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48 lines
1.3 KiB
48 lines
1.3 KiB
// @ts-nocheck
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// 是否支持被动事件监听
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export const supportsPassive = true;
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// #ifdef uniVersion < 4.25
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// 请求动画帧
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export function raf(fn: TimerCallback): number {
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return setTimeout(fn, 1000 / 60);
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}
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// 取消动画帧
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export function cancelRaf(id: number) {
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clearTimeout(id);
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}
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// 双倍动画帧
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export function doubleRaf(fn: TimerCallback): void {
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raf(():number => raf(fn)); // 在下一帧回调中再次请求动画帧，实现双倍动画帧效果
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}
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// #endif
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// #ifdef uniVersion >= 4.25
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// 请求动画帧
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export function raf(fn: UniAnimationFrameCallback): number
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export function raf(fn: UniAnimationFrameCallbackWithNoArgument): number
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export function raf(fn: any): number {
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if(typeof fn == 'UniAnimationFrameCallback') {
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return requestAnimationFrame(fn as UniAnimationFrameCallback);
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} else {
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return requestAnimationFrame(fn as UniAnimationFrameCallbackWithNoArgument);
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}
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}
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// 取消动画帧
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export function cancelRaf(id: number) {
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cancelAnimationFrame(id);
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}
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// 双倍动画帧
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export function doubleRaf(fn: UniAnimationFrameCallback): void
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export function doubleRaf(fn: UniAnimationFrameCallbackWithNoArgument): void
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export function doubleRaf(fn: any): void {
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raf(():number => raf(fn)); // 在下一帧回调中再次请求动画帧，实现双倍动画帧效果
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}
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// #endif
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