Question

I have my main window’s content view set like this:

 newContentView = [[CutoutView alloc]initWithFrame:window.frame];
     [window setContentView:newContentView];
     [newContentView release];

Where CutoutView is the name of my subclass. Now I want to add a subview to it so I did the following,

filterView = [[FilterView alloc]initWithFrame:NSMakeRect(100, 100, 500, 500)]; 
    [newContentView addSubview:filterView];
    [filterView release];

that all works fine except now I want to call methods from my filterView subclass and I want to get it like this but it wont work.

FilterView *filter = [[NSApp delegate] contentView]; 

I read in the docs that by using contentView it only “returns the highest accessible NSView object in the window hierarchy” So I tried adding the following to the addSubview

[newContentView addSubview:filterView positioned:NSWindowAbove relativeTo:nil];

but that didnt work either any ideas as to what I need to do? Thanks!

Answer 1

The content view is really your CutoutView class so you should be using:

FilterView *filterView = [[[[[NSApp delegate] window] contentView] subviews] objectAtIndex:0];

But two cleaner ways are:

1) Use IBOutlets to keep track of your views and assign them via IB.
2) Use tags:

filterView.tag = 101;

then use:

FilterView* filterView = [[[NSApp delegate] contentView] viewWithTag:101];