Add Google Maps API template

[~andy/iBeaconNav] / src / edu / ucla / iBeaconNav / Task.java

diff --git a/src/edu/ucla/iBeaconNav/Task.java b/src/edu/ucla/iBeaconNav/Task.java
new file mode 100644 (file)
index 0000000..58ef003
--- /dev/null
+++ b/src/edu/ucla/iBeaconNav/Task.java
@@ -0,0 +1,145 @@
+package edu.ucla.iBeaconNav;
+
+import java.util.List;
+import java.util.LinkedList;
+import java.util.concurrent.locks.Lock;
+import java.util.concurrent.locks.ReentrantLock;
+
+import android.app.Notification;
+import android.app.PendingIntent;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.IBinder;
+import android.os.Looper;
+import android.os.Messenger;
+import android.preference.PreferenceManager;
+
+public class Task extends Service implements Runnable
+{
+       /* Commands */
+       public static final int REGISTER   = 0;
+       public static final int POSITION   = 1;
+       public static final int CONNECT    = 2;
+       public static final int DISCONNECT = 3;
+       public static final int NOTIFY     = 4;
+
+       /* Private data */
+       private Messenger  messenger;
+       private Thread     thread;
+       private boolean    active;
+
+       /* Private methods */
+       private void tellMain(int cmd, Object value)
+       {
+               try {
+                       android.os.Message msg = android.os.Message.obtain();
+                       msg.what = cmd;
+                       msg.obj  = value;
+                       this.messenger.send(msg);
+               } catch (Exception e) {
+                       Util.debug("Task: error sending message", e);
+               }
+       }
+
+       private void notify(String text, int icon)
+       {
+               // Notify Main
+               this.tellMain(NOTIFY, text);
+
+               // Notification bar
+               //Notification  note   = new Notification(icon, null, 0);
+               //Intent        intent = new Intent(this, Main.class);
+               //PendingIntent pend   = PendingIntent.getActivity(this, 0, intent, 0);
+
+               //note.setLatestEventInfo(this, "iBeaconNav!", text, pend);
+               //this.startForeground(1, note);
+       }
+
+       private void handle(int cmd, Messenger mgr)
+       {
+               // Validate messenger
+               if (cmd != REGISTER && mgr != null && mgr != this.messenger) {
+                       Util.debug("Task: handle - invalid messenger");
+               }
+
+               // Setup communication with Main
+               if (cmd == REGISTER) {
+                       Util.debug("Task: handle - register");
+                       this.messenger = mgr;
+                       this.tellMain(REGISTER, this);
+               }
+
+               // Create client thread
+               if (cmd == CONNECT && this.thread == null) {
+                       Util.debug("Task: handle - connect");
+                       this.thread = new Thread(this);
+                       this.thread.start();
+               }
+
+               // Stop client thread
+               if (cmd == DISCONNECT && this.thread != null) {
+                       Util.debug("Task: handle - register");
+                       try {
+                               this.thread.join();
+                       } catch (Exception e) {
+                               Util.debug("Task: error stopping service", e);
+                       }
+               }
+       }
+
+       /* Public methods */
+       public boolean isRunning()
+       {
+               return this.thread != null;
+       }
+
+       /* Runnable methods */
+       @Override
+       public void run()
+       {
+               Util.debug("Task: thread run");
+
+               // Run nav algorithm
+               while (this.active) {
+                       // Read sensor data
+                       this.tellMain(POSITION, 0);
+               }
+
+               Util.debug("Task: thread exit");
+       }
+
+       /* Service Methods */
+       @Override
+       public void onCreate()
+       {
+               Util.debug("Task: onCreate");
+               super.onCreate();
+       }
+
+       @Override
+       public void onDestroy()
+       {
+               Util.debug("Task: onDestroy");
+               this.handle(DISCONNECT, null);
+       }
+
+       @Override
+       public int onStartCommand(Intent intent, int flags, int startId)
+       {
+               Util.debug("Task: onStartCommand");
+               int       rval = super.onStartCommand(intent, flags, startId);
+               int       cmd  = intent.getExtras().getInt("Command");
+               Messenger mgr  = (Messenger)intent.getExtras().get("Messenger");
+               this.handle(cmd, mgr);
+               return rval;
+       }
+
+       @Override
+       public IBinder onBind(Intent intent)
+       {
+               Util.debug("Task: onBind");
+               return null;
+       }
+}