LIFE CLOCKAndroid Mobile Application

By Tony Pagaduan

www.MrElte.com

SQLite DB Implementation

Copy to Excel Spreadsheet

SSA Life Expectancy Table

Excel Spreadsheet

Creating SQLite DB

SQLite Database Browser Free Software Written in Java

Formatting SQLite DB

Primary Key of table must be called ‘_id’ Must create additional Android metadata table

Placing SQLite DB into Project

Place SQLite file into Assets Folder

Copying SQLite file to Android System

Every time App is opened Checks if a database exists on Android System

If not: The SQLite file is copied from Assets Folder to the Android System○ Using ByteSteam Operations○ SQLite file coping process happens only once

Requesting Data from SQLite DB

Defined Class DataBaseHelper Extended from SQLiteOpenHelper

Simple SQL Query “SELECT _id, male FROM life WHERE _id = 22”

Updated Life Clock Calculation

Everyone is familiar with using “78.4” years with their project, instead use getLifeExp function

getLifeExp( age , gender ) returns specific life expectancy

Add/Apply new life expectancy years to current date instead of birthdate

New Additions to Life Clock Animated Pie Chart

Utilizes Threads and Handlers Operations

Thread sends a message to Handler every 1/10 second

Handler ReDraws Pie ChartEvery ReDraw : DrawArc is increased by 20

degrees until 360 is reached

New Additions to Life Clock Menu Button

Need to define an XML layout○ Put xml file into “menu” folder

Override Functions in Activity○ onCreateOptionsMenu○ onOptionsItemSelected

On Selection it creates a Dialog

New Additions to Life Clock Alert Dialog

Dialog Builder is createdSet a MessageSet an OK ButtonShow dialog

New Additions to Life Clock Haptic Feedback

Phone Vibrates upon CalculationUtilizes Vibrate Operation

○ Need to set Vibrate Permissions in AndroidManifest.xml

○ Function vibrate(20 milliseconds);

New Additions to Life Clock Shake to Calculate

Shake phone to start calculations Utilizes Accelerometer

○ Set a Listener in SensorManager○ Gravity is always acting on phone○ Must calculate change in momentum

If momentum is greater than 5 units: start calculation

Life Clock Demo

Life Clock

The End

Thank You

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www.MrElte.com

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