WebView相关东西

拦截请求及获取相关宽高

- (void)viewDidLoad {
    [super viewDidLoad];
    str = @"http://huiyi.chinabyte.com/uploadfile/w/h5.html";
    arrays = [[NSMutableArray alloc]init];
    UIWebView *webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 300)];
    url2 = [NSURL URLWithString:str];
    webView.scrollView.scrollEnabled = YES;
    NSURLRequest *request = [NSURLRequest requestWithURL:url2];
    [webView loadRequest:request];
    webView.delegate = self;
    [self.view addSubview:webView];
}
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{
    NSLog(@"打印当前请求的数据地址==%@",[request URL]);
    url1 = [request URL];
    NSString * urlStr = [url1 absoluteString];//将URL转换成字符串
    [arrays addObject:urlStr];
    NSLog(@"num ===%ld",arrays.count);
    if ([arrays[0] isEqualToString:str]) {
        return YES;
    }else{
        NextViewController * next = [[NextViewController alloc]init];
        next.requestStr = arrays[0];
        [self.navigationController pushViewController:next animated:YES];
        return NO;
    }
}
- (void)webViewDidStartLoad:(UIWebView *)webView{
    NSLog(@"开始");
}
- (void)webViewDidFinishLoad:(UIWebView *)webView{
    NSLog(@"当前页面地址 == %@", webView.request.URL.absoluteString);
    [arrays removeAllObjects];//请求结束清空数组
    //控制显示区域
    float wide = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.offsetWidth;"] floatValue];
    float height = [[webView stringByEvaluatingJavaScriptFromString:@"document.body.offsetHeight;"] floatValue];
    NSLog(@"wide==%f",wide);
    NSLog(@"height==%f",height);
}