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Spacing items vertically (y axis)

/ Published in: ActionScript 3
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  1. // When you are in a for loop, create new items and and try to measure the height of an item.
  2. // And position items vertically.You need to remember the previous item, the fastest way to do this is to have a runningY var declared outside the for loop with an initial value of zero.
  3. //See comments in code for further explanation.
  4.  
  5. var runningY:Number = 0;
  6.  
  7. for (var index:int = 0; index < 4 ; index++) {
  8.  
  9. 	var _textheader:TextField = new TextField( );
  10. 	_textheader.text = "Text";
  11. 	_textheader.autoSize = TextFieldAutoSize.LEFT;
  12. 	_textheader.x = _background.x - _background.width / 2 + TOP_LEVEL_OFFSET_X;
  13. 	// First iteration  runningY = 0;
  14. 	// Second iteration runningY = 0 + textHeader.height +2; textHeader.height = 20
  15. 	// Third iteration  runningY = 22 + textHeader.height +2; textHeader.height = 40 -- mutiple lines of text
  16. 	// Fourth iteration runningY = 64 + textHeader.height +2; textHeader.height = 20
  17. 	// Fifth iteration  runningY = 86
  18. 	_textheader.y = runningY;
  19. 	runningY += _textheader.height + 2; // textheader = 20
  20. }

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