初始化时，对navBar、tabBar的设置
- (void)initRootViewController{
// 初始化StatusBar，NavigationBar，TabBar
[[UIApplication sharedApplication] setStatusBarHidden:NO];
[self initNavgationBarStyle];
[self handleTabbarStyle];
// 初始化tabbarController
self.rootWindow.backgroundColor = [UIColor whiteColor];
DCTabBarController *targetTabbarController;
self.tabbarController = [[DCTabBarController alloc] init];
self.tabbarController.delegate = self;
targetTabbarController = self.tabbarController;
self.rootWindow.rootViewController = targetTabbarController;
[self.rootWindow makeKeyAndVisible];
[UIApplication sharedApplication].delegate.window = self.rootWindow;
}
-(void)initNavgationBarStyle{
[UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleDefault;
[[UINavigationBar appearance] setBarTintColor:UIColor.whiteColor/*RGBCOLOR(250,248,245)*/];
[[UINavigationBar appearance] setBackgroundColor:UIColor.whiteColor];
[[UINavigationBar appearance] setTintColor:UIColor.grayColor];
[[UINavigationBar appearance] setBarStyle:UIBarStyleBlackTranslucent];
//导航背景色
[[UINavigationBar appearance] setBackgroundImage:[UIImage createImageWithColor:UIColor.whiteColor]
forBarMetrics:UIBarMetricsDefault];
// [UINavigationBar appearance].shadowImage = [[UIImage alloc] init];
NSShadow *shadow = [[NSShadow alloc] init];
shadow.shadowColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.8];
shadow.shadowOffset = CGSizeMake(0, 0);
[[UINavigationBar appearance] setTitleTextAttributes: [NSDictionary dictionaryWithObjectsAndKeys:
[UIColor dj_colorWithHex:@"#333333"]/*RGBCOLOR(138,58,82)*/, NSForegroundColorAttributeName,
shadow, NSShadowAttributeName,
[UIFont systemFontOfSize:17.0f],
NSFontAttributeName, nil]];
//bar在屏幕顶部且它的背景向上延伸进入状态栏区域
[[UINavigationBar appearance] backgroundImageForBarPosition:UIBarPositionTopAttached barMetrics:UIBarMetricsDefault];
}
#pragma mark - Tabbar样式
- (void)handleTabbarStyle {
[[UITabBar appearance] setBackgroundColor:[UIColor dj_colorWithHex:@"#FFFFFF"]];
if (self.simplizeEnable) {
UIColor *titleHighlightedColor = [UIColor dj_colorWithHex:@"#333333"];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
titleHighlightedColor, NSForegroundColorAttributeName,
DJUIStd.sharedstd.FontH3.Medium, NSFontAttributeName,
nil] forState:UIControlStateNormal];
UIColor *selectColor = [UIColor dj_colorWithHex:@"#028926"];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
selectColor, NSForegroundColorAttributeName,
DJUIStd.sharedstd.FontH3.Medium, NSFontAttributeName,
nil] forState:UIControlStateSelected];
}else{
UIColor *titleHighlightedColor = [UIColor dj_colorWithHex:@"#666666"]/*RGBCOLOR(152, 152, 152)*/;
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
titleHighlightedColor, NSForegroundColorAttributeName,
nil] forState:UIControlStateNormal];
UIColor *selectColor = [UIColor dj_colorWithHex:@"#00CF37"]/*RGBCOLOR(138,58,82)*/;
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
selectColor, NSForegroundColorAttributeName,
nil] forState:UIControlStateSelected];
}
}
还可以在delegate中设置tabBar的样式，请参考：
https://www.jianshu.com/p/b3f1ff9d84bd
1、透明导航栏+定制title颜色
// 重写需要使用透明导航栏的VC的viewWillAppear方法
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
[self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
self.navigationController.navigationBar.shadowImage = [UIImage new];
self.navigationController.navigationBar.translucent = YES;
self.navigationController.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName:[UIColor whiteColor]}; // title颜色
}
2、首页透明导航栏，push进一个默认导航栏的页面
// 重写需要使用默认导航栏的VC的viewWillAppear方法
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
[self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
self.navigationController.navigationBar.shadowImage = nil;// 要使用默认导航栏页面的话，需要设置为nil，否则没有导航栏下面的那根线
self.navigationController.navigationBar.translucent = NO;
}
// 既然在首页的viewWillAppear写了透明的代码，为什么还要在这里写呢？我在尝试的时候发现，不这样的话，透明的效果会晚一点生效，看起来不自然
- (void)willMoveToParentViewController:(UIViewController *)parent{
if (!parent){
self.navigationController.navigationBar.translucent = YES;
self.navigationController.navigationBar.shadowImage = [UIImage new];
}
}
不重写willMoveToParentViewController的样子：点击test，然后点返回按钮，导航栏的透明效果生效的不及时，如果使用滑动返回手势，透明效果生效及时
改后的效果
3、一个坑：
A页导航栏文字白色，push进B页面，颜色使用黑色，然后点击返回按钮返回，导航栏文字设为白色无效！！！首页的viewWillAppear执行了，但是不起作用。（使用滑动返回手势，是起作用的）
// A页
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
self.navigationController.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName:[UIColor whiteColor]}; // title颜色
}
// B页
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
self.navigationController.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName:[UIColor blackColor]}; // title颜色
}
解决方法同2，要在B页里重写方法（同2中改后的效果）：
- (void)willMoveToParentViewController:(UIViewController *)parent{
if (!parent){
self.navigationController.navigationBar.titleTextAttributes = @{NSForegroundColorAttributeName:[UIColor whiteColor]}; // title颜色
}
}
4、A页Push进B页，去掉返回按钮中的文字，仅保留箭头，并且定制箭头颜色
// A页
- (void)gotoB{
[self performSegueWithIdentifier:@"gotoB" sender:nil];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc]init];
backButton.title = @"";
self.navigationItem.backBarButtonItem = backButton;
}
// B页
- (void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
self.navigationController.navigationBar.tintColor = [UIColor colorWithRed:228.0/255 green:156.0/255 blue:0 alpha:1];
}
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