ios 可滑动标尺，可深度自定义样式——金融类app常用控件

有朋友在使用标尺的过程中发现了一些问题，特此对标尺升级了一下，有需要的朋友请自己去下载，文章底部有标尺的样式截图

https://github.com/clarkIsMe/scrollRulerView

或者采用cocoapods 安装

pod 'TTScrollRuler'
//安装成功之后
#import <TTScrollRulerView.h>

使用方法介绍

    /**
     *  经典标尺 样式
     **/
    TTScrollRulerView *rulerClassic = [[TTScrollRulerView alloc] initWithFrame:CGRectMake(50, 50+100*0, cy_ScreenW-100, 100)];
    [self.view addSubview:rulerClassic];
    rulerClassic.rulerDelegate = self;
    //在执行此方法前，可先设定参数：最小值，最大值，横向，纵向等等  ------若不设定，则按照默认值绘制
    [rulerClassic classicRuler];
    
    
    /**
     *  自定义标尺 样式
     **/
    TTScrollRulerView *rulerCustom = [[TTScrollRulerView alloc] initWithFrame:CGRectMake(50, 50+100*1, cy_ScreenW-100, 100)];
    [self.view addSubview:rulerCustom];
    rulerCustom.rulerDelegate = self;
    //在执行此方法前，可先设定参数：最小值，最大值，横向，纵向等等   ------若不设定，则按照默认值绘制
    [rulerCustom customRulerWithLineColor:customColorMake(0, 0, 0) NumColor:[UIColor redColor] scrollEnable:YES];
    
    
    /**
     *  横向滚动，刻度位于上方
     **/
    TTScrollRulerView *rulerHUP = [[TTScrollRulerView alloc] initWithFrame:CGRectMake(50, 50+100*2, cy_ScreenW-100, 100)];
    [self.view addSubview:rulerHUP];
    rulerHUP.rulerDelegate = self;
    //设置滚动方向，默认横向滚动
    rulerHUP.rulerDirection = RulerDirectionHorizontal;
    //设置刻度位置，默认在上方
    rulerHUP.rulerFace = RulerFace_up_left;
    [rulerHUP classicRuler];
    
    
    /**
     *  横向滚动，刻度位于下方
     **/
    TTScrollRulerView *rulerHDOWN = [[TTScrollRulerView alloc] initWithFrame:CGRectMake(50, 50+100*3, cy_ScreenW-100, 100)];
    [self.view addSubview:rulerHDOWN];
    rulerHDOWN.rulerDelegate = self;
    //设置滚动方向，默认横向滚动
    rulerHDOWN.rulerDirection = RulerDirectionHorizontal;
    //设置刻度位置，下方
    rulerHDOWN.rulerFace = RulerFace_down_right;
    [rulerHDOWN classicRuler];
    
    
    
    /**
     *  纵向滚动，刻度位于左边
     **/
    TTScrollRulerView *rulerVUP = [[TTScrollRulerView alloc] initWithFrame:CGRectMake(50, 50+100*4, 100, 250)];
    [self.view addSubview:rulerVUP];
    rulerVUP.rulerDelegate = self;
    //设置滚动方向，默认横向滚动
    rulerVUP.rulerDirection = RulerDirectionVertical;
    //设置刻度位置，下方
    rulerVUP.rulerFace = RulerFace_up_left;
    [rulerVUP classicRuler];
    
    
    
    /**
     *  纵向滚动，刻度位于右边
     **/
    TTScrollRulerView *rulerVDOWN = [[TTScrollRulerView alloc] initWithFrame:CGRectMake(50+100, 50+100*4, 100, 250)];
    [self.view addSubview:rulerVDOWN];
    rulerVDOWN.rulerDelegate = self;
    //设置滚动方向，默认横向滚动
    rulerVDOWN.rulerDirection = RulerDirectionVertical;
    //设置刻度位置，下方
    rulerVDOWN.rulerFace = RulerFace_down_right;
    [rulerVDOWN classicRuler];
    
    
    
    /**
     *  参数改变后，重新绘制标尺
     **/
    rulerVDOWN.lockMin = 50;
    [rulerVDOWN reDrawerRuler];
    
    
    /**
     *  让标尺滚动到某一个数值
     **/
    [rulerVDOWN scrollToValue:50 animation:NO];
    
    
    /**
     *  自定义标尺
     *  注意事项：
     *  1、标尺视图的frame需要足够标尺显示出来，自己摸索
     *  2、最小值、最大值、单位刻度值，最好一起设定，只设定部分会和默认值产生冲突
     *  3、默认值的意思是标尺创建之后，刻度所在的位置，若不设定，会默认在最小值的位置
     *  4、自定义指针的frame是相对于标尺视图的
     
     *  如果遇到其它问题，无法解决，请联系QQ：943051580
     **/
    TTScrollRulerView *rulerView = [[TTScrollRulerView alloc] initWithFrame:CGRectMake(50+100*2+50, 50+100*4, 150, 250)];
    [self.view addSubview:rulerView];
    rulerView.rulerDelegate = self;
    //纵向滚动
    rulerView.rulerDirection = RulerDirectionVertical;
    //最小值
    rulerView.lockMin = 1000;
    //最大值
    rulerView.lockMax = 50000;
    //一个刻度代表的数值
    rulerView.unitValue = 100;
    //默认值
    rulerView.lockDefault = 2000;
    //不显示刻度数值
    rulerView.isShowRulerValue = YES;
    //背景颜色
    rulerView.rulerBackgroundColor = [UIColor whiteColor];
    //自定义指针位置
    rulerView.pointerFrame = CGRectMake(rulerView.bounds.size.width/2.0-cy_fit(80), cy_fit(65), cy_fit(80), cy_fit(1));
    //自定义指针图片
    rulerView.pointerImage = nil; //可自定义
    rulerView.pointerBackgroundColor = [UIColor blueColor];
    
    [rulerView classicRuler];

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