Show Timelines
TweetUi provides Timelines for adding scrollable timelines anywhere in your app.
Types
Features
- Automatic guest authentication
- Adapter loads previous items
- Adapter
refreshmethod for implementing pull to refresh
To show a timeline in your app, first create a RecyclerView or ListView in an Activity or Fragment. Next, choose a Timeline instance (UserTimeline, SearchTimeline, CollectionTimeline, TwitterListTimeline, or FixedTweetTimeline) and configure it using the Builder. Finally, build a TweetTimelineRecyclerViewAdapter or a TweetTimelineListAdapter as the adapter to your RecyclerView or ListView adapter respectively and provide it with the Timeline instance. TweetTimelineRecyclerViewAdapter and TweetTimelineListAdapter both accept any Timeline and handle loading older Tweets and recycling views.
Timelines use guest authentication automatically so no auth setup is needed. More advanced Builder options are documented below.
UserTimeline which shows the @twitterdev user's timeline of Tweets:
UserTimeline userTimeline = new UserTimeline.Builder().screenName("twitterdev").build();SearchTimeline which shows Tweets matching the query "#twitterflock":
SearchTimeline searchTimeline = new SearchTimeline.Builder()
.query("#twitterflock")
.build();CollectionTimeline for the National Parks Tweets example collection of Tweets:
CollectionTimeline timeline = new CollectionTimeline.Builder()
.id(539487832448843776)
.build();TwitterListTimeline for the @twitterdev national-parks list can be created with the owner screen name (or user id) and list name:
final TwitterListTimeline timeline = new TwitterListTimeline.Builder()
.slugWithOwnerScreenName("national-parks", "twitterdev")
.build();FixedTweetTimeline which shows a fixed set of Tweets:
final FixedTweetTimeline timeline = new FixedTweetTimeline.Builder()
.setTweets(listOfTweets)
.build();Here is an example Activity setting up a RecyclerView using SearchTimeline:
import com.twitter.sdk.android.tweetui.SearchTimeline;
import com.twitter.sdk.android.tweetui.TweetTimelineRecyclerViewAdapter;
public class TimelineRecyclerViewActivity extends AppCompatActivity {
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tweetui_timeline_recyclerview);
final RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
final SearchTimeline searchTimeline = new SearchTimeline.Builder()
.query("#hiking")
.maxItemsPerRequest(50)
.build();
final TweetTimelineRecyclerViewAdapter adapter =
new TweetTimelineRecyclerViewAdapter.Builder(this)
.setTimeline(searchTimeline)
.setViewStyle(R.style.tw__TweetLightWithActionsStyle)
.build();
recyclerView.setAdapter(adapter);
}
}Here is an example Activity setting up a UserTimeline:
import com.twitter.sdk.android.tweetui.TweetTimelineListAdapter;
import com.twitter.sdk.android.tweetui.UserTimeline;
public class TimelineActivity extends ListActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.timeline);
final UserTimeline userTimeline = new UserTimeline.Builder()
.screenName("twitterdev")
.build();
final TweetTimelineListAdapter adapter = new TweetTimelineListAdapter.Builder(this)
.setTimeline(userTimeline)
.build();
setListAdapter(adapter);
}
}and the corresponding XML layout timeline.xml, showing attribute values without resource references for clarity:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView android:id="@id/android:empty"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal|center_vertical"
android:text="No Tweets"/>
<ListView android:id="@id/android:list"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:divider="#e1e8ed"
android:dividerHeight="1dp"
android:drawSelectorOnTop="false"/>
</LinearLayout>
As a user scrolls down previous Tweets will be loaded into the ListView. Note, TimelineListAdapters currently load a maximum of 200 items.
The Twitter collections documentation describes collection timelines and shows how they can be created and managed. One approach is through TweetDeck as described in this post.
After you've created a collection, view it on twitter.com, and get the id from the address bar. The example National Parks Tweets collection has id 539487832448843776. Create a CollectionTimeline and provide it to a TweetTimelineListAdapter set on a ListView.
import com.twitter.sdk.android.tweetui.TweetTimelineListAdapter;
import com.twitter.sdk.android.tweetui.CollectionTimeline;
public class TimelineActivity extends ListActivity {
final Callback<Tweet> actionCallback = ...
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.timeline);
// Collection "National Parks Tweets"
final CollectionTimeline timeline = new CollectionTimeline.Builder()
.id(539487832448843776L)
.build();
final TweetTimelineListAdapter adapter = new TweetTimelineListAdapter.Builder(this)
.setTimeline(timeline)
.setViewStyle(R.style.tw__TweetLightWithActionsStyle)
.setOnActionCallback(actionCallback)
.build();
setListAdapter(adapter);
}
}
Tweets added to the collection (via TweetDeck or other services) will appear in this CollectionTimeline.
To implement a more advanced pull to refresh adapter, see the section on Pull to Refresh.
Twitter Kit provides functionality to filter the Tweets displayed in your app, according to rules you provide. You can use this functionality to prevent showing Tweets with profane words, hide Tweets that link to blacklisted URLs, or block particular user's Tweets from appearing in your app. The rules can be managed in a standard JSON configuration file, and used on any timeline in Twitter Kit for Android and iOS.
The TweetTimelineListAdapter supports the ability specify a TweetFilter to filter timeline content. BasicTimelineFilter which implements the TweetFilter interface supports filtering of Tweet by hashtags, urls, handles, and keywords.
public class SearchTimelineFragment extends ListActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final List<String> handles = Arrays.asList("ericfrohnhoefer", "benward", "vam_si");
final FilterValues filterValues = new FilterValues(null, null, handles, null); // or load from JSON, XML, etc
final TimelineFilter timelineFilter = new BasicTimelineFilter(filterValues, Locale.ENGLISH);
final SearchTimeline searchTimeline = new SearchTimeline.Builder()
.query("#twitterflock")
.languageCode(Locale.ENGLISH.getLanguage())
.build();
final TweetTimelineListAdapter adapter = new TweetTimelineListAdapter.Builder(this)
.setTimeline(searchTimeline)
.setTimelineFilter(timelineFilter)
.build();
setListAdapter(adapter);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.timeline, container, false);
}
}Using the BasicTimelineFilter one can specify four different filters using the FilterValues object.
| Filter Value | Description |
|---|---|
| keywords | Removes Tweets containing specified keywords in Tweet text. Uses localized case-insensitive matching. |
| hashtags | Removes Tweets containing specified hashtags. Uses localized case-insensitive matching. |
| handles | Removes Tweets from specified user or replies to specified user. Uses case-insensitive matching. |
| urls | Removes Tweet containing URLs from specified domain. Supports internationalized domain names. |
You can easily load your filter settings using a JSON configuration file and GSON, like so:
{
"keywords": [
"dummy"
],
"hashtags": [
"cookies"
],
"handles": [
"benward",
"vam_si",
"ericfrohnhoefer"
],
"urls": [
"example.com"
]
}final InputStream inputStream = getResources().openRawResource(R.raw.filter_values);
final JsonReader reader = new JsonReader(new InputStreamReader(inputStream));
final FilterValues filterValues = new Gson().fromJson(reader, FilterValues.class);The above example loads the configuration from a raw resource. However, you can store the configuration file locally, or pull from a remote server to deliver over-the-air updates to your filter configuration. You can use the same configuration file for Twitter Kit on both Android and iOS.
The TweetTimelineListAdapter supports a refresh method which loads the latest Tweets from its timeline and replaces existing list items. You might use this to implement pull to refresh.
Here is how refresh might be called if using a SwipeRefreshLayout.
import android.support.v4.widget.SwipeRefreshLayout;
import com.twitter.sdk.android.core.Callback;
import com.twitter.sdk.android.core.Result;
import com.twitter.sdk.android.core.TwitterException;
import com.twitter.sdk.android.core.models.Tweet;
import com.twitter.sdk.android.tweetui.SearchTimeline;
import com.twitter.sdk.android.tweetui.TimelineResult;
import com.twitter.sdk.android.tweetui.TweetTimelineListAdapter;
...
// inside onCreate
final SwipeRefreshLayout swipeLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_layout);
final SearchTimeline timeline = new SearchTimeline.Builder()
.query("#twitter")
.build();
final TweetTimelineListAdapter adapter = new TweetTimelineListAdapter.Builder(this)
.setTimeline(timeline)
.build();
setListAdapter(adapter);
swipeLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
swipeLayout.setRefreshing(true);
adapter.refresh(new Callback<TimelineResult<Tweet>>() {
@Override
public void success(Result<TimelineResult<Tweet>> result) {
swipeLayout.setRefreshing(false);
}
@Override
public void failure(TwitterException exception) {
// Toast or some other action
}
});
}
});User timelines show the Tweet timeline of an individual Twitter user. The UserTimeline.Builder provides the following methods:
| Builder Method | Description |
|---|---|
| userId | The ID of the user to show tweets for. |
| screenName | The screen name of the user to show tweets for. |
| maxItemsPerRequest | Max number of items to return per request. |
| includeReplies | Whether to include replies. Defaults to false. |
| includeRetweets | Whether to include retweets. Defaults to true. |
Search timelines show search results with recent Tweets (~ 1 week) matching a given search query. Check the Search API for information about the advanced search query parameters that can be used in your search query string.
The SearchTimeline.Builder provides the following methods:
| Builder Method | Description |
|---|---|
| query | The search query for Tweets. |
| languageCode | Restricts Tweets to the given ISO 639-1 language. |
| maxItemsPerRequest | Max number of items to return per request. |
| resultType | Allows one to choose if the result set will be represented by recent or popular Tweets, or a mix of both. |
| untilDate | Returns tweets generated before the given date. Date should be formatted as YYYY-MM-DD. |
Collection timelines show the Tweets of a collection, a user managed collection of Tweets selected either by hand or programmatically.
The CollectionTimeline.Builder provides the following methods:
| Builder Method | Description |
|---|---|
| id | The ID of the collection to show tweets for. |
| maxItemsPerRequest | Max number of items to return per request. |
Twitter List timelines show a user's Twitter List, which collects Tweets authored by members of the list. The TwitterListTimeline.Builder provides the following methods:
| Builder Method | Description |
|---|---|
| id | Specifies the list by ID. |
| slugWithOwnerId | Specifies the list by the owner User ID and list name. |
| slugWithOwnerScreenName | Specifies the list by owner screen name and list name. |
| includeRetweets | Whether retweets should be included; defaults to true. |
| maxItemsPerRequest | Max number of items to return per request. |
Fixed Tweet timelines show a fixed set of Tweets. The FixedTweetTimeline.Builder provides the following methods:
| Builder Method | Description |
|---|---|
| setTweets | Fixed set of Tweets provided by the timeline. |