navigationBar其实有三个子视图，leftBarButtonItem，rightBarButtonItem，以及titleView。前两种的自定义请参考http://www.cnblogs.com/6duxz/p/4030916.html
titleView的自定义就更简单了，把它看成一个视图，替换或者添加子视图都可以。以下我在titleView添加了两个button
UIButton* actionNewButton = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 50, 40)]; [actionNewButton setTitle:@"测试1" forState:UIControlStateNormal]; actionNewButton.tag=0; [actionNewButton setTitleColor:[UIColor colorWithRed:0.1 green:0.63 blue:0.96 alpha:0.93] forState:UIControlStateNormal]; //actionNewButton.backgroundColor=[UIColor grayColor]; UIButton* classicAction = [[UIButton alloc]initWithFrame:CGRectMake(50, 0, 50, 40)]; [classicAction setTitle:@"测试2" forState:UIControlStateNormal]; classicAction.tag=1; [classicAction setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; //classicAction.backgroundColor=[UIColor blueColor]; UIView* titleView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 100, 40)]; //titleView.backgroundColor=[UIColor redColor]; [titleView addSubview:actionNewButton]; [titleView addSubview:classicAction]; self.navigationItem.titleView=titleView;
iOS8 自定义navigationItem.titleView
原文：http://www.cnblogs.com/6duxz/p/4037062.html