![]() ![]() "Įcho "brew not installed, trying to install. # make sure to have imagemagick installed, see :Įcho "imagemagick not installed, trying to install. # make sure to have brew installed, see : # remove alpha channel from PNG images when App Store upload fails It uses brew to install imagemagick if not available, so I guess it will run only on Mac. Quick preview of your app icon on the devices. This icon resizer optimizes your icon designs into all formats needed for iOS and Android mobile app Generate icons that are required in an iOS and Android app. I put Nikita Pushkar's very nice solution into a shell script that converts all iOS icons found in res/icon/ios: Priced at 14.99 because Apple takes commission. Select all (⌘+a), and then select File > Export Selected Images… > Expand Options > uncheck the Alpha checkbox > Choose (your destination folder)ĭone! All your images are now exported with the alpha channel stripped off. The way I got batch exporting to work was to select all my app icon assets in finder > right click > open (or open with preview)Īll of the assets will now appear in the same window. Underneath More info, it showed:įound the solution above to use Preview to remove the alpha channel by exporting it with the Alpha checkbox unchecked, but figured a way to batch export them since I had 18 assets I needed to strip the alpha channel from. ![]() ![]() I confirmed that my app store icons did include the alpha channel by locating the asset in Finder and looking up its info (⌘+i). The App Store icon in the asset catalog in 'MyApp.app' can't be transparent nor contain an alpha channel." Now when we launch the app, we can see that the default app icon has been replaced with our custom one.Just got the the following error when trying to upload my app to the iTunes app store:ĮRROR ITMS-90717: "Invalid App Store Icon. If you're using React Native, you can also do this by running react-native run-ios. Finally, rebuild the native app from Xcode. If you're running your app on a simulator, now's a good time to close the simulator altogether to get rid of any cached versions of the previous app icons. You can drag and drop the correct size icon into the correct boxes in Xcode. Inspecting the generated folder, you can see that the icon sizes match those that are required by Xcode. Finally, hit the export button and save the generated assets. Once you've opened iconizer, select all the platforms you want to generate the icons for, then drag and drop the icon you generated earlier into iconizer. To generate all the different sizes of the icons required, I'm going to use iconizer, which is a markup you can download for free. When you're happy with how your icon looks, hit the Export button and export the icon as a PNG. Then I'm going to make the sun a little bit brighter. I'm going to copy the color for the cloud and use it for the background instead. Because I used an SVG here, I can also tweak the colors. ![]() When resizing images, you can hold shift in Figma while dragging to make sure you maintain the aspect ratio of the picture. You can import images to Figma just by dragging and dropping them into the browser. I'm going to use an SVG I already downloaded earlier. Then change the width and height of this rectangle to 1024px, which is the optimal size for app icons for iOS. First, grab the rectangle tool and create a rectangle of any size. I use Figma, which is free and available online. To create the icon, use any image editing tool. The app icon is a special kind of assets, and in here, you can see the different kind of resolutions you need to provide the image in. Once you open Xcode, navigate to the app icon assets in the Images directory. For an iOS app, the quickest way to edit this is via Xcode. It doesn't currently have an app icon, so we see a default image. Kadi Kraman: Here's a weather app I built that shows the current weather in London. ![]()
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