Method frameLoop

packages/fairygui/src/core/Timer.ts:169–171

* Execute callback every frame * 每帧执行回调 * * @param interval Frame interval (1 = every frame) | 帧间隔 * @param caller Callback context | 回调上下文 * @param callback Callback function | 回调函数

(interval: number, caller: any, callback: Function)

     * @param callback Callback function | 回调函数
     */
    public frameLoop(interval: number, caller: any, callback: Function): void {
        this.loop(interval * 16.67, caller, callback);
    }

    /**
     * Execute callback at the end of current frame