状态栏的设置
情形:设置欢迎页影藏,首页显示:
在info.plist里增加 Status bar is initially hidden,设置为yes
然后在首页或者父类控制器里设置
// MARK: - 状态栏
override var prefersStatusBarHidden: Bool{
return false
}
这里需要注意第二个方法:
1、如果ViewController不是UINavigationController的子类,调用 preferredStatusBarStyle 是可以改变状态栏文字的颜色,相反则不能;
因为 UINavigationController 有自己的状态栏,需要自己管理所以它的子类是不会走 preferredStatusBarStyle 方法;如果想要某个VC 改变,可以使用 UINavigationBar.barStyle属性
self.navigationController?.navigationBar.barStyle = .black
或者 //隐藏导航栏后 系统会调用 preferredStatusBarStyle 方法
self.navigationController.navigationBarHidden=YES;
标题
//tab和nav的title会全部更改:
self.title = @"首页";
//nav会更改 tab不会更改:
self.navigationItem.title = @"首页";
导航栏颜色
//修改导航栏的颜色
self.navigationController.navigationBar.barTintColor = [UIColor orangeColor];
导航栏下个界面返回按钮
//修改导航栏下个界面返回按钮的文字 注意 修改的是下一个界面的返回按钮:
self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"返回" style:UIBarButtonItemStylePlain target:nil action:nil];
导航栏返回按钮图片
// 修改导航栏返回按钮的图片 返回按钮图片大小为42*42 这里不能直接按照下面的方式设置,不然当界面上有弹框UIAlertController时,图片会向下偏移:
let leftBBi = UIBarButtonItem(title: "", style: .plain, target: self, action: #selector(personalSettingBack))
leftBBi.image = UIImage(named: "nav_back")
leftBBi.tintColor = HHGK_WHITE_COLOR
self.navigationItem.leftBarButtonItem = leftBBi
// 正确的做法应该是自定义一个按钮, 然后设置为leftBarButtonItem:
let backBtn = UIButton(type: .custom)
backBtn.setImage(UIImage.init(named: "nav_back"), for: .normal)
backBtn.tintColor = HHGK_WHITE_COLOR
backBtn.frame = CGRect(x: 0, y: 0, width: 42, height: 42)
backBtn.addTarget(self, action: #selector(personalSettingBack), for: .touchUpInside)
let backBBi = UIBarButtonItem.init(customView: backBtn)
self.navigationItem.leftBarButtonItem = backBBi
导航栏文字样式
//修改导航栏中间文字的样式:
[self.navigationController.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor whiteColor],NSFontAttributeName:[UIFont systemFontOfSize:16]}];
swift:
self.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName:UIColor.white]
工具栏的颜色:
//修改工具栏的颜色:
self.tabBarController.tabBar.barTintColor = [UIColor grayColor];
//修改工具栏下面文字的颜色:
self.tabBarController.tabBar.tintColor = [UIColor blackColor];
透明
//把顶部这个navigationbar设置为透明呢,能够让下面的图片显示出来,但是返回按钮不透明:
[self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
线条
//去掉导航栏下面的线条:
self.navigationController.navigationBar.shadowImage = [UIImage new];
未选中与选中时的图片
//设置UITabBarItem未选中与选中时的图片:
[_hotTabItem setFinishedSelectedImage:[UIImage imageNamed:@"1_selected"] withFinishedUnselectedImage:[UIImage imageNamed:@"1"]];
badgeValue
//设置UITabBarItem的badgeValue:
//指定界面
[self.tabBarController.tabBar.items objectAtIndex:2].badgeValue = [NSString stringWithFormat:@"%ld", ++ goodsCount];
//当前界面
_mine.navigationController.tabBarItem.badgeValue = [NSString stringWithFormat:@"%ld", count];
//为0时清除
_mine.navigationController.tabBarItem.badgeValue = nil;
tabBar样式
//设置tabBar样式
[[UITabBarItemappearance]setTitleTextAttributes:@{NSForegroundColorAttributeName:[selfmyThemeColor]}forState:UIControlStateSelected];
[[UITabBarItemappearance]setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColorredColor]}forState:UIControlStateNormal];
//选中的颜色(图片+图片下面文字的颜色,iOS8.0以后被废弃了)
self.tabBarController.tabBar.selectedImageTintColor= [selfmyThemeColor];
//未选中的颜色(图片+图片下面文字的颜色,没被废弃)
self.tabBarController.tabBar.unselectedItemTintColor= [UIColorgreenColor];
dismiss回到目标控制器
// dismiss方式回到目标控制器:
/*
(1) presentedViewController:The view controller that is presented by this view controlller(read-only),被本视图控制器present出来的的视图控制器(只读)
(2) presentingViewController:The view controller that presented this view controller. (read-only),present出来本视图控制器的视图控制器(只读)
*/
UIViewController *vc = self.presentingViewController;
while (![vc isKindOfClass:[TFTravelllerLoginViewController class]]) {
vc = vc.presentingViewController;
}
[vc dismissViewControllerAnimated:YES completion:nil];
push到下个界面隐藏tabBar pop回去显示tabBar
// 注意是设置目标控制器的hidesBottomBarWhenPushed属性
EaseMessageViewController *messageVc = [[EaseMessageViewController alloc] initWithConversationChatter:contactName conversationType:EMConversationTypeChat];
messageVc.hidesBottomBarWhenPushed = YES;
[self.navigationController pushViewController:messageVc animated:YES];
pop回到目标控制器
//pop方式回到目标控制器:
for (UIViewController *disVc in self.navigationController.viewControllers) {
if ([disVc isKindOfClass:[TFTravelllerLoginViewController class]]) {
[self.navigationController popToViewController:disVc animated:YES];
}
}
UISearchBar自定义
searchBar.backgroundImage = [CzyTools imageWithColor:[UIColor colorWithHexString:@"#F5F5F5"]];
searchBar.backgroundColor = [UIColor clearColor];
[searchBar setSearchFieldBackgroundImage:[CzyTools imageWithColor:[UIColor colorWithHexString:@"#F5F5F5"]] forState:UIControlStateNormal];