title: Changing state of Button in flutter
body: <p>What i want to do in flutter is when i press button1 it enables button2 and then it disables himself and i want to do the same for button2.</p>
  
  <pre><code>bool button1 = true;
  bool button2 = false;
  
  void _button1(){
      setState(){
        button1=false;button2=true;
      }
    }
  void _button2(){
      setState(){
        button1=true;button2=false;
      }
    }
  
  new MaterialButton(onPressed: button1 ? _button1 :null,child: Text("button1"),color: Colors.greenAccent,),
  new MaterialButton(onPressed: button2 ? _button2 :null,child: Text("button2"),color: Colors.greenAccent,),
  </code></pre>
  
  <p>But it's not working for me, because when i press button1 nothing happens.</p>