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;
}