Saving and Reading Bitmaps/Images from Internal memory in Android

Question

What I want to do, is to save an image to the internal memory of the phone (Not The SD Card).

How can I do it?

I have got the image directly

Answer 1

if you want to follow Android 10 practices to write in storage, check here and if you only want the images to be app specific, here for example if you want to store an image just to be used by your app:

viewModelScope.launch(Dispatchers.IO) {
            getApplication().openFileOutput(filename, Context.MODE_PRIVATE).use {
                bitmap.compress(Bitmap.CompressFormat.PNG, 50, it)
            }
        }

getApplication is a method to give you context for ViewModel and it's part of AndroidViewModel later if you want to read it:

viewModelScope.launch(Dispatchers.IO) {
            val savedBitmap = BitmapFactory.decodeStream(
                getApplication().openFileInput(filename).readBytes().inputStream()
            )
        }