直播软件搭建，修改状态栏、导航条颜色及文字颜色

直播软件搭建，修改状态栏、导航条颜色及文字颜色

一、只改变状态栏颜色

1、首先在info.plist设置View controller-based status bar appearance，并将其值设置为YES。

2、在需要修改状态栏颜色的页面重写系统方法-preferredStatusBarStyle

 

1

// 仅当前页面状态栏文字颜色 - 系统方法<br>- (UIStatusBarStyle)preferredStatusBarStyle {<br>    if (self.isLightStyle) {<br>        // 白色<br>        return UIStatusBarStyleLightContent;<br>    }else{<br>        // 黑色<br>        if (@available(iOS 13.0, *)) {<br>            return UIStatusBarStyleDarkContent;<br>        } else {<br>            return UIStatusBarStyleDefault; //黑色, 默认值<br>        }<br>    }<br>}

​3、手动触发 preferredStatusBarStyle 更新状态栏颜色

如果依赖返回数据来决定状态栏颜色，可以调用下面方法手动触发preferredStatusBarStyle

 

1	<br>// 手动触发 preferredStatusBarStyle 更新状态栏颜色<br>[self setNeedsStatusBarAppearanceUpdate];

二、同时改变状态栏、导航条颜色

1、将要显示时设置样式。将要消失时恢复原有样式。

 

1

/// 导航栏背景颜色，准备2个颜色，是应对渐变颜色<br>@interface ZBWebViewVC ()<br>@property (nonatomic, copy) NSString *navColorOne;<br>@property (nonatomic, copy) NSString *navColorTwo;<br>@property (nonatomic, strong) UIView *statusBar;<br>@property (nonatomic, assign) BOOL isLightStyle;<br>@end<br>@implementation ZBWebViewVC<br>- (void)viewWillAppear:(BOOL)animated {<br>    [super viewWillAppear:animated];<br>    //设置显示样式，也可以返回数据后调用此方法，根据返回数据决定颜色<br>    [self updateNavColor:@"#ffffff" second:nil fontColor:@"#000000"];<br>    // 手动触发 preferredStatusBarStyle 更新状态栏颜色<br>[self setNeedsStatusBarAppearanceUpdate];<br>}<br>//页面消失，还原导航条颜色<br>- (void)viewWillDisappear:(BOOL)animated {<br>    [super viewWillDisappear:animated];<br>    //恢复webView状态栏为白色<br>    if (@available(iOS 13.0, *)) {<br>        if ([[UIApplication sharedApplication].keyWindow.subviews containsObject:self.statusBar]) {<br>            [self.statusBar removeFromSuperview];<br>        }<br>    } else {<br>        UIView *statusBar = [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"];<br>        if ([statusBar respondsToSelector:@selector(setBackgroundColor:)]) {<br>            statusBar.backgroundColor = UIColor.clearColor;<br>        }<br>    }<br>}<br>/// 更新状态栏颜色<br>- (void)updateStatusBarStyleIsWhite:(BOOL)isWhite{<br>    //修改隐藏导航栏后，状态栏颜色还原<br>    UIColor *bgColor = UIColor.whiteColor;<br>    if (self.navColorOne.length && !isWhite) {<br>        bgColor = [UIColor colorWithHexString:self.navColorOne];<br>    }<br>    if (@available(iOS 13.0, *)) {<br>        if (![[UIApplication sharedApplication].keyWindow.subviews containsObject:self.statusBar]) {<br>            [[UIApplication sharedApplication].keyWindow addSubview:self.statusBar];<br>        }<br>        self.statusBar.backgroundColor = bgColor;<br>    } else {<br>        UIView *statusBar = [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"];<br>        if ([statusBar respondsToSelector:@selector(setBackgroundColor:)]) {<br>            statusBar.backgroundColor = bgColor;<br>        }<br>    }<br>}<br>/// 配置导航条、文字颜色<br>/// @param first 第一种颜色，例 白色：#ffffff<br>/// @param second 第二种颜色，例 黑色：#000000<br>/// @param fontColor title颜色，例 黑色：#000000<br>- (void)updateNavColor:(NSString *)first second:(NSString *)second fontColor:(NSString *)fontColor{<br>    UIColor *topleftColor = [UIColor colorWithHexString:first];<br>    UIColor *bottomrightColor = second ? [UIColor colorWithHexString:second] : topleftColor;<br>    UIColor *fColor;<br>    <br>    if (self.isLightStyle) {<br>        [self.btnLeftOne setImage:[UIImage imageNamed:@"nav_back_white"] forState:UIControlStateNormal];<br>        [self.btnLeftTwo setImage:[UIImage imageNamed:@"nav_close_white"] forState:UIControlStateNormal];<br>        <br>        [self.btnRightOne setImage:[UIImage imageNamed:@"caigoudannew_white"] forState:UIControlStateNormal];<br>        [self.btnRightTwo setImage:[UIImage imageNamed:@"share_white"] forState:UIControlStateNormal];<br>        <br>        fColor = fontColor ? [UIColor colorWithHexString:fontColor] : UIColor.whiteColor;<br>        [self updateStatusBarStyleIsWhite:NO];<br>    }else{<br>        [self.btnLeftOne setImage:[UIImage imageNamed:@"nav_back_black"] forState:UIControlStateNormal];<br>        [self.btnLeftTwo setImage:[UIImage imageNamed:@"nav_close_black"] forState:UIControlStateNormal];<br>        <br>        [self.btnRightOne setImage:[UIImage imageNamed:@"caigoudannew"] forState:UIControlStateNormal];<br>        [self.btnRightTwo setImage:[UIImage imageNamed:@"share_black"] forState:UIControlStateNormal];<br>        <br>        fColor = fontColor ? [UIColor colorWithHexString:fontColor] : UIColor.blackColor;<br>        [self updateStatusBarStyleIsWhite:YES];<br>    }<br>    <br>    // 设置导航条背景图<br>    UIImage *bgImg = [UIImage gradientColorImageFromColors:@[topleftColor, bottomrightColor] gradientType:GradientTypeLeftToRight imgSize:CGSizeMake(XYYScreenW, kNavBarHeight)];<br>    if (@available(iOS 13.0, *)) {<br>        UINavigationBarAppearance *appearance = [[UINavigationBarAppearance alloc] init];<br>        [appearance configureWithOpaqueBackground];<br>        appearance.backgroundImage = bgImg;<br>        appearance.titleTextAttributes = @{NSForegroundColorAttributeName:fColor, NSFontAttributeName:[UIFont systemFontOfSize:17]};<br>        self.navigationController.navigationBar.standardAppearance = appearance;<br>        self.navigationController.navigationBar.scrollEdgeAppearance = appearance;<br>    }else{<br>        self.navigationController.navigationBar.titleTextAttributes =<br>        @{NSForegroundColorAttributeName:fColor, NSFontAttributeName:[UIFont systemFontOfSize:17]};<br>    }<br>    [self.navigationController.navigationBar setBackgroundImage:bgImg forBarMetrics:UIBarMetricsDefault];<br>}<br>#pragma mark - lazy<br>- (UIView *)statusBar{<br>    if (!_statusBar) {<br>        if (@available(iOS 13.0, *)) {<br>            _statusBar = [[UIView alloc] initWithFrame:[UIApplication sharedApplication].keyWindow.windowScene.statusBarManager.statusBarFrame];<br>        }<br>    }<br>    return _statusBar;<br>}

 

2、在需要改变时，调用-updateNavColor:second:fontColor:方法，改变样式

1	[self updateNavColor:self.navColorOne second:self.navColorTwo fontColor:fontColor];

 

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