Creating a label using NSTextField is blurry

Question

I\'m trying to create a label programmatically using NSTextField, but it comes out blurry: screenshot

This is my code so far:

NSTextfield *textfield          


        

Answer 1

Make sure you're setting the frame of your NSTextField to something with all integer values.

Use roundf() if necessary.

I was getting a blurry NSTextField, and neither adding a solid background nor removing Core Animation layers from my view hierarchy were options for me. I noticed I was setting the frame of this text field to something with a Y value of 4.5, so the following changes fixed the issue for me:

Blurry label:

_label.frame = NSOffsetRect(_labelFrame,
                            -0.5 * (someRect.size.width + someConstant),
                            0.0);

No blur:

_label.frame = NSOffsetRect(_labelFrame,
                            roundf(-0.5 * (someRect.size.width + someConstant)),
                            0.0);

(In the above examples, _labelFrame and someRect are NSRects, and someConstant is a CGFloat. As you can see, the calculation I was doing in the second line of the first example was passing a non-integer value to NSOffsetRect).

Answer 2

I had the same problem, but I have solved it by:

textfield.canDrawSubviewsIntoLayer = true

Answer 3

If you created it via an XIB and it is blurry, I found the fix:

[textField setStringValue:@""];

If I comment this out it goes blurry; if put back it's crystal clear.

Answer 4

Simply, add

CanDrawConcurrently = true 

property from InterfaceBuilder

Answer 5

Out of the box, but worth to mention. I have wasted by entire day debugging the issue. I am using a non-apple external monitor and this is where the issue is identified. Once i open the app in Mac book pro, it is perfectly fine. So, the Samsung monitor which i am using might be non-retina.

Answer 6

Since this was my first time subclassing NSView, I had put the above code in the drawRect method instead of the initWithFrame method. I did this because I was following one of the sample applications from Apple's Dev site.

This was also causing my CPU usage to spike when I was scrolling