uniapp与原生交互

1.项目中引入 DSBridge.js 文件

var bridge = {
    default: this,
    call: function(b, a, c) {
        var e = "";
        "function" == typeof a && (c = a, a = {});
        a = {
            data: void 0 === a ? null : a
        };
        if ("function" == typeof c) {
            var g = "dscb" + window.dscb++;
            window[g] = c;
            a._dscbstub = g
        }
        a = JSON.stringify(a);
        if (window._dsbridge) e = _dsbridge.call(b, a);
        else if (window._dswk || -1 != navigator.userAgent.indexOf("_dsbridge")) e = prompt("_dsbridge=" + b, a);
        return JSON.parse(e || "{}").data
    },
    register: function(b, a, c) {
        c = c ? window._dsaf : window._dsf;
        window._dsInit || (window._dsInit = !0, setTimeout(function() {
                bridge.call("_dsb.dsinit")
            },
            0));
        "object" == typeof a ? c._obs[b] = a : c[b] = a
    },
    registerAsyn: function(b, a) {
        this.register(b, a, !0)
    },
    hasNativeMethod: function(b, a) {
        return this.call("_dsb.hasNativeMethod", {
            name: b,
            type: a || "all"
        })
    },
    disableJavascriptDialogBlock: function(b) {
        this.call("_dsb.disableJavascriptDialogBlock", {
            disable: !1 !== b
        })
    }
};
! function() {
    if (!window._dsf) {
        var b = {
                _dsf: {
                    _obs: {}
                },
                _dsaf: {
                    _obs: {}
                },
                dscb: 0,
                dsBridge: bridge,
                close: function() {
                    bridge.call("_dsb.closePage")
                },
                _handleMessageFromNative: function(a) {
                    var e = JSON.parse(a.data),
                        b = {
                            id: a.callbackId,
                            complete: !0
                        },
                        c = this._dsf[a.method],
                        d = this._dsaf[a.method],
                        h = function(a, c) {
                            b.data = a.apply(c, e);
                            bridge.call("_dsb.returnValue", b)
                        },
                        k = function(a, c) {
                            e.push(function(a, c) {
                                b.data = a;
                                b.complete = !1 !== c;
                                bridge.call("_dsb.returnValue", b)
                            });
                            a.apply(c, e)
                        };
                    if (c) h(c, this._dsf);
                    else if (d) k(d, this._dsaf);
                    else if (c = a.method.split("."), !(2 > c.length)) {
                        a = c.pop();
                        var c = c.join("."),
                            d = this._dsf._obs,
                            d = d[c] || {},
                            f = d[a];
                        f && "function" == typeof f ? h(f, d) : (d = this._dsaf._obs, d = d[c] || {}, (f = d[a]) && "function" == typeof f &&
                            k(f, d))
                    }
                }
            },
            a;
        for (a in b) window[a] = b[a];
        bridge.register("_hasJavascriptMethod", function(a, b) {
            b = a.split(".");
            if (2 > b.length) return !(!_dsf[b] && !_dsaf[b]);
            a = b.pop();
            b = b.join(".");
            return (b = _dsf._obs[b] || _dsaf._obs[b]) && !!b[a]
        })
    }
}();

2.引入

import '../../util/DSBridge.js'

3.与原生交互

1.给原生传参数

var obj = {
　　data : 'getDiagnosisImg ' ,
　　name : ' img '
}
dsBridge.call ( "AddImg" , obj)

js通过dsBridge.call() 方法传值
第一个参数：AddImg是约定注册的名称，与原生接收处方法名一致；
第二个参数是要传递的参数；

2.接收原生传给uni的值

dsBridge.register ( "getDiagnosis Img" , (res) =>{
　　console.log (res)
})

第一个参数：getDiagnosisImg 是注册方法名，与原生保持一致；
第二个是js的方法，参数res就是原生返回给uni的值；