Probem與UINavigationController的

Question

我有推着視圖 - 控制。這一個問題，就是我所做的：

- (void)addAction:(id)sender 
{ 
    uipickerForContract *addViewController = [[uipickerForContract alloc] initWithNibName:@"uipickerForContract" bundle:nil]; 
    addViewController.delegate = self; 

    addViewController.modalPresentationStyle = UIModalPresentationFormSheet; 
    addViewController.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal; 

    [self presentModalViewController:addViewController animated:YES]; 

    addViewController.view.superview.frame = CGRectMake(50, 740, 695, 245); 


} 

此添加視圖 - 控制：一個按鈕的CLIK我用我的代碼，它工作正常添加模式視圖包含一個完成按鈕，我想，以用於導航到其他視圖 - 控制：所以我使用的代碼，但它不工作，它只是駁回addeview：

donebutton{ 

    nextview*s = [[nextview alloc]initWithNibName:@"nextview" bundle:nil]; 
    s.view.frame = CGRectMake(10, 20, 745, 755); 
    //nextview contains the object that I want to pass :object 
     s.object= self; 
     UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:self]; 
    [self dismissModalViewControllerAnimated:YES]; 
     [self.navigationController pushViewController:s animated:YES]; 
     NSLog(@"self.nav%@",self.navigationController); 
    } 

任何想法，請幫助我

Answer 1

你需要把解僱和明年推這樣的事情

之前之間有一些延遲：

nextview*s = [[nextview alloc]initWithNibName:@"nextview" bundle:nil]; 
s.view.frame = CGRectMake(10, 20, 745, 755); 
//nextview contains the object that I want to pass :object 
    s.object= self; 
    UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:self]; 
[self dismissModalViewControllerAnimated:YES]; 
    [self.navigationController pushViewController:s animated:YES]; 
    NSLog(@"self.nav%@",self.navigationController); 

後：視圖控制器

[self dismissModalViewControllerAnimated:YES]; 
[self performSelector:@selector(pushNextView) withObject:nil afterDelaye:0.40]; 

- (void) pushNextView { 
    nextview*s = [[nextview alloc]initWithNibName:@"nextview" bundle:nil]; 
    s.view.frame = CGRectMake(10, 20, 745, 755); 
    //nextview contains the object that I want to pass :object 
     s.object= self; 
     UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:self]; 

     [self.navigationController pushViewController:s animated:YES]; 
     NSLog(@"self.nav%@",self.navigationController); 
} 

Answer 2

self.navigationController（你模態地呈現）將爲零

並且您無法注意到這一點，因爲您正在分配導航控制器對象。