Synnefo » Pithos Android Client

/**

 * 

 */

package com.rackspacecloud.android;

import java.util.ArrayList;

import com.rackspace.cloud.servers.api.client.Server;

import com.rackspace.cloud.servers.api.client.ServerManager;

import android.app.ListActivity;

import android.content.Intent;

import android.os.AsyncTask;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

import android.widget.ImageView;

import android.widget.ListView;

import android.widget.TextView;

/**

 * @author mike

 *

 */

public class ListServersActivity extends ListActivity {

        private Server[] servers;

        @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        loadServers();        

    }

    protected void onListItemClick(ListView l, View v, int position, long id) {        

            Intent viewIntent = new Intent(this, ViewServerActivity.class);

            viewIntent.putExtra("server", servers[position]);

                startActivityForResult(viewIntent, 55); // arbitrary number; never used again

    }

    private void loadServers() {

            displayLoadingCell();

            new LoadServersTask().execute((Void[]) null);

    }

    private void setServerList(ArrayList<Server> servers) {

            String[] serverNames = new String[servers.size()];

            this.servers = new Server[servers.size()];

                if (servers != null) {

                        for (int i = 0; i < servers.size(); i++) {

                                Server server = servers.get(i);

                                this.servers[i] = server;

                                serverNames[i] = server.getName();

                        }

                }

                // TODO: throws ClassCastException with empty list

                if (serverNames.length == 0) {

                        displayNoServersCell();

                } else {

                        getListView().setDividerHeight(1); // restore divider linesan 

                        //setListAdapter(new ArrayAdapter<String>(this, R.layout.listservercell, R.id.label, serverNames));

                        setListAdapter(new ServerAdapter());

                }

    }

    private void displayLoadingCell() {

            String a[] = new String[1];

            a[0] = "Loading...";

        setListAdapter(new ArrayAdapter<String>(this, R.layout.loadingcell, R.id.loading_label, a));

        getListView().setTextFilterEnabled(true);

        getListView().setDividerHeight(0); // hide the dividers so it won't look like a list row

        getListView().setItemsCanFocus(false);

        //getListView().setClickable(false); // TODO: so it will never be highlighted on touch

    }

    private void displayNoServersCell() {

            String a[] = new String[1];

            a[0] = "No Servers";

        setListAdapter(new ArrayAdapter<String>(this, R.layout.noserverscell, R.id.no_servers_label, a));

        getListView().setTextFilterEnabled(true);

        getListView().setDividerHeight(0); // hide the dividers so it won't look like a list row

        //getListView().setClickable(false); // so it will never be highlighted on touch

        getListView().setItemsCanFocus(false);

    }

    private class LoadServersTask extends AsyncTask<Void, Void, ArrayList<Server>> {

                @Override

                protected ArrayList<Server> doInBackground(Void... arg0) {

                        return (new ServerManager()).createList(true);

                }

                @Override

                protected void onPostExecute(ArrayList<Server> result) {

                        setServerList(result);

                }

    }

    @Override 

    public boolean onCreateOptionsMenu(Menu menu) {

                super.onCreateOptionsMenu(menu);

                MenuInflater inflater = getMenuInflater();

                inflater.inflate(R.menu.servers_list_menu, menu);

                return true;

        } 

    @Override 

    public boolean onOptionsItemSelected(MenuItem item) {

                switch (item.getItemId()) {

                case R.id.add_server:

                        startActivityForResult(new Intent(this, AddServerActivity.class), 56); // arbitrary number; never used again

                        return true;

                case R.id.refresh:

                        loadServers();

                return true;

                }

                return false;

        } 

        //*/

        class ServerAdapter extends ArrayAdapter<Server> {

                ServerAdapter() {

                        super(ListServersActivity.this, R.layout.listservercell, servers);

                }

                public View getView(int position, View convertView, ViewGroup parent) {

                        Server server = servers[position];

                        LayoutInflater inflater = getLayoutInflater();

                        View row = inflater.inflate(R.layout.listservercell, parent, false);

                        TextView label = (TextView) row.findViewById(R.id.label);

                        label.setText(server.getName());

                        TextView sublabel = (TextView) row.findViewById(R.id.sublabel);

                        sublabel.setText(server.getFlavor().getName() + " - " + server.getImage().getName());

                        ImageView icon = (ImageView) row.findViewById(R.id.icon);

                        icon.setImageResource(server.getImage().iconResourceId());

                        return(row);

                }

        }

        @Override

        public void onActivityResult(int requestCode, int resultCode, Intent data) {

          super.onActivityResult(requestCode, resultCode, data);

          if (resultCode == RESULT_OK) {          

                  // a sub-activity kicked back, so we want to refresh the server list

                  loadServers();

          }

        }        

}