title: I have to create one Toolbar for each activity in my Android app?
body: <p>I have this doubt about new Toolbar in Android.</p>
  
  <p>I have to create one Toolbar for each activity in my app or there are a best practice to create one Toolbar for all activities?</p>
  
  <p>I try create a Singleton inflating a layout and search a view ID to create a toolbar and return the same instance for all activities, but this don't work.</p>
  
  <p>Can anybody help me? :S</p>