编程一些问题摘要

设置黑底白字

- (void)viewWillAppear:(BOOL)animated

{
    [super viewWillAppear:animated];
    
    self.navigationController.navigationBar.barStyle    = UIBarStyleBlack;
    self.navigationController.navigationBar.translucent = NO;
    
    [self.navigationController setToolbarHidden:YES animated:animated];
}