如何从可可中的NSSplitView中删除SubView？

Question

我正在用这个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前面如何在添加新子视图之前从splitRightView中删除子视图？

谢谢.

Answer 1

试试这个(假设您要删除第一个子视图):

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