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Questions - bitmapfactory

Why are RGB values lost if Alfa=0, when saving in png format?

when i create Bitmap Bitmap newBitmap = Bitmap.createBitmap(10, 10, Bitmap.Config.ARGB_8888); and edit pixels with Alfa (1-255) newBitmap.setPixel(0, 0, Color.argb(255, 50, 100, 250)); and save to p...
test-img

Chego

java

bitmap

png

bitmapfactory

argb

Votes: 0

Answers: 1

Latest Answer

Why are RGB values lost if Alfa=0, when saving in png format? How to fix it? There is no (visual) difference, of course, between ARGB(0,0,0,0) and ARGB(0,anythingelse)... but 0/0/0/0 compresses way ...
test-img

rzwitserloot

Method to decode partial JPEG byte array in Android

I'm working on an Android app where I have a byte array of a JPEG image and need to display it. Currently, I'm decoding it in Android with this code: Bitmap bitmap = BitmapFactory.decodeByteArray(ima...
test-img

gfrung4

android

bitmap

jpeg

bitmapfactory

Votes: 0

Answers: 0

How to determine if BitmapFactory.decodeStream has finished decoding the image from a socket InputStream?

I'm developing an Android app that receives an image via BluetoothSocket and I'm trying to retrieve its Bitmap by using the BitmapFactory.decodeStream() method, so something like: // Create BluetoothS...
test-img

galligio

java

android

sockets

stream

bitmapfactory

Votes: 0

Answers: 2

Latest Answer

When BitmapFactory.decodeStream() is ready it will close the stream. And hence the socket will be closed too. You say it hangs? Wel... hmmmm. hmmm. That is why i said you earlier that the server shoul...
test-img

blackapps

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