- (BOOL)application:(UIApplication *)application shouldSaveApplicationState:(NSCoder *)coder{    return YES;}- (BOOL)application:(UIApplication *)application shouldRestoreApplicationState:(NSCoder *)coder{    return YES;}

- (void)encodeRestorableStateWithCoder:(NSCoder *)coder{    [super encodeRestorableStateWithCoder:coder];    [coder encodeObject:self.doorPhoto forKey:@"doorPhoto"];}- (void)decodeRestorableStateWithCoder:(NSCoder *)coder{    [super decodeRestorableStateWithCoder:coder];    self.doorPhoto = [coder decodeObjectForKey:@"doorPhoto"];}