ListView头图片下拉放大效果在屏幕上按住下拉可以实现图片的放大，类似的效果可以在手机版的QQ空间看到，不过我没有想出这个例子图片放大可以应用的具体场景。-Listview head picture drop-down amplification effect in the screen hold down to achieve the picture enlarged. Similar effects can be seen in the mobile phone version of t