Android Assignment

Twitter-like Client App

Please conduct the following tasks alone. For implementation details you can refer to the lecture slides or the Android developer website. Please do not hesitate to ask me or the tutor if you have any questions. Under “Tip” you can find some hints for the task. The “Checklist” specifies what should happen when your implementation is correct.

Tasks

1. Write your own Twitter client app
2. Extend your client with the feature: “send message”
3. Implement the pull-to-reload feature

1. Write your own Twitter client app

Implement an app with a list of tweets that are loaded asynchronously from Twitter like service. You can develop your own service or use: http://gerlicher.mi.hdm-stuttgart.de/mad/index.php. An example PHP script to write your own service can be found here.

Tip

Either use an IntentService or an AsyncTask to load the messages in the background. Use the org.json library and the class JSONArray to parse JSON data.

Checklist
The message are loaded and shown in the list

2. Extend your client with the feature: “send message”

Add a second activity that allows to send a message to the „twitter service“. To add a message, a floating button should be shown on the first screen. When it is clicked the second activity is startet. The messages should be send asynchronously to the service.

Tip

Add a floating button in the layout using the class: android.support.design.widget.FloatingActionButton. You might need to add the design android support library.

Checklist
When the button is clicked the second activity is started
When sending a new message, it shows up in the list

3. Implement the pull-to-reload feature

Implement the feature that allows to pull down the list of messages and this triggers a reload of the list.

Tip

For pull to reload use the layout: android.support.v4.widget.SwipeRefreshLayout

Checklist
When the list is pulled, the new message are reloaded from the server