如何使应用程序支持方向

Question

-(void)viewWillAppear:(BOOL)animated
{

view1=[[BIDViewController alloc]initWithNibName:@"BIDViewController" bundle:nil];
[self willAnimateRotationToInterfaceOrientation:view1.interFaceOrientaion1 duration:1];
 }

-(void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

     -(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{

if (toInterfaceOrientation == UIInterfaceOrientationPortrait)
{
    lable1.frame=CGRectMake(100 ,102 ,225 , 21);
    [self setInterFaceOrientaion2:toInterfaceOrientation];
}

if(toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft)
{
    lable1.frame=CGRectMake(250, 116,225 ,21);
        [self setInterFaceOrientaion2:toInterfaceOrientation];
}
else if(toInterfaceOrientation == UIInterfaceOrientationLandscapeRight){
    lable1.frame=CGRectMake(250, 116, 225, 21);
    [self setInterFaceOrientaion2:toInterfaceOrientation];
}

}

@end

BIDViewController类可以访问属性interFaceOrientation2， 但是BIDViewController2类无法访问属性interFaceOrientation 想@class BIDViewController在场。

如何访问此内容。

Answer 1

而不是按以下方式调用属性更改 在viewWillAppear方法中检查方向如下所示

UIInterfaceOrientation orientation=[[UIApplication sharedApplication] statusBarOrientation];
[self willAnimateRotationToInterfaceOrientation:orientation duration:1];