关于webView的使用方法还是比较简单的。
直接上代码
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@interface ViewController () <UIWebViewDelegate>//使用代理
{ UIWebView *webView;
UIView *_coverView;
UIActivityIndicatorView *_activityIndicator;//风火轮
}@end@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//获取当前屏幕的宽高
int ScreenHeight = [[UIScreen mainScreen] bounds].size.height;
int ScreenWidth = [[UIScreen mainScreen] bounds].size.width;
//获取状态栏的高度
CGRect statusBarRect = [[UIApplication sharedApplication] statusBarFrame];
int statusBarHeight = statusBarRect.size.height;
//设置状态栏的尺寸，位置
webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, statusBarHeight, ScreenWidth, ScreenHeight - statusBarHeight)];
//设置请求的URL
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.baidu.com"]];
[self.view addSubview:webView];
//设置webView的代理
webView.delegate = self;
//加载这个URL
[webView loadRequest:request];
//smallBgView
_coverView = [[UIView alloc] initWithFrame:CGRectMake(0, statusBarHeight, ScreenWidth, ScreenHeight - statusBarHeight)];
_coverView.backgroundColor = [UIColor blackColor];
_coverView.alpha = 0.5;
//Activity Indicator
_activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake((ScreenWidth - 30)/2 , (ScreenHeight - statusBarHeight - 30)/2, 30, 30)];
_activityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyleGray;
_activityIndicator.hidesWhenStopped = YES;
_activityIndicator.color = [UIColor whiteColor];
_activityIndicator.alpha = 1.0;
[_coverView addSubview:_activityIndicator];
}//在webView开始加载时会调用该函数，我们在这里显示coverView- (void)webViewDidStartLoad:(UIWebView *)webView
{ [self.view addSubview:_coverView];
[_activityIndicator startAnimating];
}//在webView加载完毕时会调用该函数，我们在这里把coverView移除掉- (void)webViewDidFinishLoad:(UIWebView *)webView
{ [_coverView removeFromSuperview];
[_activityIndicator stopAnimating];
} |
看下演示效果
放个demo，供大家联系
WebViewTest
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