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Flood Action IET Technical Bid A community organisation tool for android.

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Presentation on theme: "Flood Action IET Technical Bid A community organisation tool for android."— Presentation transcript:

1 Flood Action IET Technical Bid A community organisation tool for android

2 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

3 Integration SQLite Contacts Manager Live Feeds

4 Development Tools Fire Fox Sqlite Plugin Eclipse Indigo with Android Plugin Test Hardware link Camera Android AVD Emulate phone

5 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

6 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.

7 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

8 What Can The User do? View all images in Gallery view Allow for smooth animation Efficient use of running memory

9 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


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