GraphViewGenerator.java

package com.num.ui.viewgenerator;

import org.achartengine.ChartFactory;
import org.achartengine.GraphicalView;
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 com.num.models.GraphData;
import com.num.models.GraphPoint;
import com.num.models.Model;
import com.num.models.Row;
import com.num.R;

import android.content.Context;
import android.graphics.Color;
import android.graphics.Typeface;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;

public class GraphViewGenerator extends ViewGenerator {

	ViewHolder holder;
	private XYMultipleSeriesDataset dataset;
	private XYMultipleSeriesRenderer renderer;
	private XYSeries mCurrentSeries;
	private XYSeriesRenderer mCurrentRenderer;
	private GraphicalView mChartView;
	private int index = 0;
	private XYSeries xy;

	private GraphData data;

	public GraphViewGenerator(GraphData data) {
		super(R.layout.cell_view_graph);
		holder = new ViewHolder();
		this.data = data;
	}

	@Override
	public ViewHolder fillViewHolder(View view, LayoutInflater inflater) {

		holder.linear = (LinearLayout) view.findViewById(R.id.chart);

		return holder;
	}

	@Override
	public void populateView(Row item, Context context, View view) {

		createGraph(context);

		updateGraph(context);
	}

	private void updateGraph(Context context) {

		renderer.setXAxisMax(data.getPoints().size() - 1);

		int count = 0;
		for (GraphPoint point : data.getPoints()) {
			xy.add(count++, point.y);
		}

		mChartView.repaint();

	}

	private void createGraph(Context context) {

		renderer = new XYMultipleSeriesRenderer();
		xy = new XYSeries("");

		renderer.setMargins(new int[] { 0, 20, -30, 0 });

		renderer.setYAxisMax(data.getyMax() * 1.2);
		renderer.setXAxisMin(0.0);
		renderer.setYAxisMin(0.0);
		renderer.setApplyBackgroundColor(true);
		renderer.setBackgroundColor(context.getResources().getColor(
				R.color.black));
		renderer.setMarginsColor(context.getResources().getColor(R.color.black));
		renderer.setGridColor(context.getResources()
				.getColor(R.color.dark_blue));

		renderer.setLabelsTextSize(14);

		renderer.setPointSize(0);
		dataset = new XYMultipleSeriesDataset();
		dataset.addSeries(xy);
		mCurrentSeries = xy;
		XYSeriesRenderer seriesrenderer = new XYSeriesRenderer();
		renderer.addSeriesRenderer(seriesrenderer);
		seriesrenderer.setPointStyle(PointStyle.CIRCLE);
		seriesrenderer.setFillPoints(true);
		seriesrenderer.setChartValuesSpacing(2);
		seriesrenderer.setFillBelowLine(true);
		seriesrenderer.setColor(context.getResources().getColor(
				R.color.light_blue));
		seriesrenderer.setFillBelowLineColor(context.getResources().getColor(
				R.color.mid_blue));
		seriesrenderer.setLineWidth(2);

		// mChartView = ChartFactory.getBarChartView(context, dataset, renderer,
		// org.achartengine.chart.BarChart.Type.DEFAULT);
		// mChartView = ChartFactory.getLineChartView(context, dataset,
		// renderer);
		mChartView = ChartFactory.getCubeLineChartView(context, dataset,
				renderer, 0);

		renderer.setAxesColor(context.getResources()
				.getColor(R.color.dark_blue));
		renderer.setPanEnabled(false, false);
		renderer.setZoomEnabled(false, false);
		renderer.setChartTitle(data.getxAxisTitle());
		renderer.setChartTitleTextSize(20);
		renderer.setTextTypeface("Bold", Typeface.NORMAL);
		// renderer.setChartValuesTextSize(//arg0)
		renderer.setClickEnabled(false);
		renderer.setShowGridX(true);
		renderer.setInScroll(true);
		renderer.setSelectableBuffer(100);
		holder.linear.addView(mChartView, new LayoutParams(
				LayoutParams.FILL_PARENT, 250));

	}

}