iOS 如何计算UIWebView的ContentSize

首选要等UIWebView加载内容后,然后在它的回调方法里将webview的高度Height设置足够小,就设置为1吧,因为这样才能用
sizeThatFits才能计算出webview得内容大小
- (void)webViewDidFinishLoad:(UIWebView *)aWebView {
    CGRect frame = aWebView.frame;
    frame.size.height = 1;
    aWebView.frame = frame;
    CGSize fittingSize = [aWebView sizeThatFits:CGSizeZero];
    frame.size = fittingSize;
    aWebView.frame = frame;

    NSLog(@"size: %f, %f", fittingSize.width, fittingSize.height);
}

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原文地址:https://www.cnblogs.com/zsw-1993/p/4879501.html