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931 PointsAction bar not removing from the emulator
The action bar is still present on my app when i run on the emulator. I am running android Studio version 2.2.3. My target API level is set to 24.
My styles.xml is as shown below
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
<style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light"/>
</resources>
And my v21/style.xml file is
<resources>
<style name="Theme.AppCompat.Light.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:statusBarColor">@android:color/transparent</item>
</style>
</resources>
I notice that Ben's target API in the video is set to 21. I have changed my target API from 24 to 21 via gradle.module and syncronised but still the action bar appears on my emulator device. Has anyone been able to get around this
3 Answers
benjamind
6,442 PointsHi Kelvin,
does your problem still exist? I just wondered if the action bar vanishes in your activity's preview in android studio or not. If yes I'd recommend doing a clean build by picking "Build -> Clean Project" from the menu and compiling again.
I recommend finding out why the change in your styles.xml is ignored. But there is another (quick and dirty) way to hide the Action Bar by adding this to your onCreate-method:
getSupportActionBar().hide();
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getSupportActionBar().hide();
setContentView(R.layout.activity_main);
}
kelvin gwaruka
931 PointsThanks Benjamin, but unfortunately adding
getSupportActionBar().hide();
gives me a null pointer exception too and app crashes. I will update you Anna with any solution i have on this issue. If you figure is first please share.
Jonathan Grieve
Treehouse Moderator 91,253 PointsI've tried everything I know to get rid of the action bar. I thought I'd downloaded the same version as the video but I'm on AP23. The app functionally works as the video but for me, there's too many visual differences and quirks to the video so I'm just going to move on I think.
So long as we all understand there are going to be little differences and get to know the software we should be fine. :-)
kelvin gwaruka
931 PointsI agree with you Jonathan. I have exhausted all the options i can think of. Been on stack overflow and github but doesn't seem to help.
anna lobers
707 Pointsanna lobers
707 PointsBenjamin i tried that but then i got a null pointer excption: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.support.v7.app.ActionBar.hide()' on a null object reference
jessica killeen
4,549 Pointsjessica killeen
4,549 PointsHi there I am experiencing the same issue, and likely because I have a different version of Android Studio from previous lesson.
This is how my styles.xml was built when I created project: <resources>
</resources>
On the video, when the styles.xml file is opened, there is much less code, i.e.:
<resources>
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"> <!-- Customize your theme here. --> <item name="colorPrimary">@color/colorPrimary</item> <item name="colorPrimaryDark">@color/colorPrimaryDark</item> <item name="colorAccent">@color/colorAccent</item> </style> </resources>
I think my issue has to do with the extra style names at the bottom. If I remove them I get an error message. If I remove them and other references to them, I also get an error message.
Any suggestions? Thanks! Jessica