FluidGridAdapter

A listview adapter that arranges images in a fluid grid. Callbacks for loading the image into the view and for when a single cell is tapped. Allows for custom cell padding, row height, and cell background.

| Display a grid of photos | Adjust padding and row height | Set the cell background color | | --------------------------- | -------------------------------- | ------------------------------------ | | | | |

Example Usage

Create a FluidGridAdapter by passing in an array of objects that have:

1. an image url/tag/identifier
2. an aspect ratio OR width & height

Here's using an example using a library such as Picasso

<pre> //////////////////////////////////////////////////////////////////////////////// //Query the MediaStore for device photos and build an array of ImageData objects //////////////////////////////////////////////////////////////////////////////// String[] projection = { MediaStore.Images.Thumbnails._ID, MediaStore.Images.Thumbnails.DATA, MediaStore.Images.Thumbnails.HEIGHT, MediaStore.Images.Thumbnails.WIDTH }; Cursor cursor = getContentResolver().query(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI, projection, null, null, null); ArrayList<ImageData> imageDatas = new ArrayList<ImageData>(); int photoHeightIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.HEIGHT); int photoWidthIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.WIDTH); int fileLocationIndex = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); while(cursor.moveToNext()) { int photoHeight = cursor.getInt(photoHeightIndex); int photoWidth = cursor.getInt(photoWidthIndex); String fileLocation = cursor.getString(fileLocationIndex); if(photoWidth > 0 && photoHeight > 0) { ImageData imageData = new ImageData(fileLocation, photoWidth, photoHeight); imageDatas.add(imageData); } } ///////////////////////////////////////////////////////// //Pass the array of ImageData objects into the adapter ///////////////////////////////////////////////////////// FluidGridAdapter fluidGridAdapter = new FluidGridAdapter(this, imageDatas){ @Override protected void onSingleCellTapped(ImageData imageData) { Log.d(TAG,"Single cell tapped"); } @Override protected void loadImageIntoView(String photoUrl, int cellWidth, int cellHeight, ImageView imageHolder) { Picasso.with(context).load(photoUrl).resize(cellWidth, cellHeight).into(imageHolder); } }; listview.setAdapter(fluidGridAdapter); </pre>

Compatibility

Compatible and tested with Android 4.0 and above.