extjs4中Ext.resizer.Resizer 大小变更功能介绍

    var basic = Ext.create('Ext.resizer.Resizer', {
        target: 'basic',
        pinned: true,               //是否显示调节边框
        width: 200,
        height: 100,
        minWidth: 100,
        minHeight: 50,
        dynamic: true,              //动态设置
        preserveRatio: true,        //当变更大小时，长宽比例是否固定
        heightIncrement: 20,        //单次变更，高度变更值
        widthIncrement: 20,
        transparent: false          //是否彻底隐藏调节边框
    });
});