一个基于PNChart的Apple Watch图表库。支持line, bar, pie, circle 和 radar 图表，以后将集成来自ios-charts的更多图表类型。

Usage

Cocoapods

In your watchOS target

pod 'NKWatchChart'

Then

pod install

And

#import "NKWatchChart.h"

Using Cocoapods with watchOS 2 by Justin Ehlert

Copy NKWatchChart folder to watch app extension

Requirements

• watchOS ~> 2.0
• Xcode >= 7.0

Examples

Line Chart

    NKLineChart *chart = [[NKLineChart alloc] initWithFrame:frame];          chart.yLabelFormat = @"%1.1f";          [chart setXLabels:@[@"SEP 1",@"SEP 2",@"SEP 3",@"SEP 4",@"SEP 5",@"SEP 6",@"SEP 7"]];          chart.showCoordinateAxis = YES;            //Use yFixedValueMax and yFixedValueMin to Fix the Max and Min Y Value          //Only if you needed          chart.yFixedValueMax = 300.0;          chart.yFixedValueMin = 0.0;            [chart setYLabels:@[                              @"0",                              @"50",                              @"100",                              @"150",                              @"200",                              @"250",                              @"300",                              ]           ];            chart.yLabelFont = [UIFont systemFontOfSize:6.f];          chart.xLabelFont = [UIFont systemFontOfSize:6.f];          chart.xLabelWidth = 10.f;          chart.yLabelColor = NKGreen;          chart.xLabelColor = NKGreen;            chart.axisColor = NKLightGrey;          chart.axisWidth = 1.f;            chart.xUnit = @"Day";          chart.yUnit = @"Min";            // Line Chart #1          NSArray * data01Array = @[@60.1, @160.1, @126.4, @0.0, @186.2, @127.2, @176.2];          NKLineChartData *data01 = [NKLineChartData new];          data01.color = NKGreen;          data01.alpha = 0.9f;          data01.itemCount = data01Array.count;          data01.inflexionPointStyle = NKLineChartPointStyleTriangle;          data01.getData = ^(NSUInteger index) {              CGFloat yValue = [data01Array[index] floatValue];              return [NKLineChartDataItem dataItemWithY:yValue];          };            // Line Chart #2          NSArray * data02Array = @[@0.0, @180.1, @26.4, @202.2, @126.2, @167.2, @276.2];          NKLineChartData *data02 = [NKLineChartData new];          data02.color = NK推terColor;          data02.alpha = 0.5f;          data02.itemCount = data02Array.count;          data02.inflexionPointStyle = NKLineChartPointStyleCircle;          data02.getData = ^(NSUInteger index) {              CGFloat yValue = [data02Array[index] floatValue];              return [NKLineChartDataItem dataItemWithY:yValue];          };          chart.chartData = @[data01,data02];        image = [chart drawImage];      [self.chartImage setImage:image];

Bar Chart

    NKBarChart *chart = [[NKBarChart alloc] initWithFrame:frame];          chart.yLabelFormatter = ^(CGFloat yValue){              CGFloat yValueParsed = yValue;              NSString * labelText = [NSString stringWithFormat:@"%0.f",yValueParsed];              return labelText;          };          chart.labelMarginTop = 5.0;          chart.showChartBorder = YES;          [chart setXLabels:@[@"2",@"3",@"4",@"5",@"2",@"3",@"4",@"5"]];          //       self.barChart.yLabels = @[@-10,@0,@10];          [chart setYValues:@[@10.82,@1.88,@6.96,@33.93,@10.82,@1.88,@6.96,@33.93]];          [chart setStrokeColors:@[NKGreen,NKGreen,NKRed,NKGreen,NKGreen,NKGreen,NKRed,NKGreen]];            image = [chart drawImage];          [self.chartImage setImage:image];

Pie Chart

     NSArray *items = @[[NKPieChartDataItem dataItemWithValue:10 color:NKLightGreen],                             [NKPieChartDataItem dataItemWithValue:20 color:NKFreshGreen description:@"WWDC"],                             [NKPieChartDataItem dataItemWithValue:40 color:NKDeepGreen description:@"GOOG I/O"],                             ];            NKPieChart *chart = [[NKPieChart alloc] initWithFrame:frame items:items];          chart.descriptionTextColor = [UIColor whiteColor];          chart.descriptionTextFont  = [UIFont systemFontOfSize:12.0];          chart.showAbsoluteValues = NO;          chart.showOnlyValues = NO;            image = [chart drawImage];          [self.chartImage setImage:image];

Circle Chart

    UIColor *shadowColor = [UIColor colorWithRed:225.0 / 255.0 green:225.0 / 255.0 blue:225.0 / 255.0 alpha:0.5f];          NKCircleChart *chart = [[NKCircleChart alloc] initWithFrame:frame total:@100 current:@60 clockwise:YES shadow:YES shadowColor:shadowColor displayCountingLabel:YES overrideLineWidth:@5];          chart.strokeColor = NKGreen;          chart.strokeColorGradientStart = NKLightGreen;          image = [chart drawImage];          [self.chartImage setImage:image];

Radar Chart

 NSArray *items = @[[NKRadarChartDataItem dataItemWithValue:3 description:@"Art"],                             [NKRadarChartDataItem dataItemWithValue:2 description:@"Math"],                             [NKRadarChartDataItem dataItemWithValue:8 description:@"Sports"],                             [NKRadarChartDataItem dataItemWithValue:5 description:@"Liter"],                             [NKRadarChartDataItem dataItemWithValue:4 description:@"Other"],                             ];          NKRadarChart *chart = [[NKRadarChart alloc] initWithFrame:frame items:items valueDivider:1];            image = [chart drawImage];          [self.chartImage setImage:image];

项目主页：http://www.open-open.com/lib/view/home/1442052987117