如何点开webview里面的图片实现放大缩小查看？

Question

contentWebView.loadUrl("javascript:(function(){"
+ "var objs = document.getElementsByTagName(\"img\"); "
+ "for(var i=0;i<objs.length;i++) " + "{"
+ " objs[i].onclick=function() " + " { "
+ " window.imagelistner.openImage(this.src); "
+ " } " + "}" + "})()");

            加这段js进去不好使

Answer 1

webview.setVerticalScrollbarOverlay(true); //指定的垂直滚动条有叠加样式

WebSettings settings = webview.getSettings();

settings.setUseWideViewPort(true);//设定支持viewport

settings.setLoadWithOverviewMode(true);

settings.setBuiltInZoomControls(true);

settings.setSupportZoom(true);//设定支持缩放

html界面meta标签

例如：-->设定支持缩放，最大两倍缩放