To remove focus from a text field you should assign Stage.focus the null value

To remove focus from a text field you should assign Stage.focus the null value : Focus : TextField Flash / Flex / ActionScript examples

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To remove focus from a text field you should assign Stage.focus the null value


 

package {

  import flash.display.Sprite;
  import flash.text.TextField;
  import flash.text.TextFieldType;
  import flash.events.MouseEvent;

  public class Main extends Sprite {

    public function Main(  ) {
      var field:TextField = new TextField(  );
      field.border = true;
      field.background = true;
      field.type = TextFieldType.INPUT;
      addChild(field);
      var button:Sprite = new Sprite(  );
      button.graphics.lineStyle(  );
      button.graphics.beginFill(0xFFFFFF);
      button.graphics.drawRect(0, 0, 100, 50);
      button.graphics.endFill(  );
      button.addEventListener(MouseEvent.CLICK, onClick);
      button.y = 100;
      addChild(button);
    }
    
    private function onClick(event:MouseEvent):void {
      stage.focus = null;

    }
    
  }
}