Method drawGradients

examples/scenes/src/ShadersScene.java:119–187

(Canvas canvas)

    }

    private void drawGradients(Canvas canvas) {
        canvas.save();

        Shader[] shaders = new Shader[] {
            Shader.makeLinearGradient( 0,  0, 60,  0, new int[] { 0xFF247ba0, 0xFFf3ffbd }),
            Shader.makeLinearGradient(20,  0, 40,  0, new int[] { 0xFF247ba0, 0xFFf3ffbd }),
            Shader.makeLinearGradient(20,  0, 40,  0, new int[] { 0xFF247ba0, 0xFFf3ffbd }, null, GradientStyle.DEFAULT.withTileMode(FilterTileMode.REPEAT)),
            Shader.makeLinearGradient(20,  0, 40,  0, new int[] { 0xFF247ba0, 0xFFf3ffbd }, null, GradientStyle.DEFAULT.withTileMode(FilterTileMode.MIRROR)),
            Shader.makeLinearGradient(20,  0, 40,  0, new int[] { 0xFF247ba0, 0xFFf3ffbd }, null, GradientStyle.DEFAULT.withTileMode(FilterTileMode.DECAL)),
            Shader.makeLinearGradient( 0,  0,  0, 60, new int[] { 0xFF247ba0, 0xFFf3ffbd }),
            Shader.makeLinearGradient( 0,  0,  0, 60, new int[] { 0xFF247ba0, 0xFFf3ffbd }, null, GradientStyle.DEFAULT.withLocalMatrix(Matrix33.makeRotate(45))),
            Shader.makeLinearGradient( 0,  0, 60, 60, new int[] { 0xFF247ba0, 0xFFf3ffbd }),
            Shader.makeLinearGradient( 0,  0, 60,  0, new int[] { 0xFF247ba0, 0x00000000 }),
            Shader.makeLinearGradient( 0,  0, 60,  0, new int[] { 0xFF247ba0, 0xFFff1654, 0xFF70c1b3, 0xFFf3ffbd, 0xFFb2dbbf }),
            Shader.makeLinearGradient( 0,  0, 60,  0, new int[] { 0xFF247ba0, 0xFFff1654, 0xFF70c1b3, 0xFFf3ffbd, 0xFFb2dbbf }, new float[] {0f, 0.1f, 0.2f, 0.9f, 1f}),

            Shader.makeRadialGradient(30, 30, 30, new int[] { 0xFF247ba0, 0xFFf3ffbd }),
            Shader.makeRadialGradient(30, 30, 10, new int[] { 0xFF247ba0, 0xFFf3ffbd }),
            Shader.makeRadialGradient(30, 30, 10, new int[] { 0xFF247ba0, 0xFFf3ffbd }, null, GradientStyle.DEFAULT.withTileMode(FilterTileMode.REPEAT)),

            Shader.makeTwoPointConicalGradient(20, 20, 10, 40, 40, 40, new int[] { 0xFF247ba0, 0xFFf3ffbd }),

            Shader.makeSweepGradient(30, 30, new int[] { 0xFF247ba0, 0xFFf3ffbd }),
            Shader.makeSweepGradient(30, 30, 45, 315, new int[] { 0xFF247ba0, 0xFFff1654, 0xFF70c1b3, 0xFFf3ffbd, 0xFFb2dbbf }, null, GradientStyle.DEFAULT.withTileMode(FilterTileMode.DECAL)),
        };
            
        try (Paint fill = new Paint()) {
            for (Shader sh: shaders) {
                fill.setShader(sh);
                canvas.drawRect(Rect.makeXYWH(0, 0, 60, 60), fill);
                canvas.translate(70, 0);
                sh.close();
            }
        }

        try (var sh = Shader.makeSweepGradient(30, 30, new int[] { 0xFFFF00FF, 0xFF00FFFF, 0xFFFFFF00, 0xFFFF00FF });
             var stroke = new Paint().setShader(sh).setMode(PaintMode.STROKE).setStrokeWidth(10))
        {
            canvas.drawCircle(30, 30, 30, stroke);
            canvas.translate(70, 0);
        }

        try (Path p1 = new PathBuilder().lineTo(30.1f, 0).lineTo(0, 32.5f).closePath().build();
             Shader s1 = Shader.makeLinearGradient(0, 32.5f, 30.1f, 0, 
                new int[] {0xFF0095D5, 0xFF3C83DC, 0xFF6D74E1, 0xFF806EE3},
                new float[] {0.1183f, 0.4178f, 0.6962f, 0.8333f});
             Paint f1 = new Paint().setShader(s1);

             Path p2 = new PathBuilder().moveTo(30.1f, 0).lineTo(0, 31.7f).lineTo(0, 60).lineTo(30.1f, 29.9f).lineTo(60, 0).closePath().build();
             Shader s2 = Shader.makeLinearGradient(0, 60, 60, 0,
                new int[] {0xFFC757BC, 0xFFD0609A, 0xFFE1725C, 0xFFEE7E2F, 0xFFF58613, 0xFFF88909},
                new float[] {0.1075f, 0.2138f, 0.4254f, 0.6048f, 0.743f, 0.8232f});
             Paint f2 = new Paint().setShader(s2);

             Path p3 = new PathBuilder().moveTo(0, 60).lineTo(30.1f, 29.9f).lineTo(60, 60).closePath().build();
             Shader s3 = Shader.makeLinearGradient(0, 60, 30.1f, 29.9f,
                new int[] { 0xFF0095D5, 0xFF238AD9, 0xFF557BDE, 0xFF7472E2, 0xFF806EE3 },
                new float[] {0f, 0.3f, 0.62f, 0.8643f, 1f});