iOS webview使用

创建webView

    UIWebView  *myWebView=[[UIWebView alloc] initWithFrame:CGRectMake(0, 0,self.view.frame.size.width,self.view.frame.size.height)];

    myWebView.delegate=self;
    [myWebView setScalesPageToFit:YES];                    //自动缩放页面以适应屏幕
    NSURLRequest*request=[NSURLRequest requestWithURL:[NSURLURLWithString:urlStr]];

    [myWebView loadRequest:request];

    [self.view addSubview:myWebView];

代理的方法

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

    NSLog(@"erros is %@",error);

}

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

    NSLog(@"hello");

}

<pre name="code" class="objc">-(void)webViewDidStartLoad:(UIWebView *)webView{ 
    NSLog(@"Loading webViewDidStartLoad method"); 
} 

注意一点 url字符串中如果包含了非法字符或者中文，要使用

[urlStr stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding] 

编码一下，否则会报错：Domain=WebKitErrorDomain Code=101 "The operation couldn’t be completed.