Native Gallery for Android & iOS [Open Source]

You could simply have a button like "Save marker to Photos" and then it'd be user's responsibility to press it as many times as he/she wants.

 

Yeah thats what I'll do now, thanks for ur fast responses! I just have to try now that it doenst create multiple image album. It seems like if i copy them by press button, it happens to fast. if i create manually my album before, all images go in the same album

 

You can set a minimum delay between each button press. If button is pressed too quickly, you can simply ignore the click.

Time.realtimeSinceStartup

should be helpful to achieve this.

 

the problem is i dont want the user to click more than 1 time to download the marker :/
thanks for your help!

 

What if they delete the marker from Photos after downloading it? You need to let the button download the marker whenever it is pressed.

 

I cannot get to make work the LoadFromPath on iOS.

I get the path using GetImageFromGallery, the path is from: /var/mobile/Containers/Data/Application/..../Library/Caches/tmp.png

But the Texture2D taken is blank. It works on Unity_Editor and Android.

 

Are there any error messages? May I see your code?

 

Got this log on XCode:

Code (CSharp):

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

This is my code:

Code (CSharp):

1.  
2. NativeGallery.Permission permission = NativeGallery.GetImageFromGallery((path) =>
3.            {
4.                image.gameObject.SetActive(true);
5.                Debug.Log("Image path: " + path);
6.                Texture2D texture = NativeGallery.LoadImageAtPath(path);
7.                if (texture == null)
8.                {
9.                    Debug.Log("Couldn't load texture from " + path);
10.                    return;
11.                }
12.                image.texture = texture;
13.                Destroy(texture);
14.                //    image.overrideSprite = Sprite.Create(texture, new Rect(0.0f, 0.0f, Screen.width, Screen.height), Vector2.zero);
15.            }, "Select a PNG image", "image/*", maxSize);
16. Debug.Log("Permission result: " + permission);

 

That error message is normal. The issue with your code is that you are destroying the loaded texture in your code. You shouldn't do that unless you no longer need the texture. Example code destroys the texture after 5 seconds to release its memory because the object that the texture is assigned to is also destroyed after 5 seconds.

 

Hi, I'm getting a
The Java JAR file “NativeGallery.jar” could not be launched.

No messages in the console, running 2019.1.1. Any ideas..? Thank you!

 

Are you trying to open the .jar file?

 

Hello, I am new to Unity and C #. Tell me how I can upload an image from the Internet and save it in the gallery. (Android). I would be very grateful if you provide me with a sample code. Thank! Forgive me for my bad english

 

To learn how to download the image, please search "unity download file from url"; you'll find plenty of example codes for it. After the image is downloaded, assuming its file path is imagePath, you can call

NativeGallery.SaveImageToGallery(imagePath,"Album Name", System.IO.Path.GetFileName(imagePath));

 

I am... sorry, I haven't used a JAR file or Java script at all. Upon some research, it looks like I need to place the JAR file in ~Assets/Plugins/Android/bin/ . Is this correct? My apologies, I'm still noob in this area.

 

You don't need to touch the JAR file at all. All you need to do is call NativeGallery's functions in your C# scripts. Here's an example code: https://github.com/yasirkula/UnityNativeGallery/#example-code

 

Hello again. Please tell me what am i doing wrong? I still need to save the image from the URL to the gallery of the Android device. Thank!

 

Try replacing the contents of the

else

with this:

NativeGallery.SaveImageToGallery(www.downloadHandler.data,"Album Name", "image.jpg");

 

I actually tried to DM you, as to not fill up the board with novice-level questions, but it got blocked for spam..


Some questions I have are:

• After importing, you can simply call the script functions in the scripts? - or does a script need to be placed in a folder or on to a game object?

For my application, this is currently how I call and assign the texture array, which cycles through on a raw image. What would be the best way to convert this to using the Native Gallery scripting?

• I have a texture array:
  • public Texture[] imageSet;

imageSet = Resources.LoadAll<Texture2D>("Image Set");
print("Loaded Textures Folder");


Would it work to convert it to this?
Texture[] imageSet = NativeGallery.LoadImagesAtPath( );

• Does it need to be gallery/photos? Is it this by default?

I'm sorry if this is all too basic.

 

- Yes you can use NativeGallery immediately after importing. You just have to set "Write Permission" to "External (SDCard)" in Player Settings
- I don't recommend you to use NativeGallery for loading images in your Resources folder. If you use Resources.Load, you'll get a nice compressed Texture, so it won't consume much memory. If you use NativeGallery.LoadImageAtPath, the Texture will be uncompressed and will consume more memory because it is not possible to load image files into compressed Textures at runtime
- If you still want to use NativeGallery, you can put your images in StreamingAssets rather than Resources and load them from there one by one. On iOS, simply using

Texture2D texture = NativeGallery.LoadImageAtPath(System.IO.Path.Combine(Application.streamingAssetsPath, "image file.jpeg"));

should work but on Android, you have to retrieve the image file from that path via WWW, copy its www.bytes to a temporary image file in Application.temporaryCachePath and call

Texture2D texture = NativeGallery.LoadImageAtPath(System.IO.Path.Combine(Application.temporaryCachePath, "image file.jpeg"));

 

Awesome, Thank you! Mainly I need to access the local Android folder -
another issue is that I'm using a Texture[] (and also not a Texture2D[] as far as I know..)
Can the scripting be easily adapted for arrays of textures?

I try using something like this below, but get many errors and am not sure where to begin, which variables to name or delete here. The errors seem to all be syntax.

imageSet = NativeGallery.GetImagesFromGallery(MediaPickMultipleCallback callback, string title = "", string mime = "image/*", int maxSize = -1);

 

You can store Texture2Ds inside a Texture array. The code below will work on only Android 18 or later (iOS not supported).

Code (CSharp):

1. NativeGallery.GetImagesFromGallery( ( paths ) =>
2. {
3.     if( paths != null )
4.     {
5.         imageSet = new Texture[paths.Length];
6.         for( int i = 0; i < paths.Length; i++ )
7.             imageSet[i] = NativeGallery.LoadImageAtPath( paths[i] );
8.     }
9. } );

 

Yes, it worked! Thank you so much!!

Ideally, I'd want it to start out automatically running from this specific folder, instead of launching the selection menu in the Android os. Likely, this is doable? However, it is totally fantastic to be able to do selections or Select All in any folder.

 

It is not possible with NativeGallery, sorry. I'd like to remind you that GetImagesFromGallery works only on Android 18 or later. Glad it works for you!

 

Hi @yasirkula, I am trying to use getsavepath() but it tells me i can't do it because of the protection level.
Texture2D tex = NativeGallery.LoadImageAtPath(NativeGallery.GetSavePath("Liverys",fileName));

Any idea? Thx for this great plugin

 

Please see this post about GetSavePath: https://github.com/yasirkula/UnityNativeGallery/issues/29#issuecomment-389127390

Why don't you pass the path of the original file to LoadImageAtPath? If you are using NativeGallery.SaveImageToGallery(imagePath, etc.), then you can simply use imagePath as the path.

 

I already tried someting simelar...hm.. am I doing something wrong with my path?

saving:
string fileName = "Livery" + "_" + CarIndex + ".png";
NativeGallery.SaveImageToGallery(savedTexture, "Livery", fileName);

loading:
string fileName = "Livery" + "_" + CarIndex + ".png";
Texture2D tex = NativeGallery.LoadImageAtPath("Livery"+fileName, 1024, false, false, false);

 

I see, so you are trying to load the saved image in the next session. If it is not necessary to save the image to the gallery, you should simply save it to Application.persistentDataPath. Otherwise, you should keep a copy of the image in Application.persistentDataPath, save its path (to e.g. PlayerPrefs) and load the image from there in the next session.

 

06-12 20:54:24.726: E/Unity(25866): FileNotFoundException: File not found at /storage/emulated/0/Android/data/com.UnityGame.ProjectARG/files/Livery_0.png

the file is there and the path is correct. but the debugger says not... o_o

 

Does File.Exists(filePath) return true?

 

this is how I now try to load the texture:

Code (CSharp):

1.             Texture2D tex = NativeGallery.LoadImageAtPath(Application.persistentDataPath +"/"+ fileName, 1024, false, false, false);

and

Code (CSharp):

1.             Debug.Log(File.Exists(Application.persistentDataPath + "/" + fileName));

returns false.

there you can see the filepath on my phone.
https://imgur.com/a/ahcG7Oo

 

Does

Debug.Log(Application.persistentDataPath + "/" + fileName)

return the same path? If so, are you attempting to save the image to the Gallery after it is downloaded from the internet? You may have to wait for the download operation to finish first.

 

Yes it does, already tested that. No I'm not trying to access a downloaded file.

 

I don't know why File.Exists would return false for that file but NativeGallery is failing because of it :/

 

when i do
string fileName = "Livery" + "_" + CarIndex + ".png"; //<-----
NativeGallery.SaveImageToGallery(savedTexture, Application.persistentDataPath, fileName);

it says in the debug log:

06-16 22:05:16.947: I/Unity(26341): Saving to gallery: /storage/emulated/0//storage/emulated/0/Android/data/com.UnityGame.ProjectARG/files/Livery_0.png

why two times /storage/emulated/0/ ? or is this normal?

 

You should use a single-sentence album name instead of Application.persistentDataPath. For example, try using "My Album".

 

I could fix it. I added "/storage/emulated/0/" to the loading path.

Texture2D tex = NativeGallery.LoadImageAtPath("/storage/emulated/0/Livery/" + fileName, 1024, false, false, false);

Thanks for your help

 

This is great, thank you yasirkula!

Do you know if it's possible to change the layout of the image gallery on Android to fullscreen? Or go directly to Images or Gallery .

Thanks!

 

I don't have any control over the visual appearance of the plugin but you can open Gallery directly by modifying the Android source code. You'd have to change this line as

startActivityForResult( intent, MEDIA_REQUEST_CODE );

, rebuild the library and replace the jar of NativeGallery. See this post for more info about the process: https://github.com/yasirkula/UnityNativeGallery/issues/65#issuecomment-502092903

 

Thank you for the quick reply. This is exactly what i want / need. I changed the line 87 in the JAR Source/NativeGalleryMediaPickerFragment.java to startActivityForResult( intent, MEDIA_REQUEST_CODE );
, rebuild the library and replaced the jar-file in the unity project. But now i get an error-message when i try to open the Gallery.

Android.JavaException: java.lang.ClassNotFoundException: com.yasirkula.unity.NativeGalleryPermissionReceiver

So now i don't know if i did the library rebuild right or there is something else wrong.
Would it possible for you to make the rebuild for me or test the changes on your side?

thx...

 

You should open your jar with Winrar and verify that it contains the com/yasirkula/unity/NativeGalleryPermissionReceiver.java file.

 

my jar container contains...

• NativeGallery.class
  
• NativeGalleryMediaPickerFragment.class
  
• NativeGalleryMediaReceiver.class
  
• NativeGalleryPermissionFragment.class
  
• NativeGalleryPermissionReceiver.class

 

Looks correct. I'm not sure why your jar doesn't work, though. Please compare its contents with NativeGallery's default jar file and see if their contents match.

 

Hi
First thank you for this plugin.
I want to know how do you provide the path to Unity?
Do you copy the image from the original to internal app storage in Android?
How much is the delay after you pick photo to unity?

 

SaveImageToGallery: yes, the image is copied to an internal path. This path is determined via NativeGallery.GetSavePath on Android. On iOS, Photos app copies the file to an internal path that is not exposed to us.

GetImageFromGallery: if the image's original path in Gallery can be determined, that path is returned on Android. Otherwise the image is copied to a temporary location and that path is returned. On iOS, the image is always copied to a temporary location.

The delay should be a couple of seconds.

 

In another plugin, I was experiencing a delay around 2 seconds. It was always copying the image to a temporary location when picking from gallery. It is not acceptable for user experience so I was seeking for another solution.
I used GPU to pass texture to Unity. The delay dropped to 20-30 ms
Unfortunately I have no experience in IOS so I developed the plugin only for Android.
If you think that you or any person from community can implement GPU transfer in IOS please let me know so I can adapt the solution for Android in your plugin and make a pull request .
Thanks

 

Hi Yasirkula,

this is a great plugin. Works perfectly on the first try, no problems. I am very happy. I use it just to pick/read pictures from IOS and Android Smartphones and use the texture in Unity. All works great, just one little inconvenience:

On IOS/IPhone, the picked file is stored in the Apps Sandbox. After I have used it, I do never need it again, so I want to delete it from my apps sandbox. Now that does not work, and the local storage size of my app gets bigger and bigger with every picked picture. Here my simple C# code I use to delete the file directly after getting the texture:

//delete local file on iPhone
if (Application.platform == RuntimePlatform.IPhonePlayer)
{
File.Delete("/private" + Application.persistentDataPath + "/temp.png");

I had the impression, it sometimes works and sometimes not. Unfortunately I have no FileExplorer on the iPhone to see the files in my App sandbox and their names. I also tried to use the path returned from NativeGallery. It works well to get the image but not with File.Delete().

NativeGallery.LoadImageAtPath(path, maxSize);


Can you help me with the correct App sandbox path of the picture files copied from the iPhone Fotos into the Apps sandbox? That would help a lot.

Thank you very much.

 

Does

File.Exists(filePath)

return true? Also, you can log your files' path to console as an alternative to using a file explorer. To do so, use

new System.IO.DirectoryInfo(directoryPath).GetFiles("*",System.IO.SearchOption.AllDirectories)

to get all files in directoryPath (including files inside subdirectories) and Debug.Log their

FullName

property.

 

Thanks a lot, will check it out.

 

Confused:
A) nativeGallery returns image path like: /var/…./Library/Cashes/tmp.png
B) I load that path's image via WWW (adding file://), works great
C) I delete exactly that path. Seems to work, no errors to catch

But D) iPhone Storage shows increased storage volumes for Documents and Data of my App with every new image
and E) using DirectoryInfo.GetFiles for private/Application.persistentDataPath gives back a path like /private/var/…/Documents/… and shows 2 other files but never increases the quantity of files

Why is the overal app storage size increasing with each file??
Does nativeGallery store a picked file twice?
Once as /var/…./Library/Cashes/tmp.png and
again as somwhereelsepath/whatevername.png???

 

The image is supposed to be saved to Application.temporaryCachePath (with name tmp.png) only. I don't know why the overall app storage size is increasing. You can check out the native pickMedia and imagePickerController functions to see if I'm missing something.