The document discusses making HTTP requests in Android applications. It outlines 5 general steps: 1) Declare internet permission in the manifest, 2) Instantiate an Apache HTTP client object, 3) Instantiate an HTTPPost/HTTPGet object, 4) Set request parameters, and 5) Execute the request in a background thread using AsyncTask to avoid blocking the UI thread. It also notes that declaring the internet permission is needed because network requests can cost users money/bandwidth and users should know an app can send outside requests.

1. Android Development
Network Requests
by Lope Emano

2. Http Requests and Android

3. Http Request Overview
1. Declare permission in your AndroidManifest.xml
2. Instantiate your Apache Http Client object
3. Instantiate your HttpPost/HttpGet object
4. Set parameters
5. Execute in background thread

4. Http Request General Steps
1. Declare permission in your AndroidManifest.xml
● Internet requests can cost the user’s money.
● Internet requests can limit the user’s bandwidth.
● Users need to know that your app is able to send
requests outside the network.
● This permission will be prompted when the users
install the app from play store.

5. Http Request General Steps
2. Instantiate your Apache Http Client object
● Added in API 1
● Taken from Apache Software foundation
● Created because java.net package wasn’t good
enough
Android uses httpclient-v4.0-beta1, httpcore-4.0-beta2.
jar

6. Http Request General Steps
3. Instantiate your HttpPost/HttpGet object
new HttpGet()
new HttpPost()

7. Http Request General Steps
4. Set parameters
Http POST
Http GET

8. Http Request General Steps
5. Execute in background thread
AsyncTask
● enables proper and easy use of the UI thread
● designed to be a helper class around Thread and
Handler and does not constitute a generic threading
framework.
● 4 steps/methods:
a. onPreExecute()
b. doInBackground()
c. onProgressUpdate()
d. onPostExecute()

9. Full Code

11. References:
● http://www.edureka.co/blog/android-tutorials-for-
beginners-activity-component/
● http://www.tutorialspoint.
com/android/android_acitivities.htm
● http://developer.android.
com/reference/android/app/Activity.html