手动设置界面方向

Question

有没有简单的方法来手动设置界面方向？我需要将界面设置为纵向，即使装载期间设备方向可能处于横向。有点想远离CGAffineTransforms。

Answer 1

一种方法，我知道这对我的作品（并且是一个黑客位，并可以改变到你想要的方向之前显示一个方向）是：

- (void)viewDidAppear:(BOOL)animated 
{ 
    [super viewDidAppear:animated]; 

    UIApplication* application = [UIApplication sharedApplication]; 

    if (application.statusBarOrientation != UIInterfaceOrientationPortrait) 
    { 
     UIViewController *c = [[UIViewController alloc]init]; 
     [self presentModalViewController:c animated:NO]; 
     [self dismissModalViewControllerAnimated:NO]; 
     [c release]; 
    } 
} 

Answer 2

覆盖它来控制方向，直到装...

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation 

Answer 3

首先，设置你的应用程序和观点，只支持人像，然后使用从我的重构库中提取的这一类方法，es_ios_utils：

@interface UIViewController(ESUtils) 
    // Forces without using a private api. 
    -(void)forcePortrait; 
@end 

@implementation UIViewController(ESUtils) 

-(void)forcePortrait 
{ 
    //force portrait orientation without private methods. 
    UIViewController *c = [[UIViewController alloc] init]; 
    [self presentModalViewController:c animated:NO]; 
    [self dismissModalViewControllerAnimated:NO]; 
    [c release]; 
} 

@end 

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