[android-developers] Re: [XML] Setting a View background based on theme attribute crash the app.

Ok, it was a mistake. I have two themes.xml files, one for Honeycomb+, and one for Gingerbread-. I've only edited the file targeting Gingerbread-, and was testing on ICS... Sorry for the noise!

Le samedi 11 août 2012 12:50:26 UTC+2, Sébastien Brochet a écrit :

Dear Android experts,

I'm trying to set a ListView background color based on the current theme attribute, but it crash every time the ListView is shown.It seems I'm doing something wrong but I can't see what...

Here's what I'm doing:

First, create the background color:

<resources>

    <color name="userlist_background_light">#fff0f0f0</color>

    <color name="userlist_background_dark">#ff040404</color>

</resources>

Second, create attributes for my custom themes:

<resources>

    <attr name="userlist_background" format="reference|color" />

</resources>

Third, setting this attribute in my themes:

<resources xmlns:android="http://schemas.android.com/apk/res/android">

    <style name="Light" parent="Theme.Sherlock.Light">

        <item name="userlist_background">@color/userlist_background_light</item>

    </style>

    <style name="Dark" parent="Theme.Sherlock">

        <item name="userlist_background">@color/userlist_background_dark</item>

    </style>

</resources>

And finally, using this attribute in the ListView xml:

<ListView

        android:id="@+id/user_bar"

        android:layout_width="0dip"

        android:layout_height="0dip"

        android:background="?attr/userlist_background"

        android:cacheColorHint="?userlist_background"

        android:visibility="gone" />

Even the Eclipse layout view crash. Of course, it works fine if I use a "@color/" directly in the background attribute. It even work if I use say, "?android:attr/colorBackground". The message error is:

android.view.InflateException: Binary XML file line #8: Error inflating class android.view.ListView

Caused by: android.content.res.Resources$NotFoundException: Resource is not a Drawable (color or path): TypedValue{t=0x2/d=0x7f010068 a=-1}

I'm pretty sure I'm doing something wrong, as it works with android attributes, but I haven't be able to find what during my Google searches.

I hope you'll be able to help me!

Many thanks,

Sébastien.

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