i have a UIImageview and trying to set the image which was previously saved in a NSArray and then the NSArray is saved into an NSMutableDictionary. Here is the error and the code. Any help ...
- 3,304
0
votes
2
answers
890
views
iOS - how to show multi network images at the same time?
On my UIView, I have 3 UIImageViews to load 3 image's url. As we all know, 3 UIImageView load images has time difference , But I have a requirement: After 3 images all downloaded, then 3 UIImageViews ...
- 449
0
votes
2
answers
88
views
how to programmatically show a colored disk behind a UIImageView, in swift on an iOS device
I have an icon that I programmatically display.
How can I display a solid, colored disk behind the icon, at the same screen position?
Icon is opaque.
I will sometimes programmatically change screen ...
- 8,209
2
votes
2
answers
1k
views
How to cache images in Objective-C
I want to create a method to cache an image from an URL, I got the code in Swift since I had used it before, how can I do something similar to this in Objective-C:
import UIKit
let imageCache: ...
- 230
0
votes
1
answer
155
views
UIImageView with cornerRadius is incorrectly cropped
I am trying to add cornerRadius to UIImageView which is rectangle with small height (7pt). UIImageView is incorrectly cropped on the right side.
The strange thing is that UIImageView is perfectly ...
- 4,059
2
votes
0
answers
2k
views
Present UIImagePickerController from UIViewController that is already presented
I create a settings/editing type view controller like so:
EditViewController *editController = [storyboard instantiateViewControllerWithIdentifier:@"parent"];
UINavigationController *...
- 750
0
votes
1
answer
47
views
Obj-C - Tap gesture to return RGB color in imageview returning incorrect color?
I'm using the below code to grab the RGB value of the point tapped inside an imageview (the imageview is a color wheel). Tapping the image works perfectly, and an RGB value is returned - however it's ...
- 1,419
1
vote
1
answer
326
views
dynamically get the image from different resource folder iOS
Currently I have the image folder the paths is Resource/images and inside the images folder there are several images, I would like to create dark mode using the same image name but the image are ...
- 83
0
votes
4
answers
1k
views
UIImageView frame not placing correctly on the parent ImageView
I have a color palette imageview, in that I want to place a plus icon(imageView) according to the x and y-axis I am getting from the backend. If I get x = 0 and y = 0 the frame of the plus is placing ...
- 2,191
0
votes
0
answers
30
views
How can I use Android .xml file as an image in my UIImageView
This is my image.xml file content and I want to use it as an image in my UIImageView using Objective-C code. Works on Android, but I don't know how to do it in Objective-C on iOS. Any idea or ...
