I have been struggling since I am new to flutter. I am trying to generate a list with total of 10 items, I would like to have 5 of the items the border radius be blue while the other 5 will becolor yellow, only the color blue renders not the other one. Please help. Here's my code. code

CodePudding user response：

You don't change anywhere the variable unread (moreover it is marked as final). I don't understand all of your code, but I think you can replace this line color: unread ? Colors.blue : Colors.yellowAccent with color: d < 5 ? Colors.blue : Colors.yellowAccent. The first 5 items will have blue border, the next five will have yellow color.

PS: This statement doesn't make sense unread ? 5 : 5. If unread is true then the 'first' 5 will be returned, otherwise the 'second' 5 will be returned. In both cases you will have always 5. If you want to generate 10 items you can use List.generate(10, (d){....})

CodePudding user response：

Though it took me time to understand what you want, implementing it would require you to change the value of unread either on a trigger of somekind of a button or something by using setState(() {}) or any state manager you'll be using.

P.S Please paste code instead of images.