package org.schabi.newpipe; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v7.app.AppCompatActivity; public class ThemableActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (PreferenceManager.getDefaultSharedPreferences(this) .getString("theme", getResources().getString(R.string.light_theme_title)). equals(getResources().getString(R.string.dark_theme_title))) { setTheme(R.style.DarkTheme); } } @Override protected void onResume() { super.onResume(); if (PreferenceManager.getDefaultSharedPreferences(this) .getString("theme", getResources().getString(R.string.light_theme_title)). equals(getResources().getString(R.string.dark_theme_title))) { setTheme(R.style.DarkTheme); } } }