How can i show the up arrow when i press the searchbutton in my actionbar?
this is what i want
this is in my activity's oncreate:
    getSupportActionBar().setDisplayShowTitleEnabled(false);
    getSupportActionBar().setHomeButtonEnabled(true);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
this is in my styles.xml:
<style name="Theme" parent="Theme.AppCompat.Light.DarkActionBar">
    <item name="android:icon">@drawable/ic_launcher</item>
    <item name="android:homeAsUpIndicator">@drawable/ic_launcher</item>
    <item name="homeAsUpIndicator">@drawable/ic_launcher</item>
</style>
this is in my menu.xml
<item android:id="@+id/searchGrid"
    android:title="@string/search_hint"
    android:icon="@drawable/ic_action_search"
    app:showAsAction="collapseActionView|ifRoom"
    app:actionViewClass="android.support.v7.widget.SearchView"/>
manifest file:
    <activity
        android:theme="@style/Theme"
        android:launchMode="singleTop"
        android:name=".MainActivity"
        android:label="@string/app_name" >
        <meta-data android:name="android.app.searchable"
            android:resource="@xml/searchable" />
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.SEARCH" />
        </intent-filter>
    </activity>
OncreateOptionsMenu method:
    this.menu = menu;
    getMenuInflater().inflate(currentActionBar, menu);
    // Associate searchable configuration with the SearchView
    SearchManager searchManager =(SearchManager) getSystemService(Context.SEARCH_SERVICE);
    SearchView searchView =(SearchView) menu.findItem(R.id.searchGrid).getActionView();
    searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
    searchView.setIconifiedByDefault(true);
    searchView.setInputType(InputType.TYPE_CLASS_NUMBER);
    return true;
Build.gradle dependencies:
    compile 'com.android.support:appcompat-v7:21.0.3'
Thank you so much if you guys could solve this for me, i've been searching for hours.