Android Chart Using AChart Engine Library

android-chart-using-library-achartengineAndroid Chart Using AChart Engine Library

Download library here

MainActivity.java :

package com.example.androidchart;

import java.util.Random;

import org.achartengine.ChartFactory;
import org.achartengine.GraphicalView;
import org.achartengine.chart.BarChart.Type;
import org.achartengine.chart.PointStyle;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.model.XYSeries;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;

import android.app.Activity;
//import android.database.Cursor;
//import android.database.sqlite.SQLiteDatabase;
import android.graphics.Color;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.Menu;
import android.widget.LinearLayout;

public class MainActivity extends Activity {
//	protected Cursor cursor;
//	SQLHelper dbHelper;

	private GraphicalView mChart;

	private XYSeries visitsSeries ;
	private XYMultipleSeriesDataset dataset;

	private XYSeriesRenderer visitsRenderer;
	private XYMultipleSeriesRenderer multiRenderer;

	public double[] arrnilai = {18,16,13,12,10};
	public String[] arrurutan = {"1", "2", "3", "4", "5"}; //"14/4", "18/4", "24/4", "30/4", "7/5"};
	public String[] arrlabel = {"ASII", "TLKM", "UNVR", "UNTR", "AALI"};

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

/*        dbHelper = new SQLHelper(this);

        SQLiteDatabase db = dbHelper.getReadableDatabase();

		cursor = db.rawQuery("SELECT * FROM histori WHERE id_member = '" + MainActivity.idlogin + "' ORDER BY id_histori ASC",null);

		arrlemak = new double[cursor.getCount()];
		arrurutan = new String[cursor.getCount()];
		arrtgl = new String[cursor.getCount()];
		cursor.moveToFirst();
		for (int cc=0; cc < cursor.getCount(); cc++)
		{
			cursor.moveToPosition(cc);
			arrlemak[cc] = Double.parseDouble(cursor.getString(2).toString());
			arrurutan[cc] = String.valueOf(cc+1);
			arrtgl[cc] = cursor.getString(4).toString();
		}
*/
        // Setting up chart
        setupChart();

        // Start plotting chart
        new ChartTask().execute();

    }

    private void setupChart(){

    	// Creating an  XYSeries for Visits
    	visitsSeries = new XYSeries("% kenaikan harga saham");

    	// Creating a dataset to hold each series
    	dataset = new XYMultipleSeriesDataset();
    	// Adding Visits Series to the dataset
    	dataset.addSeries(visitsSeries);    	

    	// Creating XYSeriesRenderer to customize visitsSeries
    	visitsRenderer = new XYSeriesRenderer();
    	visitsRenderer.setColor(Color.rgb(255, 0, 255));
    	visitsRenderer.setPointStyle(PointStyle.CIRCLE);
    	visitsRenderer.setFillPoints(true);
    	visitsRenderer.setLineWidth(2);
    	visitsRenderer.setDisplayChartValues(true);

    	// Creating a XYMultipleSeriesRenderer to customize the whole chart
    	multiRenderer = new XYMultipleSeriesRenderer();

    	multiRenderer.setChartTitle("% kenaikan harga saham");
    	multiRenderer.setXTitle("kode saham");
    	multiRenderer.setYTitle("kenaikan harga");
    	multiRenderer.setZoomButtonsVisible(true);
    	multiRenderer.setXLabels(0);

    	multiRenderer.setXAxisMin(0);
    	multiRenderer.setXAxisMax(5);

    	multiRenderer.setYAxisMin(0);
    	multiRenderer.setYAxisMax(40);

    	multiRenderer.setBarSpacing(2);

    	// Adding visitsRenderer to multipleRenderer
    	// Note: The order of adding dataseries to dataset and renderers to multipleRenderer
    	// should be same
    	multiRenderer.addSeriesRenderer(visitsRenderer);

    	// Getting a reference to LinearLayout of the MainActivity Layout
    	LinearLayout chartContainer = (LinearLayout) findViewById(R.id.chart_container);

    	mChart = (GraphicalView) ChartFactory.getBarChartView(getBaseContext(), dataset, multiRenderer, Type.DEFAULT);

   		// Adding the Line Chart to the LinearLayout
    	chartContainer.addView(mChart);

    }

    private class ChartTask extends AsyncTask<Void, String, Void>{

    	// Generates dummy data in a non-ui thread
		@Override
		protected Void doInBackground(Void... params) {
			int i = 0;
			try{
				do{
					String [] values = new String[3];
					Random r = new Random();
					int visits = r.nextInt(10);

					values[0] = arrurutan[i]; // Integer.toString(i);
					values[1] = String.valueOf(arrnilai[i]); //Integer.toString(visits);
					values[2] = arrlabel[i];

					publishProgress(values);
					Thread.sleep(750);
					i++;
				}while(i<=4);
			}catch(Exception e){ }
			return null;
		}

		// Plotting generated data in the graph
		@Override
		protected void onProgressUpdate(String... values) {
			visitsSeries.add(Double.parseDouble(values[0]), Double.parseDouble(values[1]));
			multiRenderer.addXTextLabel(Double.parseDouble(values[0]), arrlabel[Integer.parseInt(values[0])-1]);
			mChart.repaint();
		}

    }    

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }
}

activity_main.xml :

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/tv_title"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:gravity="center_horizontal"
        android:text="Android Chart" />

    <LinearLayout
        android:id="@+id/chart_container"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/tv_title" >

    </LinearLayout>

</RelativeLayout>

AndroidManifest.xml :

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.androidchart"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="16" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.androidchart.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Result :

android-chart-using-library-achartengine

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