Documents or guides on android.graphics.Camera and android.graphics.Matrix?

Question

I know this may not seem like a constructive or off topic . But I ask this question after I searched over 40 or 50 times on Google to find good documents or manuals for Camera and Matrix .

I need to do 3D animation in Android on Canvas , Camera , Matrix and without Open GL .

Finally, I found a few examples, but they have a little description regarding the methods and the differences between them. ( Touch Controlled Cube on Samsung Galaxy S2 or Create your own 3D list ). Now, without any documents, everything looks like magic, and I can’t debug my project.

So, I asked my question here:
Do you know a good tutorial or document on using Canvas , Camera , Matrix for 3D animation?

Answer 1

finally, after a few days, the best resource I found is:

Understanding animation

But this is not a complete resource.

Answer 2

For the basics, you can try the new boston tutorials