Android Question Last View Moved with DraggableView

stu14t · Sep 14, 2013

Hi,

I'm using Erel's DraggableView Class for a drawing program I writing and it is working a treat.

However, I'd like to give the user a little more accurate control over where the views (buttons with images) are finally placed. I've created an up, down, left and right joystick control to allow the user to move them pixel by pixel

(Many thanks to Jaames for inspiration and assistance)

How do I pass the last view dragged from the class back to the main activity to allow me to move it?

I'm sorry if this seems simple but I'm a self taught programmer and sometimes even the most simple things evade me.

stu14t · Sep 14, 2013

Worked it out by myself

Added Callsub2 to the class --

B4X:

Private Sub Panel1_Touch (o As Object, ACTION As Int, x As Float, y As Float, motion As Object) As Boolean

  If ACTION = ACTION_DOWN Then
      downx = x
      downy = y
  Else
      innerView.Left = innerView.Left + x - downx
      innerView.Top = innerView.Top + y - downy    
      panel1.Left = innerView.Left
      panel1.Top = innerView.Top
  End If
  CallSub2(Main, "LastPressed",innerView) 'added Callsub2 here
  Return True
End Sub

Then added the sub to the main activity to pass the view:

B4X:

Sub LastPressed (Innerview As View)
LastView = Innerview
End Su

Is this the best way to do this?

Erel · Sep 15, 2013

It is better to only call this sub when Action = ACTION_DOWN. The Touch event can be raised many times and it is better to keep it efficient as possible.

stu14t · Sep 15, 2013

Thanks Erel, I've now moved it

Android Question Last View Moved with DraggableView

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Android Question Last View Moved with DraggableView

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