problema codice che su kitkat funziona su lollipop no

[Chry1911]

Salve amici

sto progettando un'app android e ora ho implementato una porzione di codice presa da:
Retrieving a List of Contacts | Android Developers
ho preso il codice che c'è qui

finche lo uso su kitkat nella mia activity lancio un intent che richiama quel codice perso da developer.android e mi esegue una rubrica telefonica...
Essendo però che io sto usando il material design e appcompat-V7 e quella porzione di codice usa i fragment ho questo problema:
in kitkat si visualizza tutto correttamente e funziona, su lollipop facendo debug da android studio si riesce a vedere che scattauna nullpointer exception e la da su questa riga in ContactDetailActivity

if (Utils.hasHoneycomb()) {
                // Enables action bar "up" navigation
                getActionBar().setDisplayHomeAsUpEnabled(true);
                //((ActionBarActivity))getActivity()).getSupportActionBar();

            }

infatti lanciando l'app su lollipop non vedo le barre di menu in alto.

il mio mainfest è questo:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="todonotes.com.todonotes_buildfinale">

    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.READ_CONTACTS"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/Theme.AppCompat.NoActionBar">

        <activity android:name="todonotes.com.todonotes_buildfinale.SplashScreen"
            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="todonotes.com.todonotes_buildfinale.LoginActivity" android:theme="@style/AppTheme.Dark"
            android:label="@string/app_name">
            <intent-filter>
                <action android:name="todonotes.com.todonotes_buildfinale.SIGNUPACTIVITY"/>

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


        <activity
            android:name="todonotes.com.todonotes_buildfinale.ContactsListActivity" android:theme="@style/AppTheme"
            android:label="@string/activity_contacts_list"
            android:windowSoftInputMode="adjustResize">

            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
            <!-- Add intent-filter for search intent action and specify searchable configuration
                 via meta-data tag. This allows this activity to receive search intents via the
                 system hooks. In this sample this is only used on older OS versions (pre-Honeycomb)
                 via the activity search dialog. See the Search API guide for more information:
                 http://developer.android.com/guide/topics/search/search-dialog.html -->
            <intent-filter>
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>
            <meta-data android:name="android.app.searchable"
                android:resource="@xml/searchable_contacts" />
        </activity>
        <activity
            android:name="todonotes.com.todonotes_buildfinale.ContactDetailActivity"  android:theme="@style/AppTheme"
            android:label="@string/activity_contact_detail"
            android:parentActivityName="todonotes.com.todonotes_buildfinale.ContactDetailActivity">
            <!-- Define hierarchical parent of this activity, both via the system
                 parentActivityName attribute (added in API Level 16) and via meta-data annotation.
                 This allows use of the support library NavUtils class in a way that works over
                 all Android versions. See the "Tasks and Back Stack" guide for more information:
                 http://developer.android.com/guide/components/tasks-and-back-stack.html
            -->
            <meta-data android:name="android.support.PARENT_ACTIVITY"
                android:value="todonotes.com.todonotes_buildfinale.ContactDetailActivity" />
        </activity>
        <activity android:name="todonotes.com.todonotes_buildfinale.SignupActivity" android:theme="@style/AppTheme.Dark"></activity>
        <activity android:name="todonotes.com.todonotes_buildfinale.ConfirmActivity" android:theme="@style/AppTheme.Dark"></activity>
        <activity android:name="todonotes.com.todonotes_buildfinale.ListNoteActivity" android:theme="@style/AppTheme.Dark"></activity>

    </application>

</manifest>

spero possiate aiutarmi

[Cyromono]

Devi utilizzare getActionBar per kitekat e precedenti, getSupportActionBar per lollipop e superiori, oppure risolvi il problema utilizzando solo getSupportActionbar