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