Native Gallery for Android & iOS [Open Source]

Maybe if your phone was connected to your computer via a USB cable, SD card switched to read-only mode. Try unplugging the device and then saving the image to gallery. Otherwise, I honestly have no idea.

 

Thank you, I did too, but still don't work tho.

 

@yasirkula +++++ for creating a great plugin. It works great however I have a question, is it possible to select album folders from the gallery instead of selecting multiple images? also Is there a way I can override my albums folders content rather than having duplicate images?

 

Thanks! NativeGallery simply sends a request to the native gallery app and waits for a response from it. Unfortunately, it is not possible to alter the behaviour of the gallery app in such ways.

 

Hi there,
I noticed an issue with your plugin with Android Oreo.

Code (CSharp):

1. DocumentsContract.getDocumentId(uri);

behaves a little different in oreo (https://stackoverflow.com/questions...getdocumentiduri-returns-path-instead-of-long). For me checking for the substring "raw:" and removing it as suggested in the question fixed it (in getPathFromURI)

 

Thanks for reporting this! I'll update my plugin(s) accordingly soon.

 

I've updated the GitHub repository, update for the Asset Store version should be live in a few days.

 

Hi @yasirkula , love the plugin, thnx for that!
I do have a small issue with NativeGallery.GetImageFromGallery(). Although I'm using mimeType "image/jpeg" the gallery still shows GIF (NativeGallery.GetImageProperties(path) says mime GIF) and even movies without mimeType set. Any idea how we can filter on just JPG? Or even just images would be great.

using:
Unity 2017.4.8f1
Android 8.1.0
Samsung Note 9

 

Strange.. when I fall back to "images/*" the movies are gone. Fine for now.

 

Mime type is passed as a parameter to the gallery application but it is up to the gallery application to respect that filter. On some devices, as you noticed, it might not work. However, you should be able to load most, if not all, of the images in the gallery via the NativeGallery.LoadImageAtPath function.

 

Rated 5 stars!!
@yasirkula : Why i couldn't save texture2d to persistent data path on android? here my code:

Code (CSharp):

1.     public void PickImage(SpriteRenderer img, int maxSize )
2.     {
3.         NativeGallery.Permission permission = NativeGallery.GetImageFromGallery( ( path ) =>
4.             {
5.                 Debug.Log( "Image path: " + path );
6.                 if( path != null )
7.                 {
8.                     // Create Texture from selected image
9.                     Texture2D texture = NativeGallery.LoadImageAtPath( path, maxSize );
10.                     if( texture == null )
11.                     {
12.                         Debug.Log( "Couldn't load texture from " + path );
13.                         return;
14.                     }
15.                     sp = Sprite.Create(texture, new Rect(0,0, texture.width, texture.height), new Vector2(0.5f,0.5f));
16.                     img.sprite = sp;
17.    
18.                 }
19.             }, "Select a PNG image", "image/png", maxSize );
20.  
21.         Debug.Log( "Permission result: " + permission );
22.  
23.  
24.  
25.     }
26.  

This is the code that sprite doesn't save to persistent data path:

Code (CSharp):

1.     public void SaveImageToDisk(SpriteRenderer img, string filename)
2.     {
3. //        SpriteRenderer renderer = img.GetComponent<SpriteRenderer> ();
4.         Texture2D tempTexture = img.sprite.texture;
5.         byte[] bytes = tempTexture.EncodeToJPG();
6.         File.WriteAllBytes (Application.persistentDataPath + filename, bytes);
7.     }
8.  

any help would be appreciated

 

I have two suggestions:

1) Use

Path.Combine( Application.persistentDataPath, filename )

inside File.WriteAllBytes function
2) tempTexture.EncodeToJPG() can raise an exception if the texture is marked as non-readable. In this case, try not marking the loaded textures as non-readable:

NativeGallery.LoadImageAtPath( path, maxSize, false )

 

@yasirkula : I am surprised, method number 2 just very simple to change textures as non-readable, i was though so complicated before this. You saved my day... Great support and great plugin. Thank you very much..

 

Hi! Thank you for such plugin! I would like to know if there is any possibility to read from an image metadata (EXIF) its geolocation.

I'm using it for Unity Android

Could you please help me?
Thanks in advance!

 

Not with NativeGallery, sorry. You'd probably have to write a custom native Android code for that.

 

What is the easiest way (for both Android and iOS) to do this 2 simple steps:
1. save one picture (texture in fact) - I'm doing here some simple gfx operations combining camera with some texts.
2. and immediately after save - loading just saved texture into another image (let's say preview image), just to be sure how final result of GFX operations looks like.

For the 1st step I'm using NativeGallery.SaveImageToGallery(mySourcePict, "Test", fileName); and it works fine. But I completely don't know how to reload saved picture to myPreviewPict in the 2nd step?

I stuck with paths which are required for LoadImageAtPath. What path should I provide? I red somewhere above, that on Android I cant use physical path. On iOS even worse (this story with persistent path), however I didnt tested that one yet, as I'm on Android stage right now.

 

Why not assign mySourcePict to the Image? If you are trying to make sure that NativeGallery saves the image correctly, you can do so via the Gallery itself.

 

Hi @yasirkula !

Fist of all, great plugin, huge respect! I would like to ask you if direct access - so without the picture selector from the gallery popping up - is possible to image files? I'm planning the following:

1. Fetching gallery path from device (iOS or Android)
2. Reading images (not all of course at once, but batched)

Based on your knowledge on iOS / Android, can this be achieved by using your plugin or extending it with a few functions? Or due to operating system restrictions is it impossible without triggering the picture selector popup?

Thanks a lot,
Bane

 

Hi Bane,

These things should be possible on both platforms because there are a number of open-source image/video selectors out there that must have access to these files somehow. However, it is not possible with NativeGallery, you have to create your own solution from scratch (you can use NativeGallery.LoadImageAtPath to load the images, though).

1. The issue here is that, there is not really a Gallery folder on Android; images showing up in the gallery can be located at almost anywhere on the device. So, you may have to traverse your phone's drive recursively to find all the pictures.

2. In this one, make sure to read only a small thumbnail from each image as textures created at runtime are not compressed in Unity and thus, loading large images can quickly consume all the available memory on your device.

 

will this allow for me to obtain list of photos from users gallery and display them in my own custom gallery viewer?

 

Unfortunately not. NativeGallery lets the native Gallery app handle all these jobs.

 

Hey yasirkula,

Firstly I'd like to thank you for developing the plugin and making it available for free.

Second i'd like to ask for help on an issue we've been having lately for Android. The gallery is no longer opening on Android. I am also not even prompted for permission.
The gallery was opening fine and all until a few days ago, possibly after an android update. I've tested on Android 8 Oreo and Android 9 Pie and I still can't open it. However, the same code works fine for IOS and the gallery opens fine there. I uptated to the latest version available on the asset store 1.2 and I still have the issue.
Here is how I'm calling it, maybe there is something I'm missing.

Code (CSharp):

1.     private void OpenAndroidOrIOSGallery(Image image)
2.     {
3.         int maxSize = image == miniLogo ? 16 : 200;
4.         GameUtils.ShowFloatingMessage("Opening Image Gallery");
5.         NativeGallery.GetImageFromGallery((path) =>
6.         {
7.             GameUtils.ShowFloatingMessage("Inside path");
8.             if (path != null)
9.             {
10.                 Texture2D texture = NativeGallery.LoadImageAtPath(path, maxSize, false);
11.                 SetLoadedTexture(image, texture);
12.             }
13.             else
14.             {
15.                 GameUtils.ShowFloatingMessage("Invalid image Path");
16.             }
17.         }, "Select a JPG or PNG image", "image/png,image/jpeg", maxSize);
18.     }

I get the debug message for "Opening Image Gallery" but I never get the message "Inside path" when I'm no Android. I do get it on IOS.

Debugging with logcat didn't throw any message.

 

Try replacing "image/png,image/jpeg" with "image/*". NativeGallery.LoadImageAtPath can load most, if not all, image types anyways, so that shouldn't be a problem.

 

Thanks for the reply, I changed the line as you suggested but I still didn't see any difference. When I click it it just seems to never be executing the MediaPickCallback callback. Do you have any other suggestion?

 

Check if GetImageFromGallery returns Permission.Denied. If this is the case, uninstall the app, reinstall it and then see if it still doesn't prompt for permission.

 

I went in your RequestPermission() and I debugged on logcat "Debug.Log(nativeCallback.Result);".
It is giving me 0 as result. Here is the rest:

Code (CSharp):

1. 09-27 17:17:17.519  3052  3081 I Unity   : (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/DebugBindings.gen.cpp Line: 51)
2. 09-27 17:17:17.519  3052  3081 I Unity   :
3. 09-27 17:17:20.188  3052  3081 I Unity   : RequestPermission
4. 09-27 17:17:20.188  3052  3081 I Unity   :
5. 09-27 17:17:20.188  3052  3081 I Unity   : (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/DebugBindings.gen.cpp Line: 51)
6. 09-27 17:17:20.188  3052  3081 I Unity   :
7. 09-27 17:17:20.190  3052  3081 I Unity   : NGPermissionCallbackAndroid
8. 09-27 17:17:20.190  3052  3081 I Unity   :
9. 09-27 17:17:20.190  3052  3081 I Unity   : (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/DebugBindings.gen.cpp Line: 51)
10. 09-27 17:17:20.190  3052  3081 I Unity   :
11. 09-27 17:17:24.224  3052  3052 W Unity   : Timeout while trying to pause the Unity Engine.
12. 09-27 17:17:24.276  3052  3081 I Unity   : (Permission) nativeCallback.Result
13. 09-27 17:17:24.276  3052  3081 I Unity   :
14. 09-27 17:17:24.276  3052  3081 I Unity   : (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/DebugBindings.gen.cpp Line: 51)
15. 09-27 17:17:24.276  3052  3081 I Unity   :
16. 09-27 17:17:24.276  3052  3081 I Unity   : 0
17. 09-27 17:17:24.276  3052  3081 I Unity   :
18. 09-27 17:17:24.276  3052  3081 I Unity   : (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/DebugBindings.gen.cpp Line: 51)
19. 09-27 17:17:24.276  3052  3081 I Unity   :
20. 09-27 17:18:25.920  3052  3081 I Unity   : RequestPermission
21. 09-27 17:18:25.920  3052  3081 I Unity   :
22. 09-27 17:18:25.920  3052  3081 I Unity   : (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/DebugBindings.gen.cpp Line: 51)
23. 09-27 17:18:25.920  3052  3081 I Unity   :
24. 09-27 17:18:25.920  3052  3081 I Unity   : NGPermissionCallbackAndroid
25. 09-27 17:18:25.920  3052  3081 I Unity   :
26. 09-27 17:18:25.920  3052  3081 I Unity   : (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/DebugBindings.gen.cpp Line: 51)
27. 09-27 17:18:25.920  3052  3081 I Unity   :
28. 09-27 17:18:25.922  3052  3081 I Unity   : 0
29. 09-27 17:18:25.922  3052  3081 I Unity   :
30. 09-27 17:18:25.922  3052  3081 I Unity   : (Filename: /Users/builduser/buildslave/unity/build/artifacts/generated/common/runtime/DebugBindings.gen.cpp Line: 51)
31. 09-27 17:18:25.922  3052  3081 I Unity   :

Could that timeout be an issue? I did get a 1-2 second pause while trying to open for the first time. The subsequent tries didn't take that long and resulted in not opening straight away.
I'm making a new build now with the propper, "NativeGallery.Permission permission" in your examples. It just takes a while as I use cloud.

Unfortunately, uninstalling the app had no effect.

 

0 means Denied permission. Can you verify that your final AndroidManifest has WRITE_EXTERNAL_STORAGE permission in it (without any maxSdkVersion-like attributes)? Also, when you navigate to Settings for your app, is Storage permission defined there? If you test the plugin on a new project using the example code, does it work properly?

BTW, the timeout shouldn't be the cause of this issue, it happens to me, as well.

 

Thanks for the help, yasirkula.

I added the following lines to the manifest:

Code (CSharp):

1.   <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
2.   <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

and also changed the Android->Other Settings->Configuration->Write Permission from "Internal" to "External (SDCard)".

I now get the permission asked the first time I run the app. If I chose to allow then it doesn't ask again, if I deny then your request permission is displayed normally and the gallery works fine

Really appreciate the help there, but just to close this one, would it be possible to not have the permission request to be displayed when I open the app, but rather only when I try to open the gallery? This used to work before so I'm sure it;s possible, just not sure which option triggers that.

Also, I never use the gallery to write so I'm not sure write permission is necessary, as I only read from it.

 

If your other plugins don't request any permissions at startup, you can surely do that. See "Runtime permissions" section here: https://docs.unity3d.com/Manual/android-manifest.html

For simplicity's sake, NativeGallery requests both permissions simultaneously. Although it is a good idea to ask only the read permission in your case, it is not supported by NativeGallery yet.

 

Interesting, good to know. So maybe I want to manage permissions myself before I try to use any plugin. Apparently unity doesn't have any built in ways to ask for specific permissions at runtime so i'd have to do some research on how do it.

Thanks for the help again!

 

Hi,
I have no problem to use NativeGallery.GetVideoFromGallery(path) on android.
but on IOS, when i pick a video, it automatically compress it after i picked it. How can we avoid that?
Thanks a lot

 

Please see this topic: https://github.com/yasirkula/UnityNativeGallery/issues/21#issuecomment-380412215

TL;DR it doesn't seem possible :/

 

Thanks a lot for this plugin! Would definitely pay for it

One question (iOS):
Is it possible to get a callback or similar when the user cancels the photo pick?

The only feedback from Xcode is:

[discovery] errors encountered while discovering extensions: Error Domain=PlugInKit Code=13 "query cancelled" UserInfo={NSLocalizedDescription=query cancelled}

Thank you!

 

It is supposed to call the MediaPickCallback with null parameter. Is it not the case for you?

 

Ah OK thanks. Do you know if this is at all possible via Unity or am I simply running down a rabbit hole?

I need to provide a gallery of users photos which will allow the user to drag any of them to a edit board on another part of the screen....

 

path == null

does the job.

Thanks!

 

@elpuerco63 Please see this post.

 

@yasirkula

Code (CSharp):

1. NativeGallery.SaveImageToGallery(m_screenTexture, "AlbumName", "Img_{0}.png");

If I execute the code above, should it place an image called "Img_0.png" in AlbumName? At the moment, it places the "Img_0.png" in the Camera folder. Is this the correctly behavior or am I missing something? Does the folder need to exist beforehand?

 

I have a small problem on Android: When my app is started for the first time after installing it, LoadImageAtPath doesn't work, the imagePath is correct, but !File.Exists( imagePath ) returns true. However, after restarting the app it suddenly works with no problem. Selecting images with GetImagesFromGallery works just fine on the first boot and CheckPermission also returns "Granted". Any Idea what could be causing this?

 

Thanks a lot. i added
if (@available(iOS 11.0, *)) {
imagePicker.videoExportPreset = AVAssetExportPresetPassthrough;
}
as you advised. I still have the quick compression process. I dont really know if it compresses though?
I Can show the path of this video. Thanks
Is there a way to avoid the compression window? i know some people might have asked you. but you might have found something since then?
great plug in on Android, it really works great. thanks

 

@shin_unity197 It should place an image called "Image_0.png" in DCIM/AlbumName on Android and in AlbumName album on iOS. These directories don't have to exist beforehand. Honestly, I haven't seen it saving the image inside the Camera directory before, so I am kind of clueless here. On which device did you test it? Does the example code also not work correctly?

@Bavrogar Make sure to call LoadImageAtPath inside the MediaPickCallback of the GetImagesFromGallery function. For example, please see the example code. If you are already doing so, can you please check if the same problem also exists on the GetImageFromGallery function? Did you test it on iOS or Android?

@PhilippeGe Unfortunately not. I don't think Apple added an option to skip the compression part completely, as I couldn't find a working solution on google.

 

@yasirkula I'm on the Google Pixel 2 and it yes I'm using the exact snippet of code shown in the example code and it doesn't work. All my saves are going into the Camera Directory

 

Hi @yasirkula ,

Thanks for the advice before. Now I'm using a dispatcher code to open the gallery selector if in iOS. However, how do you handle when someone returns with pressing 'Cancel' in the image selection? It seems that the iOS runs into an endless loop until you "return" somehow to the scene. Have you met this behavior before?

Thanks,
Bane

 

I use another plugin to let the user save a screenshot into the iOS camera roll.
Now I want to automatically open this particular image with the native gallery app.
Is this possible (with your plugin)?

 

@yasirkula It appears that my problem only occurs when testing the app on an Android emulator. Thought I had already tested it on my Android phone but appearantly not, because it works there with no problem.
However I do call both LoadImagesAtPath and LoadImageAtPath outside of the Callback in some instances, can that lead to issues?
Also whether or not the Load-functions are called within the Callback doesn't make a difference for my original problem (which seems to just be limited to my emulator though, so probably not really an issue).

 

@shin_unity197 I honestly have no idea why this happens with NativeGallery, sorry :/

@OtterBane I didn't test it with dispatcher code myself but normally such an issue shouldn't occur unless your code keeps asking for an image until an image is selected.

@Cascho01 Unfortunately not.

@Bavrogar The recommended way is to use LoadImageInPath inside the callback because otherwise, it doesn't work correctly on iOS. However, I'm not sure why this function doesn't work correctly on your Android emulator even when it is located inside the callback.

 

Hello @yasirkula
Sorry to bother you. i am really struggling on iOS, using a video picked with your plugin and use it as videotexture for sprite or just even play with Videoplayer. I see in your example code that you are using "Handheld.PlayFullScreenMovie" (which is working for me too) but does it mean that a video cannot be used as a texture or with the unity Videoplayer?
thanks... if someone as a sample code that just pick a video and apply to the videoplayer to play in it, in iOS that would be awesome. thanks a lot

 

Please see this code snippet: https://github.com/yasirkula/UnityNativeGallery/issues/27#issuecomment-386583690

 

I am getting a strange issue.
I have two cameras in my scene
camera1 is the display the user sees
camera2 is a display that shows a blank piece of paper and the text that is to be shared/saved as needed

the following two methods are in the same script and attached to camera2:

Code (CSharp):

1. private IEnumerator TakeScreenshotAndSave()
2.     {
3.         //Debug.Log("Coroutine started");
4.         yield return new WaitForEndOfFrame();
5.  
6.         Texture2D texture = new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, false);
7.         texture.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0, false);
8.         texture.Apply();
9.         //Debug.Log("texture made");
10.         Debug.Log("Permission result: " + NativeGallery.SaveImageToGallery(texture, "Dms Lil Helper", "Saved {0}.png"));
11.         //Debug.Log("texture saved");
12.         Destroy(texture);
13.     }
14.  
15.     IEnumerator shareImage()
16.     {
17.         Texture2D texture = new Texture2D(Screen.width, Screen.height, TextureFormat.RGB24, false);
18.         texture.ReadPixels(new Rect(0, 0, Screen.width, Screen.height), 0, 0, false);
19.         texture.Apply();
20.         string filePath = Path.Combine(Application.temporaryCachePath, "shared img.png");
21.         File.WriteAllBytes(filePath, texture.EncodeToPNG());
22.         Destroy(texture);
23.         new NativeShare().AddFile(filePath).SetSubject("Dms Lil Helper share").Share();
24.         yield return null;
25.     }
26.  
27.  

When a player clicks "share image" a boolean is set in this script that displays a message "hey buddy were processing, expect freeze" and then sets another boolean
when the second boolean is detected in OnPostRender() it then triggers the share function
this shares an image of camera2 successfully and all is well
Now when someone clicks the save image button the same process is started but the "TakeScreenshotAndSave" function is called instead this however saves an image of camera1 not camera2
the save button is setup exactly the same as the share button, both using the game object of camera2 both the code for creting the texture2d is identical in both functions but for some reason the nativegallery plugin is saving an image of camera 1.

I am aware your the developer of both plugins being used (dear god thank you for providing these!) is there something native gallery is doing differently that is causing an issue?
and....how do I fix it/can I fix it?



***EDIT*** SOLVED
I am an idiot.
I have been staring at my code for over an hour trying to fix this, then when I posted it I realised that I had different Yeld triggers (I am a hobby developer and learning as I go so yeld is something that only makes half sense to me) changed the save image yeld to the same as it is on the share image and bingo it works!

will leave this here incase someone has the same issue (example code yeld state means it will always save an image of whats on the screen not the camera its attached to, which I guess is most peoples use case)

 

Hi I've tried to change all the settings as you specified on iOS but couldn't get it to work. For Android it works fine already. Is there any information that you need so the troubleshooting is easier?

Edit: I've doubled checked the info and build settings in XCode and it should be like what you specified.

Edit2: Figured out the issue. The API for iOS must be using GetImageFromGallery instead of GetImagesFromGallery. Just a suggestion to maybe add a error log so users know of this issue (Currently no log appears)