Android-ActionBar图标未显示

Question

I have trouble seeing the icons in the ActionBar. I also read around here in StackOverFlow, but nothing...

Here is my action.xml

<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto" >

<item
    android:id="@+id/addAct"
    android:icon="@android:drawable/ic_input_add"
    android:background="@null"
    app:showAsAction="always"
    android:title="@string/add"
    />
<item
    android:id="@+id/searchAct"
    android:icon="@android:drawable/ic_menu_search"
    app:showAsAction="ifRoom"
    android:title="Cerca"
    android:actionViewClass="android.widget.SearchView"
    />

<item
    android:id="@+id/visualizza"
    android:title="@string/txtVisualizza"
    app:showAsAction="always"
    >

</item>

Here, is AndroiManifest.xml:

<?xml version="1.0" encoding="utf-8"?>

<uses-sdk
    android:minSdkVersion="11"
    android:maxSdkVersion="21"/>

<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".MainActivity"
        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=".WriteActivity"
        android:label="@string/title_activity_write" >
    </activity>
</application>

Here, MainActivity:

public class MainActivity extends Activity { ...
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.action, menu);
    return super.onCreateOptionsMenu(menu);
}

In the xml code, I have used the app for ShowAsAction, but this not seems be the problem. Thanks for any help :)

Answer 1

You are developing app for material design ( Target SDK = 21). It does not support Activity.

So change extends Activity to extends ActionBarActivity .

Now your menu will be visible. And you can edit action bar using getSupportActionBar() .