generate a qr code from app inventor.

[Paul White]

I am wanting to generate a qr code from appinventor, without it using
a web based generator.
I was thinking of using an activity starter. But from there I'm lost.
(what app will encode and how can I pass the text to it?) if anybody
can point me in the right direction, I would be most grateful.

[Sean Owen]

You don't need any code at all. Just pick out the Google Chart server URL that the generator creates for you and modify that URL, call it in your app to get a QR code image.

[Paul White]

My fault should have explained a bit better.
I want to generate the bar code from some text. not the link to the
app.

[Sean Owen]

Sure you can encode whatever text you want. Look at the chart server URL that I referred you to.

[Paul White]

I don't know what the chart server URL is and I want to be able to
generate the QRCode offline.
I'm Looking to start ZXing with the activity starter and use it's own
encoder.
My progress so far is

Action
com.google.zxing.client.android.ENCODE
ActivityClass
com.google.zxing.client.android.encode.EncodeActivity
ActivityPackage
com.google.zxing.client.android
DataType

DataUri
Hello.
ExtraKey

ExtraValue

I received a new error " Could not encode a barcode from the data
provided. "
Well at least It tried to encode it.

so just putting the text in the data uri box didn't work

So I have to find where to put it and I think I have to give the data
type.

[Sean Owen]

If you go to zxing.appspot.com/generator you will see what I mean.

OK, you've now specified you're interested in Intent-based integration. This is all correct except that I don't see that you're specifying the data to encode. It should be under key "ENCODE_DATA".

[Paul White]

Hi Sean
Thanks for taking the time to help.
I don't know how well you know App Inventor. But the activity starter
has 8 boxes.

Action ,ActivityClass, ActivityPackage, DataType, DataUri, ExtraKey,
ExtraValue, ResultName.

In My example I had entered "Hello" for the DataURI

Do I enter the key "ENCODE_DATA" in the ExtraKey box and if so where
do I put the text "hello"
or
Should Action be
Action
com.google.zxing.client.android.ENCODE_DATA and again where do I but
the text.

[Sean Owen]

I don't know app inventor. I'm talking about the Intent extras you need to set -- however you do that. I think these are several "ExtraKey" "ExtraValue" pairs, not URIs.