navigationItem 导航栏简单使用

1、设置导航栏左边和右边的按钮

    self.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithTarget:self action:@selector(friendSearch) image:@"...." highImage:@"...."];
    self.navigationItem.rightBarButtonItem = [UIBarButtonItem itemWithTarget:self action:@selector(pop) image:@"...." highImage:@"...."];

2、 设置中间titleView

    /* 中间的标题按钮 */
    GJTitleButton *titleButton = [[GJTitleButton alloc] init];
    // 设置图片和文字
    NSString *name = [GJAccountTool account].name;
    [titleButton setTitle:name?name:@"首页" forState:UIControlStateNormal];
    // 监听标题点击
    [titleButton addTarget:self action:@selector(titleClick:) forControlEvents:UIControlEventTouchUpInside];
    self.navigationItem.titleView = titleButton;