导航栏navigationbar 设置

最新推荐文章于 2023-06-12 06:30:00 发布

原创最新推荐文章于 2023-06-12 06:30:00 发布 · 478 阅读

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本文介绍了三种自定义iOS应用导航栏的方法：通过UIButton创建自定义返回按钮并设置为左BarButtonItem；利用leftBarButtonItems属性实现固定间距及自定义按钮；直接插入UIView到导航栏并进行自定义布局。

1.正常设置根据

// UIButton *backBtn = [UIButton buttonWithType:UIButtonTypeCustom];

// backBtn.frame = CGRectMake(0, 6, 40, 23);

// UIImageView *backImg = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"back_dark_icon"]];

// backImg.frame = CGRectMake(-10, 0, 22, 22); //CGRectMake(-10, 0, 22, 22)

// [backBtn addSubview:backImg];

// [backBtn addTarget:self action:@selector(leftButtonBackPage:) forControlEvents:UIControlEventTouchUpInside];

// UIBarButtonItem *leftButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backBtn];

// self.navigationItem.leftBarButtonItem = leftButtonItem;

2.leftBarButtonItems来设置

UIButton * leftBtn = [UIButton buttonWithType:UIButtonTypeSystem];

leftBtn.frame = CGRectMake(0, 0, 25,25);

[leftBtn setBackgroundImage:[UIImage imageNamed:@"back_dark_icon"] forState:UIControlStateNormal];

[leftBtn addTarget:self action:@selector(leftButtonBackPage:) forControlEvents:UIControlEventTouchUpInside];

UIBarButtonItem * leftBarBtn = [[UIBarButtonItem alloc]initWithCustomView:leftBtn];;

UIBarButtonItem * spaceItem = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpacetarget:nil action:nil];

//将宽度设为负值

spaceItem.width = -15;

//将两个BarButtonItem都返回给NavigationItem

self.navigationItem.leftBarButtonItems = @[spaceItem,leftBarBtn];

3.向导航栏中插入一个view然后自定义

//导航栏

//控制导航栏颜色的

self.naviBkgView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, self.navigationController.navigationBar.bounds.size.width, self.navigationController.navigationBar.bounds.size.height)];

self.naviBkgView.userInteractionEnabled = YES;

self.naviBkgView.backgroundColor = [UIColor whiteColor];

[self.navigationController.navigationBar insertSubview:self.naviBkgView atIndex:self.navigationController.navigationBar.subviews.count-1];