Code Quality Rank: L4
Programming language: Objective-C
License: Apache License 2.0
Tags: Charts    
Latest version: v0.1.1

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A highly extendable, easy to use chart with event handling, animation supported.


How To Use

Download and run the EChartDemo project is the best practice to know how to use EChart.

Step 1: Add EChart to Your Project

use CocoaPods with Podfile:

platform :ios, '7.0'
pod "EChart"

or Download project here

And Drag /EChart/ folder into your project

Step 2: Include ECharts in your View Controller

EColumnChart as a example, all ECharts work in a similar way.

Import the head file:

#import "EColumnChart.h"

Make your ViewController adopts the EColumnChart's protocol:

@interface YourViewController : UIViewController <EColumnChartDelegate, EColumnChartDataSource>

Declare a EColumnChart instance:

@property (strong, nonatomic) EColumnChart *eColumnChart;

Step 3

Give your EColumnChart a nice frame:

_eColumnChart = [[EColumnChart alloc] initWithFrame:CGRectMake(40, 100, 250, 200)];

Set EColumnChart's delegate and dataSource to your ViewController:

[_eColumnChart setDelegate:self];
[_eColumnChart setDataSource:self];

Add EColumnChart to wherever you want:

[self.view addSubview:_eColumnChart];

Provide data & Get events

After setting up your EColumnChart, you may need to provide the data for the EColumnChart and you will be able to get events from EColumnChart as well.

If you were a expert with UITableView, you will be quite familiar with the way EColumnChart works. Because they work in a same way.


You need to implement every method in the EColumnChartDataSource

/** How many Columns are there in total.*/
- (NSInteger) numberOfColumnsInEColumnChart:(EColumnChart *) eColumnChart;

/** How many Columns should be presented on the screen each time*/
- (NSInteger) numberOfColumnsPresentedEveryTime:(EColumnChart *) eColumnChart;

/** The highest value among the whole chart*/
- (EColumnDataModel *)     highestValueEColumnChart:(EColumnChart *) eColumnChart;

/** Value for each column*/
- (EColumnDataModel *)     eColumnChart:(EColumnChart *) eColumnChart


The implementation of the Delegate is according to your needs

/** When finger single taped the column*/
- (void)        eColumnChart:(EColumnChart *) eColumnChart
         didSelectColumn:(EColumn *) eColumn;

/** When finger enter specific column, this is dif from tap*/
- (void)        eColumnChart:(EColumnChart *) eColumnChart
    fingerDidEnterColumn:(EColumn *) eColumn;

/** When finger leaves certain column, will tell you which column you are leaving*/
- (void)        eColumnChart:(EColumnChart *) eColumnChart
    fingerDidLeaveColumn:(EColumn *) eColumn;

/** When finger leaves wherever in the chart, will trigger both if finger is leaving from a column */
- (void) fingerDidLeaveEColumnChart:(EColumnChart *)eColumnChart;


EChart is available under the Apache License. See the LICENSE file for more info..

*Note that all licence references and agreements mentioned in the EChart README section above are relevant to that project's source code only.