public?class?WuziqiPanel?extends?View?{
????private?int?mPanelwidth;
????private?float?mLineheight;
????private?int?MAX_LINE?=?10;
????private?Paint?mPaint?=?new?Paint();

????public?WuziqiPanel(Context?context,?AttributeSet?attrs)?{
????????super(context,?attrs);
????????setBackgroundColor(0x44ff0000);
????????init();
????}

????private?void?init()?{
????????mPaint.setColor(0x88000000);
????????mPaint.setAntiAlias(true);
????????mPaint.setDither(true);
????????mPaint.setStyle(Paint.Style.STROKE);
????}

????@Override
????protected?void?onMeasure(int?widthMeasureSpec,?int?heightMeasureSpec)?{
????????int?widthSize?=?MeasureSpec.getSize(widthMeasureSpec);
????????int?widthMode?=?MeasureSpec.getMode(widthMeasureSpec);
????????int?heightSize?=?MeasureSpec.getSize(heightMeasureSpec);
????????int?heightMode?=?MeasureSpec.getMode(heightMeasureSpec);
????????int?width?=?Math.min(widthSize,heightSize);
????????if?(widthMode==MeasureSpec.UNSPECIFIED){
????????????width?=?heightSize;
????????}else?if(heightMode==MeasureSpec.UNSPECIFIED){
????????????width?=?widthSize;
????????}
????????setMeasuredDimension(width,width);

????}

????@Override
????protected?void?onSizeChanged(int?w,?int?h,?int?oldw,?int?oldh)?{
????????super.onSizeChanged(w,?h,?oldw,?oldh);
????????mPanelwidth?=?w;
????????mLineheight?=?mLineheight*1.0f/MAX_LINE;
????}

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

????private?void?drawBoard(Canvas?canvas)?{
????????int?w?=?mPanelwidth;
????????float?lineHeight?=?mLineheight;
????????for(int?i=0;i<MAX_LINE;i++){
????????????int?startX?=?(int)?(lineHeight/2);
????????????int?endX?=?(int)?(w-lineHeight/2);
????????????int?y?=?(int)?((0.5+i)*lineHeight);
????????????canvas.drawLine(startX,y,endX,y,mPaint);
????????????canvas.drawLine(y,startX,y,endX,mPaint);
????????}
????}
}