LottieAnimationView size won't change/is too small (iOS/Swift)

问题

Whether the view I'm creating is a LOTAnimatedSwitch or View, the image of the animation always appears very small. The lottie animation doesn't take up the size of the view that I create. Is this an issue with downloading the animation from LottieFiles? The dimensions of the file are 600x600 pixels. I'm using Lottie version 2.5.0 and Swift 4. For example:

    let animatedSwitch = LOTAnimatedSwitch(named: "toggle_switch")
    animatedSwitch.frame.origin = CGPoint(x: 8, y: separatorLineView.frame.height + separatorLineView.frame.origin.y + 8)
    animatedSwitch.frame.size = CGSize(width: dialogViewWidth - 16, height: 40)
    animatedSwitch.setProgressRangeForOnState(fromProgress: 0.5, toProgress: 1)
    animatedSwitch.setProgressRangeForOffState(fromProgress: 0, toProgress: 0.5)
    animatedSwitch.contentMode = .scaleAspectFill
    animatedSwitch.clipsToBounds = true
    animatedSwitch.backgroundColor = .purple

回答1:

Try this code i am not sure this will help in your case

let animatedSwitch = LOTAnimatedSwitch(named: "toggle_switch")
animatedSwitch.frame = CGRect(x: 0, y: 0, width: 200, height: 200)
animatedSwitch.center = self.view.center
animatedSwitch.setProgressRangeForOnState(fromProgress: 0.5, toProgress: 1)
animatedSwitch.setProgressRangeForOffState(fromProgress: 0, toProgress: 0.5)
animatedSwitch.contentMode = .scaleAspectFit
self.view.addSubview(animatedSwitch)
self.view.backgroundColor = UIColor.lightGray

回答2:

The problem was with the file I downloaded from LottieFiles. To fix the animation/icon from being small, I scaled the composition size in adobe after effects to fit the preview frame. I exported the .aeb file to .json using the bodymovin plugin.

Hardik's answer was also helpful. The problem was simply that the file I downloaded had a lot of empty space around the actual icon until I scaled the picture up.

回答3:

    animationView = .init(name: "lf30_editor_fip4qqkq")
    animationView!.frame = CGRect(x: 0, y: 0, width: 150, height: 150)
    animationView!.center = self.view.center
    animationView!.contentMode = .scaleAspectFit
    animationView!.loopMode = .loop
    animationView!.animationSpeed = 1.0
    view.addSubview(animationView!)
    animationView!.play()

来源：https://stackoverflow.com/questions/51177088/lottieanimationview-size-wont-change-is-too-small-ios-swift

标签

swift

lottie