add new Bluetooth sample app
diff --git a/build/sdk.atree b/build/sdk.atree
index b58aba8..88e72a9 100644
--- a/build/sdk.atree
+++ b/build/sdk.atree
@@ -73,7 +73,7 @@
# samples
development/apps/GestureBuilder platforms/${PLATFORM_NAME}/samples/GestureBuilder
-development/samples/HelloActivity platforms/${PLATFORM_NAME}/samples/HelloActivity
+development/samples/BluetoothChat platforms/${PLATFORM_NAME}/samples/BluetoothChat
development/samples/Home platforms/${PLATFORM_NAME}/samples/Home
development/samples/LunarLander platforms/${PLATFORM_NAME}/samples/LunarLander
development/samples/NotePad platforms/${PLATFORM_NAME}/samples/NotePad
diff --git a/samples/BluetoothChat/Android.mk b/samples/BluetoothChat/Android.mk
new file mode 100644
index 0000000..f1b3a27
--- /dev/null
+++ b/samples/BluetoothChat/Android.mk
@@ -0,0 +1,16 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_TAGS := samples
+
+# Only compile source java files in this apk.
+LOCAL_SRC_FILES := $(call all-java-files-under, src)
+
+LOCAL_PACKAGE_NAME := BluetoothChat
+
+LOCAL_SDK_VERSION := current
+
+include $(BUILD_PACKAGE)
+
+# Use the following include to make our test apk.
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/samples/BluetoothChat/AndroidManifest.xml b/samples/BluetoothChat/AndroidManifest.xml
new file mode 100644
index 0000000..44f9911
--- /dev/null
+++ b/samples/BluetoothChat/AndroidManifest.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="com.example.android.BluetoothChat"
+ android:versionCode="1"
+ android:versionName="1.0">
+ <uses-sdk minSdkVersion="5" />
+ <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
+ <uses-permission android:name="android.permission.BLUETOOTH" />
+
+ <application android:label="@string/app_name"
+ android:icon="@drawable/app_icon" >
+ <activity android:name=".BluetoothChat"
+ android:label="@string/app_name"
+ android:configChanges="orientation|keyboardHidden">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+ <activity android:name=".DeviceListActivity"
+ android:label="@string/select_device"
+ android:theme="@android:style/Theme.Dialog"
+ android:configChanges="orientation|keyboardHidden" />
+ </application>
+</manifest>
diff --git a/samples/BluetoothChat/_index.html b/samples/BluetoothChat/_index.html
new file mode 100644
index 0000000..588cccd
--- /dev/null
+++ b/samples/BluetoothChat/_index.html
@@ -0,0 +1,14 @@
+<p>This application allows two Android devices to carry out
+two-way text chat over Bluetooth. It demonstrates all the fundamental Bluetooth
+API capabilites, such as:</p>
+<ul>
+ <li>Scanning for other Bluetooth devices</li>
+ <li>Querying the local Bluetooth adapter for paired Bluetooth devices</li>
+ <li>Establishing RFCOMM channels/sockets</li>
+ <li>Connecting to a remote device</li>
+ <li>Transfering data over Bluetooth</li>
+</ul>
+
+
+<img alt="" src="../images/BluetoothChat1.png" />
+<img alt="" src="../images/BluetoothChat2.png" />
\ No newline at end of file
diff --git a/samples/BluetoothChat/res/drawable-hdpi/app_icon.png b/samples/BluetoothChat/res/drawable-hdpi/app_icon.png
new file mode 100644
index 0000000..8836ff6
--- /dev/null
+++ b/samples/BluetoothChat/res/drawable-hdpi/app_icon.png
Binary files differ
diff --git a/samples/BluetoothChat/res/drawable/app_icon.png b/samples/BluetoothChat/res/drawable/app_icon.png
new file mode 100644
index 0000000..d3e09a5
--- /dev/null
+++ b/samples/BluetoothChat/res/drawable/app_icon.png
Binary files differ
diff --git a/samples/BluetoothChat/res/layout/custom_title.xml b/samples/BluetoothChat/res/layout/custom_title.xml
new file mode 100644
index 0000000..6b7dca5
--- /dev/null
+++ b/samples/BluetoothChat/res/layout/custom_title.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ android:layout_width="fill_parent"
+ android:layout_height="fill_parent"
+ android:gravity="center_vertical"
+ >
+ <TextView android:id="@+id/title_left_text"
+ android:layout_alignParentLeft="true"
+ android:ellipsize="end"
+ android:singleLine="true"
+ style="?android:attr/windowTitleStyle"
+ android:layout_width="wrap_content"
+ android:layout_height="fill_parent"
+ android:layout_weight="1"
+ />
+ <TextView android:id="@+id/title_right_text"
+ android:layout_alignParentRight="true"
+ android:ellipsize="end"
+ android:singleLine="true"
+ android:layout_width="wrap_content"
+ android:layout_height="fill_parent"
+ android:textColor="#fff"
+ android:layout_weight="1"
+ />
+</RelativeLayout>
\ No newline at end of file
diff --git a/samples/BluetoothChat/res/layout/device_list.xml b/samples/BluetoothChat/res/layout/device_list.xml
new file mode 100644
index 0000000..e7b84b9
--- /dev/null
+++ b/samples/BluetoothChat/res/layout/device_list.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ android:orientation="vertical"
+ android:layout_width="fill_parent"
+ android:layout_height="fill_parent"
+ >
+ <TextView android:id="@+id/title_paired_devices"
+ android:layout_width="fill_parent"
+ android:layout_height="wrap_content"
+ android:text="@string/title_paired_devices"
+ android:visibility="gone"
+ android:background="#666"
+ android:textColor="#fff"
+ android:paddingLeft="5dp"
+ />
+ <ListView android:id="@+id/paired_devices"
+ android:layout_width="fill_parent"
+ android:layout_height="wrap_content"
+ android:stackFromBottom="true"
+ android:layout_weight="1"
+ />
+ <TextView android:id="@+id/title_new_devices"
+ android:layout_width="fill_parent"
+ android:layout_height="wrap_content"
+ android:text="@string/title_other_devices"
+ android:visibility="gone"
+ android:background="#666"
+ android:textColor="#fff"
+ android:paddingLeft="5dp"
+ />
+ <ListView android:id="@+id/new_devices"
+ android:layout_width="fill_parent"
+ android:layout_height="wrap_content"
+ android:stackFromBottom="true"
+ android:layout_weight="2"
+ />
+ <Button android:id="@+id/button_scan"
+ android:layout_width="fill_parent"
+ android:layout_height="wrap_content"
+ android:text="@string/button_scan"
+ />
+</LinearLayout>
\ No newline at end of file
diff --git a/samples/BluetoothChat/res/layout/device_name.xml b/samples/BluetoothChat/res/layout/device_name.xml
new file mode 100644
index 0000000..c693f3a
--- /dev/null
+++ b/samples/BluetoothChat/res/layout/device_name.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+ android:layout_width="fill_parent"
+ android:layout_height="wrap_content"
+ android:textSize="18sp"
+ android:padding="5dp"
+/>
\ No newline at end of file
diff --git a/samples/BluetoothChat/res/layout/main.xml b/samples/BluetoothChat/res/layout/main.xml
new file mode 100644
index 0000000..307f5a5
--- /dev/null
+++ b/samples/BluetoothChat/res/layout/main.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+ android:orientation="vertical"
+ android:layout_width="fill_parent"
+ android:layout_height="fill_parent"
+ >
+ <ListView android:id="@+id/in"
+ android:layout_width="fill_parent"
+ android:layout_height="fill_parent"
+ android:stackFromBottom="true"
+ android:transcriptMode="alwaysScroll"
+ android:layout_weight="1"
+ />
+ <LinearLayout
+ android:orientation="horizontal"
+ android:layout_width="fill_parent"
+ android:layout_height="wrap_content"
+ >
+ <EditText android:id="@+id/edit_text_out"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_weight="1"
+ android:layout_gravity="bottom"
+ />
+ <Button android:id="@+id/button_send"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="@string/send"
+ />
+ </LinearLayout>
+</LinearLayout>
diff --git a/samples/BluetoothChat/res/layout/message.xml b/samples/BluetoothChat/res/layout/message.xml
new file mode 100644
index 0000000..c693f3a
--- /dev/null
+++ b/samples/BluetoothChat/res/layout/message.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+ android:layout_width="fill_parent"
+ android:layout_height="wrap_content"
+ android:textSize="18sp"
+ android:padding="5dp"
+/>
\ No newline at end of file
diff --git a/samples/BluetoothChat/res/menu/option_menu.xml b/samples/BluetoothChat/res/menu/option_menu.xml
new file mode 100644
index 0000000..46df043
--- /dev/null
+++ b/samples/BluetoothChat/res/menu/option_menu.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+ <item android:id="@+id/scan"
+ android:icon="@android:drawable/ic_menu_search"
+ android:title="@string/connect" />
+ <item android:id="@+id/discoverable"
+ android:icon="@android:drawable/ic_menu_mylocation"
+ android:title="@string/discoverable" />
+</menu>
diff --git a/samples/BluetoothChat/res/values/strings.xml b/samples/BluetoothChat/res/values/strings.xml
new file mode 100644
index 0000000..1c47676
--- /dev/null
+++ b/samples/BluetoothChat/res/values/strings.xml
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+ <string name="app_name">Bluetooth Chat</string>
+
+ <!-- BluetoothChat -->
+ <string name="send">Send</string>
+ <string name="not_connected">You are not connected to a device</string>
+ <string name="bt_not_enabled_leaving">Bluetooth was not enabled. Leaving Bluetooth Chat.</string>
+ <string name="title_connecting">connecting...</string>
+ <string name="title_connected_to">connected: </string>
+ <string name="title_not_connected">not connected</string>
+
+ <!-- DeviceListActivity -->
+ <string name="scanning">scanning for devices...</string>
+ <string name="select_device">select a device to connect</string>
+ <string name="none_paired">No devices have been paired</string>
+ <string name="none_found">No devices found</string>
+ <string name="title_paired_devices">Paired Devices</string>
+ <string name="title_other_devices">Other Available Devices</string>
+ <string name="button_scan">Scan for devices</string>
+
+ <!-- Options Menu -->
+ <string name="connect">Connect a device</string>
+ <string name="discoverable">Make discoverable</string>
+</resources>
diff --git a/samples/BluetoothChat/src/com/example/android/BluetoothChat/BluetoothChat.java b/samples/BluetoothChat/src/com/example/android/BluetoothChat/BluetoothChat.java
new file mode 100644
index 0000000..e4b9d52
--- /dev/null
+++ b/samples/BluetoothChat/src/com/example/android/BluetoothChat/BluetoothChat.java
@@ -0,0 +1,330 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.BluetoothChat;
+
+import android.app.Activity;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.Window;
+import android.view.View.OnClickListener;
+import android.view.inputmethod.EditorInfo;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ListView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+/**
+ * This is the main Activity that displays the current chat session.
+ */
+public class BluetoothChat extends Activity {
+ // Debugging
+ private static final String TAG = "BluetoothChat";
+ private static final boolean D = true;
+
+ // Message types sent from the BluetoothChatService Handler
+ public static final int MESSAGE_STATE_CHANGE = 1;
+ public static final int MESSAGE_READ = 2;
+ public static final int MESSAGE_OUTGOING_STRING = 3;
+ public static final int MESSAGE_DEVICE_NAME = 4;
+ public static final int MESSAGE_TOAST = 5;
+
+ // Key names received from the BluetoothChatService Handler
+ public static final String DEVICE_NAME = "device_name";
+ public static final String TOAST = "toast";
+ public static final String MESSAGE_WRITE = "message_write";
+
+ // Intent request codes
+ private static final int REQUEST_CONNECT_DEVICE = 1;
+ private static final int REQUEST_ENABLE_BT = 2;
+
+ // Layout Views
+ private TextView mTitle;
+ private ListView mConversationView;
+ private EditText mOutEditText;
+ private Button mSendButton;
+
+ // Name of the connected device
+ private String mConnectedDeviceName = null;
+ // Array adapter for the conversation thread
+ private ArrayAdapter<String> mConversationArrayAdapter;
+ // String buffer for outgoing messages
+ private StringBuffer mOutStringBuffer;
+ // Local Bluetooth adapter
+ private BluetoothAdapter mBluetoothAdapter = null;
+ // Member object for the chat services
+ private BluetoothChatService mChatService = null;
+
+
+ @Override
+ public void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ if(D) Log.e(TAG, "+++ ON CREATE +++");
+
+ // Set up the window layout
+ requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
+ setContentView(R.layout.main);
+ getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.custom_title);
+
+ // Set up the custom title
+ mTitle = (TextView) findViewById(R.id.title_left_text);
+ mTitle.setText(R.string.app_name);
+ mTitle = (TextView) findViewById(R.id.title_right_text);
+
+ // Get local Bluetooth adapter
+ mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
+
+ // If the adapter is null, then Bluetooth is not supported
+ if (mBluetoothAdapter == null) {
+ Toast.makeText(this, "Bluetooth is not available", Toast.LENGTH_LONG).show();
+ finish();
+ return;
+ }
+ }
+
+ @Override
+ public void onStart() {
+ super.onStart();
+ if(D) Log.e(TAG, "++ ON START ++");
+
+ // If BT is not on, request that it be enabled.
+ // setupChat() will then be called during onActivityResult
+ if (!mBluetoothAdapter.isEnabled()) {
+ Intent enableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
+ startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
+ // Otherwise, setup the chat session
+ } else {
+ if (mChatService == null) setupChat();
+ }
+ }
+
+ @Override
+ public synchronized void onResume() {
+ super.onResume();
+ if(D) Log.e(TAG, "+ ON RESUME +");
+
+ // Performing this check in onResume() covers the case in which BT was
+ // not enabled during onStart(), so we were paused to enable it...
+ // onResume() will be called when ACTION_REQUEST_ENABLE activity returns.
+ if (mChatService != null) {
+ // Only if the state is STATE_NONE, do we know that we haven't started already
+ if (mChatService.getState() == BluetoothChatService.STATE_NONE) {
+ // Start the Bluetooth chat services
+ mChatService.start();
+ }
+ }
+ }
+
+ private void setupChat() {
+ Log.d(TAG, "setupChat()");
+
+ // Initialize the array adapter for the conversation thread
+ mConversationArrayAdapter = new ArrayAdapter<String>(this, R.layout.message);
+ mConversationView = (ListView) findViewById(R.id.in);
+ mConversationView.setAdapter(mConversationArrayAdapter);
+
+ // Initialize the compose field with a listener for the return key
+ mOutEditText = (EditText) findViewById(R.id.edit_text_out);
+ mOutEditText.setOnEditorActionListener(mWriteListener);
+
+ // Initialize the send button with a listener that for click events
+ mSendButton = (Button) findViewById(R.id.button_send);
+ mSendButton.setOnClickListener(new OnClickListener() {
+ public void onClick(View v) {
+ // Send a message using content of the edit text widget
+ TextView view = (TextView) findViewById(R.id.edit_text_out);
+ String message = view.getText().toString();
+ sendMessage(message);
+ }
+ });
+
+ // Initialize the BluetoothChatService to perform bluetooth connections
+ mChatService = new BluetoothChatService(this, mHandler);
+
+ // Initialize the buffer for outgoing messages
+ mOutStringBuffer = new StringBuffer("");
+ }
+
+ @Override
+ public synchronized void onPause() {
+ super.onPause();
+ if(D) Log.e(TAG, "- ON PAUSE -");
+ }
+
+ @Override
+ public void onStop() {
+ super.onStop();
+ if(D) Log.e(TAG, "-- ON STOP --");
+ }
+
+ @Override
+ public void onDestroy() {
+ super.onDestroy();
+ // Stop the Bluetooth chat services
+ if (mChatService != null) mChatService.stop();
+ if(D) Log.e(TAG, "--- ON DESTROY ---");
+ }
+
+ private void ensureDiscoverable() {
+ if(D) Log.d(TAG, "ensure discoverable");
+ if (mBluetoothAdapter.getScanMode() != BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {
+ Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
+ discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300); // set max duration
+ startActivity(discoverableIntent);
+ }
+ }
+
+ /**
+ * Sends a message.
+ * @param message A string of text to send.
+ */
+ private void sendMessage(String message) {
+ // Check that we're actually connected before trying anything
+ if (mChatService.getState() != BluetoothChatService.STATE_CONNECTED) {
+ Toast.makeText(this, R.string.not_connected, Toast.LENGTH_SHORT).show();
+ return;
+ }
+
+ // Check that there's actually something to send
+ if (message.length() > 0) {
+ // Get the message bytes and tell the BluetoothChatService to write
+ byte[] send = message.getBytes();
+ mChatService.write(send);
+
+ // Reset out string buffer to zero and clear the edit text field
+ mOutStringBuffer.setLength(0);
+ mOutEditText.setText(mOutStringBuffer);
+ }
+ }
+
+ // The action listener for the EditText widget, to listen for the return key
+ private TextView.OnEditorActionListener mWriteListener = new TextView.OnEditorActionListener() {
+ public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
+ // If the action is a key-up event on the return key, send the message
+ if (actionId == EditorInfo.IME_NULL && event.getAction() == KeyEvent.ACTION_UP) {
+ String message = view.getText().toString();
+ sendMessage(message);
+ }
+ if(D) Log.i(TAG, "END onEditorAction");
+ return true;
+ }
+ };
+
+ // The Handler that gets information back from the BluetoothChatService
+ private final Handler mHandler = new Handler() {
+ @Override
+ public void handleMessage(Message msg) {
+ switch (msg.what) {
+ case MESSAGE_STATE_CHANGE:
+ if(D) Log.i(TAG, "MESSAGE_STATE_CHANGE: " + msg.arg1);
+ switch (msg.arg1) {
+ case BluetoothChatService.STATE_CONNECTED:
+ mTitle.setText(R.string.title_connected_to);
+ mTitle.append(mConnectedDeviceName);
+ mConversationArrayAdapter.clear();
+ break;
+ case BluetoothChatService.STATE_CONNECTING:
+ mTitle.setText(R.string.title_connecting);
+ break;
+ case BluetoothChatService.STATE_LISTEN:
+ case BluetoothChatService.STATE_NONE:
+ mTitle.setText(R.string.title_not_connected);
+ break;
+ }
+ break;
+ case MESSAGE_OUTGOING_STRING:
+ mConversationArrayAdapter.add("Me: " + new String(msg.getData().getByteArray(MESSAGE_WRITE)).trim());
+ mOutEditText.setText(mOutStringBuffer);
+ break;
+ case MESSAGE_READ:
+ byte[] buf = (byte[]) msg.obj;
+ mConversationArrayAdapter.add(mConnectedDeviceName+": " + new String(buf).trim());
+ break;
+ case MESSAGE_DEVICE_NAME:
+ mConnectedDeviceName = msg.getData().getString(DEVICE_NAME); // save the connected device's name
+ Toast.makeText(getApplicationContext(), "Connected to " + mConnectedDeviceName, Toast.LENGTH_SHORT).show();
+ break;
+ case MESSAGE_TOAST:
+ Toast.makeText(getApplicationContext(), msg.getData().getString(TOAST), Toast.LENGTH_SHORT).show();
+ break;
+ }
+ }
+ };
+
+ public void onActivityResult(int requestCode, int resultCode, Intent data) {
+ if(D) Log.d(TAG, "onActivityResult " + resultCode);
+ switch (requestCode) {
+ case REQUEST_CONNECT_DEVICE:
+ // When DeviceListActivity returns with a device to connect
+ if (resultCode == Activity.RESULT_OK) {
+ // Get the device MAC address
+ String address = data.getExtras().getString(DeviceListActivity.EXTRA_DEVICE_ADDRESS);
+ // Get the BLuetoothDevice object
+ BluetoothDevice device = mBluetoothAdapter.getRemoteDevice(address);
+ // Attempt to connect to the device
+ mChatService.connect(device);
+ }
+ break;
+ case REQUEST_ENABLE_BT:
+ // When the request to enable Bluetooth returns
+ if (resultCode == Activity.RESULT_OK) {
+ // Bluetooth is now enabled, so set up a chat session
+ setupChat();
+ } else {
+ // User did not enable Bluetooth or an error occured
+ Log.d(TAG, "BT not enabled");
+ Toast.makeText(this, R.string.bt_not_enabled_leaving, Toast.LENGTH_SHORT).show();
+ finish();
+ }
+ }
+ }
+
+ @Override
+ public boolean onCreateOptionsMenu(Menu menu) {
+ MenuInflater inflater = getMenuInflater();
+ inflater.inflate(R.menu.option_menu, menu);
+ return true;
+ }
+
+ @Override
+ public boolean onOptionsItemSelected(MenuItem item) {
+ switch (item.getItemId()) {
+ case R.id.scan:
+ // Launch the DeviceListActivity to see devices and do scan
+ Intent serverIntent = new Intent(this, DeviceListActivity.class);
+ startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
+ return true;
+ case R.id.discoverable:
+ // Ensure this device is discoverable by others
+ ensureDiscoverable();
+ return true;
+ }
+ return false;
+ }
+
+}
\ No newline at end of file
diff --git a/samples/BluetoothChat/src/com/example/android/BluetoothChat/BluetoothChatService.java b/samples/BluetoothChat/src/com/example/android/BluetoothChat/BluetoothChatService.java
new file mode 100644
index 0000000..8d29c6a
--- /dev/null
+++ b/samples/BluetoothChat/src/com/example/android/BluetoothChat/BluetoothChatService.java
@@ -0,0 +1,439 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.BluetoothChat;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.UUID;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothServerSocket;
+import android.bluetooth.BluetoothSocket;
+import android.content.Context;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.util.Log;
+
+/**
+ * This class does all the work for setting up and managing Bluetooth
+ * connections with other devices. It has a thread that listens for
+ * incoming connections, a thread for connecting with a device, and a
+ * thread for performing data transmissions when connected.
+ */
+public class BluetoothChatService {
+ // Debugging
+ private static final String TAG = "BluetoothChatService";
+ private static final boolean D = true;
+
+ // Name for the SDP record when creating server socket
+ private static final String NAME = "BluetoothChat";
+
+ // Unique UUID for this application
+ private static final UUID MY_UUID = UUID.fromString("fa87c0d0-afac-11de-8a39-0800200c9a66");
+
+ // Member fields
+ private final BluetoothAdapter mAdapter;
+ private final Handler mHandler;
+ private AcceptThread mAcceptThread;
+ private ConnectThread mConnectThread;
+ private ConnectedThread mConnectedThread;
+ private int mState;
+
+ // Constants that indicate the current connection state
+ public static final int STATE_NONE = 0; // we're doing nothing. only valid during setup/shutdown
+ public static final int STATE_LISTEN = 1; // now listening for incoming connections
+ public static final int STATE_CONNECTING = 2; // now initiating an outgoing connection
+ public static final int STATE_CONNECTED = 3; // now connected to a remote device
+
+ /**
+ * Constructor. Prepares a new BluetoothChat session.
+ * @param context The UI Activity Context
+ * @param handler A Handler to send messages back to the UI Activity
+ */
+ public BluetoothChatService(Context context, Handler handler) {
+ mAdapter = BluetoothAdapter.getDefaultAdapter();
+ mState = STATE_NONE;
+ mHandler = handler;
+ }
+
+ /**
+ * Set the current state of the chat connection
+ * @param state An integer defining the current connection state
+ */
+ private synchronized void setState(int state) {
+ if (D) Log.d(TAG, "setState() " + mState + " -> " + state);
+ mState = state;
+
+ // Give the new state to the Handler so the UI Activity can update
+ mHandler.obtainMessage(BluetoothChat.MESSAGE_STATE_CHANGE, state, -1).sendToTarget();
+ }
+
+ /**
+ * Return the current connection state. */
+ public synchronized int getState() {
+ return mState;
+ }
+
+ /**
+ * Start the chat service. Specifically start AcceptThread to begin a
+ * session in listening (server) mode. Called by the Activity onResume() */
+ public synchronized void start() {
+ if (D) Log.d(TAG, "start");
+
+ // Cancel any thread attempting to make a connection
+ if (mConnectThread != null) {mConnectThread.cancel(); mConnectThread = null;}
+
+ // Cancel any thread currently running a connection
+ if (mConnectedThread != null) {mConnectedThread.cancel(); mConnectedThread = null;}
+
+ // Start the thread to listen on a BluetoothServerSocket
+ if (mAcceptThread == null) {
+ mAcceptThread = new AcceptThread();
+ mAcceptThread.start();
+ }
+ setState(STATE_LISTEN);
+ }
+
+ /**
+ * Start the ConnectThread to initiate a connection to a remote device.
+ * @param device The BluetoothDevice to connect
+ */
+ public synchronized void connect(BluetoothDevice device) {
+ if (D) Log.d(TAG, "connect to: " + device);
+
+ // Cancel any thread attempting to make a connection
+ if (mState == STATE_CONNECTING) {
+ if (mConnectThread != null) {mConnectThread.cancel(); mConnectThread = null;}
+ }
+
+ // Cancel any thread currently running a connection
+ if (mConnectedThread != null) {mConnectedThread.cancel(); mConnectedThread = null;}
+
+ // Start the thread to connect with the given device
+ mConnectThread = new ConnectThread(device);
+ mConnectThread.start();
+ setState(STATE_CONNECTING);
+ }
+
+ /**
+ * Start the ConnectedThread to begin managing a Bluetooth connection
+ * @param socket The BluetoothSocket on which the connection was made
+ * @param device The BluetoothDevice that has been connected
+ */
+ public synchronized void connected(BluetoothSocket socket, BluetoothDevice device) {
+ if (D) Log.d(TAG, "connected");
+
+ // Cancel the thread that completed the connection
+ if (mConnectThread != null) {mConnectThread.cancel(); mConnectThread = null;}
+
+ // Cancel any thread currently running a connection
+ if (mConnectedThread != null) {mConnectedThread.cancel(); mConnectedThread = null;}
+
+ // Cancel the accept thread because we only want to connect to one device
+ if (mAcceptThread != null) {mAcceptThread.cancel(); mAcceptThread = null;}
+
+ // Start the thread to manage the connection and perform transmissions
+ mConnectedThread = new ConnectedThread(socket);
+ mConnectedThread.start();
+
+ // Send the name of the connected device back to the UI Activity
+ Message msg = mHandler.obtainMessage(BluetoothChat.MESSAGE_DEVICE_NAME);
+ Bundle bundle = new Bundle();
+ bundle.putString(BluetoothChat.DEVICE_NAME, device.getName());
+ msg.setData(bundle);
+ mHandler.sendMessage(msg);
+
+ setState(STATE_CONNECTED);
+ }
+
+ /**
+ * Stop all threads
+ */
+ public synchronized void stop() {
+ if (D) Log.d(TAG, "stop");
+ if (mConnectThread != null) {mConnectThread.cancel(); mConnectThread = null;}
+ if (mConnectedThread != null) {mConnectedThread.cancel(); mConnectedThread = null;}
+ if (mAcceptThread != null) {mAcceptThread.cancel(); mAcceptThread = null;}
+ setState(STATE_NONE);
+ }
+
+ /**
+ * Write to the ConnectedThread in an unsynchronized manner
+ * @param out The bytes to write
+ * @see ConnectedThread#write(byte[])
+ */
+ public void write(byte[] out) {
+ // Create temporary object
+ ConnectedThread r;
+ // Synchronize a copy of the ConnectedThread
+ synchronized (this) {
+ if (mState != STATE_CONNECTED) return;
+ r = mConnectedThread;
+ }
+ // Perform the write unsynchronized
+ r.write(out);
+ }
+
+ /**
+ * Indicate that the connection attempt failed and notify the UI Activity.
+ */
+ private void connectionFailed() {
+ setState(STATE_LISTEN);
+
+ // Send a failure message back to the Activity
+ Message msg = mHandler.obtainMessage(BluetoothChat.MESSAGE_TOAST);
+ Bundle bundle = new Bundle();
+ bundle.putString(BluetoothChat.TOAST, "Unable to connect device");
+ msg.setData(bundle);
+ mHandler.sendMessage(msg);
+ }
+
+ /**
+ * Indicate that the connection was lost and notify the UI Activity.
+ */
+ private void connectionLost() {
+ setState(STATE_LISTEN);
+
+ // Send a failure message back to the Activity
+ Message msg = mHandler.obtainMessage(BluetoothChat.MESSAGE_TOAST);
+ Bundle bundle = new Bundle();
+ bundle.putString(BluetoothChat.TOAST, "Device connection was lost");
+ msg.setData(bundle);
+ mHandler.sendMessage(msg);
+ }
+
+ /**
+ * This thread runs while listening for incoming connections. It behaves
+ * like a server-side client. It runs until a connection is accepted
+ * (or until cancelled).
+ */
+ private class AcceptThread extends Thread {
+ // The local server socket
+ private final BluetoothServerSocket mmServerSocket;
+
+ public AcceptThread() {
+ BluetoothServerSocket tmp = null;
+
+ // Create a new listening server socket
+ try {
+ tmp = mAdapter.listenUsingRfcommWithServiceRecord(NAME, MY_UUID);
+ } catch (IOException e) {
+ Log.e(TAG, "listen() failed", e);
+ }
+ mmServerSocket = tmp;
+ }
+
+ public void run() {
+ if (D) Log.d(TAG, "BEGIN mAcceptThread" + this);
+ setName("AcceptThread");
+ BluetoothSocket socket = null;
+
+ // Listen to the server socket if we're not connected
+ while (mState != STATE_CONNECTED) {
+ try {
+ // This is a blocking call and will only return on a
+ // successful connection or an exception
+ socket = mmServerSocket.accept();
+ } catch (IOException e) {
+ Log.e(TAG, "accept() failed", e);
+ break;
+ }
+
+ // If a connection was accepted
+ if (socket != null) {
+ synchronized (BluetoothChatService.this) {
+ switch (mState) {
+ case STATE_LISTEN:
+ case STATE_CONNECTING:
+ // Situation normal. Start the connected thread.
+ connected(socket, socket.getRemoteDevice());
+ break;
+ case STATE_NONE:
+ case STATE_CONNECTED:
+ // Either not ready or already connected. Terminate new socket.
+ try {
+ socket.close();
+ } catch (IOException e) {
+ Log.e(TAG, "Could not close unwanted socket", e);
+ }
+ break;
+ }
+ }
+ }
+ }
+ if (D) Log.i(TAG, "END mAcceptThread");
+ }
+
+ public void cancel() {
+ if (D) Log.d(TAG, "cancel " + this);
+ try {
+ mmServerSocket.close();
+ } catch (IOException e) {
+ Log.e(TAG, "close() of server failed", e);
+ }
+ }
+ }
+
+
+ /**
+ * This thread runs while attempting to make an outgoing connection
+ * with a device. It runs straight through; the connection either
+ * succeeds or fails.
+ */
+ private class ConnectThread extends Thread {
+ private final BluetoothSocket mmSocket;
+ private final BluetoothDevice mmDevice;
+
+ public ConnectThread(BluetoothDevice device) {
+ mmDevice = device;
+ BluetoothSocket tmp = null;
+
+ // Get a BluetoothSocket for a connection with the
+ // given BluetoothDevice
+ try {
+ tmp = device.createRfcommSocketToServiceRecord(MY_UUID);
+ } catch (IOException e) {
+ Log.e(TAG, "create() failed", e);
+ }
+ mmSocket = tmp;
+ }
+
+ public void run() {
+ Log.i(TAG, "BEGIN mConnectThread");
+ setName("ConnectThread");
+
+ // Always cancel discovery because it will slow down a connection
+ mAdapter.cancelDiscovery();
+
+ // Make a connection to the BluetoothSocket
+ try {
+ // This is a blocking call and will only return on a
+ // successful connection or an exception
+ mmSocket.connect();
+ } catch (IOException e) {
+ connectionFailed();
+ // Close the socket
+ try {
+ mmSocket.close();
+ } catch (IOException e2) {
+ Log.e(TAG, "unable to close() socket during connection failure", e2);
+ }
+ // Start the service over to restart listening mode
+ BluetoothChatService.this.start();
+ return;
+ }
+
+ // Reset the ConnectThread because we're done
+ synchronized (BluetoothChatService.this) {
+ mConnectThread = null;
+ }
+
+ // Start the connected thread
+ connected(mmSocket, mmDevice);
+ }
+
+ public void cancel() {
+ try {
+ mmSocket.close();
+ } catch (IOException e) {
+ Log.e(TAG, "close() of connect socket failed", e);
+ }
+ }
+ }
+
+ /**
+ * This thread runs during a connection with a remote device.
+ * It handles all incoming and outgoing transmissions.
+ */
+ private class ConnectedThread extends Thread {
+ private final BluetoothSocket mmSocket;
+ private final InputStream mmInStream;
+ private final OutputStream mmOutStream;
+
+ public ConnectedThread(BluetoothSocket socket) {
+ Log.d(TAG, "create ConnectedThread");
+ mmSocket = socket;
+ InputStream tmpIn = null;
+ OutputStream tmpOut = null;
+
+ // Get the BluetoothSocket input and output streams
+ try {
+ tmpIn = socket.getInputStream();
+ tmpOut = socket.getOutputStream();
+ } catch (IOException e) {
+ Log.e(TAG, "temp sockets not created", e);
+ }
+
+ mmInStream = tmpIn;
+ mmOutStream = tmpOut;
+ }
+
+ public void run() {
+ Log.i(TAG, "BEGIN mConnectedThread");
+ byte[] buffer = new byte[1024];
+ int bytes;
+
+ // Keep listening to the InputStream while connected
+ while (true) {
+ try {
+ // Read from the InputStream
+ bytes = mmInStream.read(buffer);
+
+ // Send the obtained bytes to the UI Activity
+ mHandler.obtainMessage(BluetoothChat.MESSAGE_READ, bytes, -1, buffer).sendToTarget();
+
+ // Reload the buffer to clear extra bytes from the previous read
+ buffer = new byte[1024];
+ } catch (IOException e) {
+ Log.e(TAG, "disconnected", e);
+ connectionLost();
+ break;
+ }
+ }
+ }
+
+ /**
+ * Write to the connected OutStream.
+ * @param b The bytes to write
+ */
+ public void write(byte[] b) {
+ try {
+ mmOutStream.write(b);
+
+ // Share the sent message back to the UI Activity
+ Message msg = mHandler.obtainMessage(BluetoothChat.MESSAGE_OUTGOING_STRING);
+ Bundle bundle = new Bundle();
+ bundle.putByteArray(BluetoothChat.MESSAGE_WRITE, b);
+ msg.setData(bundle);
+ mHandler.sendMessage(msg);
+ } catch (IOException e) {
+ Log.e(TAG, "Exception during write", e);
+ }
+ }
+
+ public void cancel() {
+ try {
+ mmSocket.close();
+ } catch (IOException e) {
+ Log.e(TAG, "close() of connect socket failed", e);
+ }
+ }
+ }
+}
diff --git a/samples/BluetoothChat/src/com/example/android/BluetoothChat/DeviceListActivity.java b/samples/BluetoothChat/src/com/example/android/BluetoothChat/DeviceListActivity.java
new file mode 100644
index 0000000..fa722a2
--- /dev/null
+++ b/samples/BluetoothChat/src/com/example/android/BluetoothChat/DeviceListActivity.java
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.BluetoothChat;
+
+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;
+
+/**
+ * This Activity appears as a dialog. It lists any paired devices and
+ * devices detected in the area after discovery. When a device is chosen
+ * by the user, the MAC address of the device is sent back to the parent
+ * Activity in the result Intent.
+ */
+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<String> mPairedDevicesArrayAdapter;
+ private ArrayAdapter<String> 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<String>(this, R.layout.device_name);
+ mNewDevicesArrayAdapter = new ArrayAdapter<String>(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 {
+ String noDevices = getResources().getText(R.string.none_paired).toString();
+ mPairedDevicesArrayAdapter.add(noDevices);
+ }
+ }
+
+ @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(R.string.scanning);
+
+ // 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(R.string.select_device);
+ if (mNewDevicesArrayAdapter.getCount() == 0) {
+ String noDevices = getResources().getText(R.string.none_found).toString();
+ mNewDevicesArrayAdapter.add(noDevices);
+ }
+ }
+ }
+ };
+
+}
