android 功能代码-----Android报表控件achartengine介绍(一)

忘是亡心i 2023-10-16 18:38 15阅读 0赞

AChartEngine是一个针对Android程序开发的免费图表开发库，目前已经发布了4个版本。支持散点图、折线图、饼图、气泡图、柱状图、短棒图、仪表图等多种图表。Android开发者可以很方便的试用AChartEngine Chart库画出各种图表。  
该项目地址位于：  
[http://code.google.com/p/achartengine/][http_code.google.com_p_achartengine]  
你可以选择合适的版本下载，每个版本都有一个jar包、实例源代码和java doc提供下载。当前最新版本为1.0。 ![点击查看原始大小图片][f20643bc-7db9-353e-a8cd-5e0df199f34b.jpg]  
![点击查看原始大小图片][e6c9907b-c0cf-3e17-84d6-f8e0ae703f3e.jpg]

![3eeb6515-4b76-341d-9239-b778766c3f02.png][]

更详细的介绍请查看[http://blog.csdn.net/lk\_blog/article/details/7645509][http_blog.csdn.net_lk_blog_article_details_7645509]

在下载的achartengine-1.0.0-demo-source官方的demo文档里面有了详细的代码演示了使用

其demo 类模型如下

1. ChartDemo这个类是整个应用程序的入口,运行之后的效果显示一个list.

2. IDemoChart接口,这个接口定义了三个方法,

getName()返回值是listitem上显示的标题;

getDesc()返回值是listitem上显示的描述内容.

excute(context)返回值是一个Intent,当点击listitem后跳转到此Intent.

3. AbstractDemoChart类是一个抽象类,实现接口IDemoChart接口,这个类中封装了构建DataSet和renderer的方法,目的快速构建我们的dataset和renderer.

Java代码 [ ![复制代码][icon_copy.gif]][_icon_copy.gif] ![收藏代码][icon_star.png]![spinner.gif][]

1.  /\*\* 
2.   \* 报表统一信息接口 
3.   \* \* 
4.   \*/
5.  public interface IChart \{
6.  
7.  String NAME = "name";
8.  String DESC = "desc";
9.  
10. /\*\* 
11.  \* 报表名 
12.  \* 
13.  \* @return 
14.  \*/
15. String getName();
16. 
17. /\*\* 
18.  \* 报表描述 
19.  \* 
20.  \* @return 
21.  \*/
22. String getDesc();
23. 
24. /\*\* 
25.  \* 返回值是一个Intent,当点击后跳转到此Intent. 
26.  \* 
27.  \* @param context 
28.  \* @return 
29.  \*/
30. Intent execute(Context context);
31. \}

/**
     * 报表统一信息接口
     *  * 
     */
    public interface IChart {
    
    	String NAME = "name";
    	String DESC = "desc";
    
    	/**
    	 * 报表名
    	 * 
    	 * @return
    	 */
    	String getName();
    
    	/**
    	 * 报表描述
    	 * 
    	 * @return
    	 */
    	String getDesc();
    
    	/**
    	 * 返回值是一个Intent,当点击后跳转到此Intent.
    	 * 
    	 * @param context
    	 * @return
    	 */
    	Intent execute(Context context);
    }

Java代码 [ ![复制代码][icon_copy.gif]][_icon_copy.gif] ![收藏代码][icon_star.png]![spinner.gif][]

1.  /\*\* 
2.   \* \* 
3.   \*/
4.  public abstract class AbstractChart implements IChart \{
5.  
6.  /\*\* 
7.   \* Builds an XY multiple dataset using the provided values. 构建 
8.   \* XYMultipleSeriesDataset 
9.   \* 
10.  \* @param titles 
11.  \* 每个序列的图例 
12.  \* @param xValues 
13.  \* X轴的坐标 
14.  \* 
15.  \* @param yValues 
16.  \* y轴的坐标 
17.  \* 
18.  \* @return the XY multiple dataset 
19.  \*/
20. protected XYMultipleSeriesDataset buildDataset(String\[\] titles, List<double\[\]> xValues, List<double\[\]> yValues) \{
21. XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
22. addXYSeries(dataset, titles, xValues, yValues, 0);
23. return dataset;
24. \}
25. 
26. // 向DataSet中添加序列. 
27. public void addXYSeries(XYMultipleSeriesDataset dataset, String\[\] titles, List<double\[\]> xValues, List<double\[\]> yValues, int scale) \{
28. int length = titles.length;
29. for (int i = 0; i < length; i++) \{
30. XYSeries series = new XYSeries(titles\[i\], scale);// 这里注意与TimeSeries区别. 
31. double\[\] xV = xValues.get(i);
32. double\[\] yV = yValues.get(i);
33. int seriesLength = xV.length;
34. for (int k = 0; k < seriesLength; k++) \{
35. series.add(xV\[k\], yV\[k\]);
36. \}
37. dataset.addSeries(series);
38. \}
39. \}
40. 
41. /\*\* 
42.  \* Builds an XY multiple series renderer. 构建XYMultipleSeriesRenderer. 
43.  \* 
44.  \* @param colors 
45.  \* 每个序列的颜色 
46.  \* @param styles 
47.  \* 每个序列点的类型(可设置三角,圆点,菱形,方块等多种) 
48.  \* @return XYMultipleSeriesRenderer 
49.  \*/
50. protected XYMultipleSeriesRenderer buildRenderer(int\[\] colors, PointStyle\[\] styles) \{
51. XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
52. setRenderer(renderer, colors, styles);
53. return renderer;
54. \}
55. 
56. // 整个图表属性设置 
57. 
58. protected void setRenderer(XYMultipleSeriesRenderer renderer, int\[\] colors, PointStyle\[\] styles) \{
59. // -->start 
60. renderer.setAxisTitleTextSize(16);// 设置轴标题文字的大小 
61. renderer.setChartTitleTextSize(20); // 设置整个图表标题文字的大小 
62. renderer.setLabelsTextSize(15); // 设置轴刻度文字的大小 
63. renderer.setLegendTextSize(15);// 设置图例文字大小 
64. renderer.setPointSize(5f);// 设置点的大小(图上显示的点的大小和图例中点的大小都会被设置) 
65. renderer.setMargins(new int\[\] \{ 20, 30, 15, 20 \});// 设置图表的外边框(上/左/下/右) 
66. // -->end 
67. 
68. // 以下代码设置每个序列的颜色. 
69. // -->start 
70. int length = colors.length;
71. for (int i = 0; i < length; i++) \{
72. XYSeriesRenderer r = new XYSeriesRenderer();
73. r.setColor(colors\[i\]);// 设置颜色 
74. r.setPointStyle(styles\[i\]);
75. renderer.addSeriesRenderer(r);
76. \}
77. // -->end 
78. 
79. \}
80. 
81. /\*\* 
82.  \* 设置renderer的一些属性. 
83.  \* 
84.  \* @param renderer 
85.  \* 要设置的renderer 
86.  \* @param title 
87.  \* 图表标题 
88.  \* @param xTitle 
89.  \* X轴标题 
90.  \* @param yTitle 
91.  \* Y轴标题 
92.  \* @param xMin 
93.  \* X轴最小值 
94.  \* @param xMax 
95.  \* X轴最大值 
96.  \* @param yMin 
97.  \* Y轴最小值 
98.  \* @param yMax 
99.  \* Y轴最大值 
100.  \* @param axesColor 
101.  \* X轴颜色 
102.  \* @param labelsColor 
103.  \* Y轴颜色 
104.  \*/
105. 
106. protected void setChartSettings(XYMultipleSeriesRenderer renderer, String title, String xTitle, String yTitle, double xMin, double xMax, double yMin, double yMax, int axesColor, int labelsColor) \{
107. renderer.setChartTitle(title);
108. renderer.setXTitle(xTitle);
109. renderer.setYTitle(yTitle);
110. renderer.setXAxisMin(xMin);
111. renderer.setXAxisMax(xMax);
112. renderer.setYAxisMin(yMin);
113. renderer.setYAxisMax(yMax);
114. renderer.setAxesColor(axesColor);
115. renderer.setLabelsColor(labelsColor);
116. \}
117. 
118. /\*\* 
119.  \* 构建和时间有关的XYMultipleSeriesDataset,这个方法与buildDataset在参数上区别是需要List<Date\[\]>作参数 
120.  \* . 
121.  \* 
122.  \* @param titles 
123.  \* 序列图例 
124.  \* @param xValues 
125.  \* X轴值 
126.  \* @param yValues 
127.  \* Y轴值 
128.  \* @return XYMultipleSeriesDataset 
129.  \*/
130. 
131. protected XYMultipleSeriesDataset buildDateDataset(String\[\] titles, List<Date\[\]> xValues, List<double\[\]> yValues) \{
132. XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
133. int length = titles.length;
134. for (int i = 0; i < length; i++) \{
135. TimeSeries series = new TimeSeries(titles\[i\]);// 构建时间序列TimeSeries 
136. Date\[\] xV = xValues.get(i);
137. double\[\] yV = yValues.get(i);
138. int seriesLength = xV.length;
139. for (int k = 0; k < seriesLength; k++) \{
140. series.add(xV\[k\], yV\[k\]);
141. \}
142. dataset.addSeries(series);
143. \}
144. return dataset;
145. \}
146. 
147. /\*\* 
148.  \* 构建单个CategorySeries,可用于生成饼图,注意与buildMultipleCategoryDataset(构建圆环图)相区别. 
149.  \* 
150.  \* @param titles 
151.  \* the series titles 
152.  \* @param values 
153.  \* the values 
154.  \* @return the category series 
155.  \*/
156. protected CategorySeries buildCategoryDataset(String title, double\[\] values) \{
157. CategorySeries series = new CategorySeries(title);
158. int k = 0;
159. for (double value : values) \{
160. series.add("Project " \+ ++k, value);
161. \}
162. 
163. return series;
164. \}
165. 
166. /\*\* 
167.  \* 构建MultipleCategorySeries,可用于构建圆环图(每个环是一个序列) 
168.  \* 
169.  \* @param titles 
170.  \* the series titles 
171.  \* @param values 
172.  \* the values 
173.  \* @return the category series 
174.  \*/
175. protected MultipleCategorySeries buildMultipleCategoryDataset(String title, List<String\[\]> titles, List<double\[\]> values) \{
176. MultipleCategorySeries series = new MultipleCategorySeries(title);
177. int k = 0;
178. for (double\[\] value : values) \{
179. series.add(2007 \+ k + "", titles.get(k), value);
180. k++;
181. \}
182. return series;
183. \}
184. 
185. /\*\* 
186.  \* 构建DefaultRenderer. 
187.  \* 
188.  \* @param colors 
189.  \* 每个序列的颜色 
190.  \* @return DefaultRenderer 
191.  \*/
192. protected DefaultRenderer buildCategoryRenderer(int\[\] colors) \{
193. DefaultRenderer renderer = new DefaultRenderer();
194. renderer.setLabelsTextSize(15);
195. renderer.setLegendTextSize(15);
196. renderer.setMargins(new int\[\] \{ 20, 30, 15, 0 \});
197. for (int color : colors) \{
198. SimpleSeriesRenderer r = new SimpleSeriesRenderer();
199. r.setColor(color);
200. renderer.addSeriesRenderer(r);
201. \}
202. return renderer;
203. \}
204. 
205. /\*\* 
206.  \* 构建XYMultipleSeriesDataset,适用于柱状图. 
207.  \* 
208.  \* @param titles 
209.  \* 每中柱子序列的图列 
210.  \* @param values 
211.  \* 柱子的高度值 
212.  \* @return XYMultipleSeriesDataset 
213.  \*/
214. protected XYMultipleSeriesDataset buildBarDataset(String\[\] titles, List<double\[\]> values) \{
215. XYMultipleSeriesDataset dataset = new XYMultipleSeriesDataset();
216. int length = titles.length;
217. for (int i = 0; i < length; i++) \{
218. CategorySeries series = new CategorySeries(titles\[i\]);
219. double\[\] v = values.get(i);
220. int seriesLength = v.length;
221. for (int k = 0; k < seriesLength; k++) \{
222. series.add(v\[k\]);
223. \}
224. dataset.addSeries(series.toXYSeries());
225. \}
226. return dataset;
227. \}
228. 
229. /\*\* 
230.  \* 构建XYMultipleSeriesRenderer,适用于柱状图. 
231.  \* 
232.  \* @param colors 
233.  \* 每个序列的颜色 
234.  \* @return XYMultipleSeriesRenderer 
235.  \*/
236. protected XYMultipleSeriesRenderer buildBarRenderer(int\[\] colors) \{
237. XYMultipleSeriesRenderer renderer = new XYMultipleSeriesRenderer();
238. renderer.setAxisTitleTextSize(16);
239. renderer.setChartTitleTextSize(20);
240. renderer.setLabelsTextSize(15);
241. renderer.setLegendTextSize(15);
242. int length = colors.length;
243. for (int i = 0; i < length; i++) \{
244. SimpleSeriesRenderer r = new SimpleSeriesRenderer();
245. r.setColor(colors\[i\]);
246. renderer.addSeriesRenderer(r);
247. \}
248. return renderer;
249. \}
250. \}

[http_code.google.com_p_achartengine]: http://code.google.com/p/achartengine/
[f20643bc-7db9-353e-a8cd-5e0df199f34b.jpg]: http://dl.iteye.com/upload/attachment/0057/4447/f20643bc-7db9-353e-a8cd-5e0df199f34b.jpg
[e6c9907b-c0cf-3e17-84d6-f8e0ae703f3e.jpg]: http://dl.iteye.com/upload/attachment/0075/8384/e6c9907b-c0cf-3e17-84d6-f8e0ae703f3e.jpg
[3eeb6515-4b76-341d-9239-b778766c3f02.png]: http://dl.iteye.com/upload/attachment/0075/8386/3eeb6515-4b76-341d-9239-b778766c3f02.png
[http_blog.csdn.net_lk_blog_article_details_7645509]: http://blog.csdn.net/lk_blog/article/details/7645509
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[_icon_copy.gif]: http://316031139-qq-com.iteye.com/blog/1709024#
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