yichael_timechallenge/assets/Scripts/Game/BackBtn.js

cc.Class({
    extends: cc.Component,

    properties: {
        
    },
    start () {  
        this.countAniTime = 0;
        this.animation = this.node.getComponent(cc.Animation);
        
        this.animation.on('finished', this.onFinished,this);
        this.animation.play();
      
    },
    onFinished: function (num, string) {
        this.countAniTime++;
        if(this.countAniTime == 3)
        {
            this.scheduleOnce(function(){
                this.countAniTime = 0;
                this.animation.play();
            },2);
            return;
        }

        this.animation.play();
        //console.log('onAnimCompleted: param1[%s], param2[%s]', num, string);
    }

});