taptapstar/assets/scripts/rank/GameCountryRank.js

const RankApi = require('../net/RankApi');

cc.Class({
    extends: cc.Component,

    properties: {
        scrollView: cc.ScrollView,
        layout: cc.Layout,

        rankItem: cc.Prefab,

        meNode: cc.Node
    },

    // LIFE-CYCLE CALLBACKS:

    onLoad () {
        this.pageIndex = 0;

        this.listItem = [];
        for(let i = 0; i < 5; i++) {
            let item = cc.instantiate(this.rankItem);
            this.layout.node.addChild(item);
            item.active = false;
            this.listItem.push(item);
        }

        if (GameGlobal.winSize.height <= 1000) {
            this.scrollView.vertical = true;
        }
    },

    start () {

    },

    init() {
        RankApi.getAllRanks((responseData) => {
            console.log(responseData);
            this.ranks = responseData.ranks;
            this.me = responseData.me;
            this._setupList();
            this._setupMeData();
        }, (error) => {
            console.log('all rank error' + error);
        });
    },

    _setupList() {
        let start = this.pageIndex * 5;
        let end = start + 5;
        let sortArray = this.ranks.slice(start,end);

        this.listItem.forEach(n => {
            n.active = false;
        });

        for(let i = 0; i < sortArray.length; i++) {
            let item = this.listItem[i];
            item.active = true;
            item.getComponent('GameRankItem').init(sortArray[i]);
        }
    },

    _setupMeData() {
        this.meNode.active = true;
        this.meNode.getComponent('GameRankItem').init(this.me, true);
    },

    previousPage() {
        if (this.pageIndex <= 0 || this.ranks == undefined || this.ranks.length == 0) {
            return;
        }
        this.pageIndex -= 1;
        this._setupList();
        this.scrollView.scrollToTop();
    },

    nextPage() {
        if (this.pageIndex >= (Math.ceil(this.ranks.length / 5) - 1)  || this.ranks == undefined || this.ranks.length == 0) {
            return;
        }
        this.pageIndex += 1;
        this._setupList();
        this.scrollView.scrollToTop();
    }

    // update (dt) {},
});