完美解决mui软键盘弹出，页面被挤压的问题

解决方案：

var originalHeight = document.documentElement.clientHeight || document.body.clientHeight;
	window.onresize = function() {
    
    
		//软键盘弹起与隐藏  都会引起窗口的高度发生变化
		var resizeHeight = document.documentElement.clientHeight || document.body.clientHeight;
		if (resizeHeight * 1 < originalHeight * 1) {
    
     //resizeHeight<originalHeight证明窗口被挤压了
			plus.webview.currentWebview().setStyle({
    
    
				height: originalHeight
			});
		}
	}