iOS開發之判斷橫豎屏

判斷橫屏
if ([UIApplication sharedApplication].statusBarOrientation == UIDeviceOrientationLandscapeRight || 
[UIApplication sharedApplication].statusBarOrientation == UIDeviceOrientationLandscapeLeft) {
    //當前橫屏
} else {
   //當前豎屏
}

判斷豎屏
if ([UIApplication sharedApplication].statusBarOrientation == UIDeviceOrientationPortrait || 
[UIApplication sharedApplication].statusBarOrientation == UIDeviceOrientationPortraitUpsideDown) {
    //當前豎屏
} else {
   //當前橫屏
}