使用AChartEngine画动态柱状图:
1.定义类:
package com.example.test.achartengine;
import java.util.Date;
import java.util.List;
import org.achartengine.chart.PointStyle;
import org.achartengine.model.CategorySeries;
import org.achartengine.model.MultipleCategorySeries;
import org.achartengine.model.TimeSeries;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.model.XYSeries;
import org.achartengine.renderer.DefaultRenderer;
import org.achartengine.renderer.SimpleSeriesRenderer;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;
/**
* An abstract class for the demo charts to extend. It contains some methods for building datasets and renderers.
*/
public class AbstractDemoChart {
/**
* Builds an XY multiple dataset using the provided values.
*
* @param titles
* the series titles
* @param xValues
* the values for the X axis
* @param yValues
* the values for the Y axis
* @return the XY multiple dataset
*/
protected XYMultipleSeriesDataset buildDataset(String[] titles, List<double[]> xValues, List<double[]> yValues) {
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
addXYSeries(dataset, titles, xValues, yValues, 0);
return dataset;
}
public void addXYSeries(XYMultipleSeriesDataset dataset, String[] titles, List<double[]> xValues, List<double[]> yValues, int scale) {
int length = titles.length;
for (int i = 0; i < length; i++) {
XYSeries series = new XYSeries(titles[i], scale);
double[] xV = xValues.get(i);
double[] yV = yValues.get(i);
int seriesLength = xV.length;
for (int k = 0; k < seriesLength; k++) {
series.add(xV[k], yV[k]);
}
dataset.addSeries(series);
}
}
/**
* Builds an XY multiple series renderer.
*
* @param colors
* the series rendering colors
* @param styles
* the series point styles
* @return the XY multiple series renderers
*/
protected XYMultipleSeriesRenderer buildRenderer(int[] colors, PointStyle[] styles) {
XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
setRenderer(renderer, colors, styles);
return renderer;
}
protected void setRenderer(XYMultipleSeriesRenderer renderer, int[] colors, PointStyle[] styles) {
renderer.setAxisTitleTextSize(16);
renderer.setChartTitleTextSize(20);
renderer.setLabelsTextSize(15);
renderer.setLegendTextSize(15);
renderer.setPointSize(5f);
renderer.setMargins(new int[] { 20, 30, 15, 20 });
int length = colors.length;
for (int i = 0; i < length; i++) {
XYSeriesRenderer r = new XYSeriesRenderer();
r.setColor(colors[i]);
r.setPointStyle(styles[i]);
renderer.addSeriesRenderer(r);
}
}
/**
* Sets a few of the series renderer settings.
*
* @param renderer
* the renderer to set the properties to
* @param title
* the chart title
* @param xTitle
* the title for the X axis
* @param yTitle
* the title for the Y axis
* @param xMin
* the minimum value on the X axis
* @param xMax
* the maximum value on the X axis
* @param yMin
* the minimum value on the Y axis
* @param yMax
* the maximum value on the Y axis
* @param axesColor
* the axes color
* @param labelsColor
* the labels color
*/
protected void setChartSettings(XYMultipleSeriesRenderer renderer, String title, String xTitle, String yTitle, double xMin,
double xMax, double yMin, double yMax, int axesColor, int labelsColor) {
renderer.setChartTitle(title);
renderer.setXTitle(xTitle);
renderer.setYTitle(yTitle);
renderer.setXAxisMin(xMin);
renderer.setXAxisMax(xMax);
renderer.setYAxisMin(yMin);
renderer.setYAxisMax(yMax);
renderer.setAxesColor(axesColor);
renderer.setLabelsColor(labelsColor);
}
/**
* Builds an XY multiple time dataset using the provided values.
*
* @param titles
* the series titles
* @param xValues
* the values for the X axis
* @param yValues
* the values for the Y axis
* @return the XY multiple time dataset
*/
protected XYMultipleSeriesDataset buildDateDataset(String[] titles, List<Date[]> xValues, List<double[]> yValues) {
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
int length = titles.length;
for (int i = 0; i < length; i++) {
TimeSeries series = new TimeSeries(titles[i]);
Date[] xV = xValues.get(i);
double[] yV = yValues.get(i);
int seriesLength = xV.length;
for (int k = 0; k < seriesLength; k++) {
series.add(xV[k], yV[k]);
}
dataset.addSeries(series);
}
return dataset;
}
/**
* Builds a category series using the provided values.
*
* @param titles
* the series titles
* @param values
* the values
* @return the category series
*/
protected CategorySeries buildCategoryDataset(String title, double[] values) {
CategorySeries series = new CategorySeries(title);
int k = 0;
for (double value : values) {
series.add("Project " + ++k, value);
}
return series;
}
/**
* Builds a multiple category series using the provided values.
*
* @param titles
* the series titles
* @param values
* the values
* @return the category series
*/
protected MultipleCategorySeries buildMultipleCategoryDataset(String title, List<String[]> titles, List<double[]> values) {
MultipleCategorySeries series = new MultipleCategorySeries(title);
int k = 0;
for (double[] value : values) {
series.add(2007 + k + "", titles.get(k), value);
k++;
}
return series;
}
/**
* Builds a category renderer to use the provided colors.
*
* @param colors
* the colors
* @return the category renderer
*/
protected DefaultRenderer buildCategoryRenderer(int[] colors) {
DefaultRenderer renderer = new DefaultRenderer();
renderer.setLabelsTextSize(15);
renderer.setLegendTextSize(15);
renderer.setMargins(new int[] { 20, 30, 15, 0 });
for (int color : colors) {
SimpleSeriesRenderer r = new SimpleSeriesRenderer();
r.setColor(color);
renderer.addSeriesRenderer(r);
}
return renderer;
}
/**
* Builds a bar multiple series dataset using the provided values.
*
* @param titles
* the series titles
* @param values
* the values
* @return the XY multiple bar dataset
*/
protected XYMultipleSeriesDataset buildBarDataset(String[] titles, List<double[]> values) {
XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
int length = titles.length;
for (int i = 0; i < length; i++) {
CategorySeries series = new CategorySeries(titles[i]);
double[] v = values.get(i);
int seriesLength = v.length;
for (int k = 0; k < seriesLength; k++) {
series.add(v[k]);
}
dataset.addSeries(series.toXYSeries());
}
return dataset;
}
/**
* Builds a bar multiple series renderer to use the provided colors.
*
* @param colors
* the series renderers colors
* @return the bar multiple series renderer
*/
protected XYMultipleSeriesRenderer buildBarRenderer(int[] colors) {
XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
renderer.setAxisTitleTextSize(16);
renderer.setChartTitleTextSize(20);
renderer.setLabelsTextSize(15);
renderer.setLegendTextSize(15);
int length = colors.length;
for (int i = 0; i < length; i++) {
SimpleSeriesRenderer r = new SimpleSeriesRenderer();
r.setColor(colors[i]);
renderer.addSeriesRenderer(r);
}
return renderer;
}
}
柱状图类:
package com.example.test.achartengine;
import java.util.ArrayList;
import java.util.List;
import org.achartengine.ChartFactory;
import org.achartengine.GraphicalView;
import org.achartengine.chart.BarChart.Type;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import android.content.Context;
import android.graphics.Color;
import android.graphics.Paint.Align;
public class DynamicBarChart {
public AbstractDemoChart abstractDemoChart;
public XYMultipleSeriesRenderer renderer;
public XYMultipleSeriesDataset dataset;
public GraphicalView chartView;
private Context context;
private int[] colors;
private String[] titles;
private List<double[]> values;
public DynamicBarChart(Context context) {
super();
// TODO Auto-generated constructor stub
this.context = context;
abstractDemoChart = new AbstractDemoChart();
init();
}
private void init() {
titles = new String[] { "2014" };
values = new ArrayList<double[]>();
values.add(new double[] { 14230, 12300, 14240, 15244, 15900, 19200, 22030, 21200, 19500, 15500, 12600, 14000 });
colors = new int[] { Color.GRAY };
renderer = abstractDemoChart.buildBarRenderer(colors);
renderer.setXLabels(12);
renderer.setYLabels(10);
renderer.setXLabelsAlign(Align.LEFT);
renderer.setYLabelsAlign(Align.LEFT);
renderer.setPanEnabled(true, false);
// renderer.setZoomEnabled(false);
renderer.setZoomRate(1.1f);
renderer.setBarSpacing(0.5f);
abstractDemoChart.setChartSettings(renderer, "Monthly sales", "Month", "Units sold", 0.5, 12.5, 0, 24000, Color.GRAY, Color.LTGRAY);
dataset = abstractDemoChart.buildBarDataset(titles, values);
chartView = ChartFactory.getBarChartView(context, dataset, renderer, Type.DEFAULT);
}
public void setView() {
dataset = abstractDemoChart.buildBarDataset(titles, values);
chartView = ChartFactory.getBarChartView(context, dataset, renderer, Type.DEFAULT);
}
public void setValues(List<double[]> values) {
this.values = values;
}
public GraphicalView getChartView() {
return chartView;
}
}
2.使用方法:
private void addDynamicBarchart(Context context) {
mDynamicBarChartLayout = (LinearLayout) findViewById(R.id.dynamicbarchart);
mDynamicBarChart = new DynamicBarChart(context);
chartView = mDynamicBarChart.getChartView();
chartView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
chartView.setBackgroundColor(Color.BLACK);
mDynamicBarChartLayout.addView(chartView);
}
private void updateChart() {
updateVaules(); //更新Values
mDynamicBarChart.setValues(values);
mDynamicBarChart.setView();
mDynamicBarChartLayout.removeAllViews();
chartView = mDynamicBarChart.getChartView();
chartView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
chartView.setBackgroundColor(Color.BLACK);
mDynamicBarChartLayout.addView(chartView);
}
参考:http://blog.youkuaiyun.com/lk_blog/article/details/7645509