Manipulating Bitmaps

Quite often, however, we need to draw bitmaps in a rotated or otherwise altered state. It would be quite easy to use Photoshop, or whatever your favorite image editing software happens to be, and create more Bitmaps from the original Bitmap to face other directions.

Then, when we come to draw our bitmap, we can simply decide which way and draw the appropriate pre-loaded Bitmap.

However, I thought it would be much more interesting and instructive if we worked with just the one single source image and learned about the class that Android provides to manipulate images in our Java code. You will then be able to add rotating and inverting graphics to your app developer's toolkit.

What is a Bitmap exactly?

A Bitmap is called a Bitmap ...

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