Android Open Source - Test-SimpleTwitterClient Tweet Adapter

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Java Source Code

package com.example.Twitter_Android.Fragments.Adapters;
//ww w . j  a  v  a  2s.c  om
import android.app.Activity;
import android.graphics.Bitmap;
import android.preference.PreferenceManager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.*;
import com.example.Twitter_Android.AppActivity.SettingsActivity;
import com.example.Twitter_Android.AsynkTasks.ImageDownloader;
import com.example.Twitter_Android.Fragments.Dialogs.ReplyDialog;
import com.example.Twitter_Android.Fragments.Dialogs.RetweetDialog;
import com.example.Twitter_Android.Logic.DataCache;
import com.example.Twitter_Android.Logic.Person;
import com.example.Twitter_Android.Logic.Tweet;
import com.example.Twitter_Android.R;

import java.util.List;

/**
 * ??????? ??? ??????????? ?????? ??????.
 */
public class TweetAdapter extends TimelineAdapter<Tweet> {
  private final LayoutInflater layoutInflater;
  private final DataCache cache;
  private final ImageDownloader imageDownloader;
  private Activity mainActivity;
  private static boolean isImagesLoadingAllowed;

  private static class ViewHolder {
    TextView retweetedBy;
    TextView name;
    TextView screenName;
    TextView date;
    TextView text;
    ImageView avatar;
    ImageView attachedImage;
    Button buttonShowImage;
    ImageButton buttonReply;
    ImageButton buttonRetweet;
    ImageButton buttonFavorite;
    ProgressBar progress;
  }

  //------------------------------------------------------------------------------------------------------------------
  public TweetAdapter(Activity activity, List<Tweet> newTweets, String tag) {
    super(newTweets, tag);
    layoutInflater = LayoutInflater.from(activity);
    mainActivity = activity;
    cache = DataCache.getInstance();
    imageDownloader = new ImageDownloader();
    isImagesLoadingAllowed = PreferenceManager.getDefaultSharedPreferences(activity)
        .getBoolean(SettingsActivity.ALLOW_IMAGE_LOADING, true);
  }

  //------------------------------------------------------------------------------------------------------------------
  @Override
  public int getItemViewType(int position) {
    return 0;
  }

  //------------------------------------------------------------------------------------------------------------------
  @Override
  public int getViewTypeCount() {
    return 1;
  }
  //------------------------------------------------------------------------------------------------------------------

  @Override
  public View getView(final int position, View convertView, final ViewGroup parent) {
    final ViewHolder holder;
    if (convertView == null) {
      convertView = layoutInflater.inflate(R.layout.single_tweet_layout, null);
      holder = new ViewHolder();
      holder.retweetedBy = (TextView) convertView.findViewById(R.id.retweeted_by);
      holder.name = (TextView) convertView.findViewById(R.id.username_textview);
      holder.screenName = (TextView) convertView.findViewById(R.id.user_screen_name_textview);
      holder.date = (TextView) convertView.findViewById(R.id.tweet_date_textview);
      holder.text = (TextView) convertView.findViewById(R.id.tweet_text_textview);
      holder.avatar = (ImageView) convertView.findViewById(R.id.user_avatar_imageview);
      holder.attachedImage = (ImageView) convertView.findViewById(R.id.attached_image);
      holder.buttonShowImage = (Button) convertView.findViewById(R.id.button_show_image);
      holder.buttonReply = (ImageButton) convertView.findViewById(R.id.image_button_reply);
      holder.buttonRetweet = (ImageButton) convertView.findViewById(R.id.image_button_retweet);
      holder.buttonFavorite = (ImageButton) convertView.findViewById(R.id.image_button_favorite);
      holder.progress = (ProgressBar) convertView.findViewById(R.id.image_loading_progress);
      convertView.setTag(holder);
    } else {
      holder = (ViewHolder) convertView.getTag();
    }
    final Tweet tweet = getItem(position);
    final Person author = tweet.getAuthor();

    if (tweet.isRetweeted()) {
      Person p = tweet.retweetedBy();
      holder.retweetedBy.setText(mainActivity.getString(R.string.text_retweeted_by) + " " + p.getName() + " @" + p.getScreenName());
      holder.retweetedBy.setVisibility(View.VISIBLE);
    } else {
      holder.retweetedBy.setVisibility(View.GONE);
    }

    holder.name.setText(author.getName());
    holder.screenName.setText("@" + author.getScreenName());
    holder.date.setText(tweet.getCreationTime());
    holder.text.setText(tweet.getText());
    /*
      TextView ? ???????????? ???????????? ????????????? ?????, ?.?. ?????????? ?????????? ??????????
      ????????? ???????. ???????, ?????? ???.
      TODO:   ????????, ??? ????? (???? ?????) ??????? ??????????.
     */
    if (tweet.hasLinkInText()) {
      holder.text.setFocusable(false);
      holder.text.setFocusableInTouchMode(false);
    }
    //--------????????? ????????-----------------------------------
    if (isImagesLoadingAllowed) {
      Bitmap bitmapAvatar = cache.getImage(tweet.getAuthor().getProfileImage());
      if (bitmapAvatar == null) {
        imageDownloader.loadBitmap(tweet.getAuthor().getProfileImage(), holder.avatar);
      } else {
        holder.avatar.setImageBitmap(bitmapAvatar);
      }
    }
    //--------????????? ??????????? ???????????---------------------
    if (tweet.hasMedia()) {
      Bitmap attachedBitmap = cache.getImage(tweet.getMediaUrl());
      if (attachedBitmap != null) {
        //?????????? ????????, ??????? ??????.
        holder.attachedImage.setImageBitmap(attachedBitmap);
        holder.attachedImage.setVisibility(View.VISIBLE);
        holder.buttonShowImage.setVisibility(View.GONE);
      } else {
        holder.attachedImage.setVisibility(View.GONE);
        holder.buttonShowImage.setVisibility(View.VISIBLE);
        holder.buttonShowImage.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View v) {
            //?????????? ???????????, ?????? ????????, ??????? ??????.
            holder.progress.setVisibility(View.VISIBLE);
            imageDownloader.loadBitmap(tweet.getMediaUrl(), holder.attachedImage, holder.progress);
            v.setVisibility(View.GONE);
          }
        });
        holder.buttonShowImage.setFocusable(false);
      }
    } else {
      holder.attachedImage.setVisibility(View.GONE);
      holder.buttonShowImage.setVisibility(View.GONE);
      holder.progress.setVisibility(View.GONE);
    }

    holder.buttonReply.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        reply(tweet);
      }
    });

    holder.buttonRetweet.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        retweet(tweet);
      }
    });

    holder.buttonFavorite.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        Toast.makeText(mainActivity, "Need to create favorite method", Toast.LENGTH_LONG).show();
      }
    });

    holder.buttonReply.setFocusable(false);
    holder.buttonRetweet.setFocusable(false);
    holder.buttonFavorite.setFocusable(false);

    return convertView;
  }

  //------------------------------------------------------------------------------------------------------------------
  private void reply(Tweet toReply) {
    ReplyDialog dialog = ReplyDialog.getInstance(toReply);
    dialog.show(mainActivity.getFragmentManager().beginTransaction(), ReplyDialog.TAG);
  }
  //------------------------------------------------------------------------------------------------------------------

  private void retweet(Tweet toRetweet) {
    RetweetDialog dialog = RetweetDialog.getInstance(toRetweet);
    dialog.show(mainActivity.getFragmentManager().beginTransaction(), RetweetDialog.TAG);
  }

  //------------------------------------------------------------------------------------------------------------------
  //TODO: ????? ?????????? ?? ???? ???????.
  @Override
  public void updateContext(Activity activity) {
    mainActivity = activity;
  }
}
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