Permission returning false even when allowed

Issue

I am checking if my application have access to camera and to write external storage, but the first time when I am asked for permission even after giving them the app still return false, Here is my code

   private fun getPermission(): Boolean {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        if( (checkSelfPermission(android.Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED )&&
            checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE) ==PackageManager.PERMISSION_GRANTED) {
            return true
        } else {
            requestPermissions(listOf(CAMERA, WRITE_EXTERNAL_STORAGE).toTypedArray(), 1)

        }
    }
return false

}

so if, I use this function getPermission it will first time return false (on screen I am allowing my application to access camera and storage ) and on next turn (I go back to home activity and again open this Camera activity) this time I am not asked for permissions and my application starts using camera.

Solution

As described in @Marko answer all I was missing was onRequestPermissionsResult callback, here is the code:

 //the is a overridden method
 override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
    if(requestCode==1){
        if(grantResults[0]==PERMISSION_DENIED && grantResults[1]== PERMISSION_DENIED){
            AlertDialogBox().createBuilder(this,"Permission","Camera and Storage permission denied","ok")
        }else if(grantResults[1]== PERMISSION_DENIED){
            AlertDialogBox().createBuilder(this,"Permission","Storage permission denied","ok")
        }else if(grantResults[0]== PERMISSION_DENIED){
            AlertDialogBox().createBuilder(this,"Permission","Camera permission denied","ok")
        }
    }
    super.onRequestPermissionsResult(requestCode, permissions, grantResults)

}

Answered By - Abdul Rahman Shamair