iOS开发：UIWebView

 

iOS开发：UIWebView控件

初始化：

_webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 20, 375, 647)];

    [self.view addSubview:_webView];

//给webView一个URL

    NSURL *url = [NSURL URLWithString:@"http://www.baidu.com"];

    NSURLRequest *request = [NSURLRequest requestWithURL:url];

    [_webView loadRequest:request];

    //添加一个button,使其触发后退、刷新等事件：

    UIButton *button = [UIButton buttonWithType: UIButtonTypeSystem];

    button.layer.borderWidth = 2.0;

    [button setTitle:@"刷新/退出" forState:UIControlStateNormal];

    button.frame = CGRectMake(325, 0, 50, 50);

    [self.view addSubview:button];

    [button addTarget:self action:@selector(buttonAction) forControlEvents:UIControlEventTouchUpInside ];

    

}

- (void)buttonAction{

  [_webView goBack];

    [_webView reload];

}