Added bluetooth support

res/layout/device_list.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    >
+    <TextView android:id="@+id/title_paired_devices"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Dispositivos pareados"
+        android:visibility="gone"
+        android:background="#666"
+        android:textColor="#fff"
+        android:paddingLeft="5dp"
+        />
+    <ListView android:id="@+id/paired_devices"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:stackFromBottom="true"
+        android:layout_weight="1"
+        />
+    <TextView android:id="@+id/title_new_devices"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Outros dispositivos encontrados"
+        android:visibility="gone"
+        android:background="#666"
+        android:textColor="#fff"
+        android:paddingLeft="5dp"
+        />
+    <ListView android:id="@+id/new_devices"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:stackFromBottom="true"
+        android:layout_weight="2"
+        />
+    <Button android:id="@+id/button_scan"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Procurar dispositivos"
+        />
+</LinearLayout>

res/layout/device_name.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+    <TextView xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textSize="18sp"
+        android:padding="5dp"
+    />

res/menu/device_list.xml

@@ -0,0 +1,9 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:context="com.trevorshp.arduinocolor.DeviceListActivity" >
+    <item android:id="@+id/action_settings"
+        android:title="@string/action_settings"
+        android:orderInCategory="100"
+        app:showAsAction="never" />
+</menu>

res/values-w820dp/dimens.xml

@@ -0,0 +1,6 @@
+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>

res/values/dimens.xml

@@ -0,0 +1,5 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>

res/values/strings.xml

@@ -6,5 +6,8 @@
     <string name="color_picker_slider_text">Use the slider or pinch the color picker to add or subtract blue for all possible hex colors.</string>
     <string name="color_picker_slider_text_short">Use the slider to add or subtract blue, creating all possible hex colors.</string>
     <string name="button_random">Random</string>
-
+    <string name="title_activity_device_list">DeviceListActivity</string>
+    <string name="hello_world">Hello world!</string>
+    <string name="action_settings">Settings</string>
+
 </resources>

src/com/trevorshp/arduinocolor/DeviceListActivity.java

@@ -0,0 +1,178 @@
+package com.trevorshp.arduinocolor;
+
+import java.util.Set;
+
+import android.app.Activity;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.View;
+import android.view.Window;
+import android.view.View.OnClickListener;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.ListView;
+import android.widget.TextView;
+import android.widget.AdapterView.OnItemClickListener;
+
+public class DeviceListActivity extends Activity {
+    // Debugging
+    private static final String TAG = "DeviceListActivity";
+    private static final boolean D = true;
+
+    // Return Intent extra
+    public static String EXTRA_DEVICE_ADDRESS = "device_address";
+
+    // Member fields
+    private BluetoothAdapter mBtAdapter;
+    private ArrayAdapter mPairedDevicesArrayAdapter;
+    private ArrayAdapter mNewDevicesArrayAdapter;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Setup the window
+        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
+        setContentView(R.layout.device_list);
+
+        // Set result CANCELED incase the user backs out
+        setResult(Activity.RESULT_CANCELED);
+
+        // Initialize the button to perform device discovery
+        Button scanButton = (Button) findViewById(R.id.button_scan);
+        scanButton.setOnClickListener(new OnClickListener() {
+            public void onClick(View v) {
+                doDiscovery();
+                v.setVisibility(View.GONE);
+            }
+        });
+
+        // Initialize array adapters. One for already paired devices and
+        // one for newly discovered devices
+        mPairedDevicesArrayAdapter = new ArrayAdapter(this, R.layout.device_name);
+        mNewDevicesArrayAdapter = new ArrayAdapter(this, R.layout.device_name);
+
+        // Find and set up the ListView for paired devices
+        ListView pairedListView = (ListView) findViewById(R.id.paired_devices);
+        pairedListView.setAdapter(mPairedDevicesArrayAdapter);
+        pairedListView.setOnItemClickListener(mDeviceClickListener);
+
+        // Find and set up the ListView for newly discovered devices
+        ListView newDevicesListView = (ListView) findViewById(R.id.new_devices);
+        newDevicesListView.setAdapter(mNewDevicesArrayAdapter);
+        newDevicesListView.setOnItemClickListener(mDeviceClickListener);
+
+        // Register for broadcasts when a device is discovered
+        IntentFilter filter = new IntentFilter(BluetoothDevice.ACTION_FOUND);
+        this.registerReceiver(mReceiver, filter);
+
+        // Register for broadcasts when discovery has finished
+        filter = new IntentFilter(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
+        this.registerReceiver(mReceiver, filter);
+
+        // Get the local Bluetooth adapter
+        mBtAdapter = BluetoothAdapter.getDefaultAdapter();
+
+        // Get a set of currently paired devices
+        Set<BluetoothDevice> pairedDevices = mBtAdapter.getBondedDevices();
+
+        // If there are paired devices, add each one to the ArrayAdapter
+        if (pairedDevices.size() > 0) {
+            findViewById(R.id.title_paired_devices).setVisibility(View.VISIBLE);
+            for (BluetoothDevice device : pairedDevices) {
+                mPairedDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
+            }
+        } else {
+            mPairedDevicesArrayAdapter.add("Nenhum dispositivo pareado");
+        }
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+
+        // Make sure we're not doing discovery anymore
+        if (mBtAdapter != null) {
+            mBtAdapter.cancelDiscovery();
+        }
+
+        // Unregister broadcast listeners
+        this.unregisterReceiver(mReceiver);
+    }
+
+    /**
+     * Start device discover with the BluetoothAdapter
+     */
+    private void doDiscovery() {
+        if (D) Log.d(TAG, "doDiscovery()");
+
+        // Indicate scanning in the title
+        setProgressBarIndeterminateVisibility(true);
+        setTitle("Scaneando");
+
+        // Turn on sub-title for new devices
+        findViewById(R.id.title_new_devices).setVisibility(View.VISIBLE);
+
+        // If we're already discovering, stop it
+        if (mBtAdapter.isDiscovering()) {
+            mBtAdapter.cancelDiscovery();
+        }
+
+        // Request discover from BluetoothAdapter
+        mBtAdapter.startDiscovery();
+    }
+
+    // The on-click listener for all devices in the ListViews
+    private OnItemClickListener mDeviceClickListener = new OnItemClickListener() {
+        public void onItemClick(AdapterView<?> av, View v, int arg2, long arg3) {
+            // Cancel discovery because it's costly and we're about to connect
+            mBtAdapter.cancelDiscovery();
+
+            // Get the device MAC address, which is the last 17 chars in the View
+            String info = ((TextView) v).getText().toString();
+            String address = info.substring(info.length() - 17);
+
+            // Create the result Intent and include the MAC address
+            Intent intent = new Intent();
+            intent.putExtra(EXTRA_DEVICE_ADDRESS, address);
+
+            // Set result and finish this Activity
+            setResult(Activity.RESULT_OK, intent);
+            finish();
+        }
+    };
+
+    // The BroadcastReceiver that listens for discovered devices and
+    // changes the title when discovery is finished
+    private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
+        @Override
+        public void onReceive(Context context, Intent intent) {
+            String action = intent.getAction();
+
+            // When discovery finds a device
+            if (BluetoothDevice.ACTION_FOUND.equals(action)) {
+                // Get the BluetoothDevice object from the Intent
+                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+                // If it's already paired, skip it, because it's been listed already
+                if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
+                    mNewDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
+                }
+                // When discovery is finished, change the Activity title
+            } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
+                setProgressBarIndeterminateVisibility(false);
+                setTitle("Selecione o dispositivo");
+                if (mNewDevicesArrayAdapter.getCount() == 0) {
+
+                    mNewDevicesArrayAdapter.add("Nao encontrado");
+                }
+            }
+        }
+    };
+}