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Created September 10, 2012 02:51
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JavaScript/native bridge for iOS's UIWebView
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request
navigationType:(UIWebViewNavigationType)navigationType {
NSString *urlString = [[request URL] absoluteString];
if ([urlString hasPrefix:@"js:"]) {
NSString *jsonString = [[[urlString componentsSeparatedByString:@"js:"] lastObject]
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *error;
id parameters = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers
if (!error) {
// TODO: Logic based on parameters
return NO;
var sendObjectMessage = function(parameters) {
var iframe = document.createElement('iframe');
iframe.setAttribute('src', 'js:' + JSON.stringify(parameters));
iframe = null;
sendObjectMessage({name: 'Bryan', company: 'Tumblr'});
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Dan2552 commented Sep 11, 2014


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OlofT commented Sep 16, 2014


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Nice work and it works well in iOS8, but i think this code is a bit tricky.. hmmm

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