photo_gallery_flutter

Photo Gallery Flutter

A Flutter plugin that retrieves images and videos from mobile native gallery.

Installation

First, add photo_gallery_flutter as a dependency in your pubspec.yaml file.

iOS

Add the following keys to your Info.plist file, located in <project root>/ios/Runner/Info.plist:

NSPhotoLibraryUsageDescription - describe why your app needs permission for the photo library. This is called Privacy - Photo Library Usage Description in the visual editor.

<key>NSPhotoLibraryUsageDescription</key>
<string>Example usage description</string>

Android

Add the following permissions to your AndroidManifest.xml, located in <project root>/android/app/src/main/AndroidManifest.xml:

<manifest ...>
    <uses-permission
        android:name="android.permission.READ_EXTERNAL_STORAGE"
        android:maxSdkVersion="32" />
    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES" />
    <uses-permission android:name="android.permission.READ_MEDIA_VIDEO" />
<manifest/>

Usage

• Listing albums in the gallery

final List<Album> imageAlbums = await PhotoGalleryFlutter.listAlbums();
final List<Album> videoAlbums = await PhotoGalleryFlutter.listAlbums(
    mediumType: MediumType.video,
    newest: false,
    hideIfEmpty: false,
);

• Listing media in an album

final MediaPage imagePage = await imageAlbum.listMedia();
final MediaPage videoPage = await imageAlbum.listMedia(
    skip: 5,
    take: 10,
);
final List<Medium> allMedia = [
    ...imagePage.items,
    ...videoPage.items,
];

• Loading more media in a album

if (!imagePage.isLast) {
    final nextImagePage = await imagePage.nextPage();
    // ...
}

• Getting a Medium

final Medium medium = await PhotoGalleryFlutter.getMedium(
  mediumId: "10",
  mediumType: MediumType.image
);

• Getting a file

final File file = await medium.getFile();

final File file = await PhotoGalleryFlutter.getFile(mediumId: mediumId);

• Getting thumbnail data

final List<int> data = await medium.getThumbnail();

final List<int> data = await PhotoGalleryFlutter.getThumbnail(mediumId: mediumId);

You can also specify thumbnail width and height on Android API 29 or higher; You can also specify thumbnail width, height and whether provider high quality or not on iOS:

final List<int> data = await medium.getThumbnail(
    width: 128,
    height: 128,
    highQuality: true,
);

final List<int> data = await PhotoGalleryFlutter.getThumbnail(
    mediumId: mediumId,
    mediumType: MediumType.image,
    width: 128,
    height: 128,
    highQuality: true,
);

• Getting album thumbnail data

final List<int> data = await album.getThumbnail();

final List<int> data = await PhotoGalleryFlutter.getAlbumThumbnail(albumId: albumId);

You can also specify thumbnail width and height on Android API 29 or higher; You can also specify thumbnail width, height and whether provider high quality or not on iOS:

final List<int> data = await album.getThumbnail(
    width: 128,
    height: 128,
    highQuality: true,
);

final List<int> data = await PhotoGalleryFlutter.getAlbumThumbnail(
    albumId: albumId,
    mediumType: MediumType.image,
    newest: false,
    width: 128,
    height: 128,
    highQuality: true,
);

• Displaying medium thumbnail

ThumbnailProvider are available to display thumbnail images (here with the help of dependency transparent_image):

FadeInImage(
    fit: BoxFit.cover,
    placeholder: MemoryImage(kTransparentImage),
    image: ThumbnailProvider(
        mediumId: mediumId,
        mediumType: MediumType.image,
        width: 128,
        height: 128,
        hightQuality: true,
    ),
)

Width and height is only available on Android API 29+ or iOS platform

• Displaying album thumbnail

AlbumThumbnailProvider are available to display album thumbnail images (here with the help of dependency transparent_image):

FadeInImage(
    fit: BoxFit.cover,
    placeholder: MemoryImage(kTransparentImage),
    image: AlbumThumbnailProvider(
        album: album,
        width: 128,
        height: 128,
        hightQuality: true,
    ),
)

Width and height is only available on Android API 29+ or iOS platform. High quality is only available on iOS platform.

• Displaying a full size image

You can use PhotoProvider to display the full size image (here with the help of dependency transparent_image):

FadeInImage(
    fit: BoxFit.cover,
    placeholder: MemoryImage(kTransparentImage),
    image: PhotoProvider(
        mediumId: mediumId,
    ),
)
```# photo_gallery_flutter