摘要：
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation //已经相当弱化- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window//新增Api，与info.plist设备支持旋转方向神似（区别在于default.png）且注意与UIInterfaceOrientation不同的是这的NSUIntege 阅读全文
