1. app 状态栏 黑色变成白色

参考链接：https://www.jianshu.com/p/6653fdc50ad3

   //全局状态栏 白色 AppDelegate -> didFinishLaunchingWithOptions
     [UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleLightContent;
    

2. pch 文件引入的正确姿势

参考链接：https://www.jianshu.com/p/95ea7ad663a6

使用相对路径，其他人gitclone 之后，不会出现找不到pch文件问题

3. 色值转换工具类#fffff -> UIColor

参考链接：https://www.jianshu.com/p/700c7c7cfe9d
我贴出工具类代码。以及在pch中定义代码

 + (UIColor *)GetColor:(NSString *)pColor alpha:(CGFloat) dAlpha
{
    NSString* pStr = [[pColor stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] uppercaseString];
    
    if ([pStr length] < 6) {
        return [UIColor clearColor];
    }
     
    if ([pStr hasPrefix:@"0X"])
        pStr = [pStr substringFromIndex:2];
    if ([pStr hasPrefix:@"#"])
        pStr = [pStr substringFromIndex:1];
    if ([pStr length] != 6)
        return [UIColor clearColor];
    
    // Separate into r, g, b substrings
    NSRange range;
    range.location = 0;
    range.length = 2;
    
    //r
    NSString *rString = [pStr substringWithRange:range];
    
    //g
    range.location = 2;
    NSString *gString = [pStr substringWithRange:range];
    
    //b
    range.location = 4;
    NSString *bString = [pStr substringWithRange:range];
    
    // Scan values
    unsigned int r, g, b;
    [[NSScanner scannerWithString:rString] scanHexInt:&r];
    [[NSScanner scannerWithString:gString] scanHexInt:&g];
    [[NSScanner scannerWithString:bString] scanHexInt:&b];
    
    return [UIColor colorWithRed:((float) r / 255.0f) green:((float) g / 255.0f) blue:((float) b / 255.0f) alpha:dAlpha];
}

//定义主颜色
 #define main_color  [ColorUtil  GetColor:@"#42b5e1" alpha:1]

//方法使用
 view.backgroundColor = main_color;

4. 全局屏幕宽高 与 状态栏高度 包含iphoneX 文件定义

//竖屏幕宽高
#define SCREEN_WIDTH ([UIScreen mainScreen].bounds.size.width)
#define SCREEN_HEIGHT ([UIScreen mainScreen].bounds.size.height)

//设备型号
#define iPhone4 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 960), [[UIScreen mainScreen] currentMode].size) : NO)
#define iPhone5 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(640, 1136), [[UIScreen mainScreen] currentMode].size) : NO)
#define iPhone6 ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(750, 1334), [[UIScreen mainScreen] currentMode].size) : NO)
#define iPhone6Plus ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1242, 2208), [[UIScreen mainScreen] currentMode].size) : NO)
#define iPhone6PlusScale ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1125, 2001), [[UIScreen mainScreen] currentMode].size) : NO)
#define iPhoneX ([UIScreen instancesRespondToSelector:@selector(currentMode)] ? CGSizeEqualToSize(CGSizeMake(1125, 2436), [[UIScreen mainScreen] currentMode].size) : NO)

//导航栏
#define StatusBarHeight (iPhoneX ? 44.f : 20.f)
#define StatusBarAndNavigationBarHeight (iPhoneX ? 88.f : 64.f)
#define TabbarHeight (iPhoneX ? (49.f + 34.f) : (49.f))
#define BottomSafeAreaHeight (iPhoneX ? (34.f) : (0.f))

5. 继续造

参考链接：[https://www.jianshu.com/p/700c7c7cfe9d]

5. 继续造

参考链接：[https://www.jianshu.com/p/700c7c7cfe9d]

5. 继续造

参考链接：[https://www.jianshu.com/p/700c7c7cfe9d]

5. 继续造

参考链接：[https://www.jianshu.com/p/700c7c7cfe9d]

5. 继续造

参考链接：[https://www.jianshu.com/p/700c7c7cfe9d]

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