일단 이 어플은 블루투스로 메세지를 보내는 어플이구요
액티비티는
BluetoothChat.ajva
BluetoothChatService.java
DeviceListActivity.java
Playball.java
였는데요
제가 인트로 화면을 넣으려고 intro.java 액티비티를 추가했어요
어떻게 수정해야지 인트로 화면 나오고 BluetoothChat.java 액티비티로 넘어갈수가 잇나요??

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.android.BluetoothChat"
    android:versionCode="1"
    android:versionName="1.0" >

    <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" />
<activity android:name=".Playball">
</activity>
    </application>

</manifest>