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https://github.com/lecho/hellocharts-android

Charts library for Android compatible with API 8+, several chart types with scaling, scrolling and animations πŸ“Š
https://github.com/lecho/hellocharts-android

android chart

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Charts library for Android compatible with API 8+, several chart types with scaling, scrolling and animations πŸ“Š

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README 

        
# HelloCharts for Android



Charting library for Android compatible with API 8+(Android 2.2).

Works best when hardware acceleration is available, so API 14+(Android 4.0) is recommended.

Apache License 2.0.



[![Android Arsenal](https://img.shields.io/badge/Android%20Arsenal-HelloCharts%20for%20Android-brightgreen.svg?style=flat)](https://android-arsenal.com/details/1/1068)



  Coverity Scan Build Status



[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.github.lecho/hellocharts-library/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.github.lecho/hellocharts-library)

[![Release](https://img.shields.io/github/release/lecho/hellocharts-android.svg?label=JitPack.io)](https://jitpack.io/#lecho/hellocharts-android)



## Features



 - Line chart(cubic lines, filled lines, scattered points)

 - Column chart(grouped, stacked, negative values)

 - Pie chart

 - Bubble chart

 - Combo chart(columns/lines)

 - Preview charts(for column chart and line chart)

 - Zoom(pinch to zoom, double tap zoom), scroll and fling

 - Custom and auto-generated axes(top, bottom, left, right, inside)

 - Animations



## Screens and Demos



 - Code of a demo application is in `hellocharts-samples` directory, requires appcompat v21. 

 - The **demo app** is also ready for download on [**Google Play**](https://play.google.com/store/apps/details?id=lecho.lib.hellocharts.samples).  

 - Short **video** is available on [**YouTube**](https://www.youtube.com/watch?v=xbSBjyjH2SY).



![](screens/scr_dependecy_preview.gif)



![](screens/scr-tempo.png)



![](screens/scr-dependency.png)



![](screens/scr-preview-column.png)



![](screens/scr-pie1.png)



![](screens/scr-bubble1.png)



![](screens/scr-combo.png)



## Download and Import



#### Android Studio/Gradle



 - Maven Central/jCenter, add dependency to your `build.gradle`:

 

 ```groovy

	dependencies{

 		compile 'com.github.lecho:hellocharts-library:1.5.8@aar'

	}

 ```

 

 - JitPack.io, add `jitpack.io` repositiory and dependency to your `build.gradle`:

 

 ```groovy

    repositories {

        maven {

            url "https://jitpack.io"

        }

    }

	

    dependencies {

        compile 'com.github.lecho:hellocharts-android:v1.5.8'

    }

 ```

 

#### Eclipse/ADT



 - Download the latest [release jar file](https://github.com/lecho/hellocharts-android/releases).

 - Copy `hellocharts-library-.jar` into the `libs` folder of your application project.



## Usage



Every chart view can be defined in layout xml file:



 ```xml

    

 ```



 or created in code and added to layout later:



 ```java

    LineChartView chart = new LineChartView(context);

    layout.addView(chart);

 ```



 Use methods from *Chart classes to define chart behaviour, example methods:



 ```java

    Chart.setInteractive(boolean isInteractive);

    Chart.setZoomType(ZoomType zoomType);

    Chart.setContainerScrollEnabled(boolean isEnabled, ContainerScrollType type);

 ```



 Use methods from data models to define how chart looks like, example methods:



 ```java

    ChartData.setAxisXBottom(Axis axisX);

    ColumnChartData.setStacked(boolean isStacked);

    Line.setStrokeWidth(int strokeWidthDp);

 ```



 Every chart has its own method to set chart data and its own data model, example for line chart:



 ```java

    List values = new ArrayList();

    values.add(new PointValue(0, 2));

    values.add(new PointValue(1, 4));

    values.add(new PointValue(2, 3));

    values.add(new PointValue(3, 4));



    //In most cased you can call data model methods in builder-pattern-like manner.

    Line line = new Line(values).setColor(Color.BLUE).setCubic(true);

    List lines = new ArrayList();

    lines.add(line);



    LineChartData data = new LineChartData();

    data.setLines(lines);



	LineChartView chart = new LineChartView(context);

    chart.setLineChartData(data);

 ```



 After the chart data has been set you can still modify its attributes but right after that you should call

 `set*ChartData()` method again to let chart recalculate and redraw data. There is also an option to use copy constructor for deep copy of

 chart data. You can safely modify copy in other threads and pass it to `set*ChartData()` method later.



## Contributing



Yes:) If you found a bug, have an idea how to improve library or have a question, please create new issue or comment existing one. If you would like to contribute code fork the repository and send a pull request.



# License



	HelloCharts	

    Copyright 2014 Leszek Wach



    Licensed under the Apache License, Version 2.0 (the "License");

    you may not use this file except in compliance with the License.

    You may obtain a copy of the License at



       http://www.apache.org/licenses/LICENSE-2.0



    Unless required by applicable law or agreed to in writing, software

    distributed under the License is distributed on an "AS IS" BASIS,

    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    See the License for the specific language governing permissions and

    limitations under the License.



---

     HelloCharts library uses code from InteractiveChart sample available 

     on Android Developers page:

	 

       http://developer.android.com/training/gestures/scale.html