public class WuziqiPanel extends View {

private int mPanelWidth;

private float mLineHight;

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(0x44ff0000);

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 heighSize = MeasureSpec.getSize(heightMeasureSpec);

int heighMode = MeasureSpec.getMode(heightMeasureSpec);

int width = Math.min(widthSize, heighSize);

if (widthMode == MeasureSpec.UNSPECIFIED) {

width = heighSize;

} else if (heighMode == MeasureSpec.UNSPECIFIED) {

width = widthSize;

}

setMeasuredDimension(width, width);

}

@Override

protected void onSizeChanged(int w, int h, int oldw, int oldh) {

// TODO Auto-generated method stub

super.onSizeChanged(w, h, oldw, oldh);

mPanelWidth = w;

mLineHight = 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 = mLineHight;

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);

}

}

}