AndroidManifest.xml主要代码：
................
<uses-permission android:name="android.permission.BLUETOOTH"/>
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
<uses-permission android:name="android.permission.READ_CONTACTS"/>
............
<activity
android:name=".MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".BluetoothActivity" android:label="@string/app_name">
</activity>
...........
chat.xml代码:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id = "@+id/container"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id= "@+id/edit_bottombar"
android:layout_alignParentBottom = "true">
<Button android:id="@+id/btn_disconnect"
android:layout_width="65dp"
android:layout_height="wrap_content"
android:layout_alignParentLeft ="true"
android:text="断开"/>
<Button android:id="@+id/btn_msg_send"
android:layout_width="65dp"
android:layout_height="wrap_content"
android:layout_alignParentRight ="true"
android:text="发送"/>
<EditText
android:layout_width="fill_parent"
android:layout_height = "wrap_content"
android:layout_toLeftOf="@id/btn_msg_send"
android:layout_toRightOf="@+id/btn_disconnect"
android:hint = "说点什么呢?"
android:textSize="15dip"
android:id = "@+id/MessageText"/>
</RelativeLayout>
<ListView
android:id="@+id/list"
