如何从可可中的NSSplitView中删除SubView？

Question

我正在使用此IBActions加载两个不同的视图

- (IBAction)showFirstView:(id)sender{
    theDetailViewController = [DetailViewController new];
    [theDetailViewController initWithNibName:@"DetailView" bundle:nil];
    NSView *splitRightView = [[theSplitView subviews] objectAtIndex:1];
    NSView *aDetailView = [theDetailViewController view];
    [aDetailView setFrame:[splitRightView bounds]];
    [aDetailView setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];
    [splitRightView addSubview:aDetailView];
    NSLog(@"%@",(NSString *)splitRightView);
}
- (IBAction)showSecondView:(id)sender{
    theNewViewController = [NewViewController new];
    [theNewViewController initWithNibName:@"NewView" bundle:nil];
    NSView *splitRightView = [[theSplitView subviews] objectAtIndex:1];
    NSView *aDetailView = [theNewViewController view];
    [aDetailView setFrame:[splitRightView bounds]];
    [aDetailView setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];
    [splitRightView addSubview:aDetailView];
    NSLog(@"%@",(NSString *)splitRightView);
}

但是使用这段代码我只是将堆栈中的子视图放在彼此的前面 如何在添加新子视图之前从 splitRightView 中删除子视图？

感谢。

Answer 1

试试这个（假设您要删除第一个子视图）：

[[[splitRightView subviews] objectAtIndex:0] removeFromSuperview];