Flood Action IET 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