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How do I enable support for ProMotion displays?

Support for ProMotion on iOS requires two things:

1. Using an API in the iOS runtime to set the desired FPS (range)
2. Adding an additional entry into your app’sInfo.plist file

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Example Usage

let preferredFPS = UIScreen.main.maximumFramesPerSecond
// or
let preferredFPSRange = CAFrameRateRange(minimum: 60, maximum: Float(preferredFPS))
let viewModel = {
    let viewModel = RiveViewModel(fileName: "...")
    viewModel.setPreferredFramesPerSecond(preferredFramesPerSecond: preferredFPS)
    // or
    viewModel.setPreferredFrameRateRange(preferredFPSRange)
    return viewModel
}()

Additionally, add the following to your app’s Info.plist file:

<key>CADisableMinimumFrameDurationOnPhone</key><true/>

You can view more information about preferred FPS here, and about preferred FPS range here.