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The source code is released under:
GNU General Public License
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/** * Copyright (c) 2012 The University of Nottingham * // ww w. j a v a 2s. co m * This file is part of ubihelper * * ubihelper is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * ubihelper is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with ubihelper. If not, see <http://www.gnu.org/licenses/>. * * @author Chris Greenhalgh (cmg@cs.nott.ac.uk), The University of Nottingham */ package uk.ac.horizon.ubihelper.ui; import java.util.Collections; import java.util.TreeSet; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import uk.ac.horizon.ubihelper.R; import uk.ac.horizon.ubihelper.channel.ChannelManager; import uk.ac.horizon.ubihelper.service.BroadcastIntentSubscription; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.AdapterView.OnItemClickListener; /** * @author cmg * */ public class ChannelListActivity extends ChannelViewActivity { private ListView listView; private ArrayAdapter<String> listAdapter; public static Intent getStartActivityIntent(Context context) { Intent i = new Intent(context, ChannelListActivity.class); i.putExtra(BroadcastIntentSubscription.EXTRA_NAME, ChannelManager.CHANNEL_CHANNELS); return i; } public static Intent getStartActivityIntent( Context context, String name) { Intent i = new Intent(context, ChannelListActivity.class); i.putExtra(BroadcastIntentSubscription.EXTRA_NAME, name); return i; } /* (non-Javadoc) * @see android.app.Activity#onCreate(android.os.Bundle) */ @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setTitle(getIntent().getExtras().getString(BroadcastIntentSubscription.EXTRA_NAME)); setContentView(R.layout.channel_list); listView = (ListView)findViewById(R.id.channel_list); listAdapter = new ArrayAdapter<String>(this, R.layout.channel_list_item); listView.setAdapter(listAdapter); listView.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View view, int position, long id) { if (position>=0 && position<=listAdapter.getCount()) { String name = listAdapter.getItem(position); if (name.equals("peers") || name.endsWith("/peers")) { Intent i = ChannelPeerListActivity.getStartActivityIntent(ChannelListActivity.this, name); startActivity(i); } else if (name.equals("channels") || name.endsWith("/channels")) { Intent i = ChannelListActivity.getStartActivityIntent(ChannelListActivity.this, name); startActivity(i); } else { Intent i = ChannelValueActivity.getStartActivityIntent(ChannelListActivity.this, name); startActivity(i); } } } }); } @Override protected void refresh(Intent intent) { listAdapter.clear(); if (intent!=null) { String value= intent.getExtras().getString(BroadcastIntentSubscription.EXTRA_VALUE); if (value!=null) { try { JSONObject val = new JSONObject(value); JSONArray names = val.getJSONArray(ChannelManager.KEY_NAMES); TreeSet<String> nameset = new TreeSet<String>(); for (int i=0; i<names.length(); i++) nameset.add(names.getString(i)); for (String name : nameset) listAdapter.add(name); } catch (JSONException e) { Log.w(TAG,"Parsing channels value "+value+": "+e); } } } } }