使用的组件dsbridge.js

var bridge = {default:this,// for typescriptcall: function (method, args, cb) {var ret = '';if (typeof args == 'function') {cb = args;args = {};}var arg={data:args===undefined?null:args}if (typeof cb == 'function') {var cbName = 'dscb' + window.dscb++;window[cbName] = cb;arg['_dscbstub'] = cbName;}arg = JSON.stringify(arg)//if in webview that dsBridge provided, call!if(window._dsbridge){ret=  _dsbridge.call(method, arg)}else if(window._dswk||navigator.userAgent.indexOf("_dsbridge")!=-1){ret = prompt("_dsbridge=" + method, arg);}return  JSON.parse(ret||'{}').data},register: function (name, fun, asyn) {var q = asyn ? window._dsaf : window._dsfif (!window._dsInit) {window._dsInit = true;//notify native that js apis register successfully on next event loopsetTimeout(function () {bridge.call("_dsb.dsinit");}, 0)}if (typeof fun == "object") {q._obs[name] = fun;} else {q[name] = fun}},registerAsyn: function (name, fun) {this.register(name, fun, true);},hasNativeMethod: function (name, type) {return this.call("_dsb.hasNativeMethod", {name: name, type:type||"all"});},disableJavascriptDialogBlock: function (disable) {this.call("_dsb.disableJavascriptDialogBlock", {disable: disable !== false})}
};!function () {if (window._dsf) return;var _close=window.close;var ob = {//保存JS同步方法_dsf: {_obs: {}},//保存JS异步方法_dsaf: {_obs: {}},dscb: 0,dsBridge: bridge,close: function () {if(bridge.hasNativeMethod('_dsb.closePage')){bridge.call("_dsb.closePage")}else{_close.call(window)}},_handleMessageFromNative: function (info) {var arg = JSON.parse(info.data);var ret = {id: info.callbackId,complete: true}var f = this._dsf[info.method];var af = this._dsaf[info.method]var callSyn = function (f, ob) {ret.data = f.apply(ob, arg)bridge.call("_dsb.returnValue", ret)}var callAsyn = function (f, ob) {arg.push(function (data, complete) {ret.data = data;ret.complete = complete!==false;bridge.call("_dsb.returnValue", ret)})f.apply(ob, arg)}if (f) {callSyn(f, this._dsf);} else if (af) {callAsyn(af, this._dsaf);} else {//with namespacevar name = info.method.split('.');if (name.length<2) return;var method=name.pop();var namespace=name.join('.')var obs = this._dsf._obs;var ob = obs[namespace] || {};var m = ob[method];if (m && typeof m == "function") {callSyn(m, ob);return;}obs = this._dsaf._obs;ob = obs[namespace] || {};m = ob[method];if (m && typeof m == "function") {callAsyn(m, ob);return;}}}}for (var attr in ob) {window[attr] = ob[attr]}bridge.register("_hasJavascriptMethod", function (method, tag) {var name = method.split('.')if(name.length<2) {return !!(_dsf[name]||_dsaf[name])}else{// with namespacevar method=name.pop()var namespace=name.join('.')var ob=_dsf._obs[namespace]||_dsaf._obs[namespace]return ob&&!!ob[method]}})
}();
//
// module.exports = bridge;

H5主动调用原生方法以及返回数据

dsBridge.call('device.getDeviceNum',function(v){var json =  JSON.parse(v)console.log('获取到的原生设备',json)})

function echoSyn() {// call function with namespacevar ret=dsBridge.call("echo.syn",{msg:" I am echoSyn call", tag:1});alert(JSON.stringify(ret))
}

原生主动调用H5方法

原生代码

[dwebview callHandler:@"addValue" arguments:@[@3,@4] completionHandler:^(NSNumber * value){NSLog(@"%@",value);
}];[dwebview callHandler:@"syn.addValue" arguments:@[@5,@6] completionHandler:^(NSDictionary * _Nullable value) {NSLog(@"Namespace syn.addValue(5,6): %@",value);}];

H5端代码
 

dsBridge.register('addValue', function (r, l) {return r + l;
})// namespace test for syn functionsdsBridge.register("syn", {tag: "syn",addValue:function (r,l) {return r+l;}})