[IOS]UIWebView请求网络页面或者加载本地资源页面
UIWebView是一个能够显示网页的IOS视图控件,我们可以用它来访问一个网站。下面是具体的实例:
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操作步骤:
1.首先在xib文件中拖放一个UIWebView控件到view中
2.将下载的页面以及页面资源加载到项目中,但必须选择Create folder references for any added folders,然后知道文件在项目中是蓝色显示,而不是×××显示
3.将webView的Delegate拖到File's Owner,继承UIWebView的Delegate协议,并且实现他的协议
ViewController.h:
#import@interface DXWViewController : UIViewController @property (retain, nonatomic) IBOutlet UIWebView *webview; @property(nonatomic,retain) UIAlertView *alert; @end
ViewController.m:
#import "DXWViewController.h" @interface DXWViewController () @end @implementation DXWViewController - (void)viewDidLoad { [super viewDidLoad]; NSURL *url = [NSURL URLWithString:@"http://www.baidu.com"]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; //[self.webview loadRequest:request]; //加载本地资源,html页面 NSString *str = [[NSBundle mainBundle] pathForResource:@"百度图片—全球最大中文图片库" ofType:@"html"]; str = [NSString stringWithContentsOfFile:str encoding:NSUTF8StringEncoding error:nil]; NSLog(@"%@",str); [self.webview loadHTMLString:str baseURL:[[NSBundle mainBundle] bundleURL]]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void)dealloc { [_webview release]; [_alert release]; [super dealloc]; } -(void)webViewDidFinishLoad:(UIWebView *)webView { [self.alert dismissWithClickedButtonIndex:0 animated:YES]; } -(void)webViewDidStartLoad:(UIWebView *)webView { self.alert = [[UIAlertView alloc] initWithTitle:@"Loading..." message:nil delegate:nil cancelButtonTitle:nil otherButtonTitles:nil]; [self.alert show]; UIActivityIndicatorView *aiv = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; aiv.center = CGPointMake(self.alert.bounds.size.width/2, self.alert.bounds.size.height/2); [aiv startAnimating]; [self.alert addSubview:aiv]; } @end
网页名称:[IOS]UIWebView请求网络页面或者加载本地资源页面
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