Hide action bar immediately when open android app

Question

After research in goole, I can hide action bar but the current result is the action bar still show few seconds before open MainActivity. You can refer in the gif below.

My question is can we hide action bar immediately when launch app?

Here's my source code

@TraiNguyen if youdon't want any bar, just remove it from the main xml — cmak, Aug 20 '22 at 19:30
@cmak I already removed it in the xml, you can take a look my source code above — Trai Nguyen, Aug 21 '22 at 03:59
@VivekGupta you can see in my gif, I can hide the action bar in activity but my expected is hide action bar immediately when launch app — Trai Nguyen, Aug 21 '22 at 04:12
@TraiNguyen it's still in activity layout https://github.com/nguyenvantrai2011/Android-Hide-Action-Bar/blob/e9a0608b58b218a5823dc410eb57f7f95cb3c420/app/src/main/res/layout/activity_main.xml#L9 — cmak, Aug 21 '22 at 05:37
@cmak that's app bar layout, not action bar. Notice my mouse cursor in gif image, the action bar is the back bar at bottom screen — Trai Nguyen, Aug 21 '22 at 06:48

score 1 · Accepted Answer · answered Aug 21 '22 at 16:22

I change theme like below

    <style name="Theme.Transparent" parent="Theme.AppCompat.Light.NoActionBar">
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowActionBar">false</item>
        <item name="android:windowFullscreen">true</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowIsTranslucent">true</item>
    </style>

In AndroidManifest.xml

<activity
     android:name=".MainActivity"
     android:exported="true"
     android:label="@string/app_name"
     android:theme="@style/Theme.Transparent">
     <intent-filter>
         <action android:name="android.intent.action.MAIN" />
         <category android:name="android.intent.category.LAUNCHER" />
     </intent-filter>
</activity>

And the result:

I also commit new source code to HERE if anyone needed

Hide action bar immediately when open android app

1 Answers1