ios 监听设备旋转方向

-(void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
    if(fromInterfaceOrientation == UIInterfaceOrientationLandscapeLeft || fromInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
    {

    }

if (self.interfaceOrientation == UIDeviceOrientationPortrait){

NSLog(@"竖直");

}

elseif(self.interfaceOrientation == UIDeviceOrientationLandscapeLeft)

{

NSLog(@"水平向左");

}

elseif(self.interfaceOrientation == UIDeviceOrientationLandscapeLeft)

{

NSLog(@"水平向左");

}

}