Re: QR Code Reader for android, ios?

[Tom Glod via use-livecode]

Thanks Klaus, I suppose the name threw me off.
"Nah I don't need to read barcodes" ...lol
Thank you.

Mike, thank you for confirming that it works fine on iOS
Very thoughtful of you to include some code.
I will rewrite it for my customer, but this saved me lots of time thank you.

Mark this one [solved]. YES. MergeAV and Android barcode scanner., code
sample included.




On Sat, Feb 19, 2022 at 11:52 AM Mike Kerner via use-livecode <
use-livecode@lists.runrev.com> wrote:

> for ios use mergav. it works great
> on ios when prompted, the user has to permit both the camera and the
> microphone.
>
>
> here's some code to help get you going
> check for typos, i had to modify mine to make it more generic
>
> on scanCredentials
>global barcodeTarget
>if not(barcodePermissionsGranted()) then exit scanCredentials
>put the long name of me into barcodeTarget
>barcodeScannerStart "org.iso.QRCode" #when we get something back,
> scanReturned will be called
>unlock screen
> end scanCredentials
>
>
>
> function barcodePermissionsGranted
>global videoAccessGranted, audioAccessGranted
>put empty into videoAccessGranted
>put empty into audioAccessGranted
>#get permission for the camera and microphone
>if the environment is not "mobile" then return false
>mergavrequestmediaaccess "video"
>mergavrequestmediaaccess "audio"
>repeat until videoAccessGranted is not empty and audioAccessGranted is
> not empty # sit until we get the answers we seek
>   wait 10 milliseconds with messages
>end repeat #until videoAccessGranted is not empty and audioAccessGranted
> is not empty
>return videoaccessGranted and audioaccessgranted
> end barcodePermissionsGranted
>
>
>
> on barcodeScannerStart symbology
>if the environment is not "mobile" then exit barcodeScannerStart
>mobileBusyIndicatorStart "square","Starting Scanner",70
>wait 10 milliseconds with messages
>put mergAVCamBarcodeTypes() into supportedSymbologies
>if symbology is empty or symbology is "All" then
>   put supportedSymbologies into symbology #allow everything.
>else if symbology is not in supportedSymbologies then #if it's empty
> then assume "All"
>   beep
>   answer "The app wants to use a barcode symbology that isn't supported
> "&"."
>   exit barcodeScannerStart
>end if #symbology is not in supportedSymbologies
>barcodeScanner symbology
> end barcodeScannerStart
>
>
>
> on mergAVMediaAccess pType, pGranted
>global videoAccessGranted, audioAccessGranted
>if not pGranted then
>   if pType is "audio" then
>  put "microphone" into device
>  put "Microphone" into panel
>   else #video
>  put "camera" into device
>  put "Camera" into panel
>   end if #pType is "audio"
>   mobilebusyindicatorstop
>   put false into videoAccessGranted # nuke both because proceeding is
> out.
>   put false into audioAccessGranted # nuke both because proceeding is
> out.
>   answer "Please grant access to the"&&&"in the Settings app,
> under Privacy ->"&
>   exit to top
>else #granted - only set the one that was granted, don't do any funky
> resets, or anything.
>   if pType is "audio" then
>  put true into audioAccessGranted
>   else #video
>  put true into videoAccessGranted
>   end if #pType is "audio"
>   # added and removed...if audioAccessGranted and videoAccessGranted
> then barcodeScanner symbology
>end if #not pGranted
> end mergAVMediaAccess
>
>
>
> on barcodeScanner symbology
>global barcodeScannerIsLive
>mobileBusyIndicatorStart "square","Starting Scanner",70
>mergavcamcreate
>put the result into theResult
>if theResult is not empty then
>   mobileBusyIndicatorStop
>   answer "Scanner not created:"&
>   exit barcodeScanner
>end if #the result is not empty
>try
>   mergAVCamSet "rect",the rect of grc "cam"
>catch e
>   mobileBusyIndicatorStop
>   answer e
>   exit barcodeScanner
>end try
>try
>   mergAVCamSet "visible","true"
>catch e
>   mobileBusyIndicatorStop
>   answer e
>   exit barcodeScanner
>end try
>try
>   mergAVCamSet "quality","high"
>catch e
>   mobileBusyIndicatorStop
>   answer e
>   exit barcodeScanner
>end try
>mobileBusyIndicatorStop
>
>put mergavcamget("max zoom") into theZoom
>try
>   mergavcamset "zoom",theZoom
>catch e
>   mobileBusyIndicatorStop
>   answer e
>   exit barcodeScanner
>end try
>mergAVCamStartBarcodeReader symbology
>put true into barcodeScannerIsLive
> end barcodeScanner
>
>
>
> on mergAVCamBarcodeFound pBarcode, pType
>global barcodeTarget
>dispatch "scanReturned" to barcodeTarget with pBarcode
> end mergAVCamBarcodeFound
>
>
>
> on stopBarcodeScanner
>global barcodeScannerIsLive
>if not barcodeScannerIsLive then exit stopBarcodeScanner # or will 

Re: QR Code Reader for android, ios?

[Mike Kerner via use-livecode]

for ios use mergav. it works great
on ios when prompted, the user has to permit both the camera and the
microphone.


here's some code to help get you going
check for typos, i had to modify mine to make it more generic

on scanCredentials
   global barcodeTarget
   if not(barcodePermissionsGranted()) then exit scanCredentials
   put the long name of me into barcodeTarget
   barcodeScannerStart "org.iso.QRCode" #when we get something back,
scanReturned will be called
   unlock screen
end scanCredentials



function barcodePermissionsGranted
   global videoAccessGranted, audioAccessGranted
   put empty into videoAccessGranted
   put empty into audioAccessGranted
   #get permission for the camera and microphone
   if the environment is not "mobile" then return false
   mergavrequestmediaaccess "video"
   mergavrequestmediaaccess "audio"
   repeat until videoAccessGranted is not empty and audioAccessGranted is
not empty # sit until we get the answers we seek
  wait 10 milliseconds with messages
   end repeat #until videoAccessGranted is not empty and audioAccessGranted
is not empty
   return videoaccessGranted and audioaccessgranted
end barcodePermissionsGranted



on barcodeScannerStart symbology
   if the environment is not "mobile" then exit barcodeScannerStart
   mobileBusyIndicatorStart "square","Starting Scanner",70
   wait 10 milliseconds with messages
   put mergAVCamBarcodeTypes() into supportedSymbologies
   if symbology is empty or symbology is "All" then
  put supportedSymbologies into symbology #allow everything.
   else if symbology is not in supportedSymbologies then #if it's empty
then assume "All"
  beep
  answer "The app wants to use a barcode symbology that isn't supported
"&"."
  exit barcodeScannerStart
   end if #symbology is not in supportedSymbologies
   barcodeScanner symbology
end barcodeScannerStart



on mergAVMediaAccess pType, pGranted
   global videoAccessGranted, audioAccessGranted
   if not pGranted then
  if pType is "audio" then
 put "microphone" into device
 put "Microphone" into panel
  else #video
 put "camera" into device
 put "Camera" into panel
  end if #pType is "audio"
  mobilebusyindicatorstop
  put false into videoAccessGranted # nuke both because proceeding is
out.
  put false into audioAccessGranted # nuke both because proceeding is
out.
  answer "Please grant access to the"&&&"in the Settings app,
under Privacy ->"&
  exit to top
   else #granted - only set the one that was granted, don't do any funky
resets, or anything.
  if pType is "audio" then
 put true into audioAccessGranted
  else #video
 put true into videoAccessGranted
  end if #pType is "audio"
  # added and removed...if audioAccessGranted and videoAccessGranted
then barcodeScanner symbology
   end if #not pGranted
end mergAVMediaAccess



on barcodeScanner symbology
   global barcodeScannerIsLive
   mobileBusyIndicatorStart "square","Starting Scanner",70
   mergavcamcreate
   put the result into theResult
   if theResult is not empty then
  mobileBusyIndicatorStop
  answer "Scanner not created:"&
  exit barcodeScanner
   end if #the result is not empty
   try
  mergAVCamSet "rect",the rect of grc "cam"
   catch e
  mobileBusyIndicatorStop
  answer e
  exit barcodeScanner
   end try
   try
  mergAVCamSet "visible","true"
   catch e
  mobileBusyIndicatorStop
  answer e
  exit barcodeScanner
   end try
   try
  mergAVCamSet "quality","high"
   catch e
  mobileBusyIndicatorStop
  answer e
  exit barcodeScanner
   end try
   mobileBusyIndicatorStop

   put mergavcamget("max zoom") into theZoom
   try
  mergavcamset "zoom",theZoom
   catch e
  mobileBusyIndicatorStop
  answer e
  exit barcodeScanner
   end try
   mergAVCamStartBarcodeReader symbology
   put true into barcodeScannerIsLive
end barcodeScanner



on mergAVCamBarcodeFound pBarcode, pType
   global barcodeTarget
   dispatch "scanReturned" to barcodeTarget with pBarcode
end mergAVCamBarcodeFound



on stopBarcodeScanner
   global barcodeScannerIsLive
   if not barcodeScannerIsLive then exit stopBarcodeScanner # or will throw
an error
   mergAVCamStopBarcodeReader
   mergAVCamDelete
   put false into barcodeScannerIsLive
end stopBarcodeScanner

On Sat, Feb 19, 2022 at 11:05 AM Klaus major-k via use-livecode <
use-livecode@lists.runrev.com> wrote:

> Hi Tom,
>
> > Am 19.02.2022 um 17:00 schrieb Tom Glod via use-livecode <
> use-livecode@lists.runrev.com>:
> >
> > Hi Folks,
> >
> > I've done some searches and its still not clear to me, a lot of old posts
> > and no clear answer that I found that I can be sure applies in 2022.
> >
> > Do we have a working QR code reader library. widget, external?
> > For android? ios?
> > I don't mind paying for it.
> >
> > I know for desktop I can probably use the browser widget with the camera,
> > and some JS library.
> > But 

Re: QR Code Reader for android, ios?

[Klaus major-k via use-livecode]

Hi Tom,

> Am 19.02.2022 um 17:00 schrieb Tom Glod via use-livecode 
> :
> 
> Hi Folks,
> 
> I've done some searches and its still not clear to me, a lot of old posts
> and no clear answer that I found that I can be sure applies in 2022.
> 
> Do we have a working QR code reader library. widget, external?
> For android? ios?
> I don't mind paying for it.
> 
> I know for desktop I can probably use the browser widget with the camera,
> and some JS library.
> But has anyone successfully integrated a reader into a mobile app?

yes, check "Android Barcode Library" in the dictionary.
Works fine on Android, no idea about iOS, sorry.
But maybe some of the MERGEXT... externals will do the job.

> Thanks,
> 
> Tom

Best

Klaus

--
Klaus Major
https://www.major-k.de
https://www.major-k.de/bass
kl...@major-k.de


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QR Code Reader for android, ios?

[Tom Glod via use-livecode]

Hi Folks,

I've done some searches and its still not clear to me, a lot of old posts
and no clear answer that I found that I can be sure applies in 2022.

Do we have a working QR code reader library. widget, external?
For android? ios?
I don't mind paying for it.

I know for desktop I can probably use the browser widget with the camera,
and some JS library.
But has anyone successfully integrated a reader into a mobile app?

Thanks,

Tom



-- 
Tom Glod

Founder & Developer @ MakeShyft R.D.A 
Build Software with AppStarterStack  for
Livecode
Save Time with The Time Saver's Toolbox 
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