TranslatorsShowActivity.java

package dentex.youtube.downloader.docs;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.ListActivity;
import android.content.res.AssetManager;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.util.Log;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import dentex.youtube.downloader.R;
import dentex.youtube.downloader.utils.SectionedAdapter;
import dentex.youtube.downloader.utils.Utils;

public class TranslatorsShowActivity extends ListActivity {
	
	public static final String DEBUG_TAG = "TranslatorsShowActivity";
	private String json;
	public AssetManager assMan;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		
		// Theme init
    	Utils.themeInit(this);
    	
		setContentView(R.layout.activity_translators_show);
		
		setupActionBar();
		
		String[] languagesArray = getLanguages();
		
		for (int i = 0; i < languagesArray.length; i++) {
			String[] list = getTranslatorsNames(languagesArray[i]);
			adapter.addSection(languagesArray[i], new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, list));
		}

		setListAdapter(adapter);
	}

	private void setupActionBar() {
		getActionBar().setDisplayHomeAsUpEnabled(true);
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		switch (item.getItemId()) {
		case android.R.id.home:
			NavUtils.navigateUpFromSameTask(this);
			return true;
		}
		return super.onOptionsItemSelected(item);
	}

	private String[] getLanguages() {
		assMan = getAssets();
		String[] languagesArray = { "All" };
		try {
        	InputStream in = assMan.open("languages");
        	InputStreamReader is = new InputStreamReader(in);
			StringBuilder sb = new StringBuilder();
			BufferedReader br = new BufferedReader(is);
			String read = br.readLine();
			while(read != null) {
			    sb.append(read + "_");
			    read = br.readLine();
			}
			String languages = sb.toString();
        	languagesArray = languages.split("_");
        	Log.i(DEBUG_TAG, languages);
        	
		} catch (IOException e) {
			Log.e(DEBUG_TAG, e.getMessage());
		}
		return languagesArray; 
	}
	
	private String[] getTranslatorsNames(String assetName) {
		assMan = getAssets();
        try {
        	InputStream in = assMan.open(assetName);
			InputStreamReader is = new InputStreamReader(in);
			StringBuilder sb = new StringBuilder();
			BufferedReader br = new BufferedReader(is);
			String read = br.readLine();
			while(read != null) {
			    sb.append(read);
			    read = br.readLine();
			}
			json = sb.toString();
		} catch (IOException e) {
			Log.e(DEBUG_TAG, e.getMessage());
		}        
		
		JSONArray jArray = null;
		List<String> usernames = new ArrayList<String>();
		List<String> fullnames = new ArrayList<String>();
		List<String> profileLinks = new ArrayList<String>();
		try {
			jArray = new JSONArray(json);
	        for (int i = 0; i < jArray.length(); i++) {
	        	JSONObject jo = jArray.getJSONObject(i);
				String username = jo.getString("username");
	        	usernames.add(username);
	        	String fullname = jo.getString("fullname");
				if (!username.equals(fullname)) {
					fullnames.add(" (" + fullname + ")");
				} else {
					fullnames.add("");
				}
				profileLinks.add(jo.getString("profile_link"));
	        }
		} catch (JSONException e) {
			Log.e(DEBUG_TAG, e.getMessage());
		}
		
		Iterator<String> userIter = usernames.iterator();
		Iterator<String> fullIter = fullnames.iterator();

		List<String> listEntries = new ArrayList<String>();
		while (userIter.hasNext()) {
			try {
            	listEntries.add(userIter.next() + fullIter.next());
        	} catch (NoSuchElementException e) {
        		listEntries.add("//");
        	}
        }
		return listEntries.toArray(new String[0]);
	}
	
	SectionedAdapter adapter = new SectionedAdapter() {
		protected View getHeaderView(String caption, int index, View convertView, ViewGroup parent) {
			TextView result=(TextView)convertView;
			
			if (convertView == null) {
				result=(TextView)getLayoutInflater().inflate(R.layout.activity_translators_header, null);
			}
			
			result.setText(caption);
			
			return(result);
		}
	};

}