iOS8 自定义navigationItem.titleView

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;