iOS获取cell中webview的内容尺寸

#import "STBaseTableViewCell.h"@class STHTMLBaseCell;@protocol STHtmlBaseDelegate <NSObject>- (void)webViewDidLoad:(STHTMLBaseCell *)cell height:(CGFloat)height;@end@interface STHTMLBaseCell : STBaseTableViewCell@property (weak, nonatomic) id<STHtmlBaseDelegate>delegate;@end

#import "STHTMLBaseCell.h"@interface STHTMLBaseCell()<UIWebViewDelegate>@property (weak, nonatomic) IBOutlet UIWebView *webView;@end@implementation STHTMLBaseCell- (void)awakeFromNib {  [super awakeFromNib];  // Initialization code  self.webView.scrollView.scrollEnabled = NO;  self.webView.scrollView.pagingEnabled = NO;  self.webView.delegate = self;  self.webView.backgroundColor = [UIColor whiteColor];}- (void)configCellWithHtml:(NSString *)html //外界传入的html字符串{  [self.webView loadHTMLString:html baseURL:nil];//加载html}#pragma mrak - UIWebViewDelegate- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{    [webView stringByEvaluatingJavaScriptFromString:@"document.documentElement.style.webkitUserSelect='auto';"];//让用户可以选中webview里面内容  [webView stringByEvaluatingJavaScriptFromString:@"document.documentElement.style.webkitTouchCallout='auto';"];//可以响应用户的手势    NSURL *url = [request URL];  if (![url host]) {    return YES;  } return NO;}- (void)webViewDidFinishLoad:(UIWebView *)webView{  CGFloat height = [[webView stringByEvaluatingJavaScriptFromString:             @"document.body.scrollHeight"] floatValue]; //获取webview内容的高度  self.webView.height = height;  if ([self.delegate respondsToSelector:@selector(webViewDidLoad:height:)]) {    [self.delegate webViewDidLoad:self height:height];//调用代理的方法   }}@end