B4A Library GoogleUrlShortener

An Android/Java Library to create short URL's using Google's URL Shortener.
It wraps his project. https://github.com/PDDStudio/GoogleUrlShortener
GoogleURLShortener
Version: 0.09

• GoogleURLShortener
  Events:
  • finishedLoading (shortUrl As String)
  • startedLoading
  Methods:
  • Initialize (EventName As String)
  • ShortURL (longUrl As String)
  Permissions:
  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.INTERNET

 

[MarcoRome]

Exist also THIS

 

[jahswant]

Exist also THIS

Good.I didn't know this.

 

[imgsimonebiliato]

Where's "okio-1.6.0" library?

 

[jahswant]

Where's "okio-1.6.0" library?

https://www.google.com/url?sa=t&rct...sg=AFQjCNF4ElucP8iS7g9sqKxat7iJ6e1rpg&cad=rja

 

[imgsimonebiliato]

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0ahUKEwjDxYXk85fMAhXI2xoKHU_JBjYQFgg4MAM&url=https://search.maven.org/remote_content?g=com.squareup.okio&a=okio&v=LATEST&usg=AFQjCNF4ElucP8iS7g9sqKxat7iJ6e1rpg&cad=rja

Thanks, but i've got still this problem:

A referenced library is missing: okio-1.6.0

 

[jahswant]

A referenced library is missing: okio-1.6.0

Change the name to 1.6.0 it should work...

 

[so27]

Where can I find okhttp-3.0.0-rc1.jar ?

 

[imgsimonebiliato]

I founded the *.jar missing file with google.
I started the app, but I've got this error log:

LogCat connected to: 0123456789ABCDEFG

Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1), thread 30565 (config)

** Activity (main) Create, isFirst = true **

** Activity (main) Resume **
java.lang.RuntimeException: An error occured while executing doInBackground()


    at android.os.AsyncTask$3.done(AsyncTask.java:299)
    at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:352)
    at java.util.concurrent.FutureTask.setException(FutureTask.java:219)
    at java.util.concurrent.FutureTask.run(FutureTask.java:239)
    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)


    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
    at java.lang.Thread.run(Thread.java:838)
Caused by: java.lang.NoClassDefFoundError: com.google.gson.Gson
    at com.pddstudio.urlshortener.async.AsyncLoader.doInBackground(AsyncLoader.java:42)
    at com.pddstudio.urlshortener.async.AsyncLoader.doInBackground(AsyncLoader.java:23)
    at android.os.AsyncTask$2.call(AsyncTask.java:287)
    at java.util.concurrent.FutureTask.run(FutureTask.java:234)
    ... 4 more
** Activity (main) Pause, UserClosed = true **

 

[Erel]

You don't need a library for such simple web service:

Depends on the following libraries: OkHttpUtils2, OkHttp and JSON.

Sub Process_Globals
   Private apikey As String = "AIzaSyCmF..." 'API key from Google developer console
End Sub

Sub Globals

End Sub

Sub Activity_Create(FirstTime As Boolean)
   ShortenUrl("www.b4x.com")
End Sub

Sub ShortenUrl(url As String)
   Dim j As HttpJob
   j.Initialize("shortenurl", Me)
   Dim jg As JSONGenerator
   jg.Initialize(CreateMap("longUrl": url))
   j.PostBytes($"https://www.googleapis.com/urlshortener/v1/url?key=${apikey}"$, jg.ToString.GetBytes("UTF8"))
   j.GetRequest.SetContentType("application/json")
End Sub

Sub JobDone(job As HttpJob)
   If job.JobName = "shortenurl" Then
     If job.Success Then
       Dim jp As JSONParser
       jp.Initialize(job.GetString)
       Dim shortUrl As String = jp.NextObject.Get("id")
       Log($"Short url: ${shortUrl}"$)
     Else
       Log("Error: " & job.ErrorMessage)
     End If
   End If
   job.Release
End Sub

The API is described here: https://developers.google.com/url-shortener/v1/getting_started#

Note that you can create an Android credentials key that is not restricted to any specific package or signing key.

 

[imgsimonebiliato]

Hi Erel,
please, can you explain me this line?

j.PostBytes($"https://www.googleapis.com/urlshortener/v1/url?key=${apikey}"$, jg.ToString.GetBytes("UTF8"))

Maybe with a concrete example please

 

[Erel]

Are you asking about the strange dollar signs?

[B4X] Smart String Literal

It just inserts the value of apikey to the string.

 

[imgsimonebiliato]

What do I do with apis? Only create one "Android key" new?

 

[Erel]

You need to enable this API:

And then create an Android key.