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引言

  1. 设置状况栏布景色彩的解决计划：

运用新的API 【statusBarManager】

  1. 经过安全区域高度判别是否IphoneX之后的机型：if ([UIApplication sharedApplication].delegate.window.safeAreaInsets.bottom > 0)

I 状况栏布景色彩的适配计划

  • 问题
 [Bugly]  Trapped uncaught exception 'NSInternalInconsistencyException', reason: 'App called -statusBar or -statusBarWindow on UIApplication: this code must be changed as there's no longer a status bar or status bar window. Use the statusBarManager object on the window scene instead.'
  • 旧代码
    UIView *statusBar = [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"];

1.1 运用新的API 【statusBarManager】

  • 解决计划：运用keyWindow.windowScene.statusBarManager 
if (@available(iOS 13.0, *)) {
       UIView *statusBar = [[UIView alloc]initWithFrame:[UIApplication sharedApplication].keyWindow.windowScene.statusBarManager.statusBarFrame] ;
        statusBar.backgroundColor = color;
        [[UIApplication sharedApplication].keyWindow addSubview:statusBar];
    } else {
        // Fallback on earlier versions
        UIView *statusBar = [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"];
           if ([statusBar respondsToSelector:@selector(setBackgroundColor:)]) {
               statusBar.backgroundColor = color;
           }
    }

statusBarFrame

            CGRect rectStatus = [[UIApplication sharedApplication] statusBarFrame];
            //API_DEPRECATED("Use the statusBarManager property of the window scene instead.", ios(2.0, 13.0));
           if (@available(iOS 13.0, *)) {
               rectStatus = [UIApplication sharedApplication].keyWindow.windowScene.statusBarManager.statusBarFrame;
       }

1.2 适配特征场景：状况是有通明或许半通明的作用的场景

  • 弥补：如果整个项目的状况栏（电池栏）都是有色彩的，而且都是不通明的，上面这个办法完全可以应付。 但是如果有状况是有通明或许半通明的作用，上面这个办法仍是不能胜任，越通明越明显；经过一番查找，总算发现问题：

  • 问题：

1、iOS 13之前，可以经过valueForKey 获取UIApplication的statusBar，由于UIApplication是单例，因而，在iOS 12，经过： [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"]拿到的statusBar永远是同一个目标。 2、iOS 13之后，由于苹果不允许运用KVC的valueForKey访问私有特点。经过上面的代码获取statusBar时，发现每次每次获取都调用 alloc：init的办法，从头生成一个statusBar；然后添加到UIApplication的keyWindow上，再设置布景色彩。 因而这个办法屡次调用就会创立多份statusBar，造成内存开销不说，想设置状况栏为为通明，根本没作用。

解决办法：已然定位到问题所在，办法就是确保iOS 13 之后，每次也都能拿到有去只要一个目标。办法有很多，我的办法代码如下：运用 static 合作 gcd

HSSingletonM(QCTStatusBarTool);
+ (void)setStatusBarBackgroundColor4ios13:(UIColor *)color {
    static UIView *statusBar = nil;
    static dispatch_once_t onceToken;
    if (@available(iOS 13.0, *)) {  //iOS 13不允许运用valueForKey、setValue: forKey获取和设置私有特点;
        dispatch_once(&onceToken, ^{
            statusBar = [[UIView alloc] initWithFrame:[UIApplication sharedApplication].statusBarFrame];
            [[UIApplication sharedApplication].keyWindow addSubview:statusBar];
        });
     } else {
         statusBar = [[[UIApplication sharedApplication] valueForKey:@"statusBarWindow"] valueForKey:@"statusBar"];
    }
    if ([statusBar respondsToSelector:@selector(setBackgroundColor:)]) {
        statusBar.backgroundColor = color;
    }
}

II 经过安全区域高度判别是否IphoneX之后的机型

#define isIphoneX [QCT_Common isiPhoneX]
+ (BOOL)isiPhoneX {
        if (@available(iOS 11.0, *)) {
            if ([UIApplication sharedApplication].delegate.window.safeAreaInsets.bottom > 0) {//iphoneX横屏
                 return  YES;
            } else {
                return  NO;
            }
        } else {
            return NO;
        }
}


///*状况栏和导航栏总高度*/
#define kStatusBarHeight (CGFloat)(isIphoneX?(88.0):(64.0))
/*iPhoneX的状况栏高度差值*/
#define kPtatusBarHeight (CGFloat)(isIphoneX?(24.0):(0))
/*底部安全区域远离高度*/
#define kDtatusBarHeight (CGFloat)(isIphoneX?(34.0):(0))

2.1 运用场景1：自定义导航栏内容

导航栏显现公告和标题

iOS小技能：设置状态栏背景颜色(图片)

    navView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, kWidth, kStatusBarHeight)];

2.2 运用场景2：设置状况栏布景图片

iOS小技能：设置状态栏背景颜色(图片)


/**
 用于设置状况栏的布景图片
 */
@property (weak, nonatomic) UIButton *imgLable;
- (UIButton *)imgLable{
    if (nil == _imgLable) {
        UIButton *tmpView = [[UIButton alloc]init];
        _imgLable = tmpView;
        tmpView.userInteractionEnabled = NO;
        [tmpView setBackgroundImage:[UIImage imageNamed:@"img_daiban_topbg_top"] forState:UIControlStateNormal];
        [self addSubview:_imgLable];
        __weak __typeof__(self) weakSelf = self;
        [_imgLable mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.right.equalTo(weakSelf).offset(0);
            make.top.equalTo(weakSelf).offset(0);
            make.height.mas_equalTo(kStatusBarHeight);
//            make.top.equalTo.offset(kAdjustRatio(44));
        }];
    }
    return _imgLable;
}

推荐运用自动布局，和运用API获取高度


#define kstatusBarH [[UIApplication sharedApplication] statusBarFrame].size.height
#define knavHeight  self.navigationController.navigationBar.frame.size.height
//获取状况栏的高度
CGFloat statusHeight = [[UIApplication sharedApplication] statusBarFrame].size.height;
NSLog(@"状况栏高度：%f",statusHeight);
//获取导航栏的高度
CGFloat navHeight = self.navigationController.navigationBar.frame.size.height;
NSLog(@"导航栏高度：%f",navHeight);
//获取tabBar的高度
//1.在tabBarController中运用（你的继承自UITabBarController的VC）
CGFloat tabBarHeight = self.tabBar.frame.size.height;
NSLog(@"tabBar高度：%f",tabBarHeight);
//2.在非tabBarController中运用
UITabBarController *tabBarVC = [[UITabBarController alloc] init];//(这儿取你当时tabBarVC的实例)
CGFloat tabBarHeight = tabBarVC.tabBar.frame.size.height;
NSLog(@"tabBar高度：%f",tabBarHeight);

see also

  • iOS13适配暗黑形式计划：1、设置app不支持Dark Mode 2、拟定深色形式开发标准 https://blog.csdn.net/z929118967/article/details/104293041