Android Open Source - FluidGridAdapter Device Photos Sample Activity

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License

The source code is released under:

Apache License

Java Source Code

/*
 * Copyright 2014 Cluster Labs, Inc.//ww  w . ja  v  a2 s .  c  om
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.getcluster.fluidgridsample;

import java.io.File;
import java.util.ArrayList;

import com.getcluster.adapter.FluidGridAdapter;
import com.getcluster.models.ImageData;
import com.squareup.picasso.Picasso;

import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.MediaStore;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.Toast;

public class DevicePhotosSampleActivity extends Activity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    setupFluidGrid();
  }

  private void setupFluidGrid() {
    ArrayList<ImageData> imageDatas = loadDevicePhotos();
    FluidGridAdapter fluidGridAdapter = new FluidGridAdapter(this, imageDatas) {

      @Override
      protected void onSingleCellTapped(ImageData imageData) {
        Toast.makeText(DevicePhotosSampleActivity.this, "You tapped a photo! (" + imageData.getImageUrl() + ")", Toast.LENGTH_SHORT).show();
      }

      @Override
      protected void loadImageIntoView(String photoUrl, int cellWidth, int cellHeight, ImageView imageHolder) {
        Picasso.with(DevicePhotosSampleActivity.this).load(new File(photoUrl)).resize(cellWidth, cellHeight).into(imageHolder);
      }

    };
    ListView listview = (ListView)findViewById(R.id.fluid_list);
    listview.setAdapter(fluidGridAdapter);
  }

  protected ArrayList<ImageData> loadDevicePhotos() {
    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);
      }
    }
    cursor.close();

    return imageDatas;
  }

}

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