I'm developing a game in Swift (but not sprite kit), and i'm having a lot of trouble to make a background image that look great in every device. I recently understand the concept of the #1x, #2x and #3x images and it's pixels, but i can't find any place that say what size (width and height) an background image must have to look good both in canvas mode, preview mode and in action.
Anyone can help me?
For help, i'm attaching two print screens of a test that i made.
Thanks for the help :)
Image on Xcode 7 canvas
image in preview mode. Notice how he cut the edges
Size Icon For Devices:
UIImageView *imageView = [UIImageView alloc]init];
imageView.frame = CGRectMake(0,0,widthInt,heightInt);
imageView.image = [UIImage ImageWithName:#"nameImage.png"];
Related
I have an app which has image asset with 3 size images #1, #2, #3 as a background image.
I implement launch screen into my project to make app seen as fullscreen on iPhone X. As you know, launch screen asset has size for iPhone X so launch screen looks okay.
However, my background image doesn't look good because #3s' aspect ratio is for plus devices not iPhone X.
Where should I add a proper size image?
EDIT: My question is not about launch screen Image. It is about an background image that I use on regular ViewController
Rather than use an image as your launch screen, you should try using a launch storyboard.
This could contain a single view controller that contains a UIImageView, with contentMode = .aspectFill. This will clip some of the image on either side, but this might be acceptable to you.
It is not a best approach but I solve it by creating another image asset and put iPhone X background image to its #3 area. Then In code I check If It is iPhone X screen, If yes I use image asset with x background, If other use default image asset.
- (void) setBackgroundImage{
// Load launch image
NSString *launchImageName;
if ([UIScreen mainScreen].bounds.size.height == 812){
launchImageName = #"PublicBackground_X"; // iPhone X
}
else {
launchImageName = #"PublicBackground"; // Other iPhones
}
UIImage *image = [UIImage imageNamed:launchImageName];
[self.backgroundImage setImage: image];
}
EDIT:
I don't know why I get bad reputation. None of other solutions worked for me. Clipping an Image shouldn't be acceptable If u have right resolution
So I've done lots of reading on how to achieve perfect image quality on UIButton's .imageView property in iOS. Here's my example ->
I've got an UIButton 24x24 points as per the following line:
myButton = [UIButton buttonWithType:UIButtonTypeCustom];
myButton.frame = CGRectMake(82, 8, 24, 24);
myButton.contentMode = UIViewContentModeCenter;
buttonImage = [UIImage imageNamed:#"myImage.png"];
ogImage = [buttonImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
I then have the original image sized to 46x46 pixels (twice 23x23, 24x24 on button for even size to prevent iOS auto-aliasing), then the image#2x at 92x92 pixels. Im testing on an iPhone 6s (obviously retina display) and am still seeing some jaggedness on my UIButton's image. What am I doing wrong here? Am I still not understanding how to achieve perfect retina quality?
Here's an image, Im hoping it displays well for example:
Not sure if this is going to help, but this is my personal preference. If for example, I have a UIButoon of size 24x24, I always generate 24x24, 48x48, and 72x72 images. I rely on my Adobe Illustrator to creat pixel perfect images. Always check your images in pixel preview mode and make sure edges are aligned with the pixels. If not, it can produce artifacts that you see in xCode.
If it's what you want in Illustrator then it's what you get in xCode.
Apologies for posting an image-related question as a new user, I need more reputation in order to include pics in my post :)
I am trying to resize an image without scaling its corners. I tried using resizableImageWithCapInsets as well as slicing through an asset catalog (although the latter only supports a deployment target of iOS 7+, which really does not make it a solution option...). I am using an image named "ViewHeaderTest.png" which is 44x100 pixels. The caps/insets should be a 16x16 pixel square in each corner.
This is the code:
UIImageView *headerTest = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"ViewHeaderTest.png"]];
headerTest.image = [headerTest.image resizableImageWithCapInsets:UIEdgeInsetsMake(8, 8, 8, 8) resizingMode:UIImageResizingModeStretch];
headerTest.frame = CGRectMake(0, 0, 22, 50);
Code as well as asset catalog slicing produce the same result for me, which, oddly, does not appear mentioned anywhere else on stackoverflow: The caps / insets work fine, but they are scaled to double their original size. Basically it appears that resizableImageWithCapInsets takes returns an image of twice its original proportions.
Any takers? :)
Solution found:
As suspected, this is a retina issue. To avoid xcode confusing retina and non-retina images when using cap insets,
Specity image name without file extension, i.e. #"FileName" instead of #"FileName.png"
Have retina AND "normal" version of the file in corresponding resolutions in your project. I.e. have FileName.png (100px x 100 px) AND FileName#2x.png (200px x 200px) in the project.
I'm happy that it works, so I have not checked if either of these is redundant :)
I'm new to iOS Development, I'm using a UIImageView to display an image. I've made a 320x480 and a 640x960 image called "red.png" and "red#2x.png".
No matter how I scale or align the UIImageView, the image always chops off half way at the top.
Is there something I'm meant to do to combat this, as I thought those resolutions were correct?
The UIImageView is sized at 320x568 to fill the storyboard.
Thanks :)
My comment above is hard to read, and it's probably an answer:
myImageView.contentMode = UIViewContentModeScaleAspectFit;
Try changing to image name as follows:
self.colourImage.image = [UIImage imageNamed: #"red.png"];
You should not directly specify '#2x' in image names.
It is automatically used if a device supports retina display.
That is why you need to create 2 sets of images; one for non-retina and one for retina (using #2x) and the OS selects the correct one for you.
i want to set an image to a custom UIView. I created the Image in Photoshop with 100 by 100 pixels.
Then I did:
self.customView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"Image.png"]];
And it worked just fine, except that i could see the pixels on my Retina display. Don't get me wrong i saw that coming, because i set the image in Photoshop to 100x100 and the UIView to 100x100. So due to the "false" pixel definition in xcode it is displayed with the double size pixels.
But how can i create a image, say an image with 200x200 and then set it to the background of the 100x100 View so it is displayed with native resolution. I tried to search for something like "scale to fit"-function for the backgroundPattern for the UIView but couldn't find anything.
So my question is, how do i set an image as "Retina 2x" Image?
And how do i get it into my UIView?
Thanks in advance!
This is your answer.
Basically put two images in your project. "Image.png" and "Image#2x.png". The code inside [UIImage imageNamed:#"Image.png"] will pull from the correct image based on the screen hardware.