在awakeFromNib中添加子視圖

Question

爲什麼在awakeFromNib方法中添加子視圖會導致它進入無限循環？應該在哪裏添加子視圖？謝謝。

- (void)awakeFromNib 
{ 
    outlineViewController = [[OutlineViewController alloc] initWithNibName:nil bundle:nil]; 

    NSArray *subViews = [leftView subviews]; 
    if ([subViews count] > 0) 
    { 
     [[subViews objectAtIndex:0] removeFromSuperview]; 
    } 

    [leftView addSubview:outlineViewController.view]; 

}

Answer 1

也許是由於

 outlineViewController = [[OutlineViewController alloc] initWithNibName:nil bundle:nil]; 

這就要求initFromCoder它調用然後awakeFromNib。如果OutlineViewController是awakeFromNib的同一個對象，那麼你發佈它就是如此。