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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 <[email protected]> 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 >> >> [email protected] >> >> >> 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 >> >> > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
