使用achartengine实现自定义折线图 ----附代码 调试OK

achartengine作为android开发中最常用的实现图标的开源框架，使用比较方便，参考官方文档谢了如下Demo，实现了自定义折线图。

package edu.ustb.chart;import org.achartengine.ChartFactory;import org.achartengine.GraphicalView;import org.achartengine.chart.PointStyle;import org.achartengine.model.SeriesSelection;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.graphics.Color;import android.os.Bundle;import android.view.View;import android.view.ViewGroup.LayoutParams;import android.widget.LinearLayout;import android.widget.Toast;public class MainActivity extends Activity {private GraphicalView mChartView;private XYMultipleSeriesRenderer mRenderer = new XYMultipleSeriesRenderer();private XYMultipleSeriesDataset mDataset = new XYMultipleSeriesDataset();double[] xdata = new double[] { 11, 22, 33, 44, 55, 66, 77, 88, 99, 110 };double[] ydata = new double[] { 11, 11, 22, 33, 44, 55, 66, 77, 88, 99 };@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);}/** * 得到住渲染器，并对其各项属性进行设置 *  * @return */public XYMultipleSeriesRenderer getRenderer() {/** 设置主渲染器的各种属性 */// 设置背景色是否启用mRenderer.setApplyBackgroundColor(true);// 设置背景色mRenderer.setBackgroundColor(Color.argb(100, 20, 30, 40));// 设置x y轴标题字体大小mRenderer.setAxisTitleTextSize(16);// 设置表格标题字体大小mRenderer.setChartTitleTextSize(20);// 设置标签字体大小mRenderer.setLabelsTextSize(15);// 设置图例字体大小mRenderer.setLegendTextSize(15);mRenderer.setMargins(new int[] { 20, 20, 20, 20 });// 设置是否显示放大缩小按钮mRenderer.setZoomButtonsVisible(true);// 设置图表上显示点的大小mRenderer.setPointSize(5);// create a new renderer for the new seriesXYSeriesRenderer renderer = new XYSeriesRenderer();// set some renderer propertiesrenderer.setPointStyle(PointStyle.CIRCLE);renderer.setFillPoints(true);renderer.setDisplayChartValues(true);renderer.setDisplayChartValuesDistance(100);renderer.setColor(Color.RED);setSeriesWidgetsEnabled(true);mRenderer.addSeriesRenderer(renderer);return mRenderer;}/** * 得到住渲染器，并对其各项属性进行设置 *  * @return */public XYMultipleSeriesDataset getDataset() {String seriesTitle = "健康数据";XYSeries mSeries = new XYSeries(seriesTitle);for (int i = 0; i < 10; i++) {double x = xdata[i];double y = ydata[i];// 把坐标添加到当前序列中去mSeries.add(x, y);}mDataset.addSeries(mSeries);return mDataset;}@Overrideprotected void onResume() {super.onResume();if (mChartView == null) {LinearLayout layout = (LinearLayout) findViewById(R.id.chart);mChartView = ChartFactory.getLineChartView(this, getDataset(), getRenderer());// enable the chart click eventsmRenderer.setClickEnabled(true);mRenderer.setSelectableBuffer(10);mChartView.setOnClickListener(new View.OnClickListener() {public void onClick(View v) {// handle the click event on the chartSeriesSelection seriesSelection = mChartView.getCurrentSeriesAndPoint();if (seriesSelection == null) {Toast.makeText(MainActivity.this, "No chart element", Toast.LENGTH_SHORT).show();} else {// display information of the clicked pointToast.makeText(MainActivity.this, "Chart element in series index " + seriesSelection.getSeriesIndex() + " data point index " + seriesSelection.getPointIndex() + " was clicked" + " closest point value X=" + seriesSelection.getXValue() + ", Y=" + seriesSelection.getValue(), Toast.LENGTH_SHORT).show();}}});layout.addView(mChartView, new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));boolean enabled = mDataset.getSeriesCount() > 0;setSeriesWidgetsEnabled(enabled);} else {mChartView.repaint();}}/** * Enable or disable the add data to series widgets *  * @param enabled *            the enabled state */private void setSeriesWidgetsEnabled(boolean enabled) {// mX.setEnabled(enabled);// mY.setEnabled(enabled);// mAdd.setEnabled(enabled);}}