设置NavigationBar标题的颜色

1.在用Attributes

    NSDictionary *attributes=[NSDictionary dictionaryWithObjectsAndKeys:[UIColor redColor],NSForegroundColorAttributeName,nil];
    [self.navigationController.navigationBar setTitleTextAttributes:attributes];

2.自定义标题

    UILabel *titleLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0 , 100, 44)];
    titleLabel.backgroundColor = [UIColor clearColor];  //设置Label背景透明
    titleLabel.font = [UIFont boldSystemFontOfSize:20];  //设置文本字体与大小
    titleLabel.textColor = [UIColor colorWithRed:(0.0/255.0) green:(255.0 / 255.0) blue:(0.0 / 255.0) alpha:1];  //设置文本颜色
    titleLabel.textAlignment = NSTextAlignmentCenter;
    titleLabel.text = @"自定义标题";  //设置标题
    self.navigationItem.titleView = titleLabel;

查找过程中看到其它的一些东西

[self.navigationController.navigationBar setTintColor:[UIColor redColor]];

是设置ios6以及以前版本NavigationBar的整体的颜色，ios7版本用的是

    [self.navigationController.navigationBar setBarTintColor:[UIColor redColor]];

    self.navigationController.navigationBar
    [UINavigationBar appearance]

能达到相同的效果