计算webView的 高度 和自适应屏幕大小
- (void)webViewDidFinishLoad:(UIWebView *)webView{
[webView stringByEvaluatingJavaScriptFromString:
@"var script = document.createElement(‘script‘);"
"script.type = ‘text/javascript‘;"
"script.text = \"function ResizeImages() { "
"var myimg,oldwidth;"
"var maxwidth=305;" //缩放系数
"for(i=0;i <document.images.length;i++){"
"myimg = document.images[i];"
"if(myimg.width > maxwidth){"
"oldwidth = myimg.width;"
"myimg.width = maxwidth;"
"}"
"}"
"}\";"
"document.getElementsByTagName(‘head‘)[0].appendChild(script);"];
[webView stringByEvaluatingJavaScriptFromString:@"ResizeImages();"];
CGRect frame = webView.frame;
frame.size.height = 1;
webView.frame = frame;
CGSize fittingSize = [webView sizeThatFits:CGSizeZero];
frame.size = fittingSize;
webView.frame = frame;
[self updateScrollViews:frame];
}
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