public AlphaBitmap (Context context)
: base (context)
{
mBitmap = GetResourceBitmap (R.drawable.app_sample_code);
mBitmap2 = mBitmap.extractAlpha ();
mBitmap3 = Bitmap.createBitmap (200, 200, Bitmap.Config.ALPHA_8);
drawIntoBitmap (mBitmap3);
mShader = new LinearGradient (0, 0, 100, 70, new int[] {
Color.RED, Color.GREEN, Color.BLUE },
null, Shader.TileMode.MIRROR);
}
public Xfermodes (Context context)
: base (context)
{
mSrcB = makeSrc (W, H);
mDstB = makeDst (W, H);
// make a ckeckerboard pattern
int[] colors = new int[] {
unchecked((int)0xFFFFFFFF), unchecked((int)0xFFCCCCCC),
unchecked((int)0xFFCCCCCC), unchecked((int)0xFFFFFFFF)
};
Bitmap bm = Bitmap.createBitmap (colors, 2, 2, Bitmap.Config.RGB_565);
mBG = new BitmapShader (bm,
Shader.TileMode.REPEAT,
Shader.TileMode.REPEAT);
Matrix m = new Matrix ();
m.setScale (6, 6);
mBG.setLocalMatrix (m);
}
static Shader MakeSweep (RectF r, GradData data, Shader.TileMode tile)
{
return new SweepGradient (
r.centerX (), r.centerX (), data.Colors, data.Pos);
}
static Shader MakeRadial (RectF r, GradData data, Shader.TileMode tile)
{
return new RadialGradient (
r.centerX (), r.centerY (), r.centerX (), data.Colors, data.Pos, tile);
}
static Shader MakeLinear (RectF r, GradData data, Shader.TileMode tile)
{
return new LinearGradient (
r.left, r.top, r.right, r.bottom, data.Colors, data.Pos, tile);
}