Android Tutorial

Android Tutorial 269

Matrix mirrorAndTilt30 = new Matrix();
mirrorAndTilt30.preRotate(30);
mirrorAndTilt30.preScale(-1, 1);

You can see the results of different combinations of tilt and mirror

Matrix transforms in Figure. When you’re no longer using a Bitmap,

you can free its memory using the recycle() method:

pic.recycle();

A single-source bitmap: scaled, tilted, and mirrored using

Android Bitmap classes.

There are a variety of other Bitmap effects

and utilities available as part of the

Android SDK, but they are numerous and

beyond the scope of this book. See the

android.graphics package for more

details.

Working with Shapes

You can define and draw primitive shapes such as rectangles and

ovals using the ShapeDrawable class in conjunction with a variety

of specialized Shape classes. You can define Paintable drawables as