iOS App Never Asks for Microphone Permissions

Hi, I'm struggling to get my app to gain microphone permissions.
Once compiled and installed on an iPhone, it never asks the user for microphone access.
Obviously, I therefore dont get any sound to my app.
As far as I know, I'm doing everything correctly.
This is how I'm asking for Microphone permissions

Code (CSharp):

1. yield return Application.RequestUserAuthorization(UserAuthorization.Microphone);
2. if (Application.HasUserAuthorization(UserAuthorization.Microphone)) {
3.      selectedDevice = Microphone.devices[0].ToString();
4.      var audioSource = GetComponent<AudioSource>()
5.      audioSource.clip = null;
6.      audioSource.loop = true; // Set the AudioClip to loop
7.      audioSource.mute = false; // Mute the sound, we don't want the player to hear it
8.      audioSource.clip = Microphone.Start(selectedDevice, true, 10, maxFreq);//Starts recording
9.      while (!(Microphone.GetPosition(selectedDevice) > 0)) { } // Wait until the recording has started
10.      audioSource.Play(); // Play the audio source!
11. }

The reason for Microphone permissions have been set in the Build Settings.

Unity Documentation says that it will automatically add Microphone Permissions to the info.plist if there are ANY calls to Microphone. Does my script therefore perhaps need to be in a specific folder like plugins?

(And as a side note, this code still plays whatever the microphone records, through the speaker. Not sure how to stop that)

 

Bump... Still need help :/

 

Thanks Paulius! Turns out that the Application.RequestUserAuthorization doesn't work on iOS, and rather always returns false. Might be something for the Unity team to look at.

 

It would be very good to have explicit control when the permissions are being asked. Today users are very sensitive to permissions and uncontrolled is bad experience.

 

@_Paulius I've been running into a similar issue building to iOS via Unity cloud. My application requires camera and photo access and runs smoothly on Android. When I test the app on iOS, the application crashes when trying to open the camera.

When I install my app on iOS, it doesn't ask for any permissions at all which I would guess is the issue. So, what exactly do I need to do to ask for permission to the camera on iOS?

Just include a similar script to the one you posted? Or something else?

 

@_Paulius I added the script you posted above, and the camera permission prompt worked. I was able to access the camera and take a photo. However, when I try to access the photo gallery, the app crashes.

So is there a similar authorization script for accessing the photo/video gallery on iOS?

Thanks.

 

@_Paulius Thanks. This is actually my first experience building to an iOS device. I actually don't own a mac so I've been using macinthecloud and Unity cloud build so I am at a bit of a disadvantage here.

I tried adding in the NSPhotoLibraryUsageDescription to one of my info.plist files but I'm not sure I did it correctly. I am also facing an issue getting the Vuforia plugin to work in...it also causes a crash.

So I'm definitely facing some plugin issues...does it matter that there are multiple info.plist files currently? Or does Unity Cloud build automatically combine them?

Thanks for the help.

 

@_Paulius I had to add the following script and accessing the photo library is now working.

using UnityEngine;
using UnityEditor;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;
using System.IO;
using System.Collections.Generic;

public class campermit : MonoBehaviour {

#if UNITY_IOS
[PostProcessBuild]
static void OnPostprocessBuild(BuildTarget buildTarget, string path)
{
// Read plist
var plistPath = Path.Combine(path, "Info.plist");
var plist = new PlistDocument();
plist.ReadFromFile(plistPath);

// Update value
PlistElementDict rootDict = plist.root;
rootDict.SetString("NSCameraUsageDescription", "Used for taking selfies");

// Write plist
File.WriteAllText(plistPath, plist.WriteToString());
}
#endif
}

 

@_Paulius Does it work on iOS on Unity 4.6.9?

 

@_Paulius
I am on OS 10.12.4, Xcode 8.3.2, Unity 5.6.0f3
I have set Application.RequestUserAuthorization(UserAuthorization.Microphone);
I also have the info.plst Privacy string set.
Since updating to Unity 5.6 I am no longer able to get the microphone permission prompt. I always get the permssion is false. Did not have this issue on 5.4.

 

@_Paulius

I have tried your code fix by using a coroutine calling this :

Code (CSharp):

1. IEnumerator GetMicrophone()
2.     {
3.         yield return Application.RequestUserAuthorization (UserAuthorization.Microphone);
4.         if (Application.HasUserAuthorization (UserAuthorization.Microphone)) {
5.             Debug.Log ("We received the mic");
6.             //StartRecording
7.         } else {
8.             Debug.Log ("We encountered an error");
9.             //Error
10.         }
11.     }

I removed UNITY_USES_WEBCAM on lines 21 and 37 and am still running into the issue that iOS crashes when I try to get an authorization from the phone or tablet.

This is literally all my small app is doing and it simply crashes each time. Please help me ASAP!

iOS Version : 10.0+
Unity Version : 5.6.0f3

 

@_Paulius Does this go for Application.HasUserAuthorization as well?

... Just checked, it worked for me 5.6.1p3

 

Hi,
Application.HasUserAuthorization and Application.RequestUserAuthorization are working in Unity 2017.1.0f3?
I have tried the both in Unity 2017.1.0f3 and iOS 11, but I didn't get the permission dialog and I always got the permission is false.

Thanks for the help.

 

That's right.I am a starter too and couldn't figure out this issue. Could you please share some guide?

 

So when will HasUserAuthorization() and RequestUserAuthorization() work for Android? Is Unity working on that or is that something that we will have to build ourselves/use 3rd party plugins for?

 

For those where HasUserAuthorization() and RequestUserAuthorization() are not working on iOS, I don't know if this could cause it, but make sure you have "Camera Usage Description" or "Microphone Usage Description" set in Player Settings. I just verified that the microphone request methods work on iOS 10 and 11, in an app build in Unity 2017.1p5.

 

I repurposed another plugin to solve this.

 

Hi. I'm working on an ARKit project and wanted to ask for authorization to use the camera before showing the ARKit scene. I used this code but I never get the dialog. I thought that there was a conflict with ARKit, so I created an empty project, added an empty object with only this code and I didn't get the dialog either. The following is the code I'm using:

Code (CSharp):

1.  
2. using System.Collections;
3. using System.Collections.Generic;
4. using UnityEngine;
5.  
6. public class Controller : MonoBehaviour {
7.  
8.     IEnumerator Start () {
9.         yield return Application.RequestUserAuthorization(UserAuthorization.WebCam);
10.         if (Application.HasUserAuthorization(UserAuthorization.WebCam)) {
11.             print("Authorized");
12.         } else {
13.             print("Not Authorized");
14.         }
15.     }
16. }
17.  

I always get the message "Not Authorized" on the console, but no dialog box. I have the Usage Description message set in info.plist and my version of Unity is 2018.2.8f1. I've been trying the whole day. Please, let me know if there is something I forgot or any possible solution. Thanks!

 

Thanks! I decided to implement a plugin I found in the forum. I can't remember the author, but it works like a charm. I studied the code and I think I won't have any problems that way. I hope Unity provides a better solution in the future. Thanks again for your response!

 

Would be good to know if an updated solution will come with the ARFoundation/ARKit/ARCore packages. It would make sense that if any of these packages are in use, then the permission request code should work and be included without the need for WebcamTexture references.

 

Wait a minute. You can build an ARFoundation iOS app without the application ever asking for camera permissions? When would that ever be necessary? Just include a dummy reference to WebCamTexture as boilerplate in all ArFoundation projects Unity. For fudge sake.

 

@_Paulius is there an update on this issue?

For me, the request for the Camera Pemission pops up on forst app start, but not at runtime when i Call

Code (CSharp):

1. Application.RequestUserAuthorization

. That is very unfortunate.

 

A little late, but it might benefit someone...

I think this is by design. When your app is freshly installed and you either start using the camera or call

Application.RequestUserAuthorization(...)

, then a dialog box will be displayed to the user asking for camera permission. This box contains the text from the player setting's

cameraUsageDescription

, so make sure to provide that.

Any subsequent call to the camera or to

Application.RequestUserAuthorization(...)

will silently fail, if permissions were denied. Your app is responsible to ask the user to go the settings app and grant camera access to your app.

Application.HasUserAuthorization(...)

returns the current permission as set in the settings app correctly, so you can use it to decide whether or not to prompt the user to go to the settings app.

 

I do have a cameraUsageDescription, a fresh install. I call Permission.RequestUserPermission(Permission.Camera) or Application.RequestUserAuthorization(UserAuthorization.WebCam);
Same thing on iOS / Android.
The camera permission dialog does get called when I attempt to start the ARFoundation camera, but I would like to do it before that.

 

Been doing research on this topic. It's 2022 and it seems Unity has not improved the permission flow for iOS. Android seems to have nice examples and documentation. I was able to have a prompt come up for webcam one time, but once the decision was made the prompt never ever shows again. I do wish there was more support on App Permission as this is actually a cyber risk.