Mega Code Archive
Extends View to create game board
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package app.test;
import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.os.Bundle;
import android.view.View;
class GameBoard extends View {
private int nSquares, colorA, colorB;
private Paint paint;
private int squareDim;
public GameBoard(Context context, int nSquares, int colorA, int colorB) {
super(context);
this.nSquares = nSquares;
this.colorA = colorA;
this.colorB = colorB;
paint = new Paint();
}
@Override
protected void onDraw(Canvas canvas) {
for (int row = 0; row < nSquares; row++) {
paint.setColor(((row & 1) == 0) ? colorA : colorB);
for (int col = 0; col < nSquares; col++) {
int a = col * squareDim;
int b = row * squareDim;
canvas.drawRect(a, b, a + squareDim, b + squareDim, paint);
paint.setColor((paint.getColor() == colorA) ? colorB : colorA);
}
}
}
@Override
protected void onMeasure(int widthMeasuredSpec, int heightMeasuredSpec) {
int width = MeasureSpec.getSize(widthMeasuredSpec);
int height = MeasureSpec.getSize(heightMeasuredSpec);
int d = (width == 0) ? height : (height == 0) ? width
: (width < height) ? width : height;
setMeasuredDimension(d, d);
squareDim = width / nSquares;
}
}
public class Test extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
GameBoard gb = new GameBoard(this, 8, Color.BLUE, Color.WHITE);
setContentView(gb);
}
}
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