iboss-ios/IBOSS/Report/SalesAnalysis/Controller/SalesAnalysisListNewChartViewController.m

//
//  SalesAnalysisListNewChartViewController.m
//  IBOSS
//
//  Created by Simon on 2019/6/10.
//  Copyright © 2019 elongtian. All rights reserved.
//

#import "SalesAnalysisListNewChartViewController.h"

@interface SalesAnalysisListNewChartViewController (){
    
    UIScrollView * _scroll;
    NSMutableArray *chartArray;
}

@end

@implementation SalesAnalysisListNewChartViewController

#pragma mark - 公共函数

/**
 视图加载完成函数
 */
- (void)viewDidLoad {
    [super viewDidLoad];
    [self initUI];
}

#pragma mark - 私有函数

/**
 初始化UI
 */
-(void)initUI{
    UIView *separatorView = [UIView new];
    separatorView.tag = 11;
    separatorView.frame = CGRectMake(0, 0, Screen_Width, 10);
    separatorView.backgroundColor = LineBackgroundColor;
    [self.view addSubview:separatorView];
    //柱状图左间距
    _scroll = [UIScrollView new];
    _scroll.frame = CGRectMake(0, CGRectGetMaxY(separatorView.frame), SCREENWIDTH, self.view.frame.size.height-CGRectGetMaxY(separatorView.frame));
    [self.view addSubview:_scroll];
    self.view.backgroundColor = [UIColor whiteColor];
    UILabel *lblTitle = [[UILabel alloc]init];
    lblTitle.tag = 10;
    lblTitle.frame = CGRectMake((Screen_Width-160)/2, CGRectGetMaxY(separatorView.frame)+5, 160, 25);
    lblTitle.text = @"畅滞销排行";
    lblTitle.textAlignment = 1;
    lblTitle.textColor = LabelGrayTextColor;
    lblTitle.font = [UIFont systemFontOfSize:14];
    [_scroll addSubview:lblTitle];
    _bottomSeparatorView = [UIView new];
    _bottomSeparatorView.tag = 10;
    _bottomSeparatorView.hidden = YES;
    _bottomSeparatorView.frame = CGRectMake(0,CGRectGetMaxY(lblTitle.frame)+5, Screen_Width,2);
    _bottomSeparatorView.backgroundColor = LineBackgroundColor;
    [_scroll addSubview:_bottomSeparatorView];
    chartArray = [[NSMutableArray alloc] init];
}


/**
 刷新数据
 */
-(void)refreshData{
    if(_rankList.count > 10){
        NSRange range = NSMakeRange(0, 10);
        chartArray = [NSMutableArray arrayWithArray:[_rankList subarrayWithRange:range]];
    }
    
//    Boolean flag = [self isHaveNegativeValue];
//    if(flag){
//
//        [self loadNegativeHistogram];
//    }
//
//    else{

        [self loadPositiveHistogram];
//    }
}

/**
 刷新正数柱状图
 */
- (void) loadPositiveHistogram{
    for (UIView *subview in _scroll.subviews) {
        if(subview.tag != 10) {
            [subview removeFromSuperview];
        }
    }
    if (chartArray.count<=0) {
        return;
    }
    self.view.backgroundColor = [UIColor whiteColor];
    CGFloat xSpacing = 30;
    //柱状图高度
    CGFloat height = 40;
    //第一个柱状图上间距
    CGFloat fySpacing = 15;
    //柱状图间距
    CGFloat ySpacing = 10;
    //柱状图内文字左间距
    CGFloat xTextSpacing = 5;
    //柱状图最大长度
    CGFloat maxWidth = SCREENWIDTH - xSpacing - 10;
    _histogramView = [[UIView alloc]initWithFrame:CGRectMake(0,CGRectGetMaxY(_bottomSeparatorView.frame),Screen_Width,[self getHistogramHeight:chartArray])];

    [_scroll addSubview:_histogramView];
    _histogramView.backgroundColor = [UIColor whiteColor];
//  判断是按照销售数量、销售金额、销售次数中的哪种方式排序
    int sumNumber = 0;
    double sumAmount = 0.0;
    int sumTimes = 0;
    SalesAnalysisModel *model = [chartArray objectAtIndex:0];
//    for (SalesAnalysisModel *model in _rankList) {
        sumNumber+=[model.number intValue];
        sumAmount+=[model.salesAmount doubleValue];
        sumTimes+=[model.salesTimes intValue];
//    }
    double maxUnit = 0.0;
    if ([_sortType isEqualToString:@"1"]) {
        maxUnit = sumNumber;
    }else if ([_sortType isEqualToString:@"2"]){
        maxUnit = sumAmount;
    }else if ([_sortType isEqualToString:@"3"]){
        maxUnit = sumTimes;
    }

    //>=3不画轴线
    if(chartArray.count>=3){
        [self createAxis:maxWidth maxAmount:maxUnit];
    }
    
    //画水平柱状图
    for(int i = 0;i < chartArray.count;i++){
        SalesAnalysisModel *analysisModel =  [chartArray objectAtIndex:i];
        //销售数量
        int number = [analysisModel.number intValue];
        //销售金额
        double salesAmount = [analysisModel.salesAmount doubleValue];
        //销售次数
        int salesTimes = [analysisModel.salesTimes intValue];
        //商品品牌
        NSString *commodityBrand = analysisModel.commodityBrand==nil?@"":analysisModel.commodityBrand;
        //商品名称
        NSString *commodityName = analysisModel.commodityName==nil?@"":analysisModel.commodityName;
        
        //排序方式单位
        NSString *goodsAmountStr = @"";
        double loopUnit = 0.0;
        if ([_sortType isEqualToString:@"1"]) {
            loopUnit = number;
            goodsAmountStr = [NSString stringWithFormat:@"%d", number];
        }else if ([_sortType isEqualToString:@"2"]){
            loopUnit = salesAmount;
            goodsAmountStr = [NSString stringWithFormat:@"¥%.2f", loopUnit];
        }else if ([_sortType isEqualToString:@"3"]){
            loopUnit = salesTimes;
            goodsAmountStr = [NSString stringWithFormat:@"%d", salesTimes];
        }
        
        NSString *objectName = [NSString stringWithFormat:@"%@%@",commodityBrand,commodityName];
        
        CGFloat width;
        //计算长度
        if(loopUnit < maxUnit){
            width = maxWidth * (fabs(loopUnit)/maxUnit);
            if(width < 1){
                width = 1;
            }
        }
        else{
            width = maxWidth;
        }

        [self layerToRight:_histogramView withFrame:CGRectMake(xSpacing, fySpacing*(i+1)+height*i,width, height)withColor:[UIColor colorWithRed:96.0/255.0 green:159.0/255.0 blue:233.0/255.0 alpha:1]];
        [self.view addSubview:_histogramView];
        UILabel *lblOrderSort = [[UILabel alloc] init];
        NSString *orderSortStr = analysisModel.ranking;
        CGRect orderSortFrame = [orderSortStr textRectWithSize:CGSizeMake(MAXFLOAT, MAXFLOAT) attributes:@{NSFontAttributeName:kTextFont}];

        orderSortFrame.origin.x = 10;
        orderSortFrame.origin.y = (height - orderSortFrame.size.height)/2 + fySpacing * (i+1) + height * i;
        lblOrderSort.frame = orderSortFrame;
        lblOrderSort.font = kTextFont;;
        lblOrderSort.text = orderSortStr;
        [_histogramView addSubview:lblOrderSort];
        UILabel *lblDepartmentName = [[UILabel alloc] init];
        NSString *departmentNameStr = objectName;
        CGRect departmentNameFrame = [departmentNameStr textRectWithSize:CGSizeMake(MAXFLOAT, MAXFLOAT) attributes:@{NSFontAttributeName:kTextFont}];
        departmentNameFrame.origin.x = xTextSpacing + xSpacing;
        departmentNameFrame.origin.y = 5 +  fySpacing*(i+1)+height*i;
        lblDepartmentName.textAlignment = NSTextAlignmentRight;
        lblDepartmentName.frame = departmentNameFrame;
        lblDepartmentName.font = kTextFont;
        lblDepartmentName.text = departmentNameStr;
        [_histogramView addSubview:lblDepartmentName];
        UILabel *lblGoodsAmount = [[UILabel alloc] init];
        CGRect goodsAmountFrame = [goodsAmountStr textRectWithSize:CGSizeMake(MAXFLOAT, MAXFLOAT) attributes:@{NSFontAttributeName:kTextFont}];

        goodsAmountFrame.origin.x= xTextSpacing + xSpacing;
        goodsAmountFrame.origin.y=CGRectGetMaxY( lblDepartmentName.frame);
        lblGoodsAmount.textAlignment = NSTextAlignmentRight;
        lblGoodsAmount.frame = goodsAmountFrame;
        lblGoodsAmount.font = kTextFont;
        lblGoodsAmount.text = goodsAmountStr;
        [_histogramView addSubview:lblGoodsAmount];
    }
    _scroll.contentSize = CGSizeMake(self.view.frame.size.width, CGRectGetMaxY(_histogramView.frame)+10 + rectStatusHeight +rectNavHeight + 150);
    [_scroll addSubview:_histogramView];
}
/**
 创建负数的轴线

 @param width 最大长度
 @param maxAmount 最大金额
 */
- (void) createNegativeAxis:(CGFloat) width maxAmount:(CGFloat)maxAmount{
    // 线的路径
    UIBezierPath *leveLinePath = [UIBezierPath bezierPath];
    // 起点
    [leveLinePath moveToPoint:CGPointMake((_histogramView.frame.size.width - (2 * width))/2, 0)];
    // 其他点
    [leveLinePath addLineToPoint:CGPointMake(2 * width + 10, 0)];
    CAShapeLayer *leveLineLayer = [CAShapeLayer layer];
    leveLineLayer.lineWidth = 1;
    leveLineLayer.strokeColor = LineBackgroundColor.CGColor;
    leveLineLayer.path = leveLinePath.CGPath;
    leveLineLayer.fillColor = nil; // 默认为blackColor
    [_histogramView.layer addSublayer:leveLineLayer];

    NSString *str =  [NSString stringWithFormat:@"%d",(int)maxAmount];
    int m = ceil([str integerValue]/pow(10, str.length-1));
    m = m * pow(10, str.length-1);
    //右侧垂直轴线
    for (int i = 0; i <= 3; i++) {
        if(i != 0){
            CGFloat c = (width/3)*i+width+10;
            //        if(i != 0){
            //            UILabel *lb = [[UILabel alloc] initWithFrame:CGRectMake(c-20, _histogramView.frame.origin.y-17, 200, 17)];
            //            lb.textAlignment = NSTextAlignmentCenter;
            //            lb.center = CGPointMake(c-10, _histogramView.frame.origin.y-10);
            //            lb.text = [NSString stringWithFormat:@"%d",(m/5)*i];
            //            lb.textColor = [UIColor colorWithRed:153/255.0 green:153/255.0  blue:153/255.0  alpha:1];
            //            lb.font = [UIFont systemFontOfSize:9];
            //            [_scroll addSubview:lb];
            //        }
            UIBezierPath *linePath = [UIBezierPath bezierPath];
            [linePath moveToPoint:CGPointMake(c, 0)];
            [linePath addLineToPoint:CGPointMake(c, _histogramView.frame.size.height)];
            CAShapeLayer *lineLayer = [CAShapeLayer layer];

            lineLayer.lineWidth = 1;
            lineLayer.strokeColor = LineBackgroundColor.CGColor;
            lineLayer.path = linePath.CGPath;
            lineLayer.fillColor = nil; // 默认为blackColor
            [_histogramView.layer addSublayer:lineLayer];
        }
    }
    //左侧垂直轴线
    for (int i = 0; i <= 3; i++) {
        //计算等分间距
        CGFloat c = width + 10 -(width/3)*i;
        if(i != 0){
            UIBezierPath *linePath = [UIBezierPath bezierPath];
            [linePath moveToPoint:CGPointMake(c, 0)];
            [linePath addLineToPoint:CGPointMake(c, _histogramView.frame.size.height)];
            CAShapeLayer *lineLayer = [CAShapeLayer layer];

            lineLayer.lineWidth = 1;
            lineLayer.strokeColor = LineBackgroundColor.CGColor;
            lineLayer.path = linePath.CGPath;
            lineLayer.fillColor = nil; // 默认为blackColor
            [_histogramView.layer addSublayer:lineLayer];
        }
    }
}
/**
 创建正数的轴线

 @param width <#width description#>
 @param maxAmount <#maxAmount description#>
 */
- (void) createAxis:(CGFloat) width maxAmount:(CGFloat)maxAmount{
    // 线的路径
    UIBezierPath *linePath = [UIBezierPath bezierPath];
    // 起点
    [linePath moveToPoint:CGPointMake(width+30, 0)];
    // 其他点
    [linePath addLineToPoint:CGPointMake(30, 0)];
    [linePath addLineToPoint:CGPointMake(30,_histogramView.frame.size.height)];

    CAShapeLayer *lineLayer = [CAShapeLayer layer];

    lineLayer.lineWidth = 1;
    lineLayer.strokeColor = LineBackgroundColor.CGColor;
    lineLayer.path = linePath.CGPath;
    lineLayer.fillColor = nil; // 默认为blackColor
    [_histogramView.layer addSublayer:lineLayer];
    NSString *str =  [NSString stringWithFormat:@"%d",(int)maxAmount];
    int m = ceil([str integerValue]/pow(10, str.length-1));
    m = m * pow(10, str.length-1);
    //垂直五条轴线
    for (int i = 0; i <= 5; i++) {
        CGFloat c = (width/5)*i+30;
        //        if(i != 0){
        //            UILabel *lb = [[UILabel alloc] initWithFrame:CGRectMake(c-20, _histogramView.frame.origin.y-17, 200, 17)];
        //            lb.textAlignment = NSTextAlignmentCenter;
        //            lb.center = CGPointMake(c-10, _histogramView.frame.origin.y-10);
        //            lb.text = [NSString stringWithFormat:@"%d",(m/5)*i];
        //            lb.textColor = [UIColor colorWithRed:153/255.0 green:153/255.0  blue:153/255.0  alpha:1];
        //            lb.font = [UIFont systemFontOfSize:9];
        //            [_scroll addSubview:lb];
        //        }
        UIBezierPath *linePath = [UIBezierPath bezierPath];
        [linePath moveToPoint:CGPointMake(c, 0)];
        [linePath addLineToPoint:CGPointMake(c, _histogramView.frame.size.height)];
        CAShapeLayer *lineLayer = [CAShapeLayer layer];

        lineLayer.lineWidth = 1;
        lineLayer.strokeColor = LineBackgroundColor.CGColor;
        lineLayer.path = linePath.CGPath;
        lineLayer.fillColor = nil; // 默认为blackColor
        [_histogramView.layer addSublayer:lineLayer];
    }
}
/**
 刷新负数柱状图
 */
- (void) loadNegativeHistogram{
    for (UIView *subview in _scroll.subviews) {
        if(subview.tag != 10) {
            [subview removeFromSuperview];
        }
    }
    //柱状图左间距
    CGFloat xSpacing = 15;
    //柱状图高度
    CGFloat height = 40;
    //第一个柱状图上间距
    CGFloat fySpacing = 15;
    //柱状图间距
    CGFloat ySpacing = 10;
    //柱状图内文字左间距
    CGFloat xTextSpacing = 5;
    //柱状图最大长度
    CGFloat maxWidth = SCREENWIDTH/2 - 10;
    _histogramView = [[UIView alloc]initWithFrame:CGRectMake(0,CGRectGetMaxY(_bottomSeparatorView.frame),Screen_Width,[self getHistogramHeight:_rankList])];
    [_scroll addSubview:_histogramView];
    _histogramView.backgroundColor = [UIColor whiteColor];
    SalesAnalysisModel *maxBackModel = [chartArray objectAtIndex:0];
    SalesAnalysisModel *minBackModel = [chartArray objectAtIndex:chartArray.count - 1];
    //获得最大值绝对值
    double maxUnit = 0.0;
    double firstAmount = 0.0;
//    maxBackFrame.achievementRankModel.goodsAmount;
    double lastAmount = 0.0;
//    minBackFrame.achievementRankModel.goodsAmount;
    //  判断是按照销售数量、销售金额、销售次数中的哪种方式排序
//    int sumNumber = 0;
//    double sumAmount = 0.0;
//    int sumTimes = 0;
//    for (SalesAnalysisModel *model in _rankList) {
//        sumNumber+=[model.number intValue];
//        sumAmount+=[model.salesAmount doubleValue];
//        sumTimes+=[model.salesTimes intValue];
//    }
    if ([_sortType isEqualToString:@"1"]) {
        maxUnit = [maxBackModel.number floatValue];
        firstAmount = [maxBackModel.number floatValue];
        lastAmount = [minBackModel.number floatValue];
    }else if ([_sortType isEqualToString:@"2"]){
        maxUnit = [maxBackModel.salesAmount floatValue];
        firstAmount = [maxBackModel.salesAmount floatValue];
        lastAmount = [minBackModel.salesAmount floatValue];
    }else if ([_sortType isEqualToString:@"3"]){
        maxUnit = [maxBackModel.salesTimes floatValue];
        firstAmount = [maxBackModel.salesTimes floatValue];
        lastAmount = [minBackModel.salesTimes floatValue];
    }
    if(fabs(firstAmount)>fabs(lastAmount)){
        maxUnit = firstAmount;
    }else{
        maxUnit = fabs(lastAmount);
    }
    if(_rankList.count>=3){
        [self createNegativeAxis:maxWidth maxAmount:maxUnit];
    }
    for(int i = 0;i < chartArray.count;i++){
        SalesAnalysisModel *maxAnalysisModel =  [chartArray objectAtIndex:i];
        //销售数量
        int number = [maxAnalysisModel.number intValue];
        //销售金额
        double salesAmount = [maxAnalysisModel.salesAmount doubleValue];
        //销售次数
        int salesTimes = [maxAnalysisModel.salesTimes intValue];
        //商品品牌
        NSString *commodityBrand = maxAnalysisModel.commodityBrand==nil?@"":maxAnalysisModel.commodityBrand;
        //商品名称
        NSString *commodityName = maxAnalysisModel.commodityName==nil?@"":maxAnalysisModel.commodityName;
        
        //排序方式单位
        NSString *goodsAmountStr = @"";
        double goodsAmount = 0.0;
        
        if ([_sortType isEqualToString:@"1"]) {
            goodsAmount = number;
            goodsAmountStr = [NSString stringWithFormat:@"%d", number];
        }else if ([_sortType isEqualToString:@"2"]){
            goodsAmount = salesAmount;
            goodsAmountStr = [NSString stringWithFormat:@"%.2f", salesAmount];
        }else if ([_sortType isEqualToString:@"3"]){
            goodsAmount = salesTimes;
            goodsAmountStr = [NSString stringWithFormat:@"%d", salesTimes];
        }
        NSString *objectName = [NSString stringWithFormat:@"%@%@",commodityBrand,commodityName];
        CGFloat width;
        if(goodsAmount < maxUnit){
            width = maxWidth * (fabs(goodsAmount)/maxUnit);
            if(width < 1){
                width = 1;
            }
        }
        else{
            width = maxWidth;
        }

        UILabel *lblGoodsAmount = [[UILabel alloc] init];
        CGRect goodsAmountFrame = [goodsAmountStr textRectWithSize:CGSizeMake(MAXFLOAT, MAXFLOAT) attributes:@{NSFontAttributeName:kTextFont}];

        UILabel *lblOrderSort = [[UILabel alloc] init];
        NSString *orderSortStr = maxAnalysisModel.ranking;
        CGRect orderSortFrame = [orderSortStr textRectWithSize:CGSizeMake(MAXFLOAT, MAXFLOAT) attributes:@{NSFontAttributeName:kTextFont}];

        UILabel *lblDepartmentName = [[UILabel alloc] init];
        NSString *objectNameStr = objectName;
        CGRect objectNameFrame = [objectNameStr textRectWithSize:CGSizeMake(MAXFLOAT, MAXFLOAT) attributes:@{NSFontAttributeName:kTextFont}];

        //画右侧柱状图
        if(goodsAmount >=0){
            [self layerToRight:_histogramView withFrame:CGRectMake(Screen_Width/2, fySpacing*(i+1)+height*i,width, height)withColor:[UIColor colorWithRed:96.0/255.0 green:159.0/255.0 blue:233.0/255.0 alpha:1]];
            objectNameFrame.origin.x = xTextSpacing+Screen_Width/2;
            objectNameFrame.origin.y = 5 + fySpacing*(i+1)+height*i;
            goodsAmountFrame.origin.x=xTextSpacing+Screen_Width/2;
            goodsAmountFrame.origin.y=CGRectGetMaxY(objectNameFrame);
            orderSortFrame.origin.x = Screen_Width/2-xSpacing;
            orderSortFrame.origin.y = (height - orderSortFrame.size.height)/2 + fySpacing*(i+1)+height*i;
            //跳转按钮frame
            //            detailBtnFrame = CGRectMake(SCREENWIDTH/2, fySpacing*(i+1)+height*i, SCREENWIDTH/2, height);
        }
        //画左侧柱状图
        else if(goodsAmount < 0){

            [self layerToLeft:_histogramView withFrame:CGRectMake(Screen_Width/2-width, fySpacing*(i+1)+height*i,width, height)withColor:[UIColor colorWithRed:96.0/255.0 green:159.0/255.0 blue:233.0/255.0 alpha:1]];
            objectNameFrame.origin.x=Screen_Width/2- xTextSpacing-CGRectGetWidth(objectNameFrame);
            objectNameFrame.origin.y = 5 +  fySpacing*(i+1)+height*i;
            goodsAmountFrame.origin.x=Screen_Width/2-xTextSpacing-CGRectGetWidth(goodsAmountFrame);
            goodsAmountFrame.origin.y=CGRectGetMaxY(objectNameFrame);
            orderSortFrame.origin.x =Screen_Width/2+xTextSpacing;
            orderSortFrame.origin.y = (height - orderSortFrame.size.height)/2 +  fySpacing*(i+1)+height*i;
            //跳转按钮frame
            //            detailBtnFrame = CGRectMake(0, fySpacing*(i+1)+height*i, SCREENWIDTH/2, height);
        }
        [self.view addSubview:_histogramView];
        UIView *yAxis=[[UIView alloc]init];
        yAxis.frame=CGRectMake(Screen_Width/2, 0, 2.5, [self getHistogramHeight:_rankList]);
        yAxis.backgroundColor=LineBackgroundColor;
        [_histogramView addSubview:yAxis];
        lblDepartmentName.frame = objectNameFrame;
        lblDepartmentName.font = kTextFont;
        lblDepartmentName.text = objectNameStr;
        [_histogramView addSubview:lblDepartmentName];
        lblOrderSort.frame = orderSortFrame;
        lblOrderSort.font = kTextFont;
        lblOrderSort.text = orderSortStr;
        [_histogramView addSubview:lblOrderSort];
        lblGoodsAmount.textAlignment = NSTextAlignmentRight;
        lblGoodsAmount.frame = goodsAmountFrame;
        lblGoodsAmount.font = kTextFont;
        lblGoodsAmount.text = goodsAmountStr;
        [_histogramView addSubview:lblGoodsAmount];

    }

    _scroll.contentSize = CGSizeMake(self.view.frame.size.width, CGRectGetMaxY(_histogramView.frame)+10+rectStatusHeight+rectNavHeight + 150);
    [_scroll addSubview:_histogramView];

}

/**
 判断是否有负数
 @return <#return value description#>
 */
-(Boolean)  isHaveNegativeValue{
    Boolean flag=NO;
    for(int i = 0;i < _rankList.count;i++){
        SalesAnalysisModel *model = [chartArray objectAtIndex:i];
        double loopUnit = 0.0;
        if ([_sortType isEqualToString:@"1"]) {
            loopUnit = [model.number doubleValue];
        }else if ([_sortType isEqualToString:@"2"]){
            loopUnit = [model.salesAmount doubleValue];
        }else if ([_sortType isEqualToString:@"3"]){
            loopUnit = [model.salesTimes doubleValue];
        }
        if(loopUnit < 0){
            flag = true;
            break;
        }
    }
    return flag;
}

/**
 计算柱状图高度
 @param dataList <#dataList description#>
 @return <#return value description#>
 */
-(CGFloat)getHistogramHeight:(NSArray*)dataList{

    NSInteger row = dataList.count;
    return (row * 40 + (row * 15));
}

/**
 绘制向右的柱状图
 @param subview
 @param frame
 */
- (void)layerToRight:(UIView *) subview withFrame:(CGRect) frame withColor:(UIColor *) color
{
    CGFloat x = frame.origin.x;
    CGFloat y = frame.origin.y;
    CGFloat height = frame.size.height;
    CGFloat width = frame.size.width;
    CAGradientLayer *itemLayer = [CAGradientLayer layer];
    itemLayer.frame = frame;
    itemLayer.colors = [self getColorArr];;
    itemLayer.locations = @[@0,@0.5];
    itemLayer.startPoint = CGPointMake(0, 0);
    itemLayer.endPoint = CGPointMake(0, 1.0);
    [subview.layer addSublayer:itemLayer];
    CABasicAnimation *aniBounds = [CABasicAnimation animationWithKeyPath:@"bounds"];
    aniBounds.fromValue = [NSValue valueWithCGRect:CGRectMake(x, y, 0, height)];
    aniBounds.toValue = [NSValue valueWithCGRect:CGRectMake(x, y, CGRectGetWidth(frame), CGRectGetHeight(frame))];
    CABasicAnimation *aniPosition = [CABasicAnimation animationWithKeyPath:@"position"];
    aniPosition.fromValue = [NSValue valueWithCGPoint:CGPointMake(x, frame.size.height/2 + y)];
    aniPosition.toValue = [NSValue valueWithCGPoint:CGPointMake(x + (CGRectGetMaxX(frame)-x)/2,y + (CGRectGetMaxY(frame)-y)/2)];
    CAAnimationGroup *anis = [CAAnimationGroup animation];
    anis.animations = @[aniBounds,aniPosition];
    anis.duration = 1;
    anis.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
    anis.removedOnCompletion = NO;
    anis.fillMode=kCAFillModeForwards;
    [itemLayer addAnimation:anis forKey:nil];
}

/**
 绘制向左的柱状图
 @param subview
 @param frame
 */
- (void)layerToLeft:(UIView *) subview withFrame:(CGRect) frame withColor:(UIColor *) color
{
    CGFloat x = frame.origin.x;
    CGFloat y = frame.origin.y;
    CGFloat height = frame.size.height;
    CGFloat width = frame.size.width;
    CAGradientLayer *itemLayer = [CAGradientLayer layer];
    itemLayer.frame = frame;
    itemLayer.colors = [self getColorArr];
    itemLayer.locations = @[@0,@0.5];
    itemLayer.startPoint = CGPointMake(0, 0);
    itemLayer.endPoint = CGPointMake(0, 1.0);
    [subview.layer addSublayer:itemLayer];
    CABasicAnimation *aniBounds = [CABasicAnimation animationWithKeyPath:@"bounds"];
    aniBounds.fromValue = [NSValue valueWithCGRect:CGRectMake(x, y, 0, height)];
    aniBounds.toValue = [NSValue valueWithCGRect:CGRectMake(x, y, CGRectGetWidth(frame), CGRectGetHeight(frame))];
    CABasicAnimation *aniPosition = [CABasicAnimation animationWithKeyPath:@"position"];
    aniPosition.toValue = [NSValue valueWithCGPoint:CGPointMake(x+ (CGRectGetMaxX(frame)-x)/2, frame.size.height/2 + y)];
    aniPosition.fromValue = [NSValue valueWithCGPoint:CGPointMake(x+width,y + (CGRectGetMaxY(frame)-y)/2)];
    CAAnimationGroup *anis = [CAAnimationGroup animation];
    anis.animations = @[aniBounds,aniPosition];
    anis.duration = 1;
    anis.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
    anis.removedOnCompletion = NO;
    anis.fillMode=kCAFillModeForwards;
    [itemLayer addAnimation:anis forKey:nil];
}

/**
 渐变色

 @return <#return value description#>
 */
-(NSMutableArray *) getColorArr{
    NSMutableArray *arr = [NSMutableArray array];
    [arr addObject:(__bridge id)[UIColor colorWithRed:236/255.0 green:134/255.0 blue:40/255.0 alpha:1].CGColor];
    [arr addObject:(__bridge id)[UIColor colorWithRed:236/255.0 green:134/255.0 blue:40/255.0 alpha:0.4].CGColor];
    [arr addObject:(__bridge id)[UIColor colorWithRed:236/255.0 green:134/255.0 blue:40/255.0 alpha:1].CGColor];
    return arr;
}

@end