无比迅速敏捷地开发iOS超精美控件

前言

自从人生第一篇博客《iOS中的预编译指令的初步探究》问世以来 浏览量竟然达到了360多，（路过的大神勿笑！）这些浏览量使我兴奋异常但又令我黯然神伤，为何我会眼里常含泪水？因为国人伸手党达90%！！！区区只有可怜的三个评论，可怜的三个评论~ 没有鼓励~ 没有鲜花~ 也没有谩骂~ 但是我不哭 因为贱人会笑！我深信：

一日伸手党，bug终身随！

这次的东西标题为《无比迅速敏捷地开发iOS超精美控件》！就问你怕不怕！！本人深恶痛绝标题党丫的，所以今天我就绝对会展示一些奇淫巧技！帅气并且超快的撸出一个iOS精美控件！别说我坑你？

上图1

这个我叫它DDClock，所有view都使用Quartz 2D绘制，创建后自动与当前系统对时同步，漂亮、精致、优雅…… （如果你看到这里，你说不漂亮、不精致、不优雅，那么请你出去，我担心我会下手过重，呵呵），想知道怎么弄得？别急！让博主带你手拿菜刀砍电线，一路火光加闪电！！！

设计

在工程界有一个说法：

设计的优秀与否，是导致这个产品成败的关键。

好吧设计先行！想好了再动手！想好了再动手在生活中是很重要，比如小学生和初中生是怎么区分的？区别就是在LOL中他们对技能的施放是否进行周密的思考，所以一些选手一个人直接冲进人堆里，技能啪啪一甩，然后就挂了——小学生！所以嘛，做事情前养成思考的习惯，是脱离小学生群体的重要手段哦~

前面说到一点，DDClock创建后需要自动与当前系统对时同步；所以

1. 我们不妨让DDClock继承UIView，然后重载-(void)drawRect:(CGRect)rect方法，在这个方法中帅气的画出那个时钟所有细节！我们的决心是坚决不使用人民的一张图片！；
2. 然后分析整个DDClock只有指针（时分秒针）和指示上下午的AM、PM会动！所以我们要把这些个东西射成变量！关于指针的运动，我们可以使用定时器，每秒都和系统对时；
3. 我们还要支持主题的切换，那就给DDClock定义一个枚举咯；
4. 然后就这样…
5. 然后就这样这样……

哈~ 在我们精细的设计中，这个DDClock的产品形态竟然出乎的饱满，俗话说的好，打铁要趁热，豆腐趁热吃。我们马上祭出杀器XCode！！我知道你现在已经兴奋了

编码

我们就新建一个项目 叫做DDClockDemo吧，用来测试待会我们设计的DDClock。

然后我们就在项目中新建一个Group（文件夹）吧 ，就命名成DDClock嘛~

再然后嘛，我们就在DDClock的文件夹下新建一个OC对象吧（Cocoa Touch Class）取名字DDClock，让它继承UIView

Nice！！来看看我们的工程目录结构 图2

好！我们要开始写代码咯

//
//  DDClock.h
//  Created by David on 15/1/26.
//  博客：https://daiweilai.github.io
//  github：https://github.com/daiweilai/
//  Copyright (c) 2015年 DavidDay. All rights reserved.
// 

#import <UIKit/UIKit.h>
#define DDClockSize 200 //默认时钟的长宽都为200
#if ! __has_feature(objc_arc)
#error "需要开启ARC"
#endif

@protocol DDLockDelegate 
@optional
-(UIColor*)rimColor;
-(UIColor*)markColor;
-(UIColor*)faceColor;
-(UIColor*)fontColor;
-(UIColor*)secondHandColor;
-(UIColor*)hourAndMinuteHandColor;
@end


@interface DDClock : UIView
@property (weak, nonatomic) id delegate;
typedef NS_ENUM(NSUInteger, DDClockTheme) { //弄一个枚举类型用来更改主题
    DDClockThemeDefault = 0,
    DDClockThemeDark,
    DDClockThemeModerm
};
//DDClock的构造方法 delegate:代理
-(instancetype)initWithDelegate:(id)delegate frame:(CGRect)frame;
///DDClock的构造方法 theme:主题 
-(instancetype)initWithTheme:(DDClockTheme)theme frame:(CGRect)frame;
@end

//
//  DDClock.m
//  Created by David on 15/1/26.
//  博客：https://daiweilai.github.io
//  github：https://github.com/daiweilai/
//  Copyright (c) 2015年 DavidDay. All rights reserved.
//

#import "DDClock.h"

@interface DDClock(){
    //// 声明颜色
    UIColor* rimColor;
    UIColor* faceColor;
    UIColor* markColor;
    UIColor* secondHandColor;
    UIColor* fontColor;
    UIColor* hourAndMinuteHandColor;
    DDClockTheme _theme;
    float _scale;
    CGPoint _centerPoint;
}
@end


@implementation DDClock


-(instancetype)initWithDelegate:(id)delegate frame:(CGRect)frame{
    //防止用户在构建的时候传入的height和widt不一样 因为时钟是圆的所以强制把他们变成长宽一样
    CGFloat size = frame.size.height>frame.size.width?frame.size.height:frame.size.width;
    CGRect realRect = CGRectMake(frame.origin.x, frame.origin.y, size, size);
    self = [self initWithFrame:realRect];
    if (self) {
        _scale = realRect.size.height / DDClockSize; //放大缩小的比例系数
        _centerPoint = CGPointMake(size/2, size/2); //中心点
        //先使用默认的颜色初始化 防止用户没有调用delegate方法
        rimColor = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 1];
        faceColor = [UIColor colorWithRed: 1 green: 1 blue: 1 alpha: 1];
        markColor = [UIColor colorWithRed:  160.0/255.0 green: 160.0/255.0 blue: 160.0/255.0 alpha: 1];
        secondHandColor = [UIColor colorWithRed: 86.0/255.0 green: 232.0/255.0 blue: 157.0/255.0 alpha: 1];
        fontColor = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 1];
        hourAndMinuteHandColor = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 1];

		//判断用户是否使用了delegate的方法
        if ([delegate respondsToSelector:NSSelectorFromString(@"rimColor")]) {
            rimColor = [delegate rimColor];
        }
        if ([delegate respondsToSelector:NSSelectorFromString(@"faceColor")]) {
            faceColor = [delegate faceColor];
        }
        if ([delegate respondsToSelector:NSSelectorFromString(@"markColor")]) {
            markColor = [delegate markColor];
        }
        if ([delegate respondsToSelector:NSSelectorFromString(@"fontColor")]) {
            fontColor = [delegate fontColor];
        }
        if ([delegate respondsToSelector:NSSelectorFromString(@"hourAndMinuteHandColor")]) {
            hourAndMinuteHandColor = [delegate hourAndMinuteHandColor];
        }
        if ([delegate respondsToSelector:NSSelectorFromString(@"secondHandColor")]) {
            secondHandColor = [delegate secondHandColor];
        }
		
		//秒针使用图片画出来
        UIImage *img = [self drawSecondHandWithColor:secondHandColor scale:_scale frameSize:CGSizeMake(size, size) currentAngle:[self secondAngleFromDate:[NSDate new]]];
        UIImageView *imgV = [[UIImageView alloc] initWithImage:img];
        imgV.frame = CGRectMake(0 , 0, size, size);
        [self addSubview:imgV];

        //1.创建动画并指定动画属性
        CABasicAnimation *basicAnimation=[CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];

        //2.设置动画属性初始值、结束值
        //    basicAnimation.fromValue=[NSNumber numberWithInt:M_PI_2];//
        basicAnimation.toValue=[NSNumber numberWithFloat:2*M_PI];

        //设置其他动画属性
        basicAnimation.duration=60.0;//60秒转一圈
        basicAnimation.autoreverses=false;//旋转后再旋转到原来的位置
        basicAnimation.repeatCount = CGFLOAT_MAX;//无限循环的执行动画

        imgV.layer.anchorPoint = CGPointMake(0.5, 0.5);//设置秒针的旋转中心 就是这个view的中心！


        //4.添加动画到图层，注意key相当于给动画进行命名，以后获得该动画时可以使用此名称获取
        [imgV.layer addAnimation:basicAnimation forKey:@"Rotation"];



        //当这个DDClock被创建出来的时候，就新建一个定时器，1分钟执行一次“onTimer”方法 其实这里做是不够好的 因为这样不能确保秒针走到12的时候更新 时针和分针 要想解决也很容易 最近生病 难受 不想解决了~~
        [NSTimer scheduledTimerWithTimeInterval:60.0 target:self selector:@selector(onTimer) userInfo:nil repeats:YES];
    }
    self.backgroundColor = [UIColor clearColor];
    return self;

}


///构造方法 使用默认主题
-(instancetype)initWithTheme:(DDClockTheme)theme frame:(CGRect)frame{
    //防止用户在构建的时候传入的height和widt不一样 因为时钟是圆的所以强制把他们变成一样
    CGFloat size = frame.size.height>frame.size.width?frame.size.height:frame.size.width;
    CGRect realRect = CGRectMake(frame.origin.x, frame.origin.y, size, size);
    self = [self initWithFrame:realRect];
    if (self) {
        _theme = theme;
        _scale = realRect.size.height / DDClockSize;
        _centerPoint = CGPointMake(size/2, size/2);

        switch (theme) { //根据主题绘制不同的颜色
            case DDClockThemeDefault:
                rimColor = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 1];
                faceColor = [UIColor colorWithRed: 1 green: 1 blue: 1 alpha: 1];
                markColor = [UIColor colorWithRed:  160.0/255.0 green: 160.0/255.0 blue: 160.0/255.0 alpha: 1];
                secondHandColor = [UIColor colorWithRed: 86.0/255.0 green: 232.0/255.0 blue: 157.0/255.0 alpha: 1];
                fontColor = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 1];
                hourAndMinuteHandColor = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 1];
                break;

            case DDClockThemeDark:
                rimColor = [UIColor colorWithRed: 66.0/255 green: 66.0/255 blue: 66.0/255 alpha: 1];
                faceColor = [UIColor colorWithRed: 66.0/255 green: 66.0/255 blue: 66.0/255 alpha: 1];
                markColor = [UIColor colorWithRed:  1 green: 1 blue: 1 alpha: 1];
                secondHandColor = [UIColor colorWithRed: 32.0/255.0 green: 250.0/255.0 blue: 200.0/255.0 alpha: 1];
                fontColor = [UIColor colorWithRed: 1 green: 1 blue: 1 alpha: 1];
                hourAndMinuteHandColor = [UIColor colorWithRed: 1 green: 1 blue: 1 alpha: 1];
                break;

            case DDClockThemeModerm:
                rimColor = [UIColor colorWithRed: 60.0/255 green: 90.0/255 blue: 110.0/255 alpha: 1];
                faceColor = [UIColor colorWithRed: 1 green: 1 blue: 1 alpha: 1];
                markColor = [UIColor colorWithRed:  160.0/255.0 green: 160.0/255.0 blue: 160.0/255.0 alpha: 1];
                secondHandColor = [UIColor colorWithRed: 210.0/255.0 green: 0 blue: 10.0/255.0 alpha: 1];
                fontColor = [UIColor colorWithRed: 210.0/255.0 green: 0 blue: 10.0/255.0 alpha: 1];
                hourAndMinuteHandColor = [UIColor colorWithRed: 60.0/255 green: 90.0/255 blue: 110.0/255 alpha: 1];
                break;
            default:
                rimColor = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 1];
                faceColor = [UIColor colorWithRed: 1 green: 1 blue: 1 alpha: 1];
                markColor = [UIColor colorWithRed:  160.0/255.0 green: 160.0/255.0 blue: 160.0/255.0 alpha: 1];
                secondHandColor = [UIColor colorWithRed: 86.0/255.0 green: 232.0/255.0 blue: 157.0/255.0 alpha: 1];
                fontColor = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 1];
                hourAndMinuteHandColor = [UIColor colorWithRed: 0 green: 0 blue: 0 alpha: 1];
                break;
        }

        if ([_delegate rimColor]) {
            rimColor = [_delegate rimColor];
        }
        if ([_delegate faceColor]) {
           faceColor = [_delegate faceColor];
        }
        if ([_delegate markColor]) {
            markColor = [_delegate markColor];
        }
        if ([_delegate fontColor]) {
            fontColor = [_delegate fontColor];
        }
        if ([_delegate faceColor]) {
            faceColor = [_delegate faceColor];
        }
        if ([_delegate hourAndMinuteHandColor]) {
            hourAndMinuteHandColor = [_delegate hourAndMinuteHandColor];
        }
        if ([_delegate secondHandColor]) {
            secondHandColor = [_delegate secondHandColor];
        }



        UIImage *img = [self drawSecondHandWithColor:secondHandColor scale:_scale frameSize:CGSizeMake(size, size) currentAngle:[self secondAngleFromDate:[NSDate new]]];
        UIImageView *imgV = [[UIImageView alloc] initWithImage:img];
        imgV.frame = CGRectMake(0 , 0, size, size);
        [self addSubview:imgV];

        //1.创建动画并指定动画属性
        CABasicAnimation *basicAnimation=[CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];

        //2.设置动画属性初始值、结束值
        //    basicAnimation.fromValue=[NSNumber numberWithInt:M_PI_2];
        basicAnimation.toValue=[NSNumber numberWithFloat:2*M_PI];

        //设置其他动画属性
        basicAnimation.duration=60.0;
        basicAnimation.autoreverses=false;//旋转后再旋转到原来的位置
        basicAnimation.repeatCount = CGFLOAT_MAX;

        imgV.layer.anchorPoint = CGPointMake(0.5, 0.5);


        //4.添加动画到图层，注意key相当于给动画进行命名，以后获得该动画时可以使用此名称获取
        [imgV.layer addAnimation:basicAnimation forKey:@"Rotation"];



        //当这个View被创建出来的时候，就新建一个定时器，1分钟执行一次“onTimer”方法
        [NSTimer scheduledTimerWithTimeInterval:60.0 target:self selector:@selector(onTimer) userInfo:nil repeats:YES];
    }
    self.backgroundColor = [UIColor clearColor];
    return self;
}

//每秒钟刷新视图一次
-(void)onTimer{
    dispatch_async(dispatch_get_main_queue(), ^{
        [self setNeedsDisplay];//这个方法调用后就会刷新这个View
    });
}

//View刷新这个方法就被调用，就会重新画出这个View
-(void)drawRect:(CGRect)rect{
    [super drawRect:rect];
    //获取当前的时间进行View的绘制
    [self drawDDClockWithScale:_scale centerPoint:_centerPoint currentDate:[NSDate new]];


}

////画出秒针
-(UIImage*)drawSecondHandWithColor:(UIColor*)color scale:(CGFloat)scale frameSize:(CGSize)size currentAngle:(float)currentAngle{
    UIGraphicsBeginImageContext(size);
    CGContextRef context = UIGraphicsGetCurrentContext();
    //// secondHand Drawing
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, size.height/2, size.height/2);
    CGContextRotateCTM(context, (currentAngle - 90) * M_PI / 180);
    CGContextScaleCTM(context, scale, scale);

    UIBezierPath* secondHandPath = UIBezierPath.bezierPath;
    [secondHandPath moveToPoint: CGPointMake(4.96, -4.87)];
    [secondHandPath addCurveToPoint: CGPointMake(6.93, -0.92) controlPoint1: CGPointMake(6.07, -3.76) controlPoint2: CGPointMake(6.73, -2.37)];
    [secondHandPath addLineToPoint: CGPointMake(66.01, -0.92)];
    [secondHandPath addLineToPoint: CGPointMake(66.01, 0.08)];
    [secondHandPath addLineToPoint: CGPointMake(7.01, 0.08)];
    [secondHandPath addCurveToPoint: CGPointMake(4.96, 5.03) controlPoint1: CGPointMake(7.01, 1.87) controlPoint2: CGPointMake(6.32, 3.66)];
    [secondHandPath addCurveToPoint: CGPointMake(-4.94, 5.03) controlPoint1: CGPointMake(2.22, 7.76) controlPoint2: CGPointMake(-2.21, 7.76)];
    [secondHandPath addCurveToPoint: CGPointMake(-4.94, -4.87) controlPoint1: CGPointMake(-7.68, 2.29) controlPoint2: CGPointMake(-7.68, -2.14)];
    [secondHandPath addCurveToPoint: CGPointMake(4.96, -4.87) controlPoint1: CGPointMake(-2.21, -7.61) controlPoint2: CGPointMake(2.22, -7.61)];
    [secondHandPath closePath];
    [color setFill];
    [secondHandPath fill];
    CGContextRestoreGState(context);
    UIImage *img = [UIImage new];
    img = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return img;
}


///把当前的时间转换为时针、分针、角度
-(NSArray*)HourAndMinuteAngleFromDate:(NSDate*)date{
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"HH"];//强制24小时格式
    float hourf = [[formatter stringFromDate:date] floatValue];
    [formatter setDateFormat:@"mm"];
    float minutef = [[formatter stringFromDate:date] floatValue];
    if (hourf > 12) {//大于24小时我们就减去12小时嘛 比较好算角度呀
        hourf = (hourf - 12)*30 + 30*(minutef/60); //一小时30°
    }else{
        hourf = hourf*30 + 30*(minutef/60);
    }
    minutef = minutef*6;//一分钟6°
    NSNumber *hour =  [[NSNumber alloc] initWithInt:hourf];
    NSNumber *minute = [[NSNumber alloc] initWithInt:minutef];
    NSArray *arr = [[NSArray alloc] initWithObjects:hour,minute, nil];
    return arr;
}

//因为秒针的实时性 所以单独算出当前秒针的角度
-(float)secondAngleFromDate:(NSDate*)date{
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"ss"];
    float secondf = [[formatter stringFromDate:date] floatValue];
    secondf = secondf*6;//一分钟6°
    return secondf;
}

//绘制图形的主要方法
- (void)drawDDClockWithScale: (CGFloat)scale centerPoint:(CGPoint)centerPoint currentDate:(NSDate*)currentDate;
{
    NSArray *arr = [self HourAndMinuteAngleFromDate:currentDate];
    NSNumber *hourAngle = (NSNumber*)[arr objectAtIndex:0];
    NSNumber *minuteAngle = (NSNumber*)[arr objectAtIndex:1];



    //获取绘图上下文
    CGContextRef context = UIGraphicsGetCurrentContext();

    //// 画出边框
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextScaleCTM(context, scale, scale);

    UIBezierPath* rimPath = [UIBezierPath bezierPathWithOvalInRect: CGRectMake(-100, -100, 200, 200)];
    [rimColor setFill];
    [rimPath fill];

    CGContextRestoreGState(context);


    //// 画出钟表盘
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextScaleCTM(context, scale, scale);

    UIBezierPath* facePath = [UIBezierPath bezierPathWithOvalInRect: CGRectMake(-92.99, -92.92, 186, 186)];
    [faceColor setFill];
    [facePath fill];

    CGContextRestoreGState(context);


    //// 上午下午时间的判断
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextScaleCTM(context, scale, scale);

    CGRect aMPMRect = CGRectMake(-15.99, -42.92, 32, 18);
    NSMutableParagraphStyle* aMPMStyle = NSMutableParagraphStyle.defaultParagraphStyle.mutableCopy;
    aMPMStyle.alignment = NSTextAlignmentCenter;

    NSDictionary* aMPMFontAttributes = @{NSFontAttributeName: [UIFont fontWithName: @"Helvetica-Bold" size: 15], NSForegroundColorAttributeName: fontColor, NSParagraphStyleAttributeName: aMPMStyle};
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    [formatter setDateFormat:@"HH"];//强制24小时格式
    float hourf = [[formatter stringFromDate:currentDate] floatValue];//为了节省系统资源 延迟一分钟才会更新 因为这个方法是一分钟 调用一次的
    NSString *str = hourf<12?@"AM":@"PM";
    [str drawInRect: aMPMRect withAttributes: aMPMFontAttributes];

    CGContextRestoreGState(context);


    //// 画出时针
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextRotateCTM(context, [hourAngle floatValue] * M_PI / 180);
    CGContextScaleCTM(context, scale, scale);

    UIBezierPath* hourHandPath = [UIBezierPath bezierPathWithRect: CGRectMake(-4.99, -52.46, 10, 43.54)];
    [hourAndMinuteHandColor setFill];
    [hourHandPath fill];

    CGContextRestoreGState(context);


    //// 画出分针
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextRotateCTM(context, ([minuteAngle floatValue]) * M_PI / 180);
    CGContextScaleCTM(context, scale, scale);

    UIBezierPath* minuteHandPath = [UIBezierPath bezierPathWithRect: CGRectMake(-2.99, -64.92, 6, 55.92)];
    [hourAndMinuteHandColor setFill];
    [minuteHandPath fill];

    CGContextRestoreGState(context);





    //// 画出中间的圆圈
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextScaleCTM(context, scale, scale);

    UIBezierPath* centreEmptyOvalPath = UIBezierPath.bezierPath;
    [centreEmptyOvalPath moveToPoint: CGPointMake(-4.42, -4.35)];
    [centreEmptyOvalPath addCurveToPoint: CGPointMake(-4.42, 4.33) controlPoint1: CGPointMake(-6.82, -1.95) controlPoint2: CGPointMake(-6.82, 1.93)];
    [centreEmptyOvalPath addCurveToPoint: CGPointMake(4.26, 4.33) controlPoint1: CGPointMake(-2.02, 6.73) controlPoint2: CGPointMake(1.86, 6.73)];
    [centreEmptyOvalPath addCurveToPoint: CGPointMake(4.26, -4.35) controlPoint1: CGPointMake(6.66, 1.93) controlPoint2: CGPointMake(6.66, -1.95)];
    [centreEmptyOvalPath addCurveToPoint: CGPointMake(-4.42, -4.35) controlPoint1: CGPointMake(1.86, -6.75) controlPoint2: CGPointMake(-2.02, -6.75)];
    [centreEmptyOvalPath closePath];
    [centreEmptyOvalPath moveToPoint: CGPointMake(7.78, -7.7)];
    [centreEmptyOvalPath addCurveToPoint: CGPointMake(7.78, 7.85) controlPoint1: CGPointMake(12.08, -3.41) controlPoint2: CGPointMake(12.08, 3.56)];
    [centreEmptyOvalPath addCurveToPoint: CGPointMake(-7.77, 7.85) controlPoint1: CGPointMake(3.49, 12.15) controlPoint2: CGPointMake(-3.48, 12.15)];
    [centreEmptyOvalPath addCurveToPoint: CGPointMake(-7.77, -7.7) controlPoint1: CGPointMake(-12.07, 3.56) controlPoint2: CGPointMake(-12.07, -3.41)];
    [centreEmptyOvalPath addCurveToPoint: CGPointMake(7.78, -7.7) controlPoint1: CGPointMake(-3.48, -12) controlPoint2: CGPointMake(3.49, -12)];
    [centreEmptyOvalPath closePath];
    [hourAndMinuteHandColor setFill];
    [centreEmptyOvalPath fill];

    CGContextRestoreGState(context);


    //// 画出“12”
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextScaleCTM(context, scale, scale);

    CGRect text12Rect = CGRectMake(-10, -82, 21, 17);
    {
        NSString* textContent = @"12";
        NSMutableParagraphStyle* text12Style = NSMutableParagraphStyle.defaultParagraphStyle.mutableCopy;
        text12Style.alignment = NSTextAlignmentCenter;

        NSDictionary* text12FontAttributes = @{NSFontAttributeName: [UIFont fontWithName: @"Helvetica-Bold" size: 18], NSForegroundColorAttributeName: fontColor, NSParagraphStyleAttributeName: text12Style};

        [textContent drawInRect: CGRectOffset(text12Rect, 0, (CGRectGetHeight(text12Rect) - [textContent boundingRectWithSize: text12Rect.size options: NSStringDrawingUsesLineFragmentOrigin attributes: text12FontAttributes context: nil].size.height) / 2) withAttributes: text12FontAttributes];
    }

    CGContextRestoreGState(context);


    //// 画出“3”
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextScaleCTM(context, scale, scale);

    CGRect text3Rect = CGRectMake(72, -9, 12, 17);
    {
        NSString* textContent = @"3";
        NSMutableParagraphStyle* text3Style = NSMutableParagraphStyle.defaultParagraphStyle.mutableCopy;
        text3Style.alignment = NSTextAlignmentCenter;

        NSDictionary* text3FontAttributes = @{NSFontAttributeName: [UIFont fontWithName: @"Helvetica-Bold" size: 18], NSForegroundColorAttributeName: fontColor, NSParagraphStyleAttributeName: text3Style};

        [textContent drawInRect: CGRectOffset(text3Rect, 0, (CGRectGetHeight(text3Rect) - [textContent boundingRectWithSize: text3Rect.size options: NSStringDrawingUsesLineFragmentOrigin attributes: text3FontAttributes context: nil].size.height) / 2) withAttributes: text3FontAttributes];
    }

    CGContextRestoreGState(context);


    //// 画出“6”
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextScaleCTM(context, scale, scale);

    CGRect text6Rect = CGRectMake(-4, 65, 12, 17);
    {
        NSString* textContent = @"6";
        NSMutableParagraphStyle* text6Style = NSMutableParagraphStyle.defaultParagraphStyle.mutableCopy;
        text6Style.alignment = NSTextAlignmentCenter;

        NSDictionary* text6FontAttributes = @{NSFontAttributeName: [UIFont fontWithName: @"Helvetica-Bold" size: 18], NSForegroundColorAttributeName: fontColor, NSParagraphStyleAttributeName: text6Style};

        [textContent drawInRect: CGRectOffset(text6Rect, 0, (CGRectGetHeight(text6Rect) - [textContent boundingRectWithSize: text6Rect.size options: NSStringDrawingUsesLineFragmentOrigin attributes: text6FontAttributes context: nil].size.height) / 2) withAttributes: text6FontAttributes];
    }

    CGContextRestoreGState(context);


    //// 画出“9”
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextScaleCTM(context, scale, scale);

    CGRect text9Rect = CGRectMake(-82, -8, 12, 17);
    {
        NSString* textContent = @"9";
        NSMutableParagraphStyle* text9Style = NSMutableParagraphStyle.defaultParagraphStyle.mutableCopy;
        text9Style.alignment = NSTextAlignmentCenter;

        NSDictionary* text9FontAttributes = @{NSFontAttributeName: [UIFont fontWithName: @"Helvetica-Bold" size: 18], NSForegroundColorAttributeName: fontColor, NSParagraphStyleAttributeName: text9Style};

        [textContent drawInRect: CGRectOffset(text9Rect, 0, (CGRectGetHeight(text9Rect) - [textContent boundingRectWithSize: text9Rect.size options: NSStringDrawingUsesLineFragmentOrigin attributes: text9FontAttributes context: nil].size.height) / 2) withAttributes: text9FontAttributes];
    }

    CGContextRestoreGState(context);


    //// 画出表盘刻度
    CGContextSaveGState(context);
    CGContextTranslateCTM(context, centerPoint.x, centerPoint.y);
    CGContextScaleCTM(context, scale, scale);

    UIBezierPath* markPath = UIBezierPath.bezierPath;
    [markPath moveToPoint: CGPointMake(-2, -85)];
    [markPath addLineToPoint: CGPointMake(2, -85)];
    [markPath addLineToPoint: CGPointMake(2, -93)];
    [markPath addLineToPoint: CGPointMake(-2, -93)];
    [markPath addLineToPoint: CGPointMake(-2, -85)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(-1, 93)];
    [markPath addLineToPoint: CGPointMake(3, 93)];
    [markPath addLineToPoint: CGPointMake(3, 85)];
    [markPath addLineToPoint: CGPointMake(-1, 85)];
    [markPath addLineToPoint: CGPointMake(-1, 93)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(-45, -72.15)];
    [markPath addLineToPoint: CGPointMake(-41.54, -74.15)];
    [markPath addLineToPoint: CGPointMake(-45.54, -81.08)];
    [markPath addLineToPoint: CGPointMake(-49, -79.08)];
    [markPath addLineToPoint: CGPointMake(-45, -72.15)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(44.87, 81.5)];
    [markPath addLineToPoint: CGPointMake(48.33, 79.5)];
    [markPath addLineToPoint: CGPointMake(44.33, 72.57)];
    [markPath addLineToPoint: CGPointMake(40.87, 74.57)];
    [markPath addLineToPoint: CGPointMake(44.87, 81.5)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(-75.07, -40)];
    [markPath addLineToPoint: CGPointMake(-73.07, -43.46)];
    [markPath addLineToPoint: CGPointMake(-80, -47.46)];
    [markPath addLineToPoint: CGPointMake(-82, -44)];
    [markPath addLineToPoint: CGPointMake(-75.07, -40)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(79.58, 48.13)];
    [markPath addLineToPoint: CGPointMake(81.58, 44.67)];
    [markPath addLineToPoint: CGPointMake(74.65, 40.67)];
    [markPath addLineToPoint: CGPointMake(72.65, 44.13)];
    [markPath addLineToPoint: CGPointMake(79.58, 48.13)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(-85, 2)];
    [markPath addLineToPoint: CGPointMake(-85, -2)];
    [markPath addLineToPoint: CGPointMake(-93, -2)];
    [markPath addLineToPoint: CGPointMake(-93, 2)];
    [markPath addLineToPoint: CGPointMake(-85, 2)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(93, 1)];
    [markPath addLineToPoint: CGPointMake(93, -3)];
    [markPath addLineToPoint: CGPointMake(85, -3)];
    [markPath addLineToPoint: CGPointMake(85, 1)];
    [markPath addLineToPoint: CGPointMake(93, 1)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(-72.57, 44)];
    [markPath addLineToPoint: CGPointMake(-74.57, 40.54)];
    [markPath addLineToPoint: CGPointMake(-81.5, 44.54)];
    [markPath addLineToPoint: CGPointMake(-79.5, 48)];
    [markPath addLineToPoint: CGPointMake(-72.57, 44)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(81.08, -45.87)];
    [markPath addLineToPoint: CGPointMake(79.08, -49.33)];
    [markPath addLineToPoint: CGPointMake(72.15, -45.33)];
    [markPath addLineToPoint: CGPointMake(74.15, -41.87)];
    [markPath addLineToPoint: CGPointMake(81.08, -45.87)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(-39.67, 75.07)];
    [markPath addLineToPoint: CGPointMake(-43.13, 73.07)];
    [markPath addLineToPoint: CGPointMake(-47.13, 80)];
    [markPath addLineToPoint: CGPointMake(-43.67, 82)];
    [markPath addLineToPoint: CGPointMake(-39.67, 75.07)];
    [markPath closePath];
    [markPath moveToPoint: CGPointMake(48.46, -79.58)];
    [markPath addLineToPoint: CGPointMake(45, -81.58)];
    [markPath addLineToPoint: CGPointMake(41, -74.65)];
    [markPath addLineToPoint: CGPointMake(44.46, -72.65)];
    [markPath addLineToPoint: CGPointMake(48.46, -79.58)];
    [markPath closePath];
    [markColor setFill];
    [markPath fill];

    CGContextRestoreGState(context);
}

@end

xcode6.1 SDK8.1测试没问题！

代码中已经有无比详细的注释，而且该控件简单地令人发指~ 我相信你看的懂得！

我想肯定有同学已经排着队，准备好了板砖，鸡蛋什么的，“博主！你妹！说好的无比迅速敏捷地开发iOS超精美控件 哪里迅速哪里敏捷？说好的奇淫巧技呢？”

都说心急吃不了热豆腐，我有说文章结束了么？文章只是出轨而已了……

PaintCode

代码是写出来了， 但是在-(void)drawRect:(CGRect)rect方法中一笔一笔的勾画出来，确实是累人~

所以我要祭出这次文章的纯24K真大杀器——PaintCode

图3

为何要称PaintCode为终极大杀器？因为它真的很凶！如果说我们刚刚的项目需要花2~3个小时才能完成 而有了PaintCode之后我们只需要10~20分钟！！！就问你怕不怕！！！

售价$99的PaintCode用起来就是爽！

我突然想起自己的一个故事，有一年上大学，父亲到车站来送我，临上车前，父亲叮嘱我等他一会儿他要过铁道对面要给我买点东西，说我一个人过日子会很艰难，我看见他戴着黑布小帽，穿着黑布大马褂，深青布棉袍，蹒跚地走到铁道边，慢慢探身下去，尚不大难。可是他穿过铁道，要爬上那边月台，就不容易了。他用两手攀着上面，两脚再向上缩；他肥胖的身子向左微倾，显出努力的样子。这时我看见他的背影，我的泪很快地流下来了。我赶紧拭干了泪。怕他看见，也怕别人看见。我再向外看时，他已抱了一个黑塑料袋子往回走了。过铁道时，他先将塑料袋散放在地上，自己慢慢爬下，再抱起塑料袋走。到这边时，我赶紧去搀他。他和我走到车上，将塑料袋一股脑儿放在我的皮大衣上：“最新的全是外国的动作片、游戏、音乐光盘，好好照顾自己”，想起老父亲微薄的退休金，我就有点气愤：“爸，你怎么……”，父亲赶忙凑到我的耳边：“D版的，八国联军当年抢得钱是该要回来的”，我：“……”

好了我的故事讲完了 你们应该知道怎么找PaintCode了额

我么开始PaintCode之旅吧

打开Paint

图4

就像PS一样只要你画的出，就能生成代码（支持swift哦）

我们就试试画出DDClock来吧

选中Oval

图5

按住shift键拖出一个规则的圆形 ，填充颜色，这个就是代码中的rimPath

图6

再次选中Oval，同样的方法在拖一个圆出来，

图7

这个就是代码中的facePath。

在PaintCode中尽量将所有的图形、颜色都自己取一个名字，比如我把第一个Oval取名字rim，第二个Oval取名字face

这样表盘的边框和中间都出来了额，接下来就是表盘的刻度了

选中rect

图8

拖出其中的一个小刻度

图9

然后选中这个小刻度复制出另一个小刻度，放到第一个刻度的对面，就像这样

图10

然后按住shift键 同时选中这两个小刻度，点击工具栏的Union

图11

这样两个小刻度就成为了一个对象，这时点击右侧的Transforms，就会出现旋转图形的操作，把旋转中心（图12中绿色的瞄准星）拖到钟表的中心位置

图12

这样设置Rotation的参数就可以围绕整个钟表旋转这个刻度了，所以马上同时复制这个刻度5份，分别操作旋转，让它们分别旋转30、60、90、120、150这样所有的刻度都出来了，然后再一次性的选中所有刻度Union一次，把所有刻度合并成一个图形。

图13

接下来就选中Text工具

图14

选中恰当的字体和大小，画出刻度值和上下午提示的AM/PM

图15

最后是时针、分针和秒针了，做法是雷同的，聪明的你肯定知道该怎么做了，反正就是使用规则图形，通过Union、Intersection、Difference的操作产生不规则的图形

图16

图17

图18

最后看我的项目大体情况；

到了这一步其实就可以直接复制代码走人就OK拉

然后稍微写写项目的逻辑代码，测试，OK啦，是不是把2、3个小时的事情10分钟完成了？哈哈哈

其实PaintCode的强大远不止于此，里面的Variables的功能，可以将图形中的某个值设置成变量，比如代码中的hourAngle、 minuteAngle 、 secondAngle 等，DDClock目前的大小的是固定的200x200，其实使用Variables添加scale的变量，还可以动态的修改所有图形的大小！当然还有Frame的使用啦……

后记

对于PaintCode博主也只是浅尝而止，更多强大的功能，同学们还是自己挖掘吧。

这里附上官网的地址，PaintCode 里面有视频教程，文档等（视频是油管网的，所以需要爬梯子，呵呵，你懂的）

这里也附上我写的项目源代码 DDClock（尼玛！github使用代理比直接访问更快，你能忍？）

这个礼拜，完成了毕设的主题和一些细节，大概是设计一套移动客户端和后台服务器安全交互的方案，涉及到各种安全通信，可靠性传输，内容加解密等内容，我会把这个设想写到博客上的；

女朋友回老家了，剩下自己一个人撸啊撸T_T;

天杀的12306买了两天都没买到回家的票，明明买不到票，却还要写着有余票，哎，最后我决定坐头等舱回家了~

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