Android如何快速适配暗黑模式详解

public class DarkModeUtils {

    public static final String KEY_CURRENT_MODEL = "night_mode_state_sp";

    private static int getNightModel(Context context) {
        SharedPreferences sp = context.getSharedPreferences(KEY_CURRENT_MODEL, Context.MODE_PRIVATE);
        return sp.getInt(KEY_CURRENT_MODEL, AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM);
    }

    public static void setNightModel(Context context, int nightMode) {
        SharedPreferences sp = context.getSharedPreferences(KEY_CURRENT_MODEL, Context.MODE_PRIVATE);
        sp.edit().putInt(KEY_CURRENT_MODEL, nightMode).apply();
    }

    
    public static void init(Application application) {
        int nightMode = getNightModel(application);
        AppCompatDelegate.setDefaultNightMode(nightMode);
    }

    
    public static void applyNightMode(Context context) {
        AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
        setNightModel(context, AppCompatDelegate.MODE_NIGHT_YES);
    }

    
    public static void applyDayMode(Context context) {
        AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
        setNightModel(context, AppCompatDelegate.MODE_NIGHT_NO);
    }

    
    public static void applySystemMode(Context context) {
        AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM);
        setNightModel(context, AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM);
    }

    
    public static boolean isDarkMode(Context context) {
        int nightMode = getNightModel(context);
        if (nightMode == AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM) {
            int applicationUiMode = context.getResources().getConfiguration().uiMode;
            int systemMode = applicationUiMode & Configuration.UI_MODE_NIGHT_MASK;
            return systemMode == Configuration.UI_MODE_NIGHT_YES;
        } else {
            return nightMode == AppCompatDelegate.MODE_NIGHT_YES;
        }
    }

}

    public static void setDefaultNightMode(@NightMode int mode) {
        switch (mode) {
            case MODE_NIGHT_NO:
            case MODE_NIGHT_YES:
            case MODE_NIGHT_FOLLOW_SYSTEM:
            case MODE_NIGHT_AUTO_TIME:
            case MODE_NIGHT_AUTO_BATTERY:
                if (sDefaultNightMode != mode) {
                    sDefaultNightMode = mode;
                    applyDayNightToActiveDelegates();
                }
                break;
            default:
                Log.d(TAG, "setDefaultNightMode() called with an unknown mode");
                break;
        }
    }

public static void setDefaultNightMode(int mode) {
        switch(mode) {
        case -1:
        case 0:
        case 1:
        case 2:
            sDefaultNightMode = mode;
            break;
        default:
            Log.d("AppCompatDelegate", "setDefaultNightMode() called with an unknown mode");
        }
    }