Please Jump 请使用这个库，它更加完善 to here.

WebViewJavascriptBridge

An iOS/OSX bridge for sending messages between Obj-C and JavaScript in WKWebViews. Also easy to get js console.log.

More simple more light. Refactor WebViewJavascriptBridge with AOP

How to use ?

Installation with CocoaPods

Add this to your podfile and run pod install to install:

pod 'SKJavaScriptBridge', '~> 1.0.3'

If you can't find the last version, maybe you need to update local pod repo.

pod repo update

Manual installation

Drag the WebViewJavascriptBridge folder into your project.

In the dialog that appears, uncheck "Copy items into destination group's folder" and select "Create groups for any folders".

Usage

1. Import the header file and declare an ivar property:

#import "WebViewJavascriptBridge.h"

@property (nonatomic, strong) WKWebView *webView;
@property (nonatomic, strong) WebViewJavascriptBridge* bridge;

    self.webView = [[WKWebView alloc] initWithFrame:self.view.bounds];
    [self.view addSubview:self.webView];
    if(!_bridge){
              _bridge = [WebViewJavascriptBridge bridgeForWebView:self.webView
              showJSconsole:YES
              enableLogging:YES];
       }

2. Register a handler in ObjC, and call a JS handler:

[_bridge registerHandler:@"ObjC Echo" handler:^(id data, WVJBResponseCallback responseCallback) {
	NSLog(@"ObjC Echo called with: %@", data);
	responseCallback(data);
}];
[_bridge callHandler:@"JS Echo" data:nil responseCallback:^(id responseData) {
	NSLog(@"ObjC received response: %@", responseData);
}];

3. Copy and paste setupWebViewJavascriptBridge into your JS:

function setupWebViewJavascriptBridge(callback) {
	 return callback(WebViewJavascriptBridge); 
}

5. Finally, call setupWebViewJavascriptBridge and then use the bridge to register handlers and call ObjC handlers:

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)
	})
})