判斷ios螢幕方向放置狀態。

- (void)Orientations

{

//宣告一個UIDevice指標，並取得目前Device的狀況

UIDevice *device = [UIDevicecurrentDevice] ;

//取得當前Device的方向，來當做判斷。（Device的方向型為Integer）

switch (device.orientation) {

caseUIDeviceOrientationFaceUp:

NSLog(@"螢幕朝上平躺");

break;

caseUIDeviceOrientationFaceDown:

NSLog(@"螢幕朝下平躺");

break;

//

caseUIDeviceOrientationUnknown:

NSLog(@"未知方向");

break;

caseUIDeviceOrientationLandscapeLeft:

NSLog(@"螢幕向左橫置");

break;

caseUIDeviceOrientationLandscapeRight:

NSLog(@"螢幕向右橫置");

break;

caseUIDeviceOrientationPortrait:

NSLog(@"螢幕直立");

break;

caseUIDeviceOrientationPortraitUpsideDown

NSLog(@"螢幕直立，上下顛倒");

break;

default:

NSLog(@"無法辨認");

break;

    }

}