package org.thoughtcrime.securesms.util; import android.app.Activity; import android.content.Intent; import org.thoughtcrime.securesms.R; public class DynamicTheme { public static final String DARK = "dark"; public static final String LIGHT = "light"; private int currentTheme; public void onCreate(Activity activity) { currentTheme = getSelectedTheme(activity); activity.setTheme(currentTheme); } public void onResume(Activity activity) { if (currentTheme != getSelectedTheme(activity)) { Intent intent = activity.getIntent(); activity.finish(); OverridePendingTransition.invoke(activity); activity.startActivity(intent); OverridePendingTransition.invoke(activity); } } protected int getSelectedTheme(Activity activity) { String theme = TextSecurePreferences.getTheme(activity); if (theme.equals(DARK)) return R.style.TextSecure_DarkTheme; return R.style.TextSecure_LightTheme; } private static final class OverridePendingTransition { static void invoke(Activity activity) { activity.overridePendingTransition(0, 0); } } }