[안드로이드] 권한관련 순서

1.액티비티 자체에서 권한을 요청한다. 

permissionsNeeded에 들어갈 String배열은 이미 Manifes.permission.READ_EXTERNAL_STORAGE같이

정해졌다.

Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.WRITE_EXTERNAL_STORAGE,
Manifest.permission.CAMERA

ArrayList<String> permissionsNeeded = new ArrayList<>();

ActivityCompat.requestPermissions(activity,
permissionsNeeded.toArray(new String[permissionsNeeded.size()]),
requestCode);

 

2. 권한 요청된 값이 돌아온다.

requestCode는 미리 약속된 값들이다.

 

    @Override
    public void onRequestPermissionsResult(
            int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode) {
            case CAMERA_PERMISSIONS_REQUEST:
                if (PermissionUtils.permissionGranted(requestCode, CAMERA_PERMISSIONS_REQUEST, grantResults)) {
                    startCamera();
                }
                break;
        }
    }