Hi,
I am doing a painting program (KIds Paint - you can find in Android
Market) and I have a lot of requests to save the content on disk or to
wallpaper. I have been searching around but cannot find solution.
My guess is that I probably wanted to get the bitmap from the canvas,
but I can't find ways to get it. Then I try to set an empty bitmap
into the canvas and draw on the canvas, and save the bitmap... but I
got an empty bitmap.
Please help! Thanks. Here's my codes:
public class KidsPaintView extends View {
Bitmap bitmap = null;
...
protected void onDraw(Canvas canvas) {
if (bitmap == null) {
bitmap = Bitmap.createBitmap(width, height,
Bitmap.Config.ARGB_8888);
canvas.setBitmap(bitmap);
}
... // do painting on canvas
}
}
Then in my main code I try to retrieve the bitmap and save it as
wallpaper:
Bitmap bitmap = view.bitmap;
try { setWallpaper(bitmap); }
catch (IOException e) { e.printStackTrace(); }
But all I got is a black wallpaper.
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