สร้างกราฟ Line Chart บน Android ด้วย AChartEngine

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
}

maven {
    url "https://repository-achartengine.forge.cloudbees.com/snapshot/"
}

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.11.+'

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        mavenCentral()
        maven {
            url "https://repository-achartengine.forge.cloudbees.com/snapshot/"
        }
    }
}

dependencies {
    compile 'com.android.support:appcompat-v7:19.+'
    compile 'org.achartengine:achartengine:1.2.0'
}

package com.devahoy.sample.achartengine;

import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.os.Build;

public class MainActivity extends ActionBarActivity {

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

        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, new PlaceholderFragment())
                    .commit();
        }
    }

    /**
     * A placeholder fragment containing a simple view.
     */
    public static class PlaceholderFragment extends Fragment {

        public PlaceholderFragment() {}

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_main, container, false);
            return rootView;
        }
    }

}

private void initData() {
    String[] months = {
            "JAN", "FEB", "MAR", "APR", "MAY", "JUN",
            "JUL", "AUG", "SEP", "OCT", "NOV", "DEC"
    };

    int[] index = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};

    int[] incomeA = {4000, 5500, 2300, 2100, 2500, 2900, 3200, 2400, 1800, 2100, 3500, 5900};
    int[] incomeB = {3600, 4500, 3200, 3600, 2800, 1800, 2100, 2900, 2200, 2500, 4000, 3500};
    int[] incomeC = {4300, 4000, 3000, 3200, 2400, 2500, 2600, 3400, 3900, 4500, 5000, 4500};
}

XYSeries seriesA = new XYSeries("Googla");
XYSeries seriesB = new XYSeries("Microsa");
XYSeries seriesC = new XYSeries("Appla");

int length = index.length;
for (int i = 0; i < length; i++) {
    seriesA.add(index[i], incomeA[i]);
    seriesB.add(index[i], incomeB[i]);
    seriesC.add(index[i], incomeC[i]);
}

XYSeriesRenderer rendererA = new XYSeriesRenderer();
rendererA.setPointStyle(PointStyle.CIRCLE);
rendererA.setColor(Color.RED);
rendererA.setLineWidth(2);

XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
dataset.addSeries(seriesA);
dataset.addSeries(seriesB);
dataset.addSeries(seriesC);

XYMultipleSeriesRenderer multipleSeriesRenderer
    = new XYMultipleSeriesRenderer();

for (int i = 0; i < length; i++) {
    multipleSeriesRenderer.addXTextLabel(i + 1, months[i]);
}
multipleSeriesRenderer.setChartTitle("ตัวอย่างกราฟเส้น (Line Chart)");
multipleSeriesRenderer.setYTitle("ยอดขายรวม(สตางค์)");
multipleSeriesRenderer.setXTitle("ปี พ.ศ. 2600");
multipleSeriesRenderer.setZoomButtonsVisible(true);

multipleSeriesRenderer.addSeriesRenderer(rendererA);
multipleSeriesRenderer.addSeriesRenderer(rendererA);
multipleSeriesRenderer.addSeriesRenderer(rendererA);

drawChart(dataset, multipleSeriesRenderer);

<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"
    android:id="@+id/graph_container"
    tools:context="com.devahoy.sample.achartengine.MainActivity$PlaceholderFragment" >

</RelativeLayout>

private View mView;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_main, container, false);
    mView = rootView;
    initData();
    return rootView;
}

private void drawChart(XYMultipleSeriesDataset dataset,
                       XYMultipleSeriesRenderer renderer) {
    GraphicalView graphView =
            ChartFactory.getLineChartView(getActivity(), dataset, renderer);

    RelativeLayout container =
            (RelativeLayout) mView.findViewById(R.id.graph_container);

    container.addView(graphView);
}

XYSeriesRenderer rendererB = new XYSeriesRenderer();
rendererB.setPointStyle(PointStyle.X);
rendererB.setColor(Color.BLUE);
rendererB.setLineWidth(2);

XYSeriesRenderer rendererC = new XYSeriesRenderer();
rendererC.setPointStyle(PointStyle.DIAMOND);
rendererC.setColor(Color.GREEN);
rendererC.setLineWidth(2);

multipleSeriesRenderer.addSeriesRenderer(rendererA);
multipleSeriesRenderer.addSeriesRenderer(rendererA);
multipleSeriesRenderer.addSeriesRenderer(rendererA);

multipleSeriesRenderer.addSeriesRenderer(rendererA);
multipleSeriesRenderer.addSeriesRenderer(rendererB);
multipleSeriesRenderer.addSeriesRenderer(rendererC);

multipleSeriesRenderer.setXLabels(0);
multipleSeriesRenderer.setBackgroundColor(Color.WHITE);
multipleSeriesRenderer.setApplyBackgroundColor(true);
multipleSeriesRenderer.setMarginsColor(Color.WHITE);
multipleSeriesRenderer.setLabelsColor(Color.BLACK);
multipleSeriesRenderer.setAxesColor(Color.GRAY);
multipleSeriesRenderer.setYLabelsColor(0, Color.BLACK);
multipleSeriesRenderer.setXLabelsColor(Color.BLACK);