NSAttributedString with Corner Radius and Word Wrap?

I've tried a lot to get NSAttributedString

with a background image and make an angular radius for it. Essentially I want to achieve the same result as BASECAMP. it shows the name of the task with the assigned person and the comments for that task. the assigned person or comments change the line if it doesn't match one line.

I am using UILabel

internally UITableViewCell

that resizes to fit the content. So I need to use the same UILabel

. And change the text inside the UIlabel to get the Basecamp task list.