Twitter App in Processing - api

Question

I'm having a massive problem with a Twitter App I'm trying to create. I've been at this problem for 2 weeks straight, 14 hours a day and I cannot get my head around how to fix. I'm a newbie so I'm sure it's just a simple matter.
I need my twitter stream to display five tweets at a time. Then I need for it to remove the oldest tweet and replace it with a new one. Now I was told the best method for this is to use the Linkedlist, which makes perfect sense. However, whenever I attempt to incorporate this, it just won't work.
If someone could help me out I'd be endlessly grateful as I'm at my wits end at this point.
Here's the code:
import com.francisli.processing.http.*;
import java.util.LinkedList;
//LinkedList myList;
HashMap overall = new HashMap();
HttpClient client;
LinkedList myList;
PImage prhomoPix;
int results_to_show = 5;
int updateTime = 10000;
int updateDiff = 0;
void setup()
{
myList = new LinkedList();
for (int i = 0; i < 5; i++)
{
myList.add(client);
}
size(1143, 800);
prhomoPix = loadImage("PrhomoAppBg.jpg");
background(0);
image(prhomoPix, 0, 0);
fill(0, 0, 0, 80);
noStroke();
rect(20, 135, 370, 670);
fill(0, 0, 0, 80);
noStroke();
rect(755, 135, 370, 670);
textAlign(CENTER, CENTER);
}
void responseReceived(HttpRequest request, HttpResponse response)
{
if(response.statusCode == 200)
{
JSONObject allresults;
allresults = response.getContentAsJSONObject();
//JSONObject timeline_tweets = response.getContentAsJSONObject();
for (int i = 0; i < 5; i++)
{
text(allresults.get("results").get(i).get("text").stringValue(), 25, 50+(i*120), 330, 330);
}
frameRate(2);
//}
//for (int i=0; i < results_to_show; i++)
//{
// text(allresults.get("results").get(i).get("text").stringValue(), 25, 50+(i*120), 330, 330);
// }
}
else
{
text("UH-OH" + response.getContentAsString(), 50, 50);
}
}
void tweetUpdate()
{
if(millis() > (updateTime + updateDiff))
{
client = new HttpClient(this, "search.twitter.com");//what webservice we are using, this is the priate OAuth one. "this" means it is not cpying setting from anywhere else
client.GET("search.json?q=dublin&rpp="+results_to_show+"&result_type=recent");
//println(myList);
updateDiff = millis();
}
}
void draw()
{
myList.remove(client);
myList.add(client);
tweetUpdate();
}
Once again thanks so much!

Answer 1

To be honest with you, Java is really not my field, but these tutorials looked quite self explanatory. Hope they help.
http://examples.javacodegeeks.com/core-java/util/linkedlist/

Answer 2

You have to repaint whole screen in draw() method.
I guess, people told you to save tweets in LinkedList, not HttpClient.
Update list of tweets in responseReceived() method.
Eventually, your draw would look something like this:
void draw() {
// repaint
background(0);
// draw picture
image(prhomoPix, 0, 0);
// repaint all tweets
for(int i=0; i< tweetsList.size(); ++i {
drawTweet(tweetsList);
}
tweetUpdate(); // update list of tweets from server
}
tweetUpdate()
void tweetUpdate() {
client = new HttpClient(this, "search.twitter.com");
client.GET("search.json?q=dublin&rpp="+results_to_show+"&result_type=recent");
}