I am creating my own Android app on Twitter.
I'm a beginner.
I use twitte4j.
I managed to create a time line to be displayed.
Therefore, instead of manually updating it, I would like to add a setting that automatically updates the timeline.
I'm studying Streaming API, but I'm not sure.
I will post the MainActivity code, so I would appreciate it if you could advise me on adding automatic updates, such as where and what kind of code I should add.
Thank you for your cooperation.
public class MainActivity extensions ListActivity{
private TweetAdapter mAdapter;
private Twitter mTwitter;
@ Override
protected void onCreate (Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if(!TwitterUtils.hasAccessToken(this)){
Intent=new Intent(this,TwitterOAuthActivity.class);
startActivity (intent);
finish();
} else{
mAdapter=newTweetAdapter(this);
setListAdapter (mAdapter);
mTwitter=TwitterUtils.getTwitterInstance(this);
reloadTimeLine();
}
}
@ Override
public boolean onCreateOptionsMenu(Menu){
// Inflate the menu; this add items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
private class TweetAdapter extensions ArrayAdapter <twitter4j.Status>{
private LayoutInflater mInflater;
public TweetAdapter (Context context) {
super(context,android.R.layout.simple_list_item_1);
mInflater=(LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
}
@ Override
publicView getView(int position, View convertView, ViewGroup parent) {
if(convertView==null){
convertView=mInflater.inflate(R.layout.list_item_tweet, null);
}
Status item=getItem(position);
TextView name=(TextView) convertView.findViewById(R.id.name);
name.setText(item.getUser().getName());
TextView screenName=(TextView) convertView.findViewById(R.id.screen_name);
screenName.setText("@"+item.getUser().getScreenName());
TextView text=(TextView) convertView.findViewById(R.id.text);
text.setText(item.getText());
SmartImageView= (SmartImageView) convertView.findViewById (R.id.icon);
icon.setImageUrl(item.getUser().getProfileImageURL());
return convertView;
}
}
private void reloadTimeLine(){
AsyncTask<Void,Void,List<Twitter4j.Status>>task=new AsyncTask<Void,Void,List<Twitter4j.Status>>(){
@ Override
Protected List <twitter4j.Status>doInBackground(Void...params){
try{
return mTwitter.getHomeTimeline();
} catch(TwitterExceptione){
e.printStackTrace();
}
return null;
}
@ Override
protected void onPostExecute(List<twitter4j.Status>result){
if(result!=null){
mAdapter.clear();
for (twitter4j.Status status:result) {
mAdapter.add(status);
}
getListView().setSelection(0);
} else{
showToast("Failed to get timeline...");
}
}
};
task.execute();
}
private void showToast (String text) {
Toast.makeText(this,text,Toast.LENGTH_SHORT).show();
}
}
Twitter 4J has a class called TwitterStream, so I think it would be easier to use it.
Example:
TwitterStream twitterStream=newTwitterStreamFactory().getInstance();
StatusListener listener = new StatusListener() {
@ Override
public void onStatus (Status status) {
System.out.println("@"+status.getUser().getScreenName()+"-"+status.getText());
}
@ Override
public void onDeletionNotice (StatusDeletionNotice) {
System.out.println("Gota status deletion notice id:" + statusDeletionNotice.getStatusId());
}
@ Override
public void onTrackLimitationNotice(int numberOfLimitedStatus) {
System.out.println("Got track limitation notice:" + numberOfLimitedStatus);
}
@ Override
public void onScrubGeo(long userId,long upToStatusId){
System.out.println("Gotscrub_geo event userId:"+userId+"upToStatusId:"+upToStatusId);
}
@ Override
public void onStallWarning (StallWarning warning) {
System.out.println("Got stall warning:" + warning);
}
@ Override
public void onException (Exceptionex) {
ex.printStackTrace();
}
};
twitterStream.addListener(listener);
twitterStream.sample();
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