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JavaScript/native bridge for iOS's UIWebView

View BIWebViewDelegate.m
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- (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]
stringByReplacingPercentEscapes];
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *error;
id parameters = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers
error:&error];
if (!error) {
// TODO: Logic based on parameters
}
}
return NO;
}
View BIWebViewDelegate.m
1 2 3 4 5 6 7 8 9 10
var sendObjectMessage = function(parameters) {
var iframe = document.createElement('iframe');
iframe.setAttribute('src', 'js:' + JSON.stringify(parameters));
 
document.documentElement.appendChild(iframe);
iframe.parentNode.removeChild(iframe);
iframe = null;
};
 
sendObjectMessage({name: 'Bryan', company: 'Tumblr'});

Nice!

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

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