From 2262a42a256a0dee32d36f7d8ddd468b60505aff Mon Sep 17 00:00:00 2001
From: Mark Schuette <mark.schuette@xing.com>
Date: Thu, 22 Jan 2015 13:30:13 +0100
Subject: [PATCH] only add input to the session if there is an input

This will prevent NSInvalidArgumentException on iOS8 in case the permission for
the camera was revoked in the settings.
---
 Classes/NBNImageCaptureCell.m | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Classes/NBNImageCaptureCell.m b/Classes/NBNImageCaptureCell.m
index e1076ce..eff6190 100644
--- a/Classes/NBNImageCaptureCell.m
+++ b/Classes/NBNImageCaptureCell.m
@@ -41,7 +41,10 @@ - (void)setupImagePicker {
         AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
         NSError *error = nil;
         AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice:device error:&error];
-        [captureSession addInput:input];
+
+        if (input) {
+            [captureSession addInput:input];
+        }
         
         AVCaptureVideoPreviewLayer *captureVideoPreviewLayer = [[AVCaptureVideoPreviewLayer alloc] initWithSession:captureSession];
         captureVideoPreviewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;