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POOverlay camera with resizeable/re-positionable item than upon click merge the images together
 

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  1. POOverlay camera with resizeable/re-positionable item than upon click merge the images together
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    <p>I need to let a user move an image around on the screen and resize it too. </p> <p>That part I have accomplished already.</p> <p>The part that I can't figure out is how to, upon taking a picture, freeze the moveable/resizable Image on the photo-image than merge the two together to make 1 Bitmap.</p> <p>I don't really have any "snippets" of code to post. I am just hoping some people may have had an experience with this before and might care to shed some light.</p> <p>EDIT. I understand that when I take the picture the image is already frozen on the screen. At that instance I capture the items location on canvas. What I need to do is to take the canvas that I already have something drawn on and somehow overlay that onto another canvas that I assigned the photo too.</p> <p>EDIT #2</p> <p>OK ladies and gentlemen. I figured it out. Here is the code for making an overlay for the camera (as described by mmeyer.)</p> <pre><code> Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() { public void onPictureTaken(byte[] imageData, Camera c) { Context ct = new Context; RelativeLayout relativeview = new RelativeLayout(ct); if (imageData != null) { Context ct = HagsCamera.this; new Intent(ct, PreviewandSend.class); Bitmap photo = BitmapFactory.decodeByteArray(imageData, 0, imageData.length); int picwidth= (photo.getWidth()/2); int picheight = (photo.getHeight()/2); Bitmap photocopy = Bitmap.createScaledBitmap(photo, picwidth, picheight, false); Canvas c2 = crv.canvastoreturn; c2.setBitmap(photocopy); //photo.recycle(); ImageView newImage = new ImageView(ct); relativeview.addView(newImage); relativeview.draw(c2); RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams( photo.getWidth()/2, photo.getHeight()/2); relativeview.setLayoutParams(lp); </code></pre> <p>Good luck to you all. I hope this helps save alot of headaches.</p> <p>In short: Make a Bitmap of your picture.<br> Make a canvas for your overlay and toss your stuff up on there<br> Get a copy of your overlay's canvas<br> .setBitmap() that canvas and set it to your photo-bitmap.<br> Make a RelativeLayout and add a new ImageView to that.<br> Draw your canvas on the ImageView.<br> then figure out your layout parameters for your RelativeLayout. </p> <p>Now that I think about it, maybe you can just set the top layer canvas to your Photo's Bitmap...and just save that...... You can test that yourself.</p>
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      1. POOverlay camera with resizeable/re-positionable item than upon click merge the images together
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    1. COAre you saying you want to composite the pixels from a camera preview frame with a bitmap/view you have overlayed onto the surfaceview that holds your camera preview? If so, I have done this and can provide some tips. Is the thing you want to composite onto the preview already in a custom View class you have implemented?
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    2. COYes, everthing is on the screen when the user takes the photo. I just need to put them together in one nice image, I am slowly going through the gentlemen-from-belows answer...but if you tips happen to come at the same time, all the merrier.
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