Android preference fragment taking space for icon in list preference fragment

Question

As you can see in the image, it is taking some additional space in left . Later I have found that this space is assigned for icon. How can I remove this space?

I have tried preference.setIcon(null);

Also I have tried the solution given here . But no luck .

I am using compile 'com.android.support:preference-v7:25.1.1'

Edit

Here is my style.xml

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
    <item name="colorPrimary">@color/colorPrimary</item>
    <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
    <item name="colorAccent">@color/colorAccent</item>
    <item name="preferenceTheme">@style/PreferenceThemeOverlayCustom</item>
</style>

<style name="PreferenceThemeOverlayCustom" parent="PreferenceThemeOverlay">
    <item name="preferenceFragmentListStyle">@style/PreferenceFragmentListCustom</item>
</style>

<style name="PreferenceFragmentListCustom" parent="PreferenceFragmentList">

    <item name="android:paddingEnd">0dp</item>
    <item name="android:paddingLeft">0dp</item>
    <item name="android:paddingRight">0dp</item>
    <item name="paddingStart">0dp</item>
</style>

Answer 1

Constructing the new preference like this:

new Preference(getPreferenceScreen().getContext());

should solve the issue.

As mentioned by guillaume-tgl the explanation can be found here.

Edit: Using the new support library (28.0.0) you should also call:

preference.setIconSpaceReserved(false);