MultiColorSpan.java 文件源码

@Override
public void updateDrawState(TextPaint paint) {
    paint.setStyle(Paint.Style.FILL);
    Shader shader = new LinearGradient(0, 0, 0, paint.getTextSize() * colors.length, colors, null,
            Shader.TileMode.MIRROR);
    Matrix matrix = new Matrix();
    matrix.setRotate(angle);
    shader.setLocalMatrix(matrix);
    paint.setShader(shader);
}