getMultiplePermisions.kt

    private fun getPermission() {
        Dexter.withContext(this)
            .withPermissions(
                Manifest.permission.CAMERA,
                Manifest.permission.WRITE_EXTERNAL_STORAGE
            ).withListener(object : MultiplePermissionsListener {
                override fun onPermissionsChecked(report: MultiplePermissionsReport) {
                    report.let {

                        if (report.areAllPermissionsGranted()) {
                            Toast.makeText(this@MainActivity, "Permissions Granted", Toast.LENGTH_SHORT).show()
                        } else {
                            Toast.makeText(this@MainActivity, "Please Grant Permissions to use the app", Toast.LENGTH_SHORT).show()
                        }

                    }
                }

                override fun onPermissionRationaleShouldBeShown(permissions: List<PermissionRequest?>?, token: PermissionToken?) {
                    token?.continuePermissionRequest()
                }
            }).withErrorListener{
                Toast.makeText(this, it.name, Toast.LENGTH_SHORT).show()
            }.check()

    }