html图片预览

在webView加载完成的代理方法中添加一下代码

[self.webView stringByEvaluatingJavaScriptFromString:@"function assignImageClickAction(){var imgs=document.getElementsByTagName(\'img\');var length=imgs.length;for(var i=0;i<length;i++){img=imgs[i];img.onclick=function(){window.location.href=\'image-preview:\'+this.src}}}"];

    

    [self.webView stringByEvaluatingJavaScriptFromString:@"assignImageClickAction();"];

在代理方法中拦截即可