title: ActionBar not shown on Android Studio preview with AppCompat v22.2.1
body: <p>I'm new to Android. I encounter a problem in Android Studio 1.3.1. I can't preview my ActionBar at any preview. As in title, i use AppCompat v22.2.1 and minSDK set to 11 or 15.</p>
  
  <p>With API 15 preview, actionBar is not shown and there is a "Rendering Problems" with "<strong>Couldn't resolve resource @style/Widget.Holo.Light.ActionMode (2 similar errors not shown)</strong>". Following other answers, I changed to Holo Dark theme then I have "<strong>Couldn't resolve resource @style/Widget.Holo.ActionMode (2 similar errors not shown)</strong>"</p>
  
  <p>With API 19 preview, the top bar completely disappeard! Then I changed to Holo theme and the top bar displays but still not the ActionBar.</p>
  
  <p>With API 22 preview, no ActionBar too.</p>
  
  <p>This is my build.gradle file :</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 22
      buildToolsVersion "22.0.1"
  
      defaultConfig {
          applicationId "com.primegarage_mada.primegarage"
          minSdkVersion 11
          targetSdkVersion 22
          versionCode 1
          versionName "1.0"
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  }
  
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
      compile 'com.android.support:appcompat-v7:22.2.1'
  }
  </code></pre>
  
  <p>In Style.xml :</p>
  
  <pre><code>&lt;style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"&gt;
  </code></pre>
  
  <p>My very simple Menu :</p>
  
  <pre><code>&lt;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=".Accueil"&gt;
      &lt;item android:id="@+id/action_settings" android:title="@string/action_settings"
          android:orderInCategory="100" app:showAsAction="never" /&gt;
      &lt;item
          android:id="@+id/action_refresh"
          android:title="@string/action_refresh"
          android:icon="@drawable/ic_action_refresh"
          app:showAsAction="ifRoom" /&gt;
  
  &lt;/menu&gt;
  </code></pre>
  
  <p>In my java file :</p>
  
  <pre><code>@Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_accueil);
      }
  @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          // Inflate the menu; this adds items to the action bar if it is present.
          getMenuInflater().inflate(R.menu.menu_accueil, menu);
          return true;
          //return super.onCreateOptionsMenu(menu);
      }
  </code></pre>
  
  <p>And when does we need return true and return super.onCreateOptionsMenu(menu)?</p>
  
  <p>I really need to preview, for i can't run now.</p>
  
  <p>Thank you in advance,</p>