I have a large bitmap (say 3888×2592) in a file. Now, I want to resize that bitmap to 800×533 and save it to another file. I normally would scale the bitmap by calling Bitmap.createBitmap method but it needs a source bitmap as the first argument, which I can’t provide because loading the original image into … Read more
I have an instance of a System.Drawing.Bitmap and would like to make it available to my WPF app in the form of a System.Windows.Media.Imaging.BitmapImage. What would be the best approach for this? 10 Answers 10
Using C#, is there a better way to convert a Windows Bitmap to a byte[] than saving to a temporary file and reading the result using a FileStream? 10 Answers 10
This seems simple, I am trying to set a bitmap image but from the resources, I have within the application in the drawable folder. bm = BitmapFactory.decodeResource(null, R.id.image); Is this correct? 6 Answers 6
Bitmap bmp = intent.getExtras().get(“data”); int size = bmp.getRowBytes() * bmp.getHeight(); ByteBuffer b = ByteBuffer.allocate(size); bmp.copyPixelsToBuffer(b); byte[] bytes = new byte[size]; try { b.get(bytes, 0, bytes.length); } catch (BufferUnderflowException e) { // always happens } // do something with byte[] When I look at the buffer after the call to copyPixelsToBuffer the bytes are all 0… … Read more
I have a bitmap taken of a Base64 String from my remote database, (encodedImage is the string representing the image with Base64): profileImage = (ImageView)findViewById(R.id.profileImage); byte[] imageAsBytes=null; try { imageAsBytes = Base64.decode(encodedImage.getBytes()); } catch (IOException e) {e.printStackTrace();} profileImage.setImageBitmap( BitmapFactory.decodeByteArray(imageAsBytes, 0, imageAsBytes.length) ); profileImage is my ImageView Ok, but I have to resize this image before … Read more
How can I convert a Bitmap image to Drawable ? 1Best Answer 11 Try this it converts a Bitmap type image to Drawable Drawable d = new BitmapDrawable(getResources(), bitmap);
I am working on a function to download an image from a web server, display it on the screen, and if the user wishes to keep the image, save it on the SD card in a certain folder. Is there an easy way to take a bitmap and just save it to the SD card … Read more
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 7 years ago. Improve this question How do you use an image referenced by URL in an ImageView? 23 s 23 … Read more
I would like to set a certain Drawable as the device’s wallpaper, but all wallpaper functions accept Bitmaps only. I cannot use WallpaperManager because I’m pre 2.1. Also, my drawables are downloaded from the web and do not reside in R.drawable. 2Best Answer 21 This piece of code helps. Bitmap icon = BitmapFactory.decodeResource(context.getResources(), R.drawable.icon_resource); Here … Read more
