My name
is
Jon Skeet

Error writing text on image

I try to write a text on my image:

private Bitmap drawText() {
    Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
             R.drawable.test); 

    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();
    paint.setColor(Color.BLACK);
    paint.setTextSize(5);
    canvas.drawText("Some Text here", 5, 5, paint);

    Bitmap resBitmap = Bitmap.createBitmap(canvas.getWidth(),
            canvas.getHeight(), Config.RGB_565);
    canvas.setBitmap(resBitmap);
    return resBitmap;

}

the result is a completely black image. What am I doing wrong ?

Disclaimer: I'm not an Android developer. I've never written code like this. It's just my interpretation of the documentation...

I suspect you actually want to set the bitmap to draw onto much earlier, and then draw the other bitmap into the canvas. So something like:

private Bitmap drawText() {
    // Load the existing image to get some dimensions
    Bitmap bitmap = BitmapFactory.decodeResource(getResources(),
        R.drawable.test); 

    // Create a result bitmap and a canvas which draws onto it
    Bitmap resBitmap = Bitmap.createBitmap(bitmap.getWidth(),
        bitmap.getHeight(), Config.RGB_565);
    Canvas canvas = new Canvas(resBitmap);

    // Draw the existing image into the canvas
    canvas.drawBitmap(bitmap, 0f, 0f, null);

    // Draw text on top
    Paint paint = new Paint();
    paint.setColor(Color.BLACK);
    paint.setTextSize(5);
    canvas.drawText("Some Text here", 5, 5, paint);

    return resBitmap;
}

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