Android Open Source - Android-Universal-Image-Loader Image Gallery Fragment

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License

The source code is released under:

Apache License

Java Source Code

/*******************************************************************************
 * Copyright 2011-2014 Sergey Tarasevich
 */*from   w ww.  j a va  2 s .c  o m*/
 * 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.nostra13.universalimageloader.sample.fragment;

import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.sample.Constants;
import com.nostra13.universalimageloader.sample.R;
import com.nostra13.universalimageloader.sample.activity.SimpleImageActivity;

/**
 * @author Sergey Tarasevich (nostra13[at]gmail[dot]com)
 */
public class ImageGalleryFragment extends BaseFragment {

  public static final int INDEX = 3;

  String[] imageUrls = Constants.IMAGES;

  DisplayImageOptions options;

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    options = new DisplayImageOptions.Builder()
        .showImageOnLoading(R.drawable.ic_stub)
        .showImageForEmptyUri(R.drawable.ic_empty)
        .showImageOnFail(R.drawable.ic_error)
        .cacheInMemory(true)
        .cacheOnDisk(true)
        .considerExifParams(true)
        .bitmapConfig(Bitmap.Config.RGB_565)
        .build();
  }

  @SuppressWarnings("deprecation")
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fr_image_gallery, container, false);
    Gallery gallery = (Gallery) rootView.findViewById(R.id.gallery);
    gallery.setAdapter(new ImageAdapter());
    gallery.setOnItemClickListener(new OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        startImagePagerActivity(position);
      }
    });
    return rootView;
  }


  private void startImagePagerActivity(int position) {
    Intent intent = new Intent(getActivity(), SimpleImageActivity.class);
    intent.putExtra(Constants.Extra.FRAGMENT_INDEX, ImagePagerFragment.INDEX);
    intent.putExtra(Constants.Extra.IMAGE_POSITION, position);
    startActivity(intent);
  }

  private class ImageAdapter extends BaseAdapter {

    private LayoutInflater inflater;

    ImageAdapter() {
      inflater = LayoutInflater.from(getActivity());
    }

    @Override
    public int getCount() {
      return imageUrls.length;
    }

    @Override
    public Object getItem(int position) {
      return position;
    }

    @Override
    public long getItemId(int position) {
      return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
      ImageView imageView = (ImageView) convertView;
      if (imageView == null) {
        imageView = (ImageView) inflater.inflate(R.layout.item_gallery_image, parent, false);
      }
      ImageLoader.getInstance().displayImage(imageUrls[position], imageView, options);
      return imageView;
    }
  }
}

Java Source Code List

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