Catextlayer string sizes and colours

Question

I'm having trouble getting my head around how to define certain sections of a catextlayer in different sizes, colours and how to add line breaks?

I need to format a page of text like so:

Title (in size 20 HelveticaNeue-Light, black)

/n line break

Para 1 (in size 15 HelveticaNeue-Light, black)

/n line break

para 2 (in size 15 HelveticaNeue-Light, custom colour)

At the moment all I have is the title text, can anyone help me out?

    CATextLayer *TextLayer = [CATextLayer layer];
    TextLayer.bounds = CGRectMake(0.0f, 0.0f, 245.0f, 290.0f);
    TextLayer.string = @"Title";
    CTFontCreateWithName((CFStringRef)@"HelveticaNeue-Light", 0.0, NULL);
    TextLayer.backgroundColor = [UIColor blackColor].CGColor;
    TextLayer.position = CGPointMake(162.0, 250.0f);
    TextLayer.wrapped = YES;
    TextLayer.fontSize = 20;
    [self.view.layer addSublayer:TextLayer];

Answer 1

Sounds like you want to use attributed strings. If you have an Apple Developer account you can learn more in the docs.

Answer 2

Here is the code that should work:

NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];

paragraphStyle.lineBreakMode = NSLineBreakByWordWrapping;
paragraphStyle.alignment = NSTextAlignmentLeft;
NSAttributedString *string= [[NSAttributedString alloc] initWithString:@"#We enjoy rftef gdfg dfgdfg dfgdfg dfgdfg dgdfg dgdfg gdfg dfgdfg dgdfg"
                                  attributes:[NSDictionary
                                              dictionaryWithObjectsAndKeys:[UIFont systemFontOfSize:11],
                                              NSFontAttributeName,
                                              paragraphStyle, NSParagraphStyleAttributeName,nil]];



CATextLayer *subtitle1Text = [[CATextLayer alloc] init];
[subtitle1Text setFont:@"Helvetica-Bold"];
[subtitle1Text setFontSize:18];
[subtitle1Text setFrame:overlayLayer1.bounds];
[subtitle1Text setString:string];