React Native Photo Browser

A full screen image gallery with captions, selections and grid view support for react-native. Layout and API design are inspired by great MWPhotoBrowser library.

The component has both iOS and Android support.

Installation

npm install react-native-photo-browser --save

or npm install react-native-photo-browser@https://github.com/ksti/react-native-photo-browser.git --save

Properties

Prop	Type	Description	Default
mediaList	Array<Media>	List of media objects to display.	[]
initialIndex	Number	Sets the visible photo initially.	0
alwaysShowControls	Boolean	Allows to control whether the bars and controls are always visible or whether they fade away to show the photo full.	false
displayActionButton	Boolean	Show action button to allow sharing, copying, etc.	false
displayNavArrows	Boolean	Whether to display left and right nav arrows on bottom toolbar.	false
enableGrid	Boolean	Whether to allow the viewing of all the photo thumbnails on a grid.	true
startOnGrid	Boolean	Whether to start on the grid of thumbnails instead of the first photo.	false
displaySelectionButtons	Boolean	Whether selection buttons are shown on each image.	false
useCircleProgressiOS	Boolean	Displays Progress.Circle instead of default Progress.Bar for full screen photos. Check Progress section for more info.	false
onSelectionChanged	Function	Called when a media item is selected or unselected.	(media, index, isSelected) => {}
onActionButton	Function	Called when action button is pressed for a photo. Your application should handle sharing process, please see Sharing section for more information. If you don't provide this method, action button tap event will simply be ignored.	(media, index) => {}
onBack	Function	Called when back button is tapped.	() => {}
itemPerRow	Number	Sets images amount in grid row.	3

Media Object

const media = {
  thumb: '', // thumbnail version of the photo to be displayed in grid view. actual photo is used if thumb is not provided
  photo: '', // a remote photo or local media url
  caption: '', // photo caption to be displayed
  selected: true, // set the photo selected initially(default is false)
};

Usage

_onTopRight = (currentMedia, currentIndex, gallery) => {
    console.log('currentMedia:' + currentMedia + 'currentIndex:' + currentIndex);
    gallery && gallery.deleteImageRef(currentIndex);
    let initialIndex = Math.max(0, currentIndex - 1);
    let images = this.state.images;
    if (images.length > 1) {
      images.splice(currentIndex, 1); // 删掉选中的照片
      // update state
      this.setState({
        imageDataSource: this.state.imageDataSource.cloneWithRows(images),
        images: images,
        configPhotoBrowser: {
          ...this.state.configPhotoBrowser,
          initialIndex: initialIndex,
          media: images.slice(0, images.length - 1),
        },
      })
    } else {
      this.setState({
        imageDataSource: this.state.imageDataSource.cloneWithRows(images),
        images: images,
        configPhotoBrowser: {
          ...this.state.configPhotoBrowser,
          initialIndex: initialIndex,
          media: images.slice(0, images.length - 1),
        },
      })
    }
    
  }

  _renderModalPhotoBrowser = () => {
    const {
      media,
      initialIndex,
      displayNavArrows,
      displayActionButton,
      displaySelectionButtons,
      startOnGrid,
      enableGrid,
    } = this.state.configPhotoBrowser;

    return (
      <Modal
        animationType={"none"}
        transparent={true}
        visible={this.state.showPhotoBrowser}>
        <View
          style={{position: 'absolute', top: 0, left: 0, right: 0, bottom: 0}}>
          <PhotoBrowser
            onBack={() => this.setState({showPhotoBrowser: false})}
            mediaList={media}
            initialIndex={initialIndex}
            displayNavArrows={displayNavArrows}
            displaySelectionButtons={displaySelectionButtons}
            displayActionButton={displayActionButton}
            startOnGrid={startOnGrid}
            enableGrid={enableGrid}
            useCircleProgress
            onSelectionChanged={this._onSelectionChanged}
            onActionButton={this._onActionButton}
            onTopRight={this._onTopRight}
            topRightView={this._renderTopRightView()}
            topRightStyle={{overflow: 'hidden'}}
            useGallery={true}
          />
        </View>
      </Modal>
    );
  }

Progress Component

Android

Built-in ProgressBarAndroid component is used for Android. Any additional configuration is not needed.

iOS

react-native-progress component is used as progress indicator. The default progress component is Progress.Bar. You can also use Progress.Circle component by simply using useCircleProgress prop, and adding ReactART library to your Xcode project. For more information please check out react-native-progress repo and React Native documentation.

Sharing

I tried delivering sharing photo feature but it was complicated to provide for iOS and android out of the box. I now believe it's a better idea to separate sharing logic into another module. Please check out Example project to see a basic ActionSheetIOS implementation for iOS. You may also use available sharing libraries such as react-native-activity-view and react-native-share.

Examples

See PhotoBrowserExample.js file.

Follow those steps to run the example:

1. Clone the repo git clone https://github.com/halilb/react-native-photo-browser && cd react-native-photo-browser/Example
2. Install dependencies npm install
3. Follow official instructions to run the example project in a simulator or device.

Roadmap

• Android support
• Improve performance for bigger collections
• Video support
• Photo zoom
• Zooming photos to fill the screen

Licence

MIT