LewBarChart

iOS 柱狀圖，支持多個 Y 軸坐標

效果圖

使用方法

_barChart = [[LewBarChart alloc]initWithFrame:CGRectMake(0, 145, SCREEN_WIDTH, 200)];

// 生成數據
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:@"報名人數"];
[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:@"實到人數"];
[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 = @[@"項目名稱1",@"項目名稱2",@"項目名稱3",@"項目名稱4",@"項目名稱5"];
data.itemSpace = 6;
// 設置柱狀圖
_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];
// 設置圖例位置
CGPoint legendCenter = CGPointMake(SCREEN_WIDTH-_barChart.legendView.bounds.size.width/2, -18);
_barChart.legendView.center = legendCenter;</pre> 
   License | 許可
 
This code is distributed under the terms of the MIT license.

 代碼使用 MIT license 許可發布.


項目地址： https://github.com/pljhonglu/LewBarChart