UUChartView

Line and Bar charts. You can mark the range of values you want, and show the max or min values in linechart.

Introduction

UUChart
UULineChart
UUBarChart
UUColor
UUBar

Usage

init

-(id)initwithUUChartDataFrame:(CGRect)rect 
                   withSource:(id<UUChartDataSource>)dataSource 
                    withStyle:(UUChartStyle)style;

Select from two styles for UUChartView:

UUChartLineStyle
UUChartBarStyle

UUChartDataSource

####required

- (NSArray *)UUChart_xLableArray:(UUChart *)chart;
//The target array's object's class is equal to NSArray
- (NSArray *)UUChart_yValueArray:(UUChart *)chart;

####optional

// the colors for lines and bars.
- (NSArray *)UUChart_ColorArray:(UUChart *)chart;
//CGRange CGRangeMake(CGFloat max, CGFloat min);
- (CGRange)UUChartChooseRangeInLineChart:(UUChart *)chart;

####Additional options available for UUChartLineStyle

//Mark the range of values with grayColor if you need
- (CGRange)UUChartMarkRangeInLineChart:(UUChart *)chart;

//You can choose horizonLine which you want to show
- (BOOL)UUChart:(UUChart *)chart ShowHorizonLineAtIndex:(NSInteger)index;

// Show the label on the max and min values with their colors.
- (BOOL)UUChart:(UUChart *)chart ShowMaxMinAtIndex:(NSInteger)index;

UUChart, based on kevinzhow's PNChart, was created on 2014-7-24, although UUChart is now very different from PNChart.

Demo

chartView = [[UUChart alloc]initwithUUChartDataFrame:CGRectMake(10, 10, [UIScreen mainScreen].bounds.size.width-20, 150)
                                          withSource:self
                                           withStyle:indexPath.section==1?UUChartBarStyle:UUChartLineStyle];
[chartView showInView:self.contentView];

//Horizontal Axis Label

- (NSArray *)UUChart_xLableArray:(UUChart *)chart
{
    if (path.section==0) {
        switch (path.row) {
            case 0:
                return [self getXTitles:5];
            case 1:
                return [self getXTitles:11];
            case 2:
                return [self getXTitles:7];
            case 3:
                return [self getXTitles:7];
            default:
                break;
        }
    }else{
        switch (path.row) {
            case 0:
                return [self getXTitles:11];
            case 1:
                return [self getXTitles:7];
            default:
                break;
        }
    }
    return [self getXTitles:20];
}
- (NSArray *)getXTitles:(int)num
{
    NSMutableArray *xTitles = [NSMutableArray array];
    for (int i=0; i<num; i++) {
        NSString * str = [NSString stringWithFormat:@"R-%d",i];
        [xTitles addObject:str];
    }
    return xTitles;
}

//Creating multiple array values (note the datatype)

- (NSArray *)UUChart_yValueArray:(UUChart *)chart
{
    NSArray *ary = @[@"22",@"44",@"15",@"40",@"42"];
    NSArray *ary1 = @[@"22",@"54",@"15",@"30",@"42",@"77",@"43"];
    NSArray *ary2 = @[@"76",@"34",@"54",@"23",@"16",@"32",@"17"];
    NSArray *ary3 = @[@"3",@"12",@"25",@"55",@"52"];
    NSArray *ary4 = @[@"23",@"42",@"25",@"15",@"30",@"42",@"32",@"40",@"42",@"25",@"33"];

    if (path.section==0) {
        switch (path.row) {
            case 0:
                return @[ary];
            case 1:
                return @[ary4];
            case 2:
                return @[ary1,ary2];
            default:
                return @[ary1,ary2,ary3];
        }
    }else{
        if (path.row) {
            return @[ary1,ary2];
        }else{
            return @[ary4];
        }
    }
}

//Array of colors

- (NSArray *)UUChart_ColorArray:(UUChart *)chart
{
    return @[UUGreen,UURed,UUBrown];
}

//Choose line chart range

- (CGRange)UUChartChooseRangeInLineChart:(UUChart *)chart
{
    if (path.section==0 && (path.row==0|path.row==1)) {
        return CGRangeMake(60, 10);
    }
    if (path.section==1 && path.row==0) {
        return CGRangeMake(60, 10);
    }
    if (path.row==2) {
        return CGRangeMake(100, 0);
    }
    return CGRangeZero;
}

Features only available for line charts

//Ability to declare line chart range

- (CGRange)UUChartMarkRangeInLineChart:(UUChart *)chart
{
   if (path.row==2) {
       return CGRangeMake(25, 75);
    }
  return CGRangeZero;
}

//Display horizontal line

- (BOOL)UUChart:(UUChart *)chart ShowHorizonLineAtIndex:(NSInteger)index
{
    return YES;
}

//Determine the minimum and maximum display

- (BOOL)UUChart:(UUChart *)chart ShowMaxMinAtIndex:(NSInteger)index
{
    return path.row==2;
}

yinjiuming / UUChartView