Android save image into gallery

saveToGallery.kt

    // Android save image into gallery    

    private fun saveImage(image: File) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            saveImageWithMediaStore(image)
        } else {
            saveImageDirectly(image)
        }
    }

    private fun saveImageWithMediaStore(image: File) {
        val values = contentValues().apply {
            put(MediaStore.Images.Media.RELATIVE_PATH, Constants.Image.IMAGE_FOLDER_NAME)
            put(MediaStore.Images.Media.IS_PENDING, true)
            // RELATIVE_PATH and IS_PENDING are introduced in API 29.
        }

        val resolver = context.contentResolver
        val uri: Uri? = resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values)
        if (uri != null) {
            val outputStream = resolver.openOutputStream(uri, "w")

            if (outputStream != null) {
                val inputStream = FileInputStream(image)
                inputStream.copyTo(outputStream)
                values.put(MediaStore.Images.Media.IS_PENDING, false)
                context.contentResolver.update(uri, values, null, null)
            }
        }
    }

    private fun saveImageDirectly(image: File) {
        val directory = File(Environment.getExternalStorageDirectory().toString() + "/" + Constants.Image.IMAGE_FOLDER_NAME)
        // getExternalStorageDirectory is deprecated in API 29

        if (!directory.exists()) {
            directory.mkdirs()
        }

        val timeStamp = getCurrentTimeString()
        val fileName = "$timeStamp.jpg"
        val file = File(directory, fileName)

        val inputStream = FileInputStream(image)
        val outputStream = FileOutputStream(file)
        inputStream.copyTo(outputStream)

        val values = contentValues()
        values.put(MediaStore.Images.Media.DATA, file.absolutePath)
        // .DATA is deprecated in API 29
        context.contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values)
    }

    private fun getCurrentTimeString() = SimpleDateFormat("yyyyMMdd_HHmmss").format(Date())

    private fun contentValues() : ContentValues {
        return ContentValues().apply {
            put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg")
            put(MediaStore.Images.Media.DATE_ADDED, System.currentTimeMillis() / 1000)
            put(MediaStore.Images.Media.DATE_TAKEN, System.currentTimeMillis())
        }
    }