Android Volley Library Tutorial

Volley is a networking library that manages network requests and their response caches without the developer having to write a lot of “boilerplate” code.  Volley implements tools that allow for simultaneous requests to run on a pool of threads that can be given priority over one another.  All of this is done, while implementing a transparent cache that allows for quick reloading of data.   It is, however, not for everything.  Responses are delivered whole in memory, so it is less than ideal for large downloads such as music and movies.  It is alternatively geared towards smaller requests such as JSON files, images, and other files of that size and nature.


Some features of volley :

  1. Request queuing and prioritization
  2. Effective request cache and memory management
  3. Extensibility and customization of the library to our needs
  4. Cancelling the requests

You can take a look at this presentation before continuing to tutorial to understand volley more.

[su_youtube url=”http://youtu.be/yhv8l9F44qo”]

Preview

 

[su_button url=”https://github.com/androidsrc/VolleyExample” target=”blank” style=”stroked” background=”#51d461" color=”#ffffff” size=”6" center=”yes” radius=”0" icon=”icon: arrow-circle-o-down”]Download Full Source Code[/su_b[/su_button]p> 

volley_preview

Lets get started

1. Adding volley.jar to your project

In Android Studio create a new project by navigating to File ⇒ New ⇒ Android Application Project and fill required details. Volley can be added to project as gradle dependency in app level build.gradle file.

GuRu

Technology enthusiast. Loves to tinker with things. Always trying to create something wonderful using technology. Loves coding for Android, Raspberry pi, Arduino , Opencv and much more.

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3 Responses

  1. Ralph Ngo says:

    Working good with your example URLs, but when I try Picasa’s json URL, I caught an error:

    org.json.JSONException: End of input at character 0 of

    The URL used is https://picasaweb.google.com/data/feed/api/user/kodingralph?kind=album&alt=json

  2. Gnanendra says:

    com.android.volley.NoConnectionError: java.net.SocketException: recvfrom failed: ECONNRESET (Connection reset by peer)

  1. February 9, 2016

    […] Android Volley Library Tutorial […]

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