How to Draw a Point on a Geotiff in Android and Put it in the Postgresql Database?

Question

I need to:

1. Open a geotiff in my phone (android) {offline)
2. Draw a point
3. Get it's coordinates (X,Y)
4. Fill in the data attributes (name of the point, ...)
5. Put the data and the coordinates in my postgresql database

How can I do this or develop this ? (eclipse + android sdk + ?)

Thank you.