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The source code is released under:
Apache License
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/** * Copyright 2013 Adam Speakman// w w w . j a va2 s .co 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 nz.net.speakman.android.dreamintweets.twitterstream; import java.util.Date; import java.util.LinkedList; import nz.net.speakman.android.dreamintweets.R; import nz.net.speakman.android.dreamintweets.text.DreamLinkMovementMethod; import nz.net.speakman.android.dreamintweets.text.TextViewLinkHider; import twitter4j.MediaEntity; import twitter4j.Status; import twitter4j.URLEntity; import twitter4j.User; import android.animation.Animator; import android.animation.Animator.AnimatorListener; import android.animation.AnimatorInflater; import android.service.dreams.DreamService; import android.text.Html; import android.text.Spanned; import android.text.method.LinkMovementMethod; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; import com.squareup.picasso.Picasso; public class TwitterStreamAdapter extends BaseAdapter { private class TwitterStreamViewHolder { TextView author; TextView username; TextView timestamp; TextView content; TextView retweetAuthor; View retweetIcon; ImageView authorImage; ImageView contentImage; } private static final int MAX_NUMBER_OF_TWEETS = 50; private static final String CLICKABLE_URL_FORMAT_STRING = "<a href=\"%1$s\">%2$s</a>"; private static final String URL_FORMAT_TWEET_LINK = "https://twitter.com/%1$s/status/%2$s"; private static final String URL_FORMAT_USER_LINK = "https://twitter.com/%s"; // Click listener for the passed-in large content image. private final OnClickListener contentImageLargeClickListener = new OnClickListener() { @Override public void onClick(View v) { mFadeOutAnimator.start(); } }; // Click listener for the content image on a row. private final OnClickListener contentImageRowClickListener = new OnClickListener() { @Override public void onClick(View v) { String mediaUrl = (String) v.getTag(); Picasso.with(mDream).load(mediaUrl).into(mContentImageLargeView); mFadeInAnimator.start(); } }; LinkedList<Status> mTweets = new LinkedList<Status>(); private DreamService mDream; private ImageView mContentImageLargeView; private Animator mFadeInAnimator; private AnimatorListener mFadeInListener = new AnimatorListener() { @Override public void onAnimationStart(Animator animation) { mContentImageLargeView.setVisibility(View.VISIBLE); } @Override public void onAnimationRepeat(Animator animation) { } @Override public void onAnimationEnd(Animator animation) { } @Override public void onAnimationCancel(Animator animation) { } }; private Animator mFadeOutAnimator; private AnimatorListener mFadeOutListener = new AnimatorListener() { @Override public void onAnimationStart(Animator animation) { } @Override public void onAnimationRepeat(Animator animation) { } @Override public void onAnimationEnd(Animator animation) { mContentImageLargeView.setVisibility(View.GONE); } @Override public void onAnimationCancel(Animator animation) { } }; public TwitterStreamAdapter(DreamService dream, ImageView contentImageLargeView) { mDream = dream; mContentImageLargeView = contentImageLargeView; mContentImageLargeView.setOnClickListener(contentImageLargeClickListener); mFadeInAnimator = AnimatorInflater.loadAnimator(mDream, android.R.animator.fade_in); mFadeInAnimator.addListener(mFadeInListener); mFadeInAnimator.setTarget(mContentImageLargeView); mFadeOutAnimator = AnimatorInflater.loadAnimator(mDream, android.R.animator.fade_out); mFadeOutAnimator.addListener(mFadeOutListener); mFadeOutAnimator.setTarget(mContentImageLargeView); } public void onNewStatus(Status status) { synchronized (mTweets) { mTweets.addFirst(status); if (mTweets.size() > MAX_NUMBER_OF_TWEETS) { mTweets.removeLast(); } } notifyDataSetChanged(); } /* * Adapter methods. */ @Override public int getCount() { return mTweets.size(); } @Override public Status getItem(int position) { return mTweets.get(position); } @Override public long getItemId(int position) { return getItem(position).getId(); } @Override public View getView(int position, View convertView, ViewGroup parent) { Status tweet = getItem(position); TwitterStreamViewHolder holder; if (convertView == null) { LinkMovementMethod lmm = new DreamLinkMovementMethod(mDream); convertView = LayoutInflater.from(mDream).inflate( R.layout.tweet_row, parent, false); holder = new TwitterStreamViewHolder(); holder.authorImage = (ImageView) convertView .findViewById(R.id.tweet_author_image); holder.author = (TextView) convertView .findViewById(R.id.tweet_author); holder.author.setMovementMethod(lmm); holder.username = (TextView) convertView .findViewById(R.id.tweet_username); holder.username.setMovementMethod(lmm); holder.timestamp = (TextView) convertView .findViewById(R.id.tweet_timestamp); holder.timestamp.setMovementMethod(lmm); holder.content = (TextView) convertView .findViewById(R.id.tweet_content); holder.content.setMovementMethod(lmm); holder.retweetIcon = convertView .findViewById(R.id.tweet_retweet_icon); holder.retweetAuthor = (TextView) convertView .findViewById(R.id.tweet_retweet_author); holder.retweetAuthor.setMovementMethod(lmm); holder.contentImage = (ImageView) convertView .findViewById(R.id.tweet_content_image); convertView.setTag(holder); } else { holder = (TwitterStreamViewHolder) convertView.getTag(); } if (tweet.isRetweet()) { // We have a retweet - setup the retweeting users details & retweet // icon. holder.retweetAuthor.setVisibility(View.VISIBLE); holder.retweetAuthor.setText(getTweetAuthor(tweet)); holder.retweetIcon.setVisibility(View.VISIBLE); // Then populate the rest of the view with the retweeted status. tweet = tweet.getRetweetedStatus(); } else { holder.retweetAuthor.setVisibility(View.GONE); holder.retweetIcon.setVisibility(View.GONE); } holder.author.setText(getTweetAuthor(tweet)); holder.username.setText(getTweetUsername(tweet)); holder.timestamp.setText(getTweetTimestamp(tweet)); holder.content.setText(getTweetText(tweet)); loadImages(holder, tweet); // Hide underlining/coloring of non-content links. hideLinks(holder); // Hide underlining of content links hideLinkUnderlines(holder); return convertView; } private Spanned getTweetAuthor(Status tweet) { User user = tweet.getUser(); return Html.fromHtml(getClickableUrl(getUserUrl(user), user.getName())); } private Spanned getTweetUsername(Status tweet) { User user = tweet.getUser(); return Html.fromHtml(getClickableUrl(getUserUrl(user), "@" + user.getScreenName())); } private Spanned getTweetTimestamp(Status tweet) { Date tweetTime = tweet.getCreatedAt(); Date now = new Date(); Date difference = new Date(now.getTime() - tweetTime.getTime()); long diff = difference.getTime() / 1000; String timestamp; if (diff <= 0) { timestamp = mDream.getString(R.string.tweet_timestamp_just_now); } else if (diff / (24 * 60 * 60) > 0) { diff = diff / (24 * 60 * 60); if (diff > 1) timestamp = mDream.getString(R.string.tweet_timestamp_x_days_ago, diff); else timestamp = mDream.getString(R.string.tweet_timestamp_1_day_ago); } else if (diff / (60 * 60) > 0) { diff = diff / (60 * 60); if (diff > 1) timestamp = mDream.getString(R.string.tweet_timestamp_x_hours_ago, diff); else timestamp = mDream.getString(R.string.tweet_timestamp_1_hour_ago); } else if (diff / 60 > 0) { diff = diff / 60; if (diff > 1) timestamp = mDream.getString(R.string.tweet_timestamp_x_minutes_ago, diff); else timestamp = mDream.getString(R.string.tweet_timestamp_1_minute_ago); } else { if (diff > 1) timestamp = mDream.getString(R.string.tweet_timestamp_x_seconds_ago, diff); else timestamp = mDream.getString(R.string.tweet_timestamp_1_second_ago); } return Html.fromHtml(getClickableUrl(getTweetUrl(tweet), timestamp)); } private Spanned getTweetText(Status tweet) { String text = tweet.getText(); for (URLEntity urlEntity : tweet.getURLEntities()) { text = text.replace(urlEntity.getURL(), getClickableUrl(urlEntity)); } for (MediaEntity mediaEntity : tweet.getMediaEntities()) { // TODO Optionally load images into stream text = text.replace(mediaEntity.getURL(), getClickableMedia(mediaEntity)); } // for (HashtagEntity hashtagEntity : tweet.getHashtagEntities()) { // // TODO Make clickable // } return Html.fromHtml(text); } private String getUserUrl(User user) { return String.format(URL_FORMAT_USER_LINK, user.getScreenName()); } private String getTweetUrl(Status tweet) { return String.format(URL_FORMAT_TWEET_LINK, tweet.getUser() .getScreenName(), tweet.getId()); } private String getClickableUrl(String link, String display) { return String.format(CLICKABLE_URL_FORMAT_STRING, link, display); } private String getClickableUrl(URLEntity entity) { return getClickableUrl(entity.getURL(), entity.getDisplayURL()); } private String getClickableMedia(MediaEntity entity) { return getClickableUrl(entity); } // private String getClickableHashtag(HashtagEntity entity) { // return ""; // } private void hideLinkUnderlines(TwitterStreamViewHolder holder) { TextViewLinkHider linkHider = new TextViewLinkHider(); linkHider.hideLinkUnderlines(holder.content); } private void hideLinks(TwitterStreamViewHolder holder) { TextViewLinkHider linkHider = new TextViewLinkHider(); linkHider.hideLinks(holder.retweetAuthor); linkHider.hideLinks(holder.author); linkHider.hideLinks(holder.username); linkHider.hideLinks(holder.timestamp); } private void loadImages(TwitterStreamViewHolder holder, Status tweet) { Picasso picasso = Picasso.with(mDream); // Author image picasso.load(tweet.getUser().getBiggerProfileImageURLHttps()) .into(holder.authorImage); // Any media? If so, load the first one. MediaEntity[] media = tweet.getMediaEntities(); // Photo is currently only media type; if they add more in future, we (obviously) don't handle that. // https://dev.twitter.com/docs/entities#tweets if (media != null && media.length > 0 && "photo".equals(media[0].getType())) { holder.contentImage.setVisibility(View.VISIBLE); final String mediaUrl = media[0].getMediaURLHttps(); picasso.load(mediaUrl).into(holder.contentImage); holder.contentImage.setTag(mediaUrl); holder.contentImage.setOnClickListener(contentImageRowClickListener); } else { holder.contentImage.setVisibility(View.GONE); } } }