摘要：
新建3个ViewController的类新建main.stroyboard，并配置好相应的布局（编辑界面，连接视图与类，ViewController的Storyboard ID，连接3个Button的响应事件）删除app delegate中didFinishLaunchingWithOptions中... 阅读全文
摘要：
配置应用级别的旋转方向——Global Setting方法：点击项目-General-Deployment-Device OrientationIt doesn’t necessarily mean that every view in your application will use all o... 阅读全文