JKWWebviewBridge

An iOS bridge for sending messages between Obj-C and JavaScript in WKWebview for iOS8+, and include Progress bar show loading status in UIView.

Setup

To use a JKWWebviewBridge in your own project:

1. Import framework

   JKWWebviewBridge.framework:

2. Include header file

   #import "JKWWebviewBridge.h"

3. init

   initWithFrame:(CGRect)frame withHtmlData (NSString*)htmlData withBaseURL:(NSURL*)bsURL delegate:(id)delegate rootViewController:(UIViewController *)rootViewController

Support

iOS 8 +

API Reference

ObjC API

initWithFrame:(CGRect)frame withHtmlData (NSString*)htmlData withBaseURL:(NSURL*)bsURL delegate:(id<JKWBridgeDelegate>)delegate rootViewController:(UIViewController *)rootViewController

Create a JKWBridge View support interaction between Objc and Javascript.

[bridge send:(id)data]

[bridge send:(id)data responseCallback:(JKWResponseCallback)responseCallback]

Send a message to javascript. Optionally expect a response by giving a responseCallback block.

Example:

[self.bridge send:@"Hi"];
[self.bridge send:[NSDictionary dictionaryWithObject:@"Foo" forKey:@"Bar"]];
[self.bridge send:@"I expect a response!" responseCallback:^(id responseData) {
	NSLog(@"Got response! %@", responseData);
}];

[bridge registerHandler:(NSString*)handlerName handler:(JKWHandler)handler]

Register a handler called handlerName. The javascript can then call this handler with WebViewJavascriptBridge.callHandler("handlerName").

Example:

[self.bridge registerHandler:@"getScreenHeight" handler:^(id data, WVJBResponseCallback responseCallback) {
	responseCallback(data);
}];

[bridge callHandler:(NSString*)handlerName data:(id)data]

[bridge callHandler:(NSString*)handlerName data:(id)data responseCallback:(JKWResponseCallback)callback]

Call the javascript handler called handlerName. Optionally expect a response by giving a responseCallback block.

Example:

[self.bridge callHandler:@"showAlert" data:@"Hi from ObjC to JS!"];
[self.bridge callHandler:@"testJavascriptHandler" data:data responseCallback:^(id response) {
    NSLog(@"testJavascriptHandler responded: %@", response);
}];

Javascript API

bridge.send("Hi there!")

bridge.send({ Foo:"Bar" })

bridge.send(data, function responseCallback(responseData) { ... })

Send a message to ObjC. Optionally expect a response by giving a responseCallback function.

Example:

bridge.send("Hi there!")
bridge.send("Hi there!", function(responseData) {
	alert("I got a response! "+JSON.stringify(responseData))
})

bridge.registerHandler("handlerName", function(responseData) { ... })

Register a handler called handlerName. The ObjC can then call this handler with [bridge callHandler:"handlerName" data:@"Foo"] and [bridge callHandler:"handlerName" data:@"Foo" responseCallback:^(id responseData) { ... }]

Example:

bridge.registerHandler("showAlert", function(data) { alert(data) })
bridge.registerHandler("getCurrentPageUrl", function(data, responseCallback) {
	responseCallback(document.location.toString())
})

Thanks

Insights and Many program copy From WebViewJavascriptBridge.