How do I add an NSTextView to an NSScrollView? - objective-c

Question

This document. explains how to programmatically add an NSTextview (that can scroll) to a window. However, how do I programmatically add an NSTextView into an NSScrollView?
EDIT: Here's is the code that works with windows. I want to be able to programmatically insert an NSTextView into a NSScrollView I created with Interface Builder
-(IBAction)drawTextViews:(id)sender {
NSScrollView *scrollview = [[NSScrollView alloc]
initWithFrame:[[theWindow contentView] frame]];
NSSize contentSize = [scrollview contentSize];
NSTextView *theTextView = [[NSTextView alloc] initWithFrame:NSMakeRect(0, 0,
contentSize.width, contentSize.height)];
[theTextView setMinSize:NSMakeSize(0.0, contentSize.height)];
[theTextView setMaxSize:NSMakeSize(FLT_MAX, FLT_MAX)];
[theTextView setVerticallyResizable:YES];
[theTextView setHorizontallyResizable:NO];
[theTextView setAutoresizingMask:NSViewWidthSizable];
[[theTextView textContainer]
setContainerSize:NSMakeSize(contentSize.width, FLT_MAX)];
[[theTextView textContainer] setWidthTracksTextView:YES];
[scrollview setDocumentView:theTextView];
[theWindow setContentView:scrollview];
[theWindow makeKeyAndOrderFront:nil];
[theWindow makeFirstResponder:theTextView];*/
[[theTextView enclosingScrollView] setHasHorizontalScroller:YES];
[theTextView setHorizontallyResizable:YES];
[theTextView setAutoresizingMask:(NSViewWidthSizable | NSViewHeightSizable)];
[[theTextView textContainer] setContainerSize:NSMakeSize(FLT_MAX, FLT_MAX)];
[[theTextView textContainer] setWidthTracksTextView:NO];

Answer 1

As pointed out in the comments you can achieve an NSTextView within the scroll view by setting it as document view. If you want the textview only to take up a small part of the scroll view you have to construct that in another way. What is the goal you want to achieve?

Answer 2

I also had issues with programmatic creation of scrollable NSTextView. Based on my attempts I have created working example app: How to create scrollable NSTextView programmatically?.
Here is relevant code:
- (void)viewDidLoad {
[super viewDidLoad];
CGFloat margin = 20;
NSRect scrollViewRect = NSMakeRect(
margin,
margin,
self.view.bounds.size.width - margin * 2,
self.view.bounds.size.height - margin * 2
);
NSScrollView *scrollview = [[NSScrollView alloc] initWithFrame:scrollViewRect];
scrollview.backgroundColor = [[NSColor blueColor] colorWithAlphaComponent:0.2];
scrollview.drawsBackground = YES;
NSSize contentSize = [scrollview contentSize];
scrollview.borderType = NSGrooveBorder;
scrollview.hasVerticalScroller = YES;
scrollview.hasHorizontalScroller = NO;
scrollview.autoresizingMask = NSViewWidthSizable | NSViewHeightSizable;
NSTextView *theTextView = [[NSTextView alloc] initWithFrame:scrollview.bounds];
theTextView.drawsBackground = NO;
theTextView.minSize = NSMakeSize(0.0, contentSize.height);
theTextView.maxSize = NSMakeSize(CGFLOAT_MAX, CGFLOAT_MAX);
theTextView.verticallyResizable = YES;
theTextView.horizontallyResizable = NO;
theTextView.autoresizingMask = NSViewWidthSizable;
theTextView.textContainer.containerSize = NSMakeSize(contentSize.width, CGFLOAT_MAX);
theTextView.textContainer.widthTracksTextView = YES;
NSString *string = #"Once upon a time there was a little-known patent clerk in Bern who received a disappointing annual performance review in ’05";
[theTextView insertText:string replacementRange:NSMakeRange(0, 0)];
scrollview.documentView = theTextView;
[self.view addSubview:scrollview];
}