Android: How to maximize PreferenceFragment width (or get rid of margin)?

Question

Answer 1

The answers here didn't work for me. However, this one did:

source: https://stackoverflow.com/a/53402144/9026710

In your PreferenceScreen add this line:

xmlns:app="http://schemas.android.com/apk/res-auto"

add this line in PreferenceScreen and it's elements:

app:iconSpaceReserved="false"

Example:

<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
    app:iconSpaceReserved="false"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <CheckBoxPreference
        app:iconSpaceReserved="false"
        android:defaultValue="false"
        android:key="key1"
        android:title="title1" />
    <SwitchPreference
        app:iconSpaceReserved="false"
        android:defaultValue="false"
        android:key="@string/pref_wakeup"
        android:title="key2" />
</PreferenceScreen>

Answer 2

Another option is to set your own adapter. That way you have more flexibility and it's more robust against changes.

See that other answer about custom header adapter