github Object-C javascript 消息互通 WebViewJavascriptBridge

WebViewJavascriptBridge：github地址

如何使用：

1) 把WebViewJavascriptBridge文件夹添加到工程中

2) 导入文件，并添加相关属性

#import "WebViewJavascriptBridge.h"

……

@property WebViewJavascriptBridge* bridge;

3) 初始化

self.bridge = [WebViewJavascriptBridge bridgeForWebView:webView handler:^(id data, WVJBResponseCallback responseCallback) {
NSLog(@"Received message from javascript: %@", data);
responseCallback(@"Right back atcha");
}];

4) ObjC 向 javascript发送消息

[self.bridge send:@"Well hello there"];
[self.bridge send:[NSDictionary dictionaryWithObject:@"Foo" forKey:@"Bar"]];
[self.bridge send:@"Give me a response, will you?" responseCallback:^(id responseData) {
NSLog(@"ObjC got its response! %@", responseData);
}];

5) 设置javascript消息处理

function connectWebViewJavascriptBridge(callback) {
if (window.WebViewJavascriptBridge) {
callback(WebViewJavascriptBridge)
} else {
document.addEventListener('WebViewJavascriptBridgeReady', function() {
callback(WebViewJavascriptBridge)
}, false)
}
}

connectWebViewJavascriptBridge(function(bridge) {

/* Init your app here */

bridge.init(function(message, responseCallback) {
alert('Received message: ' + message)
if (responseCallback) {
responseCallback("Right back atcha")
}
})
bridge.send('Hello from the javascript')
bridge.send('Please respond to this', function responseCallback(responseData) {
console.log("Javascript got its response", responseData)
})
})