AChartEngine應(yīng)用之BarChart(柱形圖)
接著上文,構(gòu)建柱形圖的步驟和構(gòu)建餅圖的步驟一樣,主要分為以下三步,還需要在項(xiàng)目中引入AChartEngine依賴jar包,在Manifest中添加:<activityandroid:name="org.achartengine.GraphicalActivity" />
1.設(shè)置XYMultipleSeriesRenderer主要描繪器
XYMultipleSeriesRenderer renderer = buildBarRenderer(colors);// 柱形圖顏色設(shè)置 setChartSettings(renderer, "柱形圖示例", "月份", "數(shù)量", 0.5, 12.5, 0, 2400, Color.GRAY, Color.LTGRAY);// 設(shè)置柱形圖標(biāo)題,橫軸(X軸)、縱軸(Y軸)、最小的伸所刻度、最大的伸所刻度 renderer.getSeriesRendererAt(0).setDisplayChartValues(true);// 在第0條柱形圖上顯示數(shù)據(jù) renderer.getSeriesRendererAt(1).setDisplayChartValues(true);// 在第1條柱形圖上顯示數(shù)據(jù) renderer.setXLabels(12); renderer.setYLabels(10); renderer.setXLabelsAlign(Align.LEFT);// 數(shù)據(jù)從左到右顯示 renderer.setYLabelsAlign(Align.LEFT); renderer.setPanEnabled(true, false); renderer.setZoomEnabled(true); renderer.setZoomButtonsVisible(true);// 顯示放大縮小功能按鈕 renderer.setZoomRate(1.1f); renderer.setBarSpacing(0.5f);// 柱形圖間隔 |
2.構(gòu)建數(shù)據(jù)源XYMultipleSeriesDataset
protected XYMultipleSeriesDataset buildBarDataset(String[] titles, List<double[]> values) {//柱形圖的數(shù)據(jù)源和餅圖差不多,也是由一些鍵值對組成 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; } |
3.通過ChartFactory獲取柱形圖
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)); |
運(yùn)行效果圖:
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) {//柱形圖的數(shù)據(jù)源和餅圖差不多,也是由一些鍵值對組成 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);// 柱形圖顏色設(shè)置 setChartSettings(renderer, "柱形圖示例", "月份", "數(shù)量", 0.5, 12.5, 0, 2400, Color.GRAY, Color.LTGRAY);// 設(shè)置柱形圖標(biāo)題,橫軸(X軸)、縱軸(Y軸)、最小的伸所刻度、最大的伸所刻度 renderer.getSeriesRendererAt(0).setDisplayChartValues(true);// 在第0條柱形圖上顯示數(shù)據(jù) renderer.getSeriesRendererAt(1).setDisplayChartValues(true);// 在第1條柱形圖上顯示數(shù)據(jù) renderer.setXLabels(12); renderer.setYLabels(10); renderer.setXLabelsAlign(Align.LEFT);// 數(shù)據(jù)從左到右顯示 renderer.setYLabelsAlign(Align.LEFT); renderer.setPanEnabled(true, false); renderer.setZoomEnabled(true); renderer.setZoomButtonsVisible(true);// 顯示放大縮小功能按鈕 renderer.setZoomRate(1.1f); renderer.setBarSpacing(0.5f);// 柱形圖間隔 if (mChartView == null) {// 構(gòu)建柱形圖 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(); } }
對應(yīng)的完整項(xiàng)目:http://download.csdn.net/detail/qiu_11/6854803
未完待續(xù)。。。。。
AChartEngine應(yīng)用系列文章
(二)AChartEngine應(yīng)用之PieChart(餅圖)
(三)
AChartEngine應(yīng)用之BarChart(柱形圖)
(四)
AChartEngine應(yīng)用之PieChart(動(dòng)態(tài)餅圖,允許產(chǎn)生動(dòng)態(tài)數(shù)據(jù)并顯示)
(五)
AChartEngine應(yīng)用之LineChart(模擬生命特征值圖)
(六)
AChartEngine應(yīng)用之LineChart(模擬三角函數(shù)sin,cos)
(七) AChartEngine高級應(yīng)用 CombinedXYChart (組合統(tǒng)計(jì)圖)
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