How to get rid of the program name bar at the top of the application?

问题

i would like to get rid of the defualt grey bar which apears at the top of my application. I just can't seem to find the attribute or setting to do so. how can this be achived? thanks

回答1:

Use android:theme="@android:style/Theme.NoTitleBar", either for this specific <activity> element in your manifest, or for the whole <application> element if you want it gone for all of them. Here's a FAQ entry about it.

回答2:

I tried the manifest method but for some reason it wasn't working. However using the .java method as described here worked.

requestWindowFeature(Window.FEATURE_NO_TITLE);

回答3:

Open app/src/main/res/values/styles.xml

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
    </style>

</resources>

回答4:

A good article why you should avoid removing the title bar from an app by Googler Reto Meier: http://blog.radioactiveyak.com/2010/07/how-to-display-android-status-bar-in.html

Read and rethink if you really need to remove the title bar from your app.

来源：https://stackoverflow.com/questions/3526848/how-to-get-rid-of-the-program-name-bar-at-the-top-of-the-application