uni-app uses CSS to implement infinite rotation animation

I originally wanted to use uni.createAnimation to create a rotation animation, but found that it stopped moving after one rotation and could not rotate in a loop.

Later, I used setInterval to increase the rotation angle by 180 degrees every other cycle. I found that the animation gradually collapsed after running for a period of time. This should be caused by the animation cycle and the timer cycle time not completely matching.

<image :animation="animationData" class="music_img_flag" src="../../static/images/musicflag.png">
		</image>

	var animation = uni.createAnimation({
		duration: 2000,
		timingFunction: "linear"
	});
	this.stopAnimation()
	this.timer = setInterval(() => {
		this.timeNum += 180;
		animation.rotate(this.timeNum).step();
		console.log('timeCheck:', this.timeNum)
		this.animationData = animation.export();
	}, 2000);

Finally, the following method was adopted, directly using CSS to implement the loop rotation animation.

<view class="music_img_flag">
    <image src="../../static/images/musicflag.png"></image>
</view>

<style lang="scss" scoped>
		.music_img_flag {
			position: absolute;
			top: 202rpx;
			width: 88rpx;
			height: 88rpx;

			image {
				width: 100%;
				height: 100%;
				animation: animal 2s infinite linear;
				-webkit-animation: animal 2s infinite linear;
				-webkit-transform-origin: center center;
				-ms-transform-origin: center center;
				transform-origin: center center;
			}

			@keyframes animal {
				0% {
					transform: rotate(0deg);
					-ms-transform: rotate(0deg);
					-webkit-transform: rotate(0deg);
				}

				100% {
					transform: rotate(360deg);
					-ms-transform: rotate(360deg);
					-webkit-transform: rotate(360deg);
				}
			}
		}
</style>