IOS USES UIWebView to load web pages files and html

UIWebView is a box used to load web page data. UIWebView can be used to load pdf word doc and so on

There are two ways to generate webview:

1. Drag and drop via storyboard

2. Initialize with alloc init

Create webview, in the following text _webView.dataDetectorTypes = UIDataDetectorTypeAll; Is to identify the type in webview. For example, when there is a phone number in webview, you can call directly by clicking on the number

- (UIWebView *)webView 
{ 
if (!_webView) { 
_webView = [[UIWebView alloc] initWithFrame:self.view.bounds]; 
_webView.dataDetectorTypes = UIDataDetectorTypeAll; 
} 
return _webView; 
} 

Page loading

//  Lets the browser load the specified string , use m.baidu.com To search  
- (void)loadString:(NSString *)str 
{ 
// 1. URL  Locate resources , Where the resource is needed  
NSString *urlStr = str; 
if (![str hasPrefix:@"http://"]) { 
urlStr = [NSString stringWithFormat:@"http://m.baidu.com/s?word=%@", str]; 
} 
NSURL *url = [NSURL URLWithString:urlStr]; 
// 2.  the URL Tell the server , request , from m.baidu.com The request data  
NSURLRequest *request = [NSURLRequest requestWithURL:url]; 
// 3.  Send the request to the server  
[self.webView loadRequest:request]; 
} 

Loading html

// HTML Is the design language of web pages  
// <> Said mark </> 
//  Application scenarios : Intercept something in a web page 1 Part of a display  
//  For example, : The full content of the page contains ads ! After loading the page , Take the advertising part HTML delete , And then load it  
//  Used by many news applications  
[self.webView loadHTMLString:@"<p>Hello</p>" baseURL:nil];

Load local files

#pragma mark -  Load the file  
- (void)loadFile 
{ 
//  Application scenarios : Load the file downloaded from the server , For example, pdf, or word, Pictures and so on  
NSURL *fileURL = [[NSBundle mainBundle] URLForResource:@" about .txt" withExtension:nil]; 
NSURLRequest *request = [NSURLRequest requestWithURL:fileURL]; 
[self.webView loadRequest:request]; 
} 

Load the local file in a level 2 fashion

#pragma  In order to 2 Load files in the form of base data  
- (void)loadDataFile 
{ 
//  The most common 1 Kind of circumstance  
//  Open the IE, Visit the web site , Prompt you to install Flash The plug-in  
//  If you don't have this application , It is impossible to use UIWebView Open the corresponding file  
//  Application scenarios : Load the file downloaded from the server , For example, pdf, or word, Pictures and so on  
NSURL *fileURL = [[NSBundle mainBundle] URLForResource:@"iOS 7 Programming Cookbook.pdf" withExtension:nil]; 
NSURLRequest *request = [NSURLRequest requestWithURL:fileURL]; 
//  The server's response object , The server receives the request and returns it to the client  
NSURLResponse *respnose = nil; 
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&respnose error:NULL]; 
NSLog(@"%@", respnose.MIMEType); 
//  in iOS The development of , If it's not a special requirement , All text encoding is used UTF8 
//  Use first UTF8 Interpret what is received 2 Base data flow  
[self.webView loadData:data MIMEType:respnose.MIMEType textEncodingName:@"UTF8" baseURL:nil]; 
}

The above is the site for you to use UIWebView IOS loading web pages, files, html method, I hope to help you.