Native Gallery for Android & iOS [Open Source]

Did you change the value of Write Permission in Player Settings, though?

 

But the image data is in the phone storage. The simple code example that you give in the firsts comments about open the gallery should work well in any case? if it dont, can you give me some insight about what to do? cause i gessed it was to be easy to just open an image from the gallery but i'm stuked on it XD

 

The plugin will only work with the External (SDCard) permission. Don't let the word SDCard confuse you, External allows the plugin to access the files in Gallery.

 

Screenshot not at all saving while taking build to android phones but it works fine in editor @yasirkula

 

Try using logcat and/or this asset to see if there are any error messages

 

hi, thanks for this plugin
I want to know how can I open some specific folder with Android Native gallery? i dont want use image as texture i just want my app show all of images in the folder

 

It is not possible, sorry.

 

Thank you for the useful plugin!

First of all, sorry for may be stupid question.
Could you please say how is it possible, for picture that is picked from the gallery, to appear not in the middle of the screen on a random quad, but on a specific place on the screen on Image or rawImage.
Thank you very much in advance

 

Thanks! In the example code, the line

Texture2D texture = NativeGallery.LoadImageAtPath( path, maxSize );

creates a texture from the picked image. If this texture is not null, you can assign it to a RawImage's texture property or to the mainTexture property of an object's Renderer's material.

 

Could you please help with the code?

 

Where do you try to assign the texture to?

 

Not to the random quad that appears in the middle of the screen, but to already existing image element(UI) that was created by me.

Thank you very much in advance! I am trying to solve this problem already for a very long time.

 

Just create a public

RawImage rawImage;

variable and call

rawImage.texture = texture;

in your code:

Code (CSharp):

1. public RawImage image;
2.  
3. private void PickImage( int maxSize )
4. {
5.     NativeGallery.GetImageFromGallery( ( path ) =>
6.     {
7.         Debug.Log( "Image path: " + path );
8.         if( path != null )
9.         {
10.             // Create Texture from selected image
11.             Texture2D texture = NativeGallery.LoadImageAtPath( path, maxSize );
12.             if( texture == null )
13.             {
14.                 Debug.Log( "Couldn't load texture from " + path );
15.                 return;
16.             }
17.            
18.             // Optional: free up the memory consumed by the current Texture
19.             // assigned to the RawImage
20.             Destroy( image.texture );
21.  
22.             // Assign the texture to the RawImage
23.             image.texture = texture;
24.         }
25.     }, "Select an image", "image/*", maxSize );
26. }

 

Should I also change something in the RawImages' Inspector?

 

Not at all, you just need to position its RectTransform as you wish.

 

Hey! Awesome plugin, just what I was looking for.

I just wanted to ask one question. Is it possible to call PickImage buy pressing the button(not the 2/3 of the screen)? What should I do for that?

Thank you!

 

Of course, you can make the PickImage function public and add it to the button's On Click event.

 

hey! great plugin, but when i use it to get a picture from gallery it's doesn't work. i have checked and pickedImage is null.
Here's the script:

Code (CSharp):

1.  public Texture2D pickedImage;
2.     public GameObject[] images;
3.  
4.     // Start is called before the first frame update
5.     void Start()
6.     {
7.         PickImageFromGallery(1024);
8.         for (int i = 0; i < 4; i++) {
9.             images[i].GetComponent<Image>().material.mainTexture = pickedImage;
10.         }
11.     }
12.  
13.     public void PickImageFromGallery(int maxSize)
14.     {
15.         NativeGallery.GetImageFromGallery((path) =>
16.         {
17.             if (path != null)
18.             {
19.                 // Create Texture from selected image
20.                 pickedImage = NativeGallery.LoadImageAtPath(path, maxSize);
21.             }
22.         }, maxSize: maxSize);
23.     }

 

and i am using nox app player with android 5

 

NativeGallery.GetImageFromGallery is an asynchronous function, you need to move the for-loop inside the

if(path!=null)

condition.

 

Hi again. I am trying to do some processing on an image I have selected from the native gallery.

1) When I try to use the openCV function Mat img = Unity.TextureToMat(loadedTextureFromGallery), I receive a notice that the texture is not readable, and that line causes a crash.

2) When I try to read the image from the temporary path, "path", using Cv2.ImRead(path), it does seem read the image, but the image file seems to be empty/no data. Then when I try to do more processing on it, the script crashes:

Mat img1 = Cv2.ImRead(path); (log output)--> Mat [ 0*0*CV_8UC1, IsContinuous=False, IsSubmatrix=False, Ptr=0xffffffff80345300, Data=0x0 ]
...
Mat imgGray = new Mat();
Cv2.CvtColor(img1, imgGray, ColorConversionCodes.BGR2GRAY); --> (log output: OpenCV Error: Assertion failed (scn == 3 || scn == 4) in void cv::cvtColor(cv::InputArray, cv::OutputArray, int, int) ---> crash)

My question is, what is the best way to use the image selected from the gallery, and work with it for processing?

Code (CSharp):

1. public class TryingOpenCV : MonoBehaviour
2.     {
3.         public RawImage display;
4.  
5.         public void ProcessImageClick()
6.         {
7.             LoadAndProcessGalleryImage(512);
8.         }
9.  
10.         public void LoadAndProcessGalleryImage(int maxSize)
11.         {
12.             NativeGallery.Permission permission = NativeGallery.GetImageFromGallery((path) =>
13.             {
14.                 Debug.Log("Image path: " + path);
15.                 if (path != null)
16.                 {
17.                     // Create Texture from selected image
18.                     Texture2D unproc2D_Texture = NativeGallery.LoadImageAtPath(path, maxSize);
19.  
20.                     if (unproc2D_Texture == null)
21.                     {
22.                         Debug.Log("Couldn't load texture from " + path);
23.                         return;
24.                     }
25.  
26.                     display.texture = unproc2D_Texture; //display the texture on the Raw Image in the scene
27.  
28.                     Texture2D contourTex = new Texture2D(unproc2D_Texture.width, unproc2D_Texture.height, TextureFormat.RGB24, false);
29.  
30.                     Debug.Log("TextureType: " + unproc2D_Texture);
31.                     Debug.Log("Texture Is Readable?: " + unproc2D_Texture.isReadable);
32.  
33.                  //   Mat img = Unity.TextureToMat(unproc2D_Texture); -->causes crash because the texture is not readable
34.  
35.                     //Convert image to grayscale
36.  
37.                     Mat img1 = Cv2.ImRead(path);
38.                     Debug.Log("after imRead, mat type " + img1);
39.  
40.                     //Convert image to grayscale
41.  
42.                     Mat imgGray = new Mat();
43.  
44.                     Cv2.CvtColor(img1, imgGray, ColorConversionCodes.BGR2GRAY); //causes crash because img1 is empty?
45.                 }
46.             }, "Select a PNG image", "image/png", maxSize); //allow selection of the image from gallery
47.  
48.             Debug.Log("Permission result: " + permission);
49.         }
50.     }

 

1) Try using

NativeGallery.LoadImageAtPath(path, maxSize, false);

2) I don't know why this happens, sorry :/

 

@yasirkula you're a hero! Your solution to 1) solved everything I needed to to processing of the texture. I should have seen the markTextureNonReadable bool option in LoadImageAtPath. Thanks for covering all the details with this tool.

 

Hi @yasirkula, your plugin seems exactly like what I need, and after reading through this thread I can see you've been on top of support! I'm working on an iOS app, and am trying to move a generated video file from a subfolder within persistentdatapath to the gallery.

After getting your plugin off the Asset store, and using the 'SaveVideoToGallery' method, I get an 'UnauthorizedAccessException' in Xcode saying that access to the existing file path is denied.

I have confirmed I have both read and write access to the device, as well as read/write access to photos. A permissions check with 'CheckPermissions()' returns 'Granted'. I also confirmed both the file and the directory exist, and am using Path.Combine to create the file path from the persistent data path and the file name, so it should be consistent.

The test device I am using has iOS 12. I tried testing while not connected to my build machine, but didn't get any difference in results. I'm at a bit of a loss as to what I should try next, and what the issue could be. Should I use the version from your public repo instead of the Asset Store version instead?

Any ideas would be appreciated. Thanks!

 

Both versions are identical at the moment, so using the Asset Store version is fine.

Does the example code on GitHub work for saving screenshots to Photos? How exactly are you calling SaveVideoToGallery? Can you add Debug.Log's to that function (and the functions it calls) to pinpoint the problematic line (or maybe using a Development build would automatically give that information)?

 

Code (CSharp):

1.         void MoveVideoToGallery()
2.         {
3.             NativeGallery.Permission hasPermission = NativeGallery.CheckPermission();
4.             if (hasPermission == NativeGallery.Permission.Granted)
5.             {
6.                 Debug.Log("Permission granted");
7.                 //folderLocation is Application.persistentDataPath + "/videos/"
8.                 if (Directory.Exists(folderLocation))
9.                 {
10.                     //save location is Application.persistentDataPath + "/videos/" + "testvideo.mp4"
11.                     string filename = "testvideo.mp4";
12.                     if (File.Exists(saveLocation))
13.                     {
14.                         NativeGallery.Permission moveToGallery = NativeGallery.SaveVideoToGallery(saveLocation, "Videos", filename);
15.                         //^^ this is where the access denied error is thrown, so the below debug never gets called
16.                         Debug.Log("Tried to move to gallery, Permission returned: " + moveToGallery.ToString());
17.                     }
18.                     else
19.                     {
20.                         Debug.Log("File not found");
21.                     }
22.                 }
23.                 else
24.                 {
25.                     Debug.Log("Directory not found");
26.                 }
27.             }
28.             else
29.             {
30.                 Debug.Log("Permission not granted");
31.             }
32.         }

Thanks for the quick response! Above is my stripped down code I've been trying to debug with. I gets to the SaveVideoToGallery call and that is when I get the access error. I will try testing the screenshot saving example and report back.

 

The screenshot saving works flawlessly, right out the gate. Makes me think that this may not be an issue related to the use of the plugin. I'm going to look into if the video file I have generated is the problem somehow, perhaps with specific file settings. Thanks for the help though, confirming that the screenshots work was a good call. Paring down what the issue could be is helpful regardless!

 

Hi, thank you very much for your info. I swiched from Unity 2018.3.13 to 2018.3.1f1 and it works. You save my time.
@yasirkula : Still great asset, i've been using it for almost 2 years i forgot Lol. Please add support for latest unity (for callback issue). Thank you

EDIT: Sorry, it was my fault! It works on latest Unity Unity 2018.3.14 26 Apr, 2019. Just update this asset and clean install unity. AWESOME!

 

@apev I'm guessing it is related to this line: https://github.com/yasirkula/UnityN...b/Plugins/NativeGallery/NativeGallery.cs#L331

I haven't encountered UnauthorizedAccessException on this line before, it is simply creating a temporary copy of the file and then getting rid of it once it is saved to Photos.

Are you sure that the video is not currently being processed while you are calling SaveVideoToGallery (some plugins may save the video asynchronously)? Can you put Debug.Log's around the line I mentioned and see what

File.Exists(existingMediaPath)

and

File.Exists(path)

return?

 

Hi @yasirkula, Thank you very much for your plugin. Is there A way to use it to retrieve other files (Like a gltf 3d model) Im currently using your plugin to retrieve image path and i'td be cool to use the same plugin to get other files.

 

It is not possible. But you can give the following plugin a try (it should work on Android, at least): https://forum.unity.com/threads/simple-file-browser-open-source.441908/

 

Thanks! but Im needing something seamless for the user, and for ios & android. Just like whatsapp does

 

Unfortunately I don't have any solutions for this :/

 

Thanks for the good material. And please understand that it is awkward to use a translator. I have a question Do you have a way to get pictures directly from the camera to the album like the attached image?

And when you select an album, can you make the gallery application selection window open only once?

 

You can use NativeCamera to take pictures using the camera and then save these images to the Gallery via NativeGallery.

In your second question, do you mean removing the popup that prompts the user to select an app to pick the image with? If so, I'm afraid you can't get rid of that popup, at least not without making changes to the Android JAR source code.

 

Thank you. Your answer was helpful. One more thing I have to ask, what parts need to be fixed before the album comes up on the camera. My album does not appear on my screen at this time.

 

If this screenshot is taken from NativeCamera, then why are you looking for a Gallery icon there? Camera's purpose is to take a photo. Are you looking for a solution where user can pick a photo from either the Gallery or the camera?

 

in xcode of IOS have this error :

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


and I use this example code

Code (CSharp):

1.  public void PickImage(int maxSize)
2.     {
3.         NativeGallery.Permission permission = NativeGallery.GetImageFromGallery((path) =>
4.         {
5.             Debug.Log("<color=yellow>Image path:</color> " + path);
6.             if (path != null)
7.             {
8.                 Debug.Log("ingreso " + "------>" + path);
9.                 // Create Texture from selected image
10.                 Texture2D texture = NativeGallery.LoadImageAtPath(path, maxSize);
11.  
12.                 if (texture == null)
13.                 {
14.                     Debug.Log("Couldn't load texture from " + path);
15.                     return;
16.                 }
17.  
18.                 // Assign texture to a temporary quad and destroy it after 5 seconds
19.                 GameObject quad = GameObject.CreatePrimitive(PrimitiveType.Quad);
20.                 quad.transform.position = Camera.main.transform.position + Camera.main.transform.forward * 2.5f;
21.                 quad.transform.forward = Camera.main.transform.forward;
22.                 quad.transform.localScale = new Vector3(1f, texture.height / (float)texture.width, 1f);
23.                 quad.AddComponent<MeshCollider>();
24.                 Material material = image.GetComponent<Image>().material;
25.  
26.                 if (!material.shader.isSupported) // happens when Standard shader is not included in the build
27.                     material.shader = Shader.Find("Legacy Shaders/Diffuse");
28.  
29.                 material.mainTexture = texture;
30.  
31.                 Destroy(quad, 5f);
32.  
33.                 // If a procedural texture is not destroyed manually,
34.                 // it will only be freed after a scene change
35.                 Destroy(texture, 5f);
36.             }
37.         }, "Select a PNG image", "image/png", maxSize);
38.  
39.         Debug.Log("Permission result: " + permission);
40.     }

 

Does the image picker UI not appear at all?

 

Yes the UI of iOS , but do not load the image in unity 3d

 

Maybe it is an SRP issue. Try putting a cube inside your scene so that the shader of the default material also gets distributed with the game.

 

ok.... but, no load the texture of the imagen of galley selected

 

Even after adding a cube to the scene? How about testing on a new project using legacy render pipeline (i.e. not using HDRP or LWRP); does it work then?

 

Hello, first of all, awesome plugin, thanks.

Second, one question: Is it possible to list both videos and images? Right now you have GetImageFromGallery and GetVideoFromGallery, is it possible to have a GetImageOrVideoFromGallery?

 

Unfortunately not, sorry.

 

Hey, I'm trying to save a video into the iOS Gallery, but it is not being saved, it creates the folder but there is nothing in it. I know the file is on the folder where I'm thinking because it is being played by the same app from the same path. Has anyone else had the same issue? It is working perfectly on Android though

 

Does saving an image work, e.g. when using the example code?

 

First of all i have to thank you for your awesome work, it already helped me so much. Thanks!


But i have a question for iOS .. is it possible that it doesnt save the images all over again ? I made a button to save pictures to gallery but how can i make sure that these pictures aren't already in this gallery ? Is there a way to do this?

 

It is not possible :/

 

oh my gosh... still a nice plugin. but i have the problem that the apple review team want me to make my image markers (augmented app) accessable without download.. i thought i could solve it like this but now i have no clue again ^^