让用户WebView访问网页时嵌入开发者自己的内容

帖子地址 http://www.cocoachina.com/bbs/read.php?tid-12051-fpage-2.html

代码

NSString *strUrl=[textField text];
NSString *urlString=[NSString stringWithFormat:strUrl];
NSURL *url=[NSURL URLWithString:urlString];
NSURLRequest *urlRequest=[NSURLRequest requestWithURL:url
cachePolicy:NSURLRequestReturnCacheDataElseLoad
timeoutInterval:60];
NSData *urlData;
NSURLResponse *response;
NSError *error;
urlData=[NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:&error];
NSString *dataStr =[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
dataStr = [dataStr substringToIndex:[dataStr length] - 16];
dataStr = [dataStr stringByAppendingString:@"hello world navy did it
"];
NSLog(@"%@",dataStr);
const char *cString = [dataStr UTF8String];
NSData *myData= [[NSData alloc]initWithBytes:cString length:strlen(cString)+1];
[self.myWebView loadData:myData MIMEType:@"text/html" textEncodingName:@"utf-8" baseURL:url];

这个代码我是在UICatalog中WebViewController中添加的,有人要这功能,小生就乘机 学习了下,嫌麻烦,直接用的UICatalog代码.见谅.
此代码功能在于:在你访问的网页左下角加了hello world navy did it.几个字.
不希望做流氓功能.一切以用户为主.