未创建Android ActionBar

Question

I'm currently working on a mp3 library on Android. Thing is, there are 4 tab, representing Songs, Albums, Artists and Playlists. My main activity creates a tabspec for each tab and add them to a tabhost. The problem is, I can't use the ActionBar. I tried the tutorial from Android Developpers and it works fine, however when I try to apply it on my project it doesn't work. I can't see the actionbar and if I try a getActionBar() in my activity it returns null.

As in the tutorial I put this code in the activity :

@Override    
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.actionbar_menu, menu);
    return true;
}

And I created this menu :

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

<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:id="@+id/menu_save"
          android:title="Hello !"
          android:showAsAction="ifRoom" />
</menu>

I suppose there are more things to do in order to display the actionbar, yet I can't find an accurate on the Web since now ... Does this have something to do with the xml from my main activity ?

Thanks for your attention

Answer 1

For me I added this to my manifest:

android:theme="@android:style/Theme.Holo.Light.DarkActionBar" >

Hopefully that saves some time from having to look it up.

Answer 2

The action bar is only available from Android 3.0 and above, and you need to set your application theme to Holo.

Besides setting the sdk version, for instance:

<uses-sdk android:minSdkVersion="11" android:targetSdkVersion="15"/> 

You also have to make the application theme use Holo .

Answer 3

使android:minSdkVersion="14"对我android:minSdkVersion="14" 。