Capturing user signature

[ewansmac]

I am developing an app that will be deployed on both ios and android and I require to capture a users signature. Is this possible and can anyone help.

Thanks

[Dixie]

Hi..

Yes it is possible.. I have attached a stack that will show you the basics... just write your name or signature on the card, or screen if on your device...once you have the 'signature' export the snapshot of the graphic to a file and then you could do with it what you will..

hope it helps

Dixie

[Mark]

Hi,

I can't open Dixie's stack, because I'm LC 5.0.2 and he might be using a newer version of LC. Therefore, I'll post my solution anyway.

My first attempt used mouseDown and a repeat loop until the mouse is up, but that doesn't work on tablets (with LC 5.0.2). Therefore I am using the mouseStillDown message.

Code: Select all

local lPoints

on mouseStillDown
     put the mouseLoc into myLoc
     if myLoc is within the rect of btn "Canvas" then
          put myLoc & cr after lPoints
          set the points of grc 1 to lPoints
     end if
end mouseStillDown

on mouseUp
     put cr after lPoints
end mouseUp

You need a graphic object of type polygon and one transparent button "Canvas" on top of it. Set the script of the button (or card) to the script posted here. The scripts is very slow, but it kind of works. I look forward to seeing better solutions.

Kind regards,

Mark

[Dixie]

'Draw' stack saved in legacy format...
This is the very basics of the 'skribble' app
Dixie

[Mark]

Thanks, Dixie. The mouseMove handler is indeed much faster than mouseStilldown.

I have created a simple stack, which can be built into other stacks. Download it here. It also contains a number of resizing routines for different devices. Use the following syntax from the message box:

Code: Select all

set the screenSize of this stack to "iPhone"
set the screenSize of this stack to "Android7"
set the screenSize of this stack to "iPad Retina"

Devices currently supported are: iPhone, iPad, Android7 (7"), iPod, iPhone Retina, iPad Retina.

Kind regards,

Mark