UntukUploadGambar

//inisialisasi
 //untuk edit gambar
    internal lateinit var bitmap: Bitmap
    internal lateinit var decoded: Bitmap
    internal var bitmap_size = 80 // range 1 - 100=
    internal var PICK_IMAGE_REQUEST_1 = 1
    internal var REQUEST_IMAGE_CAPTURE_1 = 11


//didalam on Create
image.setOnClickListener {
            //pakai alert dialog
            val builder = android.app.AlertDialog.Builder(activity)
            builder.setTitle("Pilihan Foto")
            //builder.setMessage("Silahkan memilih lihat foto atau edit lewat kamera atau galeri");

            builder.setPositiveButton(
                "Edit Foto"
            ) { dialog, which ->
                showFileChooser()
            }
            builder.setNegativeButton(
                "Lihat Foto"
            ) {
                    dialog, which ->
                val fm = fragmentManager
                val args = Bundle()
                args.putString("foto", link_foto)
                val dialogFragment = DialogLihatFotoProfil()
                dialogFragment.setStyle(DialogFragment.STYLE_NORMAL, R.style.DialogFragmentTheme)
                dialogFragment.setArguments(args)
                assert(fm != null)
                dialogFragment.show(fm, "Fragment lihat foto")
            }


            val alert = builder.create()
            alert.show()
        }


//diluar OnCreate
//untuk memilih gambar dari galeri
    private fun showFileChooser() {
        val intent = Intent()
        intent.type = "image/*"
        intent.action = Intent.ACTION_GET_CONTENT
        startActivityForResult(Intent.createChooser(intent, "Select Picture"), PICK_IMAGE_REQUEST_1)
    }


    //untuk set ke imageview
    private fun setToImageView(bmp: Bitmap) {
        //compress image
        val bytes = ByteArrayOutputStream()
        bmp.compress(Bitmap.CompressFormat.JPEG, bitmap_size, bytes)
        decoded = BitmapFactory.decodeStream(ByteArrayInputStream(bytes.toByteArray()))
        //menampilkan gambar yang dipilih dari camera/gallery ke ImageView
        image.setImageBitmap(decoded)
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)

        //ini untuk gambar
        if (requestCode == PICK_IMAGE_REQUEST_1 && resultCode == RESULT_OK && data != null && data.data != null) {
            val filePath = data.data
            try {
                //mengambil fambar dari Gallery
                bitmap = MediaStore.Images.Media.getBitmap(activity!!.contentResolver, filePath)
                // 512 adalah resolusi tertinggi setelah image di resize, bisa di ganti.
                setToImageView(getResizedBitmap(bitmap, 512))
                btn_simpan_gambar.visibility = View.VISIBLE
            } catch (e: IOException) {
                e.printStackTrace()
            }

        } else if (requestCode == REQUEST_IMAGE_CAPTURE_1 && resultCode == RESULT_OK) {
            val extras = data?.getExtras()
            val imageBitmap = extras!!.get("data") as Bitmap
            //imageView.setImageBitmap(imageBitmap);
            setToImageView(getResizedBitmap(imageBitmap, 512))
            btn_simpan_gambar.visibility = View.VISIBLE
        } else {
            super.onActivityResult(requestCode, resultCode, data)
        }
    }

    //untuk upload image, compress .JPEG ke bitmap
    fun getStringImage(bmp: Bitmap): String {
        val baos = ByteArrayOutputStream()
        bmp.compress(Bitmap.CompressFormat.JPEG, bitmap_size, baos)
        val imageBytes = baos.toByteArray()
        return Base64.encodeToString(imageBytes, Base64.DEFAULT)
    }

    // fungsi resize image
    fun getResizedBitmap(image: Bitmap, maxSize: Int): Bitmap {
        var width = image.width
        var height = image.height

        val bitmapRatio = width.toFloat() / height.toFloat()
        if (bitmapRatio > 1) {
            width = maxSize
            height = (width / bitmapRatio).toInt()
        } else {
            height = maxSize
            width = (height * bitmapRatio).toInt()
        }
        return Bitmap.createScaledBitmap(image, width, height, true)
    }