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Animation for action bar show action

I am using android 4.2 with latest appCompat. I have implemented showing and hiding the action bar using these methods:

final ActionBar actionBar = getSupportActionBar();
actionBar.hide();
actionBar.show();

When the action bar is hidden, it does so when the flowing animation gradually accelerates. However, when I show it, it appears on the screen almost instantly with almost no smooth animation sliding down. Is there a way to tweak it so that it displays smoothly as it does by hiding it?

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2 answers


Try to enable the hidden / shown animation of the ActionBar which is not enabled by default, so enable the hidden / shown animation using the following code:



actionBar.setShowHideAnimationEnabled(boolean enabled);
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Set in your layout android:animateLayoutChanges="true"

toAppBarLayout 

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:theme="@style/AppTheme.AppBarOverlay"
    android:animateLayoutChanges="true">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:background="?attr/colorPrimary"
        app:popupTheme="@style/AppTheme.PopupOverlay"

        />

</android.support.design.widget.AppBarLayout>


And Toggle to hide or show the toolbar (ActionBar)

if (getSupportActionBar() != null) {

    if (getSupportActionBar().isShowing()) {
        getSupportActionBar().hide();
    } else {
        getSupportActionBar().show();
    }
}
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