I'm new in android and I want to use achartengine to implement time chart that represent the daily outgoing call durations from call log.
Does any one know how can I do this and what should I do?
So you need a layout (main.xml):
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:id="@+id/chart"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" />
<LinearLayout
android:id="@+id/layXzoom"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:orientation="horizontal"
android:padding="5dp" >
</LinearLayout>
</RelativeLayout>
and activity (TestgrafActivity.java):
package si.pd.testgraf;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Random;
import org.achartengine.ChartFactory;
import org.achartengine.GraphicalView;
import org.achartengine.chart.PointStyle;
import org.achartengine.chart.TimeChart;
import org.achartengine.model.TimeSeries;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;
import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.widget.LinearLayout;
public class TestgrafActivity extends Activity {
/** Called when the activity is first created. */
private XYMultipleSeriesDataset mDataset;
private XYMultipleSeriesRenderer mRenderer;
List<double[]> values = new ArrayList<double[]>();
private GraphicalView mChartView;
private TimeSeries time_series;
// chart container
private LinearLayout layout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
layout = (LinearLayout) findViewById(R.id.chart);
// create dataset and renderer
mDataset = new XYMultipleSeriesDataset();
mRenderer = new XYMultipleSeriesRenderer();
mRenderer.setAxisTitleTextSize(16);
mRenderer.setChartTitleTextSize(20);
mRenderer.setLabelsTextSize(15);
mRenderer.setLegendTextSize(15);
mRenderer.setPointSize(3f);
XYSeriesRenderer r = new XYSeriesRenderer();
r.setColor(Color.GREEN);
r.setPointStyle(PointStyle.CIRCLE);
r.setFillPoints(true);
mRenderer.addSeriesRenderer(r);
mRenderer.setClickEnabled(true);
mRenderer.setSelectableBuffer(20);
mRenderer.setPanEnabled(true);
time_series = new TimeSeries("test");
mDataset.addSeries(time_series);
fillData();
mChartView = ChartFactory.getTimeChartView(this, mDataset, mRenderer,
"H:mm:ss");
layout.addView(mChartView);
}
private void fillData() {
long value = new Date().getTime() - 3 * TimeChart.DAY;
for (int i = 0; i < 100; i++) {
time_series.add(new Date(value + i * TimeChart.DAY / 4), i);
}
}
}
I didn't tested the code so maybe there are some errors. Just wanted that you get the picture.
I did test at home. If you give me an email, I can send you eclipse project.
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