Thursday 6 June 2013

Draw Piechart in Android using achartengine

Here Below CreatePieChart() method will be create piechart using Achartengine in Android.
In  CreatePieChart()  method org.achartengine.GraphicalActivity class is Responsable to create PieChart.


Android Activity(PieChart.java)

package com.androidsurya.piechart;

import org.achartengine.ChartFactory;
import org.achartengine.model.CategorySeries;
import org.achartengine.renderer.DefaultRenderer;
import org.achartengine.renderer.SimpleSeriesRenderer;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.view.Menu;

public class PieChart extends Activity {

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

private void CreatePieChart() {

// Pie Chart Section Names
String[] code = new String[] { "IOS", "ANDROID" };

// Pie Chart Section Value
double[] distribution = { 40, 60 };

// Color of each Pie Chart Sections
int[] colors = { Color.GRAY, Color.GREEN };

// Instantiating CategorySeries to plot Pie Chart
CategorySeries distributionSeries = new CategorySeries(
"Mobile Platforms");
for (int i = 0; i < distribution.length; i++) {
// Adding a slice with its values and name to the Pie Chart
distributionSeries.add(code[i], distribution[i]);
}
// Instantiating a renderer for the Pie Chart
DefaultRenderer defaultRenderer = new DefaultRenderer();
for (int i = 0; i < distribution.length; i++) {
SimpleSeriesRenderer seriesRenderer = new SimpleSeriesRenderer();
seriesRenderer.setColor(colors[i]);
seriesRenderer.setDisplayChartValues(true);
// Adding a renderer for a slice
defaultRenderer.addSeriesRenderer(seriesRenderer);
}
defaultRenderer.setLegendTextSize(30);
defaultRenderer.setChartTitle("Mobile Platforms");
defaultRenderer.setChartTitleTextSize(20);
defaultRenderer.setZoomButtonsVisible(true);
defaultRenderer.setBackgroundColor(45454545);

// Creating an intent to plot bar chart using dataset and
// multipleRenderer
Intent intent = ChartFactory.getPieChartIntent(getBaseContext(),
distributionSeries, defaultRenderer,
"PieChart");

// Start Activity
startActivity(intent);

}

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

Android Manifest file

 <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.androidsurya.piechart.PieChart"
            android:label="@string/title_activity_main" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

Note: 
 Don't Forget Register this Below Activity In Manifest File
   <activity android:name="org.achartengine.GraphicalActivity" />

Output Screenshot:





















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