This is an easy to use custom preference, which opens a dialog with a number picker. The value gets automatically saved and you can set the default-, min- and maxValue conveniently in the XML.

<com.vanniktech.vntnumberpickerpreference.VNTNumberPickerPreference
    android:defaultValue="@integer/font_size_default_value"
    android:key="preference_font_size"
    android:title="@string/font_size"
    app:vnt_maxValue="@integer/font_size_max_value"
    app:vnt_minValue="@integer/font_size_min_value"
    app:vnt_setWrapSelectorWheel="true"/>

build.gradle

compile 'com.vanniktech:vntnumberpickerpreference:1.0.0'
compile 'com.vanniktech:vntnumberpickerpreference:1.0.1-SNAPSHOT'

Modules are located on Maven Central.

Go to your preference XML file and insert the above mentioned XML tag. Afterwards you are good to go and can run your project!

SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
int fonftSize = sharedPreferences.getInt("preference_font_size", getResources().getInteger(R.integer.font_size_default_value));

No configuration needed.

Copyright (C) 2014-2016 Vanniktech - Niklas Baudy

Licensed under the Apache License, Version 2.0