在做的app有一块是加载一个网页,从服务器拿到的是HTML字符串然后放到HTML里边显示,发现有部分图片太大了,只能看到一部分,Google了下,使用以下JS脚本,设定一个最大的宽度,当图片宽度超过这个上限值的时候,等比例缩放,
-(void)webViewDidFinishLoad:(UIWebView *)webView {
NSString *script = [NSString stringWithFormat:
@"var script = document.createElement('script');"
"script.type = 'text/javascript';"
"script.text = \"function ResizeImages() { "
"var img;"
"var maxwidth=%f;"
"for(i=0;i <document.images.length;i++){"
"img = document.images[i];"
"if(img.width > maxwidth){"
"img.width = maxwidth;"
"}"
"}"
"}\";"
"document.getElementsByTagName('head')[0].appendChild(script);", DeviceWidth - 20];
[webView stringByEvaluatingJavaScriptFromString: script];
[webView stringByEvaluatingJavaScriptFromString:@"ResizeImages();"];
}