Is it possible to save PNG with transparency to Camera Roll?

I've had a user contact me saying that the pictures he creates save as JPG and because they are JPG they lose transparency. I looked at the code I'm using and it's CameraRoll.addBitmapData(bitmapData). I could find no other options or parameters. He also said it is highly compressed JPG as well. If it's not supported (although I thought it was in an earlier version??) is there a work around!?

It isn't really limited due to an iOS issue, just that Adobe chooses to not add PNG with transparency support. I completely disagree with the premise that this should be limited just because on iOS Photo Album doesn't display PNGs with transparency accurately. There are dozens of existing iOS apps now passing around and creating PNGs with transparency (and viewing them properly).
As far as Android, I implemented this myself just using the builtin BitmapData.encode support for creating PNG format ByteArray, and just saving directly to the filesystem a .png file since Android (unlike iOS) allows it.
To make that process clean with the rest of the Android eco-system, you will probably want to include two additional ANE based features (or choose to roll your own ANE that combines everything)...
The two extra steps as far as ANE support is:
1) an ANE that will trigger a refresh of the Android Gallery (or some base directory more exactly) when the filesystem underneath it has changed if you write to the filesystem directly, there are a few ANEs that do this out there like:
http://forums.adobe.com/message/6092838
2) In newer versions of Android, different users get different mapped 'home dirs' for Pictures so you really don't want to just write to some common /mnt/sdcard folder and hope for the best.
The proper base directory to save Pictures to on Android with the newer APIs is to call (on the native Java side):
File path = Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_PICTURES);
Just wrapping that returned directory location above from Java with an ANE, will guarantee you are always working with the proper base directory for the current runtime user in Android.
I don't know if any ANE out there has added that 'Public Pictures Directory' function above but it is a trivial function call, and you could even just tack this on as an additional API function on whatever RefreshGallery ANE you grab (with source code of course)

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How do i save a .png with transparent background? cannot find in help

how do i save a .png with transparent background? cannot find in help

rickseng
With what program are you working and with what version of the program and on what computer operating system?
I suspect that you are working with some version of Photoshop Elements. If that is correct, then be advised that some how
your thread got posted in the Adobe Premiere Elements Forum (video editing) instead of the Adobe Photoshop Elements Forum (photo editing).
If Photoshop Elements question, then please re-post your thread in the Adobe Photoshop Elements Forum or wait for a moderator
here to see your thread here and move it from here to there.
Photoshop Elements
Thought....if are creating an image on a transparent background in Photoshop Elements Windows for a Premiere Elements Windows project, then you Save As png or psd.
Please clarify if I have misinterpreted your question.
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ATR

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Images are rectangle or square, even if you have transparency
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I am using iPhoto to organize my digital scrapbooking graphics. Problem is that the majority are png with transparency. When I imported them, all of the transparent portions of the images appeared in black, so many of them just look like black squares, because it's a black image on transparent background.
Is there any way to get the png to look normal or is this a flaw in iPhoto. Is there a way to change the background of the thumbnail to gray?
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Welcome to the Apple Discussions. It's not a flaw but just the nature of the beast. iPhoto is set to display transparent backgrounds as black. Send a feature request to Apple via http://www.apple.com/feedback/iphoto.html.
Happy Holidays

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hey, can this be done?
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even setting the background of the slide to "none" doesn't work
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cheers, D

Ahh, I read this and thought you required the export. You essentially want to take an image from Keynote into some other application WITH transparency, correct? If so, you may want to take a look at Skitch.
http://www.plasq.com/skitch -currently in public beta as a free download
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Hey, I just had this problem, I went into Settings -> Privacy-> Facebook (which is where I was saving photos from) -> turned it on, then back to settings -> Facebook-> and logged in. When I went back to Facebook and saved a photo and it saved to my camera roll. I haven't tried it with anything else yet though. Hope this helps!

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As the question suggests,
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Please compare the resoultion of the two documents too. And a better way of arranging the layers would be to use distribute option in the move tool. You can find more about the move tool at http://helpx.adobe.com/photoshop-elements/using/moving-copying-selections.html#main-pars_h eading_0
Thus your workflow would be:
Create a new document with the required dimension.
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Use distribute option in move tool
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That's a bit, um, oh never mind. Would've been a rubbish joke anyway.
Aww...pooh. I love "rubbish" jokes!
If fireworks is unable to export a transparent png at 24bit, then why have the option?
(granted the option is acutally implied, not given)
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I don't know why your rendering is horrible. I'd have to see your image.
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http://forums.adobe.com/thread/152434
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Is it possible to save PNG with transparency to Camera Roll?

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