webview

#pragma mark UIWebViewDelegate

//开始加载

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

    [self startLoad:self.view];

}

//完成加载

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

    [self stopLoad:self.view];

//获取网页webview的名字

    self.title = [webView stringByEvaluatingJavaScriptFromString:@"document.title"];

}

//加载失败

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

    NSLog(@"加载失败～");

}

//设置UIWebView的背景颜色为透明

　　[_webView setBackgroundColor:[UIColor clearColor]];
　 [_webView setOpaque:NO]; // 一定要设为no，否则更改背景色无效

//加载html

[self._webView loadHTMLString:_mHome.Content baseURL:nil];

//拿到webview的内容宽度跟高度

CGFloat height = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight"] floatValue];

    CGFloat width = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollWidth"] floatValue];