how do I display an image I have downloaded via qr bar code scan

mb1793 · Jan 25, 2013

Hello, I am currently working on an application that downloads an image from the web via qr bar-code scan of a download link. When I run the program no error is given , bu the imageview remains blank . I've tried the flicker example using httputils2 and nothing seems to work. what am I doing wrong? why is the downloaded image not displaying ? I appreciate any help in advance.

thanks,

Erel · Jan 25, 2013

You have only uploaded the main activity code. You should use File - Export as zip.

mb1793 · Jan 28, 2013

Ok thanks I apologize for that I have uploaded the file again properly.Iappreciate your help

Erel · Jan 29, 2013

Not sure that I understand your code:

B4X:

Sub myABBarcode_BarcodeFound (barCode As String, formatName As String)
   Activity.LoadLayout ("imagedisplay")
   Label1.Text = barCode ' establishes text on label#1 as a barcode reading
   'mResult = barCode ' establishes mresult as barcode reading
End Sub

This code will not start any activity. It will just load the layout file named imagedisplay.bal.

mb1793 · Feb 3, 2013

so would i use an activity initialize statement ? i apologize i am a fairly new to this .the closest example that ive been able to find in to my problem is the httputils 2 flickr example. and i am unable to infer upon a solution from that code.

mb1793 · Feb 3, 2013

do i need to create a seperate download activity?

Erel · Feb 3, 2013

If you want to start a new activity then you should call StartActivity(<TargetActivity>).

You can download an image to the current activity. If I remember correctly the example included with HttpUtils2 downloads an image and sets it as the activity background.

mb1793 · Feb 6, 2013

when I attempt to use the start activity command I receive an error message saying that I am missing a parameter. and when I attempt to set the image message as my background it appears under the previous activities.Is there a way to set the image as my background if my program creates multiple activities stacked 1 upon the other?

madSac · Feb 6, 2013

mb1793 said:
....when I attempt to set the image message as my background it appears under the previous activities.Is there a way to set the image as my background if my program creates multiple activities stacked 1 upon the other?

You will have to handle download result in new activity or you will have to call function in new activity after downloading the image.

Erel · Feb 6, 2013

when I attempt to use the start activity command I receive an error message saying that I am missing a parameter

Can you post your code?

Is there a way to set the image as my background if my program creates multiple activities stacked 1 upon the other?

Yes.

how do I display an image I have downloaded via qr bar code scan

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