自定义导航栏

来源：互联网发布：python 计算技术指标编辑：程序博客网时间：2024/05/21 11:33

    VCOne *vc1 = [[VCOne alloc]init];

// [self.window setRootViewController:vc1];
    //导航栏的高度是44
    UINavigationController *navCtrl = [[UINavigationController alloc]initWithRootViewController:vc1];
   //显示工具栏
    navCtrl.toolbarHidden = NO;
    //
    //创建自己的导航栏,不使用系统默认的

    //第一步,隐藏系统的导航栏
    navCtrl.navigationBarHidden = YES;

    //第二步,创建自己的导航栏
    UINavigationBar *navBar = [[UINavigationBar alloc]initWithFrame:CGRectMake(0, 20, 320, 46)];
    navBar.tag = 101;
    //第三部,创建导航元素xiang
    UINavigationItem *navItem = [[UINavigationItem alloc]initWithTitle:@"根视图"];

    //第四步:添加按钮元素
    UIBarButtonItem *btn01 = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:nil action:nil];
    UIBarButtonItem *btn02 = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemCompose target:nil action:nil];

    //第五步:将按钮赋给导航元素项
    navItem.leftBarButtonItem = btn01;
    navItem.rightBarButtonItem = btn02;

    //第六步:将导航元素项推入导航栏元素栈
    [navBar pushNavigationItem:navItem animated:YES];

    //第七部:将导航栏加入视图中
    [navCtrl.view addSubview:navBar];

    navBar.barStyle = UIBarStyleBlackTranslucent;

    [self.window setRootViewController:navCtrl];