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This tutorial will demonstrate how to use the database adapter created in “Creating a SQLite Database in Android” to add and get data to and from the database to populate a ListView.
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There are several ways to send data across the internet to a server on the Android. I was recently working on a project and needed to send a JSON string to the server to add data to a database. Additionally in certain cases I wanted to receive data back from the server. The fastest and easiest way to do this was to use HTTP POST android library and capture the response from the server using a response handler. On the server side the response was simply generated by echoing a JSON string.
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This example will show you how to create a somewhat abstracted SQLite adapter on Android. This adapter can then be utilized by your program to do common database functions such as, querying and searching. I start by creating the class DBAdapter in my Android project and declaring the variable data necessary to create the database.

EDIT: The code has been modified since it originally assumed that a key option would be passed for every key. It will now work if no key options are passed. Additionally, “null” can also be passed to it if no key options are desired.

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After having been developing Android applications for 2 months I like to think that I have earned my Android badge. Last week at the SHPE conference I was given an android sticker at the Google booth, which now adorns my laptop.

Of course calling myself a developer makes me think of:

A week ago, for my mobile device programming class, I had to add text-to-speech and speech-to-text capabilities to a freely available Android program called Twitta. The features I added were very crudely superimposed on the Twitta interface, therefore this edit is by no means polished or intended for production usage.

There are 3 button “S”, “X”, and “R”. “S” starts the playback of all of the tweets which are currently displayed on the screen. Once the user scrolls down and new tweets appear on the screen the button can be pressed again and only the new ones will be read. “X” stops the playback of the messages. “R” prompts the user to speak their tweet. The google speech to text engine converts it to text and is displayed on the edit bar. If the message was wrong, pressing “R” again clears it and prompts for new speech. The message can also be edited with the keyboard. Below is a video of the application in action:

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