Reacting to volume key presses

Comments

• dave1707 Mod

  September 2019 Posts: 8,445

  @Bene Why not just tap the screen to go to the next slide or back to the previous slide.
• dave1707 Mod

  September 2019 Posts: 8,445

  @Bene Codea doesn't have access to the volume buttons. Here's a simple program that will let you move from slide to slide just by swiping your thumb or finger on the screen in the direction you want to go. Right now I just us text with the numbers 1 to 15. You would replace the numbers in the table with the pictures you want to show.

  displayMode(FULLSCREEN)
  
  function setup()
      fontSize(50)
      tab={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15}
      fill(255)
      pos=1
  end
  
  function draw()
      background(40, 40, 50)
      if pos<1 then
          pos=#tab
      elseif pos>#tab then
          pos=1
      end
      text("Slide "..tab[pos],WIDTH/2,HEIGHT/2)
  end
  
  function touched(t)
      if t.state==BEGAN then
          h=t.x
      elseif t.state==ENDED then
          if t.x<h then
              pos=pos+1
          end
          if t.x>h then
              pos=pos-1
          end
      end
  end
  
  
  
• Bene

  September 2019 Posts: 2

  The volume keys are less noticeable when pressed, when I hold the iPad facing the audience. As said i am not really writing a slideshow app