问题
This works in all my test browsers:
<body onresize="handleResize()">
// Aint perfect, but works well enough!
function handleResize()
{
// Document.ready sets initialWidth = window.innerWidth;
var zoomAmount = Math.round((initialWidth / window.innerWidth) * 100);
$('#db').html(zoomAmount);
}
On iPhone when I use two fingers to zoom in and out, this number is not updated.
How can I trigger an event when the iPhone user zooms?
回答1:
You can't. When you pinch to zoom on the iPhone web kit, you're not actually resizing the view of the web page in the same sense as when you resize a browser window -- notice that the content doesn't reflow. All the iPhone is doing is blowing up a certain section of the complete web content.
来源：https://stackoverflow.com/questions/5221446/iphone-detect-zoom-help