加载网页——iOS学习连载28

- (instancetype)initWithNibName:(NSString*)nibNameOrNil bundle:(NSBundle*)nibBundleOrNil
{
    self = [superinitWithNibName:nibNameOrNilbundle:nibBundleOrNil];
    if(self)
    {
        self.hidesBottomBarWhenPushed= YES;
    }
   
    return self;
   
}

- (void)viewDidLoad {
    [superviewDidLoad];

   //新建网页视图
    webView = [[UIWebViewalloc]initWithFrame:self.view.bounds];
   
    //网页视图自适应屏幕尺寸
    webView.scalesPageToFit= YES;
   
    //设置代理
    webView.delegate= self;
   

//    //加载百度网页

//    //创建request对象

//    NSMutableURLRequest *mRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.baidu.com"]];
//   
//    //网页控件加载一个网络请求
//    [webView loadRequest:mRequest];
   
    [self.viewaddSubview:webView];
   
    //初始化风火轮
    UIActivityIndicatorView *activity = [[UIActivityIndicatorViewalloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
   
    UIBarButtonItem *rightBtn = [[UIBarButtonItemalloc]initWithCustomView:activity];
   
    self.navigationItem.rightBarButtonItem= rightBtn;
   
    [self_loadData];

}

//加载本地html网页

- (void)_loadData
{
    NSString *filePath = [[NSBundlemainBundle]pathForResource:@"news"ofType:@"html"];
   
    NSError *error = nil;
   
    NSString *str = [NSStringstringWithContentsOfFile:filePathencoding:NSUTF8StringEncodingerror:&error];
   
    NSDictionary *dic = [DataServiecerequestData:news_detail];
   
    NSString *title = [dicobjectForKey:@"title"];
    NSString *source = [dicobjectForKey:@"source"];
    NSString *time = [dicobjectForKey:@"time"];
    NSString *content = [dicobjectForKey:@"content"];
    NSString *author = [dicobjectForKey:@"author"];
   
    NSString *htmlStr = [NSStringstringWithFormat:str,title,source,time,content,author];
    [webViewloadHTMLString:htmlStrbaseURL:nil];
   
}

#pragma mark -UIWebViewDelegate
//将要加载某个请求
- (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType
{
    return YES;
}

//已经开始加载
- (void)webViewDidStartLoad:(UIWebView*)webView
{
    UIActivityIndicatorView *activity = (UIActivityIndicatorView*)self.navigationItem.rightBarButtonItem.customView;
    [activity startAnimating];
}

//结束加载
- (void)webViewDidFinishLoad:(UIWebView*)webView
{
    UIActivityIndicatorView *activity = (UIActivityIndicatorView*)self.navigationItem.rightBarButtonItem.customView;
    [activity stopAnimating];
}

//加载出错
- (void)webView:(UIWebView*)webView didFailLoadWithError:(NSError*)error
{
   

}