iOS：自定義按鈕不在故事板上顯示

Question

我在故事板中以編程方式顯示圖像，併成功處理橫向/縱向（請參閱下面的代碼）。我正在嘗試通過Interface Builder直接在故事板中的相同視圖上添加自定義按鈕。該按鈕只是在應用程序運行時不顯示。只有圖像。你能告訴我在故事板視圖上做到這一點的方式嗎？或者我應該以編程方式添加它？或者在界面構建器中重做所有100％的東西？真的不知道如何混合和匹配這2種方法...

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    // Do any additional setup after loading the view. 
    [[self navigationController] setNavigationBarHidden:YES animated:YES]; 



    UIImage *startImage = [UIImage imageNamed:@"title.png"]; 
    UIImageView *startImageView = [[UIImageView alloc] initWithImage:startImage]; 

    self.startImageView = startImageView; 

    [self.view addSubview:startImageView]; 


} 

- (void) orientStartImageView 
{ 
    UIInterfaceOrientation curOrientation = [UIApplication sharedApplication].statusBarOrientation; 
    if (curOrientation == UIInterfaceOrientationPortrait || curOrientation == UIInterfaceOrientationPortraitUpsideDown) { 
    [self.startImageView setFrame:CGRectMake(-128, 0, 1024, 1024)]; 
}else{ 
    [self.startImageView setFrame:CGRectMake(0, -128, 1024, 1024)]; 
} 
} 

- (void) viewWillAppear:(BOOL)animated 
{ 
    [super viewWillAppear:animated]; 
    [self orientStartImageView]; 
} 

- (void)viewWillLayoutSubviews 
{ 
    [super viewWillLayoutSubviews]; 
    [self orientStartImageView]; 
} 

Answer 1

其bcoz你在按鈕的頂部添加ImageView的，您可以在使用此代碼帶到前面，把它放在viewdidload方法：

[self.view bringSubviewToFront:yourBtn];