Social Media

From NSB App Studio
Revision as of 19:00, 6 January 2014 by Ghenne (talk | contribs)
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Twitter

  • No code needs to be written: Twitter does all the work.
  • The display to be generated is set by a Twitter Widget ID
  • To create a Twitter widget, sign onto Twitter
  • In the above image, the top widget is a Follow widget
  • Beneath that, is a Timeline widget.
  • There are many, many options to explore on Twitter's site.

Facebook

Function btnRetrieve_onclick()
  $.getJSON("https://graph.facebook.com/" & txtId.value, "callback=?", gotResult)
End Function
  • $getJSON is a wrapper for an Ajax call
  • We put the name of the person we want in the URL
  • We supply the name of the function to call on return ("gotResult").
  • This is an asynchronous call: we can do other things while waiting for the result.
Function gotResult(data)
  txtData.value = ""
  If data["error"] Then
    txtData.value = data.error.message
  Else
    For Each item in data
      txtData.value = txtData.value & Eval("item") & ": " & item & vbCRLF
    Next
  End If
End Function
  • The data returned will be a JSON object, stored in data.
  • This code dumps the name and value of the fields in data.

PayPal


  • The PayPal control allows you to collect money from PayPal for sales, subscriptions and donations.
  • Much easier to set up and use than a credit card.
  • First, set yourself up as a PayPal Merchant.
  • Assuming you already have a PayPal account, go to the Merchant Services tab on the main screen.
  • On the left, click on a tab called “Website Payments Standard”.
  • Once you are set up as a merchant, you will need to set up your product.
  • Use the Merchant Services page: Choose the “Buy Now button” option.
  • Enter a number of fields, including item name, item ID (a reference number for your own use), price, currency (21 choices!), shipping and tax info.
  • Once complete, click on ‘Create Button’.
  • It will go to a new page, showing the code for the button.
  • You’re interested in the string just after “value=”.
  • Copy into hostedButtonID in the control’s properties.
  • When the user taps on "Buy Now", PayPal takes over using the information you set up in hostedButtonID.