コード例 #1
0
 private static Drawable generateCircleDrawable(final int color) {
   ShapeDrawable drawable = new ShapeDrawable(new OvalShape());
   drawable.setShaderFactory(
       new ShapeDrawable.ShaderFactory() {
         @Override
         public Shader resize(int width, int height) {
           return new LinearGradient(0, 0, 0, 0, color, color, Shader.TileMode.REPEAT);
         }
       });
   return drawable;
 }
コード例 #2
0
  private Drawable createInnerStrokesDrawable(final int color, float strokeWidth) {
    if (!mStrokeVisible) {
      return new ColorDrawable(Color.TRANSPARENT);
    }

    ShapeDrawable shapeDrawable = new ShapeDrawable(new OvalShape());

    final int bottomStrokeColor = darkenColor(color);
    final int bottomStrokeColorHalfTransparent = halfTransparent(bottomStrokeColor);
    final int topStrokeColor = lightenColor(color);
    final int topStrokeColorHalfTransparent = halfTransparent(topStrokeColor);

    final Paint paint = shapeDrawable.getPaint();
    paint.setAntiAlias(true);
    paint.setStrokeWidth(strokeWidth);
    paint.setStyle(Style.STROKE);
    shapeDrawable.setShaderFactory(
        new ShaderFactory() {
          @Override
          public Shader resize(int width, int height) {
            return new LinearGradient(
                width / 2,
                0,
                width / 2,
                height,
                new int[] {
                  topStrokeColor,
                  topStrokeColorHalfTransparent,
                  color,
                  bottomStrokeColorHalfTransparent,
                  bottomStrokeColor
                },
                new float[] {0f, 0.2f, 0.5f, 0.8f, 1f},
                TileMode.CLAMP);
          }
        });

    return shapeDrawable;
  }