iPhone控件之UIWebView2

最新推荐文章于 2017-01-07 23:37:06 发布

转载最新推荐文章于 2017-01-07 23:37:06 发布 · 61 阅读

本文介绍了一个简单的iOS应用示例，该应用使用UIWebView加载本地HTML文件，并通过代理方法处理页面点击链接的情况。

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 1 #import <UIKit/UIKit.h>
 2 
 3 @interface UITestViewController : UIViewController <UIWebViewDelegate>
 4 {
 5 
 6 }
 7 
 8 @end
 9 
10 
11 //
12 //  UITestViewController.m
13 //  UITest
14 //
15 
16 #import "UITestViewController.h"
17 
18 @implementation UITestViewController
19 
20 - (void)viewDidLoad {
21   
22   [super viewDidLoad];
23   
24   CGRect webRect = CGRectMake(10,10,300,400);
25   UIWebView *myWebView = [[UIWebView alloc] initWithFrame:webRect];
26   
27   myWebView.delegate = self;
28   
29   myWebView.scalesPageToFit = NO;
30   NSString *htmlPath = [[NSBundle mainBundle] pathForResource:@"myPage" ofType:@"html"];
31   NSString *htmlContent = [NSString stringWithContentsOfFile:htmlPath encoding:NSUTF8StringEncoding error:nil];
32   
33   [myWebView loadHTMLString:htmlContent baseURL:nil];
34   
35   [self.view addSubview:myWebView];
36   
37   [myWebView release];
38 }
39 
40 - (BOOL)webView:(UIWebView *)webView 
41 shouldStartLoadWithRequest:(NSURLRequest *)request 
42  navigationType:(UIWebViewNavigationType)navigationType {
43   NSURL *pageURL = [request URL];
44   
45   if ( ([[pageURL scheme] isEqualToString: @"http"]) && (navigationType == UIWebViewNavigationTypeLinkClicked ))
46   {
47     [[UIApplication sharedApplication] openURL:pageURL];
48     return NO;
49   }
50   
51   return YES;
52 }
53 
54 
55 - (void)didReceiveMemoryWarning {
56   // Releases the view if it doesn't have a superview.
57   [super didReceiveMemoryWarning];
58   
59   // Release any cached data, images, etc that aren't in use.
60 }
61 
62 - (void)viewDidUnload {
63   // Release any retained subviews of the main view.
64 // e.g. self.myOutlet = nil;
65 }
66 
67 
68 - (void)dealloc {
69   
70   [super dealloc];
71 }
72 
73 @end