I have been trying to change my apps icon, but i cannot seem to do it. I have been following this example: https://developer.apple.com/library/ios/recipes/xcode_help-image_catalog-1.0/chapters/AddingLaunchImagestoanAssetCatalog.html
but no matter what i do, i cannot get the icon to change. whenever i add an image, it just gives me an error saying that it is the incorrect size, but when i change the size of the image xcode tells me a new size.
is there something that isn't in this example that i would be missing?
This is a good way, you should do something like this:
For example:
40pt - 120:120 for #3x, 80:80 for #2x , 40:40 for #1x
for artworks 512:512 for #1x and 1024:1024 for #2x
Be attentive with icon sizes, and everything will be ok :)
I personally like to use this site to make my app icons. Just upload a fairly large icon artwork and they will send you an email with all the configured sizes.
In the file, go into the iOS folder and look for a folder called AppIcon.appiconset. Copy that.
Go into your app's source folder and into your images.xcassets folder. Now paste in that copied folder and say replace.
Resize them manually and then add them there by drag and drop
example: Size = 1x * 29pt = 29x29
Here is a link to the section on images and icons in the Apples humane interface guidelines, it goes over the different sizes that you need. And don't forget to append the #2x and #3x to the name of your icons!
First you need to convert the image then drag it into assets -> AppIcon
visit this website for converting icon
https://makeappicon.com
After converting the icon on the website they will mail you all the converted icons on your mail id, then you need to select the image icon form the provided list according to the size.
I want to use static launch Images instead of launch file, so I have created a LaunchImage folder in Images.xcassets. I have also deleted LaunchScreen.xib and made some settings.
But on iOS Simulator, the launch image is still the same as before without the images I have added. How can I deal with this?
You just have to let the field Launch Screen File empty. If you let this field fill, it will be used by your project.
Also, if you don't have any launch image sources in your cassettes, you will just have a black screen until you fill them.
It is necessary to add images of the correct sizes (for all device sizes that your app supports).
How do I set the images so that I can archive and validate my app? The screen looks like this now:
So the first one says 29pt, but then it also says 2x. So do I put a 29x29 image or a 58x58 image? And where do I put all of the other ones? (I know that there are more sizes than 29, 40, and 60).
Anyway, what I tried was I dragged a 29x29 png onto the first slot, a 40x40 onto the second, and a 60x60 onto the third and fourth. When I went to Product->Archive, I get
/Users/kendon/Documents/iPhone Apps/Sales Tool/Sales Tool/Images.xcassets: The app icon set named "AppIcon" did not have any applicable content.
I recently found this App called Icon Set Creator in the App Store which is free, without ads, updated on new changes, straight forward and works just fine for every possible icon size in OSX, iOS and WatchOS:
In Icon Set Creator:
Drag your image into the view
Choose your target platform
Export the Icon Set folder
In XCode:
Navigate to the Assets.xcassets Folder
Delete the pre existing AppIcon
Right click -> Import your created Icon-Set as AppIcon and you're done
Update: Unless you love resizing icons one by one, check out Schmoudi's answer. It's just a lot easier.
Icon sizes
Above image from Designing for iOS 9. They are the same for iOS 10.
How to Set the App Icon
Click Assets.xcassets in the Project navigator and then choose AppIcon.
This will give you an empty app icon set.
Now just drag the right sized image (in .png format) from Finder onto every blank in the app set. The app icon should be all set up now.
How to create the right sized images
The image at the very top tells the pixels sizes for for each point size that is required in iOS 9. However, even if I don't get this answer updated for future versions of iOS, you can still figure out the correct pixel sizes using the method below.
Look at how many points (pt) each blank on the empty image set is. If the image is 1x then the pixels are the same as the points. For 2x double the points and 3x triple the points. So, for example, in the first blank above (29pt 2x) you would need a 58x58 pixel image.
You can start with a 1024x1024 pixel image and then downsize it to the correct sizes. You can do it yourself or there are also websites and scripts for getting the right sizes. Do a search for "ios app icon generator" or something similar.
I don't think the names matter as long as you get the dimensions right, but the general naming convention is as follows:
Icon-29.png // 29x29 pixels
Icon-29#2x.png // 58x58 pixels
Icon-29#3x.png // 87x87 pixels
Launch Image
Although you can use an image for the launch screen, consider using a launch screen storyboard file. This will conveniently resize for every size and orientation. Check out this SO answer or the following documentation for help with this.
Useful documentation
App Icon
Launch Screen
The Xcode images in this post were created with Xcode 7.
To save a bit time:
1) You can mark your app icon images all in finder and drag them into your Assets catalog all at once by dragging into one of the empty slots of the app icon imageset. When you hold your drag over the slot, several of the other slots look selected and when you drop those all will be filled up at once. Note that this works in XCode 8 (I haven't tried XCode 7), but in XCode 9 beta not yet.
2) The "Technical Q&A QA1686" apple documentation site has the sizes per app icon slot already calculated for you in a nice image and also contains the correct image names conventions.
I've tried most of the above and a few others and have found https://appicon.co to be the easiest, fastest, and provides the most comprehensive set.
Drag your image onto the screen
Click Generate
Open the file just downloaded to your Downloads folder
Here, you may be able to drag this entire folder into Xcode. If not:
Double-click the Assets.xcassets folder
Select all files
Drag them to Assets.xcassets
Rename it to AppIcon
The correct sizes are as following:
1)58x58
2)80x80
3)120x120
4)180x180
I use a tool called Prepo to produce all the right image sizes. You simply feed the app you image file and it will spit out each necessary file with an appropriate name.
Once you do this, you can then drag in the appropriate files or simply point to your Prepo exported folder.
Now a days is really easy to set app-icon, just go to
https://makeappicon.com/ add your image, they will send you all size of App-icon (Also for watch & itunes as well), now Click Assets.xcassets in the Project navigator and then choose AppIcon. Now you just have to drag n drop the icon as required.
I found App called Iconizer. You can find repository on github. Iconizer can generate app icons for OS X, iPad, iPhone, CarPlay and Apple Watch with just one image.
Simply Drag and Drop your icon onto Iconizer, select the platforms you need and whether or not you want all platforms generated into one asset catalog, then hit export.
After that just replace (delete and import) your AppIcon in the Assets.xcassets
In the left list, right click on "AppIcon" and click on "Open in finder"
A folder with name "AppIcon.appiconset" will open.
Paste all the graphics with required resolution there.
Once done, all those images will be visible in this same screen(one in your screen shot). then drag them to appropriate box.
App icons have been added.
Same process for Launch images.
Launch images through this process are added for iOS 7 and below.
For iOS 8 separate LaunchScreen.xib file is made by default.
I quite like this app made by Jordi Bruin called Bakery
It allows emoji and SFSymbols for quick prototyping (not for the App Store in this case!)
It is as easy as drag and drop your design to the app and then again drag and drop to the asset catalog without having to fill in all the sizes by hand.
This is a very frustrating part of XCode. Like many, I wasted hours on this when I switched to a newer version of xcode (version 8). The solution for me was to open the properties for my project and under the "App Icons and Launch Images" choose the "migrate" option for the icons. This made absolutely no sense to me as I already had all my icons there, but it worked! Unfortunately I now seem to have two copies of my launcher icons in the project though.
As per updated version(Xcode 8.3.3) I saw that below resolution are required for all fields of AppIcon sets.
40x40
58x58
60x60
80x80
87x87
120x120
180x180
It comes with hdpi, xhdpi, xxhdpi etc.
Hope it will helps others.
Edited to 120x120
You can easily do it without resizing yourself or doing anything, just choose your icon at an app store icon generator website
https://getappscreenshots.com/app-icon-generator and it'll generate all required files and all icon sizes so you can just copy the files and paste in your project's folder!
You can get away with just adding a single image of size 1024*1024px.
Just add the image in like so
and select single size in the menu to the right.
I am trying to use the image.xcassets in the newer xcode versions but i need to understand it better before proceeding it. Can any one help me out of it like,
1. what is image.xcassets exactly?
2. what is the purpose of using it?
3. how do i add and delete images into the assets?
4. is this only for launcher and splash images or is it possible to use our app images too?
Thanks in advance.
It is a utility in xcode that provide ease to add launch images and app-icons.
Just make the icon size and launch image size accordingly and drag them to the respective place.
I think for app icon 58*58,80*80 and 120*120 are the sizes, and for lauch image 640*960 and 640*1136 just make your .png images to those sizes add them to your project and place over there.
To remove image from there right click on that and remove item.
Every thing is going fine. Just one issue with Launch Images in iOS7 with XCode 5 by using Asset Catalogue.
In my iPad App, i have splash images of all the sizes.
When i am selecting Portrait Non-Retina [768x1024], its added successfully; after that when i select Portrait Retina [1536x2048], then Non-Retina [768x1024] image removed and giving this error "No image with correct dimensions found". Vise Versa is also applying.
Same behavior is for Landscape Retina and Non-Retina images.
Please suggest any solution. Thanks in Advance.
Delete the image from the asset catalogue and copy it back again. Perform and Clean and then build. It should work.
I have investigated, how we can use Asset Catalog; Now it seems to be easy for me. I want to show you steps to add icons and splash in asset catalog.
Note: No need to make any entry in info.plist file :) And no any other configuration.
In below image, at right side, you will see highlighted area, where you can mention which icons you need. In case of mine, i have selected first four checkboxes; As its for my app requirements. You can select choices according to your requirements.
Now, see below image. As you will select any App icon then you will see its detail at right side selected area. It will help you to upload correct resolution icon.
If Correct resolution image will not be added then following warning will come. Just upload the image with correct resolution.
After uploading all required dimensions, you shouldn't get any warning.
You need to actually use asset catalog by clicking the asset catalog button. Then you will get templates specifying every size you need, and you can drag and drop or import you PNGs and see where you're missing images or the size is wrong. In asset catalog, clicking on the properties pane for an image will show you the size of the image it expects, and teh size you gave it, so you can easily see any discrepancies.