How to use Achartengine to generate charts in Android _android

I used the chart function to do the project today, and I recorded it.

Achartengine is a Google Open source project that can download technical documents, jar packs, and project source code in https://code.google.com/p/achartengine/

Demo Download: https://code.google.com/p/achartengine/downloads/list

One, pie-like chart

New project, add Achartengine jar pack

Piechart.java

Copy Code code as follows:

Package Com.meritit.footlottery.view;

Import Org.achartengine.ChartFactory;
Import org.achartengine.model.CategorySeries;
Import Org.achartengine.renderer.DefaultRenderer;
Import Org.achartengine.renderer.SimpleSeriesRenderer;

Import Android.content.Context;
Import Android.graphics.Color;
Import Android.view.View;

Public class Piechart {
 public View Execute (Context context) {
  int[] colors = new int[] {Color . RED, Color.yellow, color.blue};
  defaultrenderer renderer = buildcategoryrenderer (colors);
  categoryseries categoryseries = new Categoryseries ("Vehicles Chart");
  categoryseries.add ("Sheng", 30);
  categoryseries.add ("negative", 20);
  categoryseries.add ("flat", 60);
  return chartfactory
    .getpiechartview (context, categoryseries, renderer );
 }

Protected Defaultrenderer buildcategoryrenderer (int[] colors) {
Defaultrenderer renderer = new Defaultrenderer ();
for (int color:colors) {
Simpleseriesrenderer r = new Simpleseriesrenderer ();
R.setcolor (color);
Renderer.addseriesrenderer (R);
}
Show labels
Renderer.setshowlabels (TRUE);
Do not show bottom description
Renderer.setshowlegend (FALSE);
Set Label font size
Renderer.setlabelstextsize (15);
Renderer.setlabelscolor (Color.Black);
Renderer.setzoomenabled (FALSE);
Renderer.setpanenabled (FALSE);
return renderer;
}
}

How to use

Copy Code code as follows:

View Piechart = new Piechart (). Execute (this);
Chartarea.addview (Piechart);

Get a View object, AddView directly below the layout you want to add

Second, columnar chart

Copy Code code as follows:

Package Com.meritit.footlottery.view;

Import Java.util.Random;

Import Org.achartengine.ChartFactory;
Import Org.achartengine.chart.BarChart.Type;
Import org.achartengine.model.CategorySeries;
Import Org.achartengine.model.XYMultipleSeriesDataset;
Import Org.achartengine.renderer.DefaultRenderer;
Import Org.achartengine.renderer.SimpleSeriesRenderer;
Import Org.achartengine.renderer.XYMultipleSeriesRenderer;

Import COM.MERITIT.FOOTLOTTERY.R;

Import Android.content.Context;
Import Android.graphics.Color;
Import Android.view.View;

public class Barchart {
private context;
Public View Execute (context context) {
This.context = context;
Return chartfactory
. Getbarchartview (context, Getbardemodataset (), Getbardemorenderer (), type.default);
}

/**
* Xymultipleseriesdataset type Object that provides the dataset that the chart needs to represent.
* Here we use Getbardemodataset to get it.
*/
Private Xymultipleseriesdataset Getbardemodataset () {
Xymultipleseriesdataset DataSet = new Xymultipleseriesdataset ();
Final int nr = 10;
Random r = new Random ();
for (int i = 0; i < 3; i++) {
Categoryseries series = new Categoryseries ("Team" + (i + 1));
for (int k = 0; k < nr; k++) {
Series.add (+ r.nextint ()% 100);
}
Dataset.addseries (Series.toxyseries ());
}
return dataset;
}

/**
* An object of type Xymultipleseriesrenderer to provide some style for the presentation of the chart,
* Here we use the Getbardemorenderer method to get it.
* The Getbardemorenderer method constructs a xymultipleseriesrenderer used to set the respective colors of the 2 series
*/
Public Xymultipleseriesrenderer Getbardemorenderer () {
Xymultipleseriesrenderer renderer = new Xymultipleseriesrenderer ();
Simpleseriesrenderer r = new Simpleseriesrenderer ();
R.setcolor (Color.Blue);
Renderer.addseriesrenderer (R);
R = new Simpleseriesrenderer ();
R.setcolor (Color.green);
Renderer.addseriesrenderer (R);
R = new Simpleseriesrenderer ();
R.setcolor (color.red);
Renderer.addseriesrenderer (R);
Renderer.setapplybackgroundcolor (TRUE);
Renderer.setbackgroundcolor (color.transparent);
Renderer.setmarginscolor (Context.getresources (). GetColor (R.color.main_background_color));
Renderer.setzoomenabled (False, false);
Renderer.setpanenabled (False, false);
Renderer.setlabelstextsize (15);
Renderer.setlabelscolor (Color.Black);
Setchartsettings (renderer);
return renderer;
}

/**
* The Setchartsettings method sets the bottom axis style.
*/
private void Setchartsettings (Xymultipleseriesrenderer renderer) {
Renderer.setcharttitle ("Record Analysis");
Renderer.setxtitle ("horizontal axis");
Renderer.setytitle ("ordinate");
Renderer.setxaxismin (0.5);
Renderer.setxaxismax (10.5);
Renderer.setyaxismin (0);
Renderer.setyaxismax (210);
}
}

The code section above explains:
Renderer.setapplybackgroundcolor (TRUE); Set background to enable, true setting background below valid

Renderer.setbackgroundcolor (color.transparent); Set background

Renderer.setmarginscolor ()//Set color of surrounding area

Renderer.setzoomenabled (False, false); Whether the settings can be enlarged

Renderer.setpanenabled (False, false); Set whether you can move

Renderer.setlabelstextsize (15); Set Label text size
Renderer.setlabelscolor (Color.Black);