BackgroundView.java 文件源码

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    // ����ͼ��ı���ɫ
    canvas.drawColor(Color.TRANSPARENT);
    // ��ӻ���
    Paint paint_Line = new Paint();
    paint_Line.setAntiAlias(true); // �����
    paint_Line.setStrokeWidth(2); // ���û��ʿ��
    paint_Line.setStyle(Style.STROKE);
    paint_Line.setColor(Color.BLACK); // ���ʵ���ɫ

    Paint paint_Point = new Paint();
    paint_Point.setAntiAlias(true); // �����
    paint_Point.setStrokeWidth(4); // ���û��ʿ��
    paint_Point.setStyle(Style.STROKE);
    paint_Point.setColor(Color.RED); // ���ʵ���ɫ
    paint_Point.setStrokeCap(Cap.ROUND);//Բͷ�Ļ���ͷ

    drawDpLine(canvas, line_point, paint_Line);
}