splash screen application and hide action bar

if your build target sdk 5.0 or over (AppTheme style is Theme.AppCompat.Light.DarkActionBar.)

<activity
    android:name=".Splash"
    android:label="@string/app_name"
    android:theme="@style/Theme.AppCompat.Light.NoActionBar">
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
</activity>

why not add to the manifest the theme of the first activity to exclude the action bar, and maybe even the notification bar?

something like:

<application
    android:allowBackup="true"
    android:icon="@drawable/lojacidadao"
    android:label="@string/app_name"
     android:theme="@style/AppTheme">
    <activity
        android:name="com.example.basicmaponline.Intro"
        android:screenOrientation="portrait"
        android:label="@string/app_name" 
        android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
 ...

This should work if you extend the normal Activity class.

If your Activity extends AppCompatActivity instead, use this theme for example:

  <style name="AppTheme.Splash" parent="@style/Theme.AppCompat.NoActionBar">
    <item name="android:windowFullscreen">true</item>
    <item name="android:windowContentOverlay">@null</item>
  </style>

meaning :

 <activity ...            
    android:theme="@style/AppTheme.Splash" >
    ...

BTW, the reason you have the action bar is because you have set the default theme to have it, in the application tag, so it's not an activity before yours, it's really your own splash activity.