A simple implementation of UIWebView with Blocks instead of a messy delegate.
Objective-C

README.md

UIWebView-Blocks

UIWebView+Blocks is no longer being actively maintained! The currently developed Swift version is SMWebView.

UIWebView+Blocks is A simple category that implements blocks into UIWebView. This allows you to use the power of blocks instead of implementing a delegate.

USAGE FOR NSURLRequests

Instead of allocating a new UIWebView and assigning a delegate, just call one of the static methods:

UIWebView *webView = [UIWebView loadRequest:[NSURLRequest requestWithURL: [NSURL URLWithString:@"http://google.com"]]
                                     loaded:^(UIWebView *webView) {
                                         NSLog(@"Loaded successfully");
                                     }
                                     failed:^(UIWebView *webView, NSError *error) {
                                         NSLog(@"Failed loading %@", error);
                                     }];

OR

UIWebView *webView = [UIWebView loadRequest:[NSURLRequest requestWithURL: [NSURL URLWithString:@"http://google.com"]]
                                     loaded:^(UIWebView *webView) {
                                         NSLog(@"Loaded successfully");
                                     }
                                     failed:^(UIWebView *webView, NSError *error) {
                                         NSLog(@"Failed loading %@", error);
                                     }
                                loadStarted:^(UIWebView *webView) {
                                    NSLog(@"Started loading %@", webView.request.URL.absoluteString);
                                }
                                 shouldLoad:^BOOL(UIWebView *webView, UIWebViewNavigationType navigationType) {
                                     return YES;
                                 }];

USAGE FOR HTML Strings

UIWebView *webView = [UIWebView loadHTMLString:htmlString
                                        loaded:^(UIWebView *) {
                                            NSLog(@"Loaded successfully");
                                        }
                                        failed:^(UIWebView *, NSError *) {
                                             NSLog(@"Failed loading %@", error);
                                        }];

OR

UIWebView *webView = [UIWebView loadHTMLString:htmlString
                                        loaded:^(UIWebView *) {
                                            NSLog(@"Loaded successfully");
                                        }
                                        failed:^(UIWebView *, NSError *) {
                                             NSLog(@"Failed loading %@", error);
                                        }
                                   loadStarted:^(UIWebView *webView) {
                                       NSLog(@"Started loading %@", webView.request.URL.absoluteString);
                                   }
                                    shouldLoad:^BOOL(UIWebView *webView, NSURLRequest *request, UIWebViewNavigationType navigationType) {
                                        return YES;
                                    }];

The class will return the UIWebView object which you can later add as a subview to your current view.

webView.frame = [[UIScreen mainScreen] bounds];
[self.view addSubview: webView];

Note: UIWebView+Blocks currently doesn't support the simultaneous usage of multiple UIWebViews in the same view.

TRUE ENDING REPORTING

In UIWebView+Blocks.h, set TRUE_END_REPORT to YES if you wish to get notified only when the page is fully loaded instead of being notified every time a resource is loaded (default UIWebViewDelegate behavior). This feature is still under beta and might not work perfectly at all times.

LICENSE

Copyright (C) 2013 Developed by Shai Mishali

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.