Android Open Source - SimpleTwitterClient Tweet Array Adapter

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License

The source code is released under:

Copyright (c) 2014 Keithen Hayenga Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the So...

Java Source Code

package com.codepath.apps.basictwitter;
/*  w  w  w  . j av a 2s  .  c  o m*/
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;
import java.util.Locale;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.codepath.apps.basictwitter.models.Tweet;
import com.nostra13.universalimageloader.core.ImageLoader;

public class TweetArrayAdapter extends ArrayAdapter<Tweet> {

  public TweetArrayAdapter(Context context, List<Tweet> tweets) {
    super(context, 0, tweets);
  }

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    // Get the data we want to display
    Tweet tweet = getItem(position);
    
    // Display the data
    View v;
    if (convertView == null) {
      LayoutInflater inflator = LayoutInflater.from(getContext());
      v = inflator.inflate(R.layout.tweet_item, parent, false);
    } else {
      v = convertView;
    }
    
    // Find the views within the template.
    ImageView ivProfileImage = (ImageView) v.findViewById(R.id.ivProfileImage);
    TextView tvUserName = (TextView) v.findViewById(R.id.tvUserName);
    TextView tvScreenName = (TextView) v.findViewById(R.id.tvScreenName);
    TextView tvDate = (TextView) v.findViewById(R.id.tvDate);
    TextView tvBody = (TextView) v.findViewById(R.id.tvBody);
    ivProfileImage.setImageResource(android.R.color.transparent);  // Clear previous image
    ImageLoader imageLoader = ImageLoader.getInstance();
    // Populate views with tweet data.
    imageLoader.displayImage(tweet.getUser().getProfileImageUrl(), ivProfileImage);
    tvUserName.setText(tweet.getUser().getName());
    tvScreenName.setText("@" + tweet.getUser().getScreenName());
    tvDate.setText(getTwitterDate(tweet.getCreatedAt()));
    tvBody.setText(tweet.getBody());
    return v;
  }

  static final long SECMILS = 1000;      // milliseconds in a second
  static final long MINMILS = 60 * SECMILS;  // milliseconds in a minute
  static final long HOURMILS = 60 * MINMILS;  // milliseconds in an hour
  static final long DAYMILS = 24 * HOURMILS;  // milliseconds in a day
  static final long WEEKMILS = 7 * DAYMILS;  // milliseconds in a week
  // Anything over a week appears at month and date and maybe year.
  
  public String getTwitterDate(String stCreateDate) {
    // "created_at": "Wed Mar 03 19:37:35 +0000 2010",
    SimpleDateFormat dateFormat = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy");
    Date createDate;
    
    try {
      createDate = dateFormat.parse(stCreateDate);
    } catch (java.text.ParseException e) {
      e.printStackTrace();
      // If parsing error, display original create date string.
      return stCreateDate;
    }
    
    long createMils = createDate.getTime();
    Date today = new Date();        // Set to current time and date.
    long todayMils = today.getTime();
    long deltaMils = todayMils - createMils;
    
    if (deltaMils < MINMILS)
      return deltaMils / SECMILS + "s";
    if (deltaMils < HOURMILS)
      return deltaMils / MINMILS + "m";
    if (deltaMils < DAYMILS)
      return deltaMils / HOURMILS + "h";
    if (deltaMils < WEEKMILS)
      return deltaMils / DAYMILS + "d";

    // If we're more than a week, we display month and date.
    // Switch to GregorianCalendar to compare years
    GregorianCalendar todayCalDate = new GregorianCalendar();
    todayCalDate.setTime(today);
    int todayYear = todayCalDate.get(Calendar.YEAR);
    GregorianCalendar createCalDate = new GregorianCalendar();
    createCalDate.setTime(createDate);
    String stMonth = createCalDate.getDisplayName(Calendar.MONTH, Calendar.SHORT, Locale.US);
    int createDay = createCalDate.get(Calendar.DAY_OF_MONTH);
    int createYear = createCalDate.get(Calendar.YEAR);
    if (todayYear == createYear) {
      // Years are same so only display month and day.
      return createDay + " " + stMonth;
    } else {
      // Years different, so display month, day, and year.
      createYear %= 100;  // only display 2 least significant digits.
      return createDay + " " + stMonth + " " + createYear;
    }
  }
}

Java Source Code List

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