如何确定记忆游戏中哪个方块被按下？

Question

I want to develop an simple memory game on Android.

The memory game have squares like the picture below. How should I determine which of the square is pressed? Should I use image buttons? Personally I don't think it is an good idea to make the game with image buttons. Could you suggest me an solution on how I should determine which of the square is pressed?

Answer 1

I think ImageView s for each square is the best way to go, no need for buttons.

Note: View s would be sufficient, you can implement onClick(View) for any view.

UPDATE: Since you have a Graphics (as opposed to View s) for your squares, you may indeed use the coordinates to determine which square is touched, but I don't think this is the easiest, nor the best approach.

Why don't you want a GridLayout or a TableLayout containing ImageView s?

Answer 2

If you have a view where you draw the squares then put a onClick() listener in that view and inside the onClick() do like this: (this is taken from a Sudoku game I made)

@Override
public boolean onTouch(View v, MotionEvent event)
{
    switch (event.getAction()) {
        case MotionEvent.ACTION_DOWN:
            // keep where the user first touch the screen
            touchedX = (int) event.getX() / wid33; // the square width
            touchedY = (int) event.getY() / hei33; // the square height
            break;

        case MotionEvent.ACTION_UP:
            // see if the touched square is the same
            int X = (int) event.getX() / wid33;
            int Y = (int) event.getY() / hei33;
            if (X == touchedX && Y == touchedY)
            {
             // the square is the same, do what you have to do
            }
            break;

        case MotionEvent.ACTION_CANCEL:
            touchedX = -1;
            touchedY = -1;
            break;

        default:
            return super.onTouchEvent(event);
    }
    return true;
}

Answer 3

Consider using Canvas or even OpenGL ES to render your game. This approach gives you more flexibility and better performance.

To check witch square was touched handle touch event you can use OnTouchListener .

This or this answer might be helpful to start your code.