get All Photos From External Storage MediaStore - Android android.provider

Android examples for android.provider:MediaStore

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Description

get All Photos From External Storage MediaStore

Demo Code


import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.provider.MediaStore;
import android.util.Log;
import java.util.ArrayList;

public class Main{
    public static ArrayList<MediaStorePhoto> getAllPhotosFromExternalStorage(
            ContentResolver mContentResolver) {

        MediaStorePhoto photo;/*from  ww  w.j  a  v a 2  s .  c o  m*/
        ArrayList<MediaStorePhoto> photoList = new ArrayList<>();

        // which image properties are we querying
        String[] projection = new String[] {
                MediaStore.Images.Media.BUCKET_ID,
                MediaStore.Images.Media.BUCKET_DISPLAY_NAME,
                MediaStore.Images.Media._ID,
                MediaStore.Images.Media.DATE_TAKEN,
                MediaStore.Images.Media.SIZE,
                MediaStore.Images.Media.DISPLAY_NAME,
                MediaStore.Images.Media.DATA };

        // content:// style URI for the "primary" external storage volume
        Uri images = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;

        // Make the query.
        Cursor cur = mContentResolver.query(images, projection, // Which columns to return
                null, // Which rows to return (all rows)
                null, // Selection arguments (none)
                null // Ordering
                );

        Log.i("ListingImages", " query count=" + cur.getCount());

        if (cur.moveToFirst()) {
            String bucketId;
            long id;
            long size;
            String bucket;
            String date;
            String name;
            String dataUri;

            int bucketIdColumn = cur
                    .getColumnIndex(MediaStore.Images.Media.BUCKET_ID);

            int idColumn = cur.getColumnIndex(MediaStore.Images.Media._ID);

            int bucketColumn = cur
                    .getColumnIndex(MediaStore.Images.Media.BUCKET_DISPLAY_NAME);

            int dateColumn = cur
                    .getColumnIndex(MediaStore.Images.Media.DATE_TAKEN);

            int sizeColumn = cur
                    .getColumnIndex(MediaStore.Images.Media.SIZE);

            int nameColumn = cur
                    .getColumnIndex(MediaStore.Images.Media.DISPLAY_NAME);

            int dataColumn = cur
                    .getColumnIndex(MediaStore.Images.Media.DATA);
            do {
                // Get the field values
                bucketId = cur.getString(bucketIdColumn);
                bucket = cur.getString(bucketColumn);
                date = cur.getString(dateColumn);
                size = cur.getLong(sizeColumn);
                id = cur.getLong(idColumn);
                name = cur.getString(nameColumn);
                dataUri = cur.getString(dataColumn);

                // Store photo in Photo object
                photo = new MediaStorePhoto(String.valueOf(id), name,
                        bucket, date, String.valueOf(size), "null",
                        dataUri, bucketId);

                // Add photo to photo list
                photoList.add(photo);
            } while (cur.moveToNext());

        }
        cur.close();
        return photoList;
    }
}

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