ball: 使用全局 AnimationFrame

pages/component/canvas/canvas/ball.uvue

@@ -96,20 +96,20 @@
       if (!this.runningFlag) {
         return
       }
-      this._animateResult = uni.requestAnimationFrame((_: number) => {
+      this._animateResult = requestAnimationFrame((_: number) => {
         this.animate()
       })
     }
 
     start() {
-      uni.cancelAnimationFrame(this._animateResult)
+      cancelAnimationFrame(this._animateResult)
       this.runningFlag = true
       this.animate()
     }
 
     stop() {
       this.runningFlag = false
-      uni.cancelAnimationFrame(this._animateResult)
+      cancelAnimationFrame(this._animateResult)
     }
   }