微信小游戏订阅功能

订阅步骤

主动拉起订阅，使用接口wx.requestSubscribeSystemMessage(Object object)
如果用户拒绝订阅，下次点击订阅后打开设置页，在设置页回来后通过接口wx.getSetting(Object object)获取用户是否在设置页已经打开了订阅开关

typescript 复制代码

public Subscribe(cb?: Function) {
    if (!this._sdk) { return; }

    if (this._Subscribed === 'accept') {
        Log.log("wx Subscribe 已订阅:", this._Subscribed);
        cb && cb(1);
        return;
    }

    let request = () => {
        this._sdk!.requestSubscribeSystemMessage({
            msgTypeList: ['SYS_MSG_TYPE_WHATS_NEW'],
            success: (res:any) => {
                this._Subscribed = res['SYS_MSG_TYPE_WHATS_NEW'];
                if (this._Subscribed === 'accept') {
                    Log.log("wx Subscribe 订阅成功:", this._Subscribed);
                    cb && cb(0);
                } else {
                    Log.log("wx Subscribe 订阅失败:", this._Subscribed);
                    cb && cb(-1);
                }
            },
            fail: (res) => {
                Log.log("wx Subscribe 订阅失败:", res);
                cb && cb(-1);
            }
        })
    }

    let openSetting = () => {
        this._sdk!.openSetting({
            withSubscriptions: true,
            success:()=>{
                this._waitSubscribe = true;
            },
            fail: (res) => {
                cb && cb(-1);
            },
        });
    }

    if (!this._Subscribed || this._Subscribed.length == 0) {
        request();
    } else {
        openSetting();
    }
}
    
public onShow(callback?: Function) {
    if (!this._sdk) {
        return;
    }
    this._sdk!.onShow((res: WechatMinigame.OnShowListenerResult) => {
        if (this._waitSubscribe) {
            this._waitSubscribe = false;
            this.checkSubscribe(true);
        }
    });
}
private checkSubscribe(bNeedEvent : boolean) {
    if (!this._sdk) {
        return;
    }
    if (this._Subscribed === 'accept') {
        return;
    }
    this._sdk.getSetting({
        withSubscriptions: true,
        success: (res) => {
            if (res.subscriptionsSetting && res.subscriptionsSetting.itemSettings && res.subscriptionsSetting.itemSettings.SYS_MSG_TYPE_WHATS_NEW) {
                this._Subscribed = res.subscriptionsSetting.itemSettings.SYS_MSG_TYPE_WHATS_NEW;
                Log.log("wx Subscribe 订阅状态:", this._Subscribed);
                if (bNeedEvent && this._Subscribed === 'accept') {
                    //TO DO SOMTHING
                }
            }
        },
        fail: (res) => {
            Log.log("wx getSetting fail:", res);
        }
    });
}