具體代碼：（需要使用到第三方等待視圖-MBProgressHUD,自己導入）
#import "ViewController.h"
#import "MBProgressHUD.h"
@interface ViewController ()<UIWebViewDelegate>
{
MBProgressHUD *HUD;
}
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// 網頁視圖
UIWebView *webView = [[UIWebView alloc]initWithFrame:self.view.frame];
[self.view addSubview:webView];
/*
//這是加載本地文件的
// - (void)loadRequest:(NSURLRequest *)request 加載本地文件 或者網頁
NSString *path = [[NSBundle mainBundle]pathForResource:@"123pdf" ofType:@"pdf"];
NSURLRequest *resquest = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:path]];
// 如果是網頁視圖 需要一個加載的請求 加載的內容 放在請求裏面
*/
// 加載網頁的
NSURLRequest *resquest = [NSURLRequest requestWithURL:[NSURL fileURLWithPath:@"https://www.baidu.com"]];
// ***** 注意要有https://
webView.delegate = self;
[webView loadRequest:resquest];
// 等待視圖
HUD = [[MBProgressHUD alloc]initWithView:self.view];
[self.view addSubview:HUD];
}
#pragma mark-WebView的代理方法
- (void)webViewDidStartLoad:(UIWebView *)webView
{
[HUD show:YES];
HUD.labelText = @"正在拼命加載";
}
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
[HUD hide:YES];
}
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error
{
NSLog(@"%@",error);
HUD.labelText = [NSString stringWithFormat:@"錯誤:無網絡"];
[HUD show:YES];
[HUD hide:YES afterDelay:3];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end