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WebViewJavascriptBridge是一个iOS/OSX桥梁，连接了Obj-C与UIWebViews/WebViews之间的传送信息。
安装（iOS&OSX）
用CocoaPods安装
将如下加入到你的podfile，开题报告，然后运行 pod install 去安装
`pod 'WebViewJavascriptBridge', '~> 5.0'`手动安装
将 WebViewJavascriptBridge 文件夹拖拽到你的项目中。
1.import头文件，声明属性
#import 'WebViewJavascriptBridge.h' @property WebViewJavascriptBridge* bridge;2.整合WebViewjavascriptBridge与UIWebView或者WebView
self.bridge = [WebViewJavascriptBridge bridgeForWebView:webView];3，在ObjC注册一个处理器，论文，然后调用一个JS处理器
[self.bridge registerHandler:@'ObjC Echo' handler:^(id data, WVJBResponseCallback responseCallback) { NSLog(@'ObjC Echo called with: %@', data); responseCallback(data); }]; [self.bridge callHandler:@'JS Echo' responseCallback:^(id responseData) { NSLog(@'ObjC received response: %@', responseData); }];4.复制粘贴 setupWebViewJavascriptBridge 到你的JS
function setupWebViewJavascriptBridge(callback) { if (window.WebViewJavascriptBridge) { return callback(WebViewJavascriptBridge); } if (window.WVJBCallbacks) { return window.WVJBCallbacks.push(callback); } window.WVJBCallbacks = [callback]; var WVJBIframe = document.createElement('iframe'); WVJBIframe.style.display = 'none'; WVJBIframe.src = 'wvjbscheme://__BRIDGE_LOADED__'; document.documentElement.appendChild(WVJBIframe); setTimeout(function() { document.documentElement.removeChild(WVJBIframe) }, 0) }5.最后，调用 setupWebViewJavascriptBridge ，然后使用注册处理器与调用ObjC处理器的桥接：
setupWebViewJavascriptBridge(function(bridge) { /* Initialize your app here */ bridge.registerHandler('JS Echo', function(data, responseCallback) { console.log('JS Echo called with:', data) responseCallback(data) }) bridge.callHandler('ObjC Echo', {'key':'value'}, function responseCallback(responseData) { console.log('JS received response:', responseData) }) })
