cocos creator 龙骨4.5 相关函数使用方式

cc.Class({
    extends: cc.Component,

    properties: {
        dbboss: dragonBones.ArmatureDisplay
    },

    // LIFE-CYCLE CALLBACKS:

    onLoad () {
        cc.log("gameloginnode + onLoad")
    },

    start () {
        this.firstupdate = true
        cc.log("gameloginnode + start")

        this._armature = this.dbboss.armature();

        //注册回调
        this.dbboss.addEventListener(dragonBones.EventObject.LOOP_COMPLETE, this._animationEventHandler, this);//循环动画完成一次
        this.dbboss.addEventListener(dragonBones.EventObject.COMPLETE, this._animationEventHandler, this);//所有动画完成有限次数

        
    },

    _animationEventHandler: function (event) {
        if (event.type === dragonBones.EventObject.LOOP_COMPLETE) {
            cc.log("动画播放完成一次")
            // if (event.animationState.name === "jump_1") {
            //     this._isJumpingB = true;
            //     this._speedY = -JUMP_SPEED;
            //     this._armature.animation.fadeIn("jump_2", -1, -1, 0, NORMAL_ANIMATION_GROUP);
            // } else if (event.animationState.name === "jump_4") {
            //     this._updateAnimation();
            // }
        }
        else if (event.type === dragonBones.EventObject.COMPLETE) {
            cc.log("动画播放完成")

            this._armature.animation.fadeIn("huxi", 0.3, 1);//没搞懂

            //移出LOOP_COMPLETE 移出后 呼吸不会进入上面的回调了
            this.dbboss.removeEventListener(dragonBones.EventObject.LOOP_COMPLETE, this._animationEventHandler, this);

            // if (event.animationState.name === "attack_01") {
            //     this._isAttackingB = false;
            //     this._attackState = null;
            // }
        }
    },

    update (dt) {
        if (this.firstupdate) {
            cc.log("gameloginnode + update")
            this.firstupdate = false
        }
    },
});