Question

Well I’ve createad a SurfaceView that displays a bitmap, without problems. But I want to display a Text in the bottom of the screen, I think it can be called the canvas.

I tried to draw the text the same way than i did with the bitmap, but without success. I get de force close error.

I’ve got something like this:

        public void run() {

        while (isRunning) {
            if (!ourHolder.getSurface().isValid())
                continue;

            Canvas canvas = ourHolder.lockCanvas();

            canvas.drawColor(Color.WHITE);

            canvas.drawText(score, 200, 100, null);

            canvas.drawBitmap(enemy1, enemy1X, enemy1Y, null); // DRAW FIRST
                                                                // ENEMY

            ourHolder.unlockCanvasAndPost(canvas);

I already tried to set up a new Paint too, instead of using the “null”, but it didn’t worked as well :/

Can you please tell how it must be done, or why it isn’t working. Im new to Android Programming…

Thanks 😉

Answer 1

Strange. Сode looks clear.
The picture does not cover the text?

Yet assign a text paint and set the color. Try this for tests:

Canvas canvas = null;
try {
    canvas = ourHolder.lockCanvas();
    synchronized (ourHolder) {
        canvas.drawColor(Color.WHITE);
        canvas.drawBitmap(enemy1, enemy1X, enemy1Y, null);
        Paint paint = new Paint();
        paint.setColor(Color.RED);
        canvas.drawText("XXXX", 200, 100, paint);
    }
} catch (Exception e) {
    Log.e(TAG, "run() lockCanvas()", e);
} finally {
    if (canvas != null) {
        ourHolder.unlockCanvasAndPost(canvas);
    }
}

ADD

The SurfaceView dimension is greater than 200х100? Try canvas.drawText("XXXX", 20, 20, paint);