jykenan 2014-01-16
接着上文,构建柱形图的步骤和构建饼图的步骤一样,主要分为以下三步,还需要在项目中引入AChartEngine依赖jar包,在Manifest中添加:<activityandroid:name="org.achartengine.GraphicalActivity" />
XYMultipleSeriesRenderer renderer = buildBarRenderer(colors);// 柱形图颜色设置 setChartSettings(renderer, "柱形图示例", "月份", "数量", 0.5, 12.5, 0, 2400, Color.GRAY, Color.LTGRAY);// 设置柱形图标题,横轴(X轴)、纵轴(Y轴)、最小的伸所刻度、最大的伸所刻度 renderer.getSeriesRendererAt(0).setDisplayChartValues(true);// 在第0条柱形图上显示数据 renderer.getSeriesRendererAt(1).setDisplayChartValues(true);// 在第1条柱形图上显示数据 renderer.setXLabels(12); renderer.setYLabels(10); renderer.setXLabelsAlign(Align.LEFT);// 数据从左到右显示 renderer.setYLabelsAlign(Align.LEFT); renderer.setPanEnabled(true, false); renderer.setZoomEnabled(true); renderer.setZoomButtonsVisible(true);// 显示放大缩小功能按钮 renderer.setZoomRate(1.1f); renderer.setBarSpacing(0.5f);// 柱形图间隔 |
protected XYMultipleSeriesDataset buildBarDataset(String[] titles, List<double[]> values) {//柱形图的数据源和饼图差不多,也是由一些键值对组成 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; } |
mChartView = ChartFactory.getBarChartView(getApplicationContext(), buildBarDataset(titles, values), renderer, Type.DEFAULT); renderer.setClickEnabled(true); //renderer.set mLinear.addView(mChartView, new LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); |
运行效果图:
code
package com.qiuzhping.achart; 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.CategorySeries; import org.achartengine.model.XYMultipleSeriesDataset; import org.achartengine.renderer.SimpleSeriesRenderer; import org.achartengine.renderer.XYMultipleSeriesRenderer; import android.app.Activity; import android.content.Intent; import android.graphics.Color; import android.graphics.Paint.Align; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.ViewGroup.LayoutParams; import android.widget.LinearLayout; public class BarChartBuilder extends Activity { private GraphicalView mChartView; public void back(View v) { Log.i("qiuzhping", "back onClick"); Intent intent = new Intent(); intent.setClass(BarChartBuilder.this, MainActivity.class); startActivity(intent); BarChartBuilder.this.finish(); } 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); } 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; } protected XYMultipleSeriesDataset buildBarDataset(String[] titles, List<double[]> values) {//柱形图的数据源和饼图差不多,也是由一些键值对组成 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; } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.xy_chart); LinearLayout mLinear = (LinearLayout) findViewById(R.id.chart); mLinear.setBackgroundColor(Color.BLACK); String[] titles = new String[] { "2012", "2013" }; List<double[]> values = new ArrayList<double[]>(); values.add(new double[] { 1423, 1230, 1424, 1524, 1590, 1920, 2203, 2120, 1950, 1550, 1260, 1400 }); values.add(new double[] { 523, 730, 924, 1054, 790, 920, 1200, 1100, 950, 1500, 1100, 1500 }); int[] colors = new int[] { Color.RED, Color.BLUE }; XYMultipleSeriesRenderer renderer = buildBarRenderer(colors);// 柱形图颜色设置 setChartSettings(renderer, "柱形图示例", "月份", "数量", 0.5, 12.5, 0, 2400, Color.GRAY, Color.LTGRAY);// 设置柱形图标题,横轴(X轴)、纵轴(Y轴)、最小的伸所刻度、最大的伸所刻度 renderer.getSeriesRendererAt(0).setDisplayChartValues(true);// 在第0条柱形图上显示数据 renderer.getSeriesRendererAt(1).setDisplayChartValues(true);// 在第1条柱形图上显示数据 renderer.setXLabels(12); renderer.setYLabels(10); renderer.setXLabelsAlign(Align.LEFT);// 数据从左到右显示 renderer.setYLabelsAlign(Align.LEFT); renderer.setPanEnabled(true, false); renderer.setZoomEnabled(true); renderer.setZoomButtonsVisible(true);// 显示放大缩小功能按钮 renderer.setZoomRate(1.1f); renderer.setBarSpacing(0.5f);// 柱形图间隔 if (mChartView == null) {// 构建柱形图 mChartView = ChartFactory.getBarChartView(getApplicationContext(), buildBarDataset(titles, values), renderer, Type.DEFAULT); renderer.setClickEnabled(true); //renderer.set mLinear.addView(mChartView, new LayoutParams( LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); } else mChartView.repaint(); } }
对应的完整项目:http://download.csdn.net/detail/qiu_11/6854803
未完待续。。。。。
(二)AChartEngine应用之PieChart(饼图)
(三)AChartEngine应用之BarChart(柱形图)