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package course.labs.fragmentslab;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.content.Context;
import android.util.Log;
import android.util.SparseArray;
// Utility class that provides stored Twitter feed data
public class FeedFragmentData {
private static final String TAG = "FeedFragmentData";
private static final int[] IDS = { R.raw.ladygaga, R.raw.rebeccablack, R.raw.taylorswift };
private SparseArray<String> mFeeds = new SparseArray<String>();
private Context mContext;
public FeedFragmentData(Context context) {
mContext = context;
loadFeeds();
}
// Load all stored Twitter feeds into the mFeeds SparseArray.
private void loadFeeds() {
for (int id : IDS) {
InputStream inputStream = mContext.getResources().openRawResource(id);
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
StringBuffer buffer = new StringBuffer("");
// Read raw data from resource file
try {
String line = "";
while ((line = reader.readLine()) != null) {
buffer.append(line);
}
} catch (IOException e) {
Log.i(TAG, "IOException");
}
// Convert raw data into a String
JSONArray feed = null;
try {
feed = new JSONArray(buffer.toString());
} catch (JSONException e) {
Log.i(TAG, "JSONException");
}
mFeeds.put(id, procFeed(feed));
}
}
// Convert JSON formatted data to a String
private String procFeed(JSONArray feed) {
String name = "";
String tweet = "";
// string buffer for twitter feeds
StringBuffer textFeed = new StringBuffer("");
for (int j = 0; j < feed.length(); j++) {
try {
tweet = feed.getJSONObject(j).getString("text");
JSONObject user = (JSONObject) feed.getJSONObject(j).get("user");
name = user.getString("name");
} catch (JSONException e) {
Log.i(TAG, "JSONException while processing feed");
}
textFeed.append(name + " - " + tweet + "\n\n");
}
return textFeed.toString();
}
// Return the Twitter feed data for the specified position as a single String
String getFeed (int position) {
return mFeeds.get(IDS[position]);
}
}
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