快速如何使ui标签总是4行

Question

This is my code

aboutMessageLabel.lineBreakMode = .ByWordWrapping
//                .ByWordWrapping // or NSLineBreakMode.ByWordWrapping
            aboutMessageLabel.numberOfLines = 4
            aboutMessageLabel.text = "bla bla"

where aboutmessageLabel is an instance of UILabel.

If my content is more than 4 lines, it shows just the first 4 lines and that is what I want.

However, if the content is less than 4 lines, it the height doesn't keep as the hieght for 4 lines, it becomes the hieght of the content.

is there anyway where i can always make the label 4 lines even if the content is less than 4 lines?

Answer 1

Set the size of the label in the MainStoryboard (like in the 2nd image), then click on your label, then in the Attributes Inspector set the number or Lines to 4 like this:

Your label will have 4 lines, no matter who much text there is (which can be a bad thing as well if you have too much text like in the example):

Furthermore, did you should add constraints to the label. This will keep it the same size always. I'm assuming you want to create something like a meta description of a product, song, whatever. So if you keep the same size and have the 4 lines set, you'll be fine. It'll adjust based on the number of words while keeping the size. Edit the color of the label background to see the if it works/stays the same size when testing.