change background color of Preference

Question

I have a PreferenceCategory, xml file and I have defined all preferences in it, I call this from class that extends PreferenceActivity. I am unable

Answer 1

Please specify a linear layout with a textview attached and specify background color and attach this xml to preferencecategory using the layout property.

<PreferenceCategory
     android:layout="@layout/preftitle"
 >

Where preftitle is an xml which has a linear layout and text view attached.

Answer 2

This worked for me

getListView().setBackgroundColor(Color.TRANSPARENT);

getListView().setCacheColorHint(Color.TRANSPARENT);

getListView().setBackgroundColor(Color.rgb(4, 26, 55));

Answer 3

I am using the PreferenceFragmentCompat, the below solution worked for me.

SettingsScreen

import android.os.Bundle
import android.util.TypedValue
import android.view.View
import androidx.annotation.ColorInt
import androidx.preference.ListPreference
import androidx.preference.Preference
import androidx.preference.PreferenceFragmentCompat
import com.almarai.easypick.R


class SettingsScreen : PreferenceFragmentCompat(), 
Preference.OnPreferenceChangeListener {

override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {

//Providing the XML file for the view to be created
setPreferencesFromResource(R.xml.app_settings_preferences, rootKey)
}

override fun onViewCreated(view: View, savedInstanceState: Bundle?) {

//Get the Theme specific color
val typedValue = TypedValue()
val theme = requireContext().theme

/*R.attr.colorBackgroundScreenBody is my own attr from attrs.xml file, 
you can directly use R.color.red - Or any color from your colors.xml 
file if you do not have multi-theme app.*/
theme.resolveAttribute(R.attr.colorBackgroundScreenBody, typedValue, true)
@ColorInt val color = typedValue.data

view.setBackgroundColor(color)

super.onViewCreated(view, savedInstanceState)
}
}

Answer 4

Or you can also make drawable as your background:

getListView().setBackgroundDrawable(getResources().getDrawable(R.drawable.bluegradient));

Note: setBackgroundDrawable() is deprecated. Use setBackground() instead.

getListView().setBackground(getResources().getDrawable(R.drawable.bluegradient));

Answer 5

Go to res>values>styles.xml> and add this code to your <style > </style> the style should must be app base theme in this @color/activ is color resources added to colors.

<style name="app_theme" parent="@android:style/Theme">
    <item name="android:windowBackground">@color/activ</item>
    <item name="android:windowContentOverlay">@drawable/title_bar_shadow</item>
    <item name="android:listViewStyle">@style/TransparentListView</item>
</style>

if you use app_theme name of style tag then add like this to your manifest

<application
    android:name=".XXXXXX"
    android:allowBackup="true"

    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/app_theme" > //here

If you only want to change your background

Answer 6

Another work-around as far as color goes is that you create a theme for the preferences activity and put the background color of list views as well:

<style name="PrefsTheme" parent="@android:style/Theme.Black.NoTitleBar">
    <item name="android:windowBackground">@color/prefs_bg</item>
    <item name="android:textColor">@color/text_color</item>
    <item name="android:listViewStyle">@style/listViewPrefs</item>
</style>

<style name="listViewPrefs" parent="@android:style/Widget.ListView">
    <item name="android:background">@color/prefs_bg</item>
    <item name="android:cacheColorHint">@color/prefs_bg</item>
</style>