Introduction to the properties of UIWebview and the properties of UIWebview

Introduction to the properties of UIWebview and the properties of UIWebview

 

 

/* ViewController. h file */

# Import <UIKit/UIKit. h>

@ Interface ViewController: UIViewController

@ End

 

 

/* ViewController. m file */

# Import "ViewController. h"

 

@ Interface ViewController (){

IBOutlet UIWebView * _ webView;

}

@ End

 

 

 

 

@ Implementation ViewController

 

-(Void) viewDidLoad {// Load

[Super viewDidLoad];

/*

Three Data Loading Methods

-(Void) loadRequest :( NSURLRequest *) request;

-(Void) loadHTMLString :( NSString *) string baseURL :( NSURL *) baseURL;

-(Void) loadData :( NSData *) data MIMEType :( NSString *) MIMEType textEncodingName :( NSString *) textEncodingName baseURL :( NSURL *) baseURL;

*/

[Self loadData1]; // method 1 for loading data

[Self loadData2]; // method 2 for loading data

[Self loadData3]; // method 3 for loading data

}

 

# Pragma mark-URL data loading (Network Data)

-(Void) loadData1 {

NSURL * data = [NSURL URLWithString: @ "http://v.youku.com/v_show/id_XMTQzNTM1NzA2OA==_ev_1.html? From = y1.3-idx-uhome-1519-20887.205805-205902.1-1 "];

NSURLRequest * data1 = [NSURLRequest requestWithURL: data]; // Request

[_ WebView loadRequest: data1];

}

# Pragma mark-HTML local data loading

-(Void) loadData2 {

// Read path (from the local path)

NSString * path = [[NSBundle mainBundle] pathForResource: @ "news" ofType: @ "html"];

 

// Extract the content of this file based on the path (the content is in string format)

NSString * dataString = [[NSString alloc] initWithContentsOfFile: path encoding: NSUTF8StringEncoding error: nil]; // Content // encoding

// Add data to html

NSString * html = [NSString stringWithFormat: dataString, @ "111", @ "222", @ "333", @ "444", @ "555"];

// Load data

WebView loadHTMLString: html baseURL: nil];

}

 

 

 

 

 

 

 

 

 

# Pragma mark-HTML Network Data Loading

-(Void) loadData3 {

// Obtain the path

NSString * path = [[NSBundle mainBundle] pathForResource: @ "Baidu" ofType: @ "html"];

 

/*

NSData: When we need to write some information to a file or send it to the network, we need to convert the data, turns to a pure 0-and 1-hour stream (the NSData type is Data Stream)

*/

// Extract data based on the path (the data format is Data Stream)

NSData * data = [NSData dataWithContentsOfFile: path];

// Load html data on the network

[_ WebView loadData: data MIMEType: nil textEncodingName: nil baseURL: nil];

}

 

# Pragma mark-UIWebViewDelegate (proxy method)

 

// Called when loading data

-(BOOL) webView :( UIWebView *) webView shouldStartLoadWithRequest :( NSURLRequest *) request navigationType :( UIWebViewNavigationType) navigationType {

 

 

Return YES;

}

 

// Called when loading data

-(Void) webViewDidStartLoad :( UIWebView *) webView {

 

}

 

// Called when data loading ends

-(Void) webViewDidFinishLoad :( UIWebView *) webView {

 

}

 

// Call when an error occurs during data loading

-(Void) webView :( UIWebView *) webView didFailLoadWithError :( NSError *) error {

 

 

}