可以绘制柱状图、折线图、K线图、饼状图等Charts，且和Android一致的图表界面MPAndroidChart。
一、下载Charts框架
下载地址：https://github.com/danielgindi/Charts.
解压后的文件夹里面的内容是这个样子的，如下图：
下载版本，如下图：
二、导入Charts.xcodeproj工程
手动集成
1.拖拽 Charts.xcodeproj 文件到你的工程中，Source文件夹拖拽到同文件夹下单不引用进工程。
2.在 TARGETS —> General —> Embedded Binaries 下，点击 + 按钮，选择 Charts.framework (重要*动态库添加，不添加真机运行报错)
3.Clean一下，编译一下
4.设置编译选项，找到Build Settings -> Embedded Content Contains Swift Code 选项，设置为Yes，Build Settings -> Always Embed Swift Standard Libraries 选项，设置为Yes，如下图：
5.如果需要在 ObjC 的工程中使用 Swift 文件，你需要导入 Bridging Header 文件。通常 Bridging Header 文件被命名为 “YourProject-Swift.h”。
6.在使用图表的文件中要写上的Swift头文件，@import Charts ;
三、添加测试代码
import "MyViewController.h"
@import Charts;
@interface MyViewController
@property (strong, nonatomic)PieChartView * pieChartView;
@end
@implementation MyViewController
-(void)creasePieChartView{
self.pieChartView = [[PieChartView alloc] initWithFrame:CGRectMake(0, 50, _View.frame.size.width- 10, _View.frame.size.height - 50)];
// self.pieChartView.backgroundColor = [UIColor lightGrayColor];
[_View addSubview:self.pieChartView];
[self.pieChartView setExtraOffsetsWithLeft:5 top:10 right:70 bottom:5];//饼状图距离边缘的间隙
self.pieChartView.usePercentValuesEnabled = YES;//是否根据所提供的数据, 将显示数据转换为百分比格式
self.pieChartView.dragDecelerationEnabled = YES;//拖拽饼状图后是否有惯性效果
self.pieChartView.drawSlicesUnderHoleEnabled= NO;//
self.pieChartView.chartDescription.enabled = NO;//饼状图描述
self.pieChartView.drawHoleEnabled = YES;//饼状图是否是空心
self.pieChartView.holeRadiusPercent = 0.5;//空心半径占比
self.pieChartView.holeColor = [UIColor clearColor];//空心颜色
self.pieChartView.transparentCircleRadiusPercent = 0.55;//半透明空心半径占比
self.pieChartView.transparentCircleColor = [UIColor colorWithRed:255/255.0 green:255/255.0 blue:255/255.0 alpha:0.3];//半透明空心的颜色
if (self.pieChartView.isDrawHoleEnabled == YES) {
self.pieChartView.drawCenterTextEnabled = YES;//是否显示中间文字
//普通文本
// self.pieChartView.centerText = @"饼状图";//中间文字
//富文本
NSMutableAttributedString *centerText = [[NSMutableAttributedString alloc] initWithString:@"饼状图bbb\n饼状图aaa"];
[centerText setAttributes:@{NSFontAttributeName: [UIFont boldSystemFontOfSize:16],
NSForegroundColorAttributeName: [UIColor orangeColor]}
range:NSMakeRange(0, centerText.length)];
self.pieChartView.centerAttributedText = centerText;
}
self.pieChartView.legend.maxSizePercent = 1;//图例在饼状图中的大小占比, 这会影响图例的宽高
self.pieChartView.legend.formToTextSpace = 5;//文本间隔
self.pieChartView.legend.font = [UIFont systemFontOfSize:10];//字体大小
self.pieChartView.legend.textColor = [UIColor grayColor];//字体颜色
// self.pieChartView.legend.position = ChartLegendPositionBelowChartCenter;//图例在饼状图中的位置
self.pieChartView.legend.horizontalAlignment = ChartLegendHorizontalAlignmentRight;
self.pieChartView.legend.verticalAlignment = ChartLegendVerticalAlignmentTop;
self.pieChartView.legend.orientation = ChartLegendOrientationVertical;
self.pieChartView.legend.form = ChartLegendFormCircle;//图示样式: 方形、线条、圆形
self.pieChartView.legend.formSize = 8;//图示大小
[self.pieChartView setRotationEnabled:false];//禁止拖拽
[self setData];
}
- (PieChartData *)setData{
//每个区块的数据
//每个区块的名称或描述
NSMutableArray *arr = [[NSMutableArray alloc]init];
NSMutableArray *nameArr = [[NSMutableArray alloc]init];
for (pieChart *model in _pieCharModel.pieChart) {
[arr addObject:model.totalamt];//@[@"8.54",@"3.26",@"2"];
[nameArr addObject:model.typename];
}
NSMutableArray *values = [[NSMutableArray alloc] init];
// IMPORTANT: In a PieChart, no values (Entry) should have the same xIndex (even if from different DataSets), since no values can be drawn above each other.
for (int i = 0; i < arr.count; I++)
{
NSString * aaa = arr[i];
double bb = aaa.doubleValue;
[values addObject:[[PieChartDataEntry alloc] initWithValue: bb label: nameArr[i]]];
}
//dataSet
PieChartDataSet *dataSet = [[PieChartDataSet alloc] initWithValues:values label:@"aaaf"];
dataSet.drawValuesEnabled = YES;//是否绘制显示数据
NSMutableArray *colors = [[NSMutableArray alloc] init];
[colors addObjectsFromArray:ChartColorTemplates.vordiplom];
[colors addObjectsFromArray:ChartColorTemplates.joyful];
[colors addObjectsFromArray:ChartColorTemplates.colorful];
[colors addObjectsFromArray:ChartColorTemplates.liberty];
[colors addObjectsFromArray:ChartColorTemplates.pastel];
[colors addObject:[UIColor colorWithRed:51/255.f green:181/255.f blue:229/255.f alpha:1.f]];
dataSet.colors = colors;//区块颜色
dataSet.sliceSpace = 5;//相邻区块之间的间距
dataSet.selectionShift = 8;//选中区块时, 放大的半径
dataSet.xValuePosition = PieChartValuePositionInsideSlice;//名称位置
dataSet.yValuePosition = PieChartValuePositionOutsideSlice;//数据位置
//数据与区块之间的用于指示的折线样式
dataSet.valueLinePart1OffsetPercentage = 0.85;//折线中第一段起始位置相对于区块的偏移量, 数值越大, 折线距离区块越远
dataSet.valueLinePart1Length = 0.5;//折线中第一段长度占比
dataSet.valueLinePart2Length = 0.4;//折线中第二段长度最大占比
dataSet.valueLineWidth = 1;//折线的粗细
dataSet.valueLineColor = [UIColor brownColor];//折线颜色
//data
PieChartData *data = [[PieChartData alloc] initWithDataSet:dataSet];
NSNumberFormatter *formatter = [[NSNumberFormatter alloc] init];
formatter.numberStyle = NSNumberFormatterPercentStyle;
formatter.maximumFractionDigits = 0;//小数位数
formatter.multiplier = @1.f;
[data setValueFormatter:[[ChartDefaultValueFormatter alloc] initWithFormatter:formatter]];//设置显示数据格式
[data setValueTextColor:[UIColor brownColor]];
[data setValueFont:[UIFont systemFontOfSize:10]];
self.pieChartView.data = data;
[ self.pieChartView setNeedsDisplay];
return data;
}
@end
*问题
dyld: Library not loaded: @rpath/Charts.framework/Charts
Referenced from: /var/containers/Bundle/Application/FFFFESFEF24432FFFRRER342422HHWH/test.app/test
Reason: image not found
动态库未链接到项目内
解决办法：
在 TARGETS —> General —> Embedded Binaries 下，点击 + 按钮，选择 Charts.framework就可以解决问题
