That worked perfectly, here is the final code that saves the
screenshot as a file:
//mView is my View
Bitmap screenBMP = Bitmap.createBitmap(mView.getMeasuredWidth(),
mView.getMeasuredHeight(), Bitmap.Config.RGB_565);
Canvas screenShotCanvas = new Canvas(screenBMP);
mView.draw(screenShotCanvas);
try {
FileOutputStream fos = new FileOutputStream("/sdcard/test.jpg");
screenBMP.compress(Bitmap.CompressFormat.JPEG, 100, fos);
fos.close();
} catch (FileNotFoundException e) {
Log.d("error",e.getMessage());
} catch (IOException e) {
Lod.d("error",e.getMessage());
} catch (Exception e) {
Log.d("error",e.getMessage()");
}
On Jan 14, 3:51 pm, James Yum <j...@google.com> wrote:
> Hi,
>
> Try something like this:
>
> 1. Create a new bitmap with the same dimensions as the view.
> 2. Create a new canvas for that bitmap, e.g.:
>
> Canvas screenshotCanvas = new Canvas(screenshotBitmap);
>
> 3. Draw onto the canvas:
>
> view.draw(screenshotCanvas);
>
> Cheers,
> James
>
> On Wed, Jan 14, 2009 at 12:42 PM, srajpal <sraj...@gmail.com> wrote:
>
> > I thought I was drawing the View into the Bitmap with
>
> > screenshot = Bitmap.createBitmap(mView.getDrawingCache());
> > or
> > screenshot = Bitmap.createBitmap(mView.getDrawingCache(),
> > mView.getLeft(), mView.getTop(),
> > mView.getMeasuredWidth(), mView.getMeasuredHeight());
>
> > Is there another, better way?
>
> > On Jan 14, 3:33 pm, James Yum <j...@google.com> wrote:
> >> Just checking, have you thought about drawing the view into a Bitmap?
>
> >> Cheers,
> >> James
>
> >> On Wed, Jan 14, 2009 at 12:29 PM, srajpal <sraj...@gmail.com> wrote:
>
> >> > but i get the same error if i just pick a potion of the screen
>
> >> > screenshot = Bitmap.createBitmap(mView.getDrawingCache(),
> >> > 100,100,100,100);
>
> >> > or try to pass it exact size
>
> >> > screenshot = Bitmap.createBitmap(mView.getDrawingCache(),
> >> > mView.getLeft(), mView.getTop(),
> >> > mView.getMeasuredWidth(), mView.getMeasuredHeight());
>
> >> > any suggestions?
>
> >> > On Jan 14, 1:25 am, Romain Guy <romain...@google.com> wrote:
> >> >> Yes, you are creating a drawing cache that the system has decided is
> >> >> too large. In such a situation, the returned drawing cache is null.
> >> >> You have to account for this.
>
> >> >> On Tue, Jan 13, 2009 at 5:34 PM, srajpal <sraj...@gmail.com> wrote:
>
> >> >> > I am having an issue when trying to save a screen shot of a view to a
> >> >> > file.
>
> >> >> > I am using the following code to save the bitmap
>
> >> >> > Java:
>
> >> >> > Bitmap screenshot;
>
> >> >> > mView.setDrawingCacheEnabled(true);
> >> >> > screenshot = Bitmap.createBitmap(mView.getDrawingCache());
> >> >> > mView.setDrawingCacheEnabled(false);
>
> >> >> > try {
> >> >> > FileOutputStream fos = new FileOutputStream("/sdcard/
> >> >> > test.png");
> >> >> > screenshot.compress(Bitmap.CompressFormat.PNG, 100, fos);
> >> >> > fos.close();
> >> >> > } catch (FileNotFoundException e) {
> >> >> > Log.d("FileNotFoundException: " + e.getMessage());
> >> >> > } catch (IOException e) {
> >> >> > Log.d("IOException: " + e.getMessage());
> >> >> > }
>
> >> >> > it works fine unless i put the following in my onCreate() to make sure
> >> >> > I am in full screen mode
>
> >> >> > Java:
>
> >> >> > getWindow().setFlags
> >> >> > (WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);
>
> >> >> > when that code is in there I get a NullPointerException at
> >> >> > createBitmap
> >> >> > ()
> >> >> > does anybody know why this would be happening?
> >> >> > _________________
> >> >> > --
> >> >> > Sunny
>
> >> >> --
> >> >> Romain Guy
> >> >> Android framework engineer
> >> >> romain...@android.com
>
> >> >> Note: please don't send private questions to me, as I don't have time
> >> >> to provide private support. All such questions should be posted on
> >> >> public forums, where I and others can see and answer them
>
>
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