Now that you have converted the file, you need to add it to your iOS Resources directory. To do this on macOS, issue the following command in Terminal: afconvert -f caff -d input.mp3 output.caf. caf format for it to work inside of a push notification (MAKE SURE YOUR SOURCE FILE IS 30 SECONDS OR LESS IN DURATION). Today we will look at how to implement this in Xamarin.Forms (you will need a dependency service for this to work since the Android and iOS solutions use platform specific code).īefore you can use your custom notification tone, you need to have it in the. Normally, you would have to change the notification tone within settings, but if you want your app’s notification tone to stand out from the default tones, you can set your own notification tone. Upon the receiving a push notification, iOS and Android will automatically use the default tone for the notification (or just vibrate if your device is set to silent).