Seeing message in logs: "app:theme is deprecated"?

Question

Ever since upgrading to the latest appcompat library, I'm seeing a message in my logs from ViewUtils.

app:theme is now deprecated. Please move to using android:theme instead.

I'm using parent="Theme.AppCompat.Light.NoActionBar" as my theme parent.

Harvester

the warning is not complaining about the theme itself, but about the app keyword. You should start using android in place of app – Alviani

are you using ToolBar? – Alviani

Yes, I am using Toolbar. – Harvester

look in your layout which contains the Toolbar and look for app:, replace it with android: – Alviani

See here for an official info: android-developers.googleblog.com/2015/04/… – Irreplaceable

Answer 1

Replace app:theme to android:theme but you can have a situation when you are not using app:theme. Check your layout, especially toolbar layout. In my case, I didn't have app:theme in my layout files. Then take a look at my situation:

<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:styled="http://schemas.android.com/apk/res-auto"
    android:id="@+id/toolbar_actionbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="?attr/colorPrimary"
    android:minHeight="?attr/actionBarSize"
    styled:popupTheme="@style/ToolbarDarkPopup"
    styled:theme="@style/ActionBarThemeOverlay" />

And I've changed this layout to:

<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/toolbar_actionbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="?attr/colorPrimary"
    android:minHeight="?attr/actionBarSize"
    android:theme="@style/ActionBarThemeOverlay" />

Now I don't see the warning.

Take a look also here: https://chris.banes.me/2015/04/22/support-libraries-v22-1-0/

Great explanation by Chris Banes

Shop

and what about 'popupTheme'? should we also use 'android' instead of 'styled'? – Boren

@Boren No, you keep using styled:popupTheme, styled:contentInsetStart, etc. (as long as you're using the support library Toolbar). These are styleable attributes declared by the support library. – Butanone

But this solutions works with every version of Android or there is any version which don't accept the use of andoid:teme? – Infliction

@PauArlandisMartinez this has a bit more information: #57280115 – Dariusdarjeeling

Answer 2

I had another case where this occurred when my Toolbar was styled in styles.xml. It looked like this:

<style name="AppActionBar" parent="Widget.AppCompat.ActionBar">
    <item name="android:background">@color/ng_blue</item>
    <item name="theme">@style/ThemeOverlay.AppActionBar</item>
    <item name="popupTheme">@style/ThemeOverlay.AppCompat.Light</item>
</style>

Change name="theme" to name="android:theme" and it fixed the problem.

Handley

that was the place my search for :theme did not find as I just did not think about this location... – Darcidarcia

Answer 3

Check your layout.

You are using a Toolbar where you have defined app:theme.

Now with the support 22.1 app:theme is deprecated. You should use android:theme

Check here for more info.

Remit

Answer 4

If you see a code block like the following in the styles file ;

<item name="theme">@style/MyToolbarTheme</item>

Replace it.

<item name="android:theme">@style/MyToolbarTheme</item>

Holophrastic