Flood ActionIET Technical Bid

A community organisation tool for android

Our Innovation

Digital Platform for planning a response to environmental flooding

Integration with smartphone hardware was critical.

Camera Feature

Encountered problems with holding images in the application

Integration

SQLite

Contacts Manager

Live Feeds

Development Tools

Fire Fox Sqlite Plugin

Eclipse Indigo with Android Plugin

Test Hardware link Camera Android AVD

Emulate phone

The Limitations

• Screen Size 480 x 800 px of phone( ZTE Blade)

• Camera take Jpeg pictures at 2048 x 1536px • Android Virtual Machine App limited to 16 MB

The Problems

• Remember application runs at 16MB!• Image Jpeg on SD 2048 x 1536px = 1.0MB

• Display Bitmap BMP 2048 x 1536px = 9.4MB

• Showing more 2 images BMP 9.4MB x 2 = 18.8MB exceeding the 16 MB Heap.

Engineered Solution • Bitmap resize objective to not exceed the 16MB Heap size!

Start

Decode Image

Width>512px

Reduce 1/4

Return new resize bitmap

Decode jpeg to temp space as Bitmap

Check save on computation of small images

Then divide by 4 as 2048 / 4 = 512 px

2048 / 4 = 512 px width & 1536 /4 = 384 px new size is 512 x 384 px bitmap = 62.4kb

What Can The User do?

• View all images in Gallery view

• Allow for smooth animation

• Efficient use of running memory

Summary• Unique development in community organisation and flood

planning

• Integrated with available services to give up-to-date information

• Overcome a technical problem using knowledge of image compression