Refresh gallery

Mọi người cho e hỏi vấn đề này với, e muốn chụp ảnh cái textview lại, nhưng khi code chụp xong rồi thì vào thu mục ảnh lại không thấy hiện ảnh lên ạ. Code:

import android.content.ContentValues
import android.content.Context
import android.content.Intent
import android.graphics.Bitmap
import android.net.Uri
import android.os.Build
import android.os.Environment
import android.provider.MediaStore
import android.text.format.DateFormat
import android.widget.Toast
import java.io.File
import java.io.FileOutputStream
import java.io.OutputStream
import java.util.*

data class TakeSS(val bitmap: Bitmap, val context: Context, val img_name: String) {
    fun savescrolltoGallery() {
        val date = Date()
        val now = DateFormat.format("yyyyMMddhhmmss", date)
        val fos: OutputStream
        try {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                val resolver = context.contentResolver
                val contentValue = ContentValues()
                contentValue.put(MediaStore.MediaColumns.DISPLAY_NAME, "$img_name.jpg")
                contentValue.put(MediaStore.MediaColumns.MIME_TYPE, "image/jpg")
                contentValue.put(
                    MediaStore.MediaColumns.RELATIVE_PATH,
                    Environment.DIRECTORY_PICTURES + File.separator + "Huyền Học"
                )
                val imageUri =
                    resolver?.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValue)
                fos = resolver?.openOutputStream(Objects.requireNonNull(imageUri)!!)!!
                bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos)
                Toast.makeText(context, "$img_name.jpg", Toast.LENGTH_LONG).show()
            }
            else{
                TakeSS(bitmap)
            }
        } catch (e: Exception) {
            Toast.makeText(context, e.toString(), Toast.LENGTH_LONG).show()
        }
    }
    fun TakeSS(contrain_content: Bitmap) {
        val date = Date()
        val now = DateFormat.format("yyyyMMddhhmmss", date)
        try {
            // image naming and path  to include sd card  appending name you choose for file
            val mPath =
                Environment.getExternalStorageDirectory()
                    .toString() + "/Huyền Học/$img_name.jpg"
            val imageFile = File(mPath)
            imageFile.parentFile!!.mkdirs()
            val outputStream = FileOutputStream(imageFile)
            val quality = 100
            contrain_content.compress(
                Bitmap.CompressFormat.JPEG,
                quality,
                outputStream
            )
            outputStream.flush()
            outputStream.close()

            val uri = Uri.fromFile(imageFile)
            Toast.makeText(context, img_name, Toast.LENGTH_SHORT).show()
        } catch (e: Throwable) {
            // Several error may come out with file handling or DOM
            e.printStackTrace()
        }

    }
}