请问下 uniapp 支持 wx.navigateTo 的EventChannel 吗

不支持，果断弃

// #ifndef MP-WEIXIN  
//  
//为uni.navigateTo打补丁，使其支持微信的EventChannel数据回传模式  
// 需要在子页面onLoad中及时调用，this.getOpenerEventChannel，如果打开孙页面之前未调用，则EventChannel会丢失  
class EventChannel {  
    listener = {};  

    emit(event, args) {  
        this.listener[event] && this.listener[event].forEach(v => {  
            if (v.off) return;  
            v.fn(args);  
            if (v.once) {  
                v.off = true;  
            }  
        });  
    }  

    on(event, fn) {  
        this.listener[event] = this.listener[event] || [];  
        this.listener[event].push({  
            once: false,  
            fn  
        });  
    }  

    once(event, fn) {  
        this.listener[event] = this.listener[event] || [];  
        this.listener[event].push({  
            once: true,  
            fn  
        });  
    }  

    off(event, fn) {  
        if (!fn) {  
            this.listener[event] = [];  
        } else {  
            this.listener[event] && this.listener[event].forEach(v => {  
                v.off = true;  
            });  
        }  
    }  
}  

const _navigateTo = uni.navigateTo;  
uni.navigateTo = function(option) {  
    //console.log('navigateTo', option);  
    const ec = new EventChannel();  

    option.events && Object.keys(option.events).forEach(e => {  
        ec.on(e, option.events[e]);  
    })  

    //打开孙页面，如果子页面中eventChannel未取，则主动取  
    if (__ec__) {  
        const instance = getApp().$route.matched[0].instances.default.$children[0].$children[1].$children[0];  
        instance.__ec__ = __ec__;  
        // __ec__ = undefined; //无用代码  
    }  

    _navigateTo({  
        ...option,  
        success: (res) => {  
            __ec__ = ec;  

            res.eventChannel = ec;  
            option.success && option.success(res);  
        }  
    });  
};  

let __ec__ = undefined;  

Vue.prototype.getOpenerEventChannel = function() {  
    return this.__ec__ || __ec__;  
}  
// #endif  

// #ifdef MP-WEIXIN  
//兼容微信原始写法  
Vue.prototype.getOpenerEventChannel = function() {  
    return this.$scope.getOpenerEventChannel();  
}  
// #endif