LewBarChart - iOS 柱状图，支持多个 Y 轴
jopen
9年前
LewBarChart
iOS 柱状图，支持多个 Y 轴坐标
效果图
使用方法
_barChart = [[LewBarChart alloc]initWithFrame:CGRectMake(0, 145, SCREEN_WIDTH, 200)]; // 生成数据 NSMutableArray *yVals1 = [[NSMutableArray alloc] init]; NSMutableArray *yVals2 = [[NSMutableArray alloc] init]; double mult = 5 * 1000.f; for (int i = 0; i < 5; i++){ double val = (double) (arc4random_uniform(mult) + 3.0); [yVals1 addObject:@(val)]; val = (double) (arc4random_uniform(mult) + 3.0); [yVals2 addObject:@(val)]; } LewBarChartDataSet *set1 = [[LewBarChartDataSet alloc] initWithYValues:yVals1 label:@"报名人数"]; [set1 setBarColor:[UIColor colorWithRed:77.0 / 255.0 green:186.0 / 255.0 blue:122.0 / 255.0 alpha:1.0f]]; LewBarChartDataSet *set2 = [[LewBarChartDataSet alloc] initWithYValues:yVals2 label:@"实到人数"]; [set2 setBarColor:[UIColor colorWithRed:245.0 / 255.0 green:94.0 / 255.0 blue:78.0 / 255.0 alpha:1.0f]]; NSMutableArray *dataSets = [[NSMutableArray alloc] init]; [dataSets addObject:set1]; [dataSets addObject:set2]; LewBarChartData *data = [[LewBarChartData alloc] initWithDataSets:dataSets]; data.xLabels = @[@"项目名称1",@"项目名称2",@"项目名称3",@"项目名称4",@"项目名称5"]; data.itemSpace = 6; // 设置柱状图 _barChart.data = data; _barChart.displayAnimated = YES; _barChart.chartMargin = UIEdgeInsetsMake(20, 15, 45, 15); _barChart.showYAxis = NO; _barChart.showNumber = YES; _barChart.legendView.alignment = LegendAlignmentHorizontal; [self.view addSubview:_barChart]; [_barChart show]; // 设置图例位置 CGPoint legendCenter = CGPointMake(SCREEN_WIDTH-_barChart.legendView.bounds.size.width/2, -18); _barChart.legendView.center = legendCenter; License | 许可
This code is distributed under the terms of the MIT license.
代码使用 MIT license 许可发布.