jadomican.a4thyearproject

Class LoadJSONTask

java.lang.Object

android.os.AsyncTask<java.lang.String,java.lang.Void,MedicineResponse>

jadomican.a4thyearproject.LoadJSONTask

public class LoadJSONTask
extends android.os.AsyncTask<java.lang.String,java.lang.Void,MedicineResponse>

The AsyncTask used to retrieve the Medicines from the JSON dataset. This is done as an AsyncTask as network operations should not be performed in the main UI thread in most situations as it can affect performance/ response time while the UI thread waits for the JSON response.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	LoadJSONTask.Listener

Nested classes/interfaces inherited from class android.os.AsyncTask

android.os.AsyncTask.Status

Field Summary

Fields inherited from class android.os.AsyncTask

SERIAL_EXECUTOR, THREAD_POOL_EXECUTOR

Constructor Summary

Constructors

Constructor and Description
LoadJSONTask(LoadJSONTask.Listener listener, MedicineListActivity activity)

Method Summary

Modifier and Type	Method and Description
protected MedicineResponse	doInBackground(java.lang.String... strings) Convert the response to the format required for the calling classes
protected void	onPostExecute(MedicineResponse response) Dismiss the dialog and load up the list, or inform the user if there is an error
protected void	onPreExecute() Show a progress dialog while the page loads

Methods inherited from class android.os.AsyncTask

cancel, execute, execute, executeOnExecutor, get, get, getStatus, isCancelled, onCancelled, onCancelled, onProgressUpdate, publishProgress

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LoadJSONTask

public LoadJSONTask(LoadJSONTask.Listener listener,
                    MedicineListActivity activity)

Method Detail

onPreExecute

protected void onPreExecute()

Show a progress dialog while the page loads

Overrides:

onPreExecute in class android.os.AsyncTask<java.lang.String,java.lang.Void,MedicineResponse>

doInBackground

protected MedicineResponse doInBackground(java.lang.String... strings)

Convert the response to the format required for the calling classes

Specified by:

doInBackground in class android.os.AsyncTask<java.lang.String,java.lang.Void,MedicineResponse>

See Also:

MedicineResponse

onPostExecute

protected void onPostExecute(MedicineResponse response)

Dismiss the dialog and load up the list, or inform the user if there is an error

Overrides:

onPostExecute in class android.os.AsyncTask<java.lang.String,java.lang.Void,MedicineResponse>