FusionCharts报表在Android上的实现

 

FusionCharts报表在Android上的实现

分类： android开发 2014-07-18 12:41  84人阅读  评论(0)  收藏  举报

   前言：最近在做一个第三方App，涉及到Android图表显示，图表数据来自后台，需要联网动态获取后台数据，然后加载到报表中显示。Android这边报表方面的实现一直在考虑是否需要谷歌提供的第三方库achartengine来实现，但考虑到和IOS的一致问题。同时，achartengine实现的报表效果并不是那么美观。鉴于FusionCharts在IOS上实现的效果非常不错，决定尝试在android上实现和IOS使用相同的报表组件。

    一.什么是FusionCharts

   简单来说，FusionCharts是一个Flash的图表组件(同时也可以通过javascrit渲染实现)，可以用来制作数据动画图表，还有杠杠的跨平台性。

FusionCharts在Web上实现比较多，还有IOS上也经常用到，但是Android这边的实现，FusionCharts官网只字不提。汗...自己摸索了好一段时间。而且有一个问题，Android这边显示这个报表需要安装Adobe。这是因为Android的WebView组件不支持Flash播放，所以显示报表的时候需要安装Adobe player。这是个瓶颈。不过Android也可以用javaScrit渲染实现，但是会有细微的差异。Flash动画播放也会有一定的缺陷。不过，总体来说，还是可以接受。

FusionCharts的官网和源生组件下载地址：http://www.fusioncharts.com，http://www.fusioncharts.com/download/

二.Android上的实现。

 1.前期准备工作：

  链接到FusionCharts源生组件下载地址，下载相关的源生组件，包括有各种类型报表对应的js文件和swf(flash文件)。

  将需要用到的报表类型组件添加到android工程asset目录下(可在asset目录下再创建个子目录存放js或swf)。

  如下图截图，是本博文android工程中用到的报表组件。

     

     asset-js目录存放的是FusionCharts开发必备的一些js文件，asset-swf存放的是FusionCharts各种类型报表对应的flash文件。asset-data存放的是报表需要显示的静态数据，在xml中定义。这些是写死的数据，在实际开发中，需要动态传递报表数据。

  2.本博文实现的android demo效果如下截图(报表加载时会有动画效果) 

      -----3D柱状图---> 

      -----3D饼图--->   

  3.MainActivity代码如下：

 package com.eking.android.fusionchartsjs;

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import android.app.AlertDialog;
 import android.app.ListActivity;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.DialogInterface.OnClickListener;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.net.Uri;
 import android.os.Bundle;
 import android.view.View;
 import android.widget.ListView;
 import android.widget.SimpleAdapter;

 public class MainActivity extends ListActivity {

     private String[] mChartsName;
     private String[] mChartsSign;
     private Intent mIntent;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         initialize();
         setListAdapter(new SimpleAdapter(this, getListValues(), android.R.layout.simple_list_item_1,
                 new String[] { "name" }, new int[] { android.R.id.text1 }));
     }

     private void initialize() {
         mChartsName = new String[] { "折线图" , "面积图" , "2D柱状图" , "3D柱状图" , "2D饼图" , "3D饼图" , "多重数据堆积图" , "组合图" ,
                 "不同单位的多数据集组合图", "散点图", "气泡图", "网格图表", "中国地图"};
         mChartsSign = new String[] { "Line" , "Area2D" , "Column2D" , "Column3D" , "Pie2D" , "Pie3D" ,
                 "StackedColumn3D" , "MSCombi2D" , "MSColumn3DLineDY", "Scatter", "Bubble", "SSGrid", "FCMap_China2"};
         mIntent = new Intent(this, ChartsShowActivity.class);
     }

     private List<Map<String , String>> getListValues() {
         List<Map<String , String>> values = new ArrayList<Map<String , String>>();
         int length = mChartsName.length;
         for (int i = 0; i < length; i++) {
             Map<String , String> v = new HashMap<String , String>();
             v.put("name", mChartsName[i]);
             values.add(v);
         }
         return values;
     }

     @Override
     protected void onListItemClick(ListView l,View v,int position,long id) {
         super.onListItemClick(l, v, position, id);
         if (checkAdobe()) {
             mIntent.putExtra("chartsSign", mChartsSign[position]);
             startActivity(mIntent);
         } else {
             installAdobe();
         }
     }


     private boolean checkAdobe() {
          PackageManager pm = getPackageManager();
          List<PackageInfo> infoList = pm.getInstalledPackages(PackageManager.GET_SERVICES);
          for (PackageInfo info : infoList) {
              if ("com.adobe.flashplayer".equals(info.packageName)) {
                  return true;
              }
          }
          return false;
     }

     private void installAdobe() {

         new AlertDialog.Builder(this).setTitle(R.string.dialog_title).setPositiveButton("ok", new OnClickListener() {

             @Override
             public void onClick(DialogInterface dialog,int which) {

                 Intent intent = new Intent("android.intent.action.VIEW");
                 intent.setData(Uri.parse("market://details?id=com.adobe.flashplayer"));
                 startActivity(intent);
                 finish();

             }
         }).setNegativeButton("cancel", new OnClickListener() {

             @Override
             public void onClick(DialogInterface dialog,int which) {

             }
         }).show();

     }
 }

 4.ChartsShowActivity代码如下：

 package com.eking.android.fusionchartsjs;

 import java.io.StringWriter;
 import java.util.ArrayList;
 import java.util.List;

 import org.codehaus.jackson.JsonGenerator;
 import org.codehaus.jackson.map.ObjectMapper;

 import android.app.Activity;
 import android.content.Intent;
 import android.os.Bundle;
 import android.util.Log;
 import android.webkit.WebSettings;
 import android.webkit.WebView;

 import com.eking.android.fusionchartsjs.bean.ChartsDataEntity;
 import com.eking.android.fusionchartsjs.bean.ChartsEntity;
 import com.eking.android.fusionchartsjs.bean.DataSetEntity;

 public class ChartsShowActivity extends Activity {

     private WebView mWebView;
     private String mFlashType;
     private String mChartData;
     private String mJsonString;

     private ChartsDataEntity mChartsDataEntity;
     private List<DataSetEntity> mDataSets;

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.layout_show_charts);
         Intent intent = getIntent();
         String sign = intent.getStringExtra("chartsSign");
         initialize();
         loadCharts(sign);
     }

     private void initialize() {

         mWebView = (WebView) findViewById(R.id.webview);
         mWebView.getSettings().setJavaScriptEnabled(true);
         mWebView.getSettings().setPluginState(WebSettings.PluginState.ON);
         mWebView.setHorizontalScrollbarOverlay(true);
         mWebView.setVerticalScrollbarOverlay(true);
         // 设置是否支持缩放(手指伸缩操作)
         mWebView.getSettings().setBuiltInZoomControls(true);
         // 设置是否显示网络图像
         mWebView.getSettings().setBlockNetworkImage(true);
         // 设置是否启用或禁止WebView访问文件数据
         mWebView.getSettings().setAllowFileAccess(true);
         // 设置默认文本编码格式
         mWebView.getSettings().setDefaultTextEncodingName("UTF-8");
         // mWebView.loadUrl("file:///android_asset/demo.html");

         //初始化Json格式的表数据
         /*mJson = "{\"chart\":{\"caption\":\"Monthly Sales Summary\", \"subcaption\":\"For the year 2014\"," +
                 "\"xaxisname\":\"Month\", \"yaxisname\":\"Sales\", \"numberprefix\":\"$\"}," +
                 " \"data\":[{ \"label\":\"January\",\"value\":\"17400\"}, { \"label\":\"February\",\"value\":\"19800\" }," +
                 "{ \"label\":\"March\",\"value\":\"21800\"}, { \"label\":\"April\",\"value\":\"23800\" }," +
                 "{\"label\":\"May\",\"value\":\"29600\"}, { \"label\":\"June\",\"value\":\"27600\" }," +
                 " {\"label\":\"July\",\"value\":\"31800\"}, {\"label\":\"August\",\"value\":\"39700\"}," +
                 "{\"label\":\"September\",\"value\":\"37800\"}, {\"label\":\"October\",\"value\":\"21900\"}," +
                 "{\"label\":\"November\",\"value\":\"32900\" }, {\"label\":\"December\",\"value\":\"39800\"}]}";
 */
         //定义Json格式的数据
         mJsonString = "{\"chart\":{\"caption\":\"2014季度销售报表汇总\", \"subcaption\":\"2014季度\", " +
                 "\"xaxisname\":\"销售月份\", \"yaxisname\":\"销售额度\", \"numberprefix\":\"$\"}," +
                 " \"data\":[{ \"label\":\"一月\",\"value\":\"17400\"}, { \"label\":\"二月\",\"value\":\"19800\" }," +
                 "{ \"label\":\"三月\",\"value\":\"21800\"}, { \"label\":\"四月\",\"value\":\"23800\" }," +
                 "{\"label\":\"五月\",\"value\":\"29600\"}, { \"label\":\"六月\",\"value\":\"27600\" }," +
                 " {\"label\":\"七月\",\"value\":\"31800\"}, {\"label\":\"八月\",\"value\":\"39700\"}," +
                 "{\"label\":\"九月\",\"value\":\"37800\"}, {\"label\":\"十月\",\"value\":\"21900\"}," +
                 "{\"label\":\"十一月\",\"value\":\"32900\" }, {\"label\":\"十二月\",\"value\":\"39800\"}]}";

     }

     /*根据图表的Json格式创建对应的对象，
      * 对对象赋值，然后再将对象转化Json格式数字
      */
     private String getJsonFromBean() {

         mChartsDataEntity = new ChartsDataEntity();
         mDataSets =  new ArrayList<DataSetEntity>();

         //ChartsEntity对象定义了图表属性
         ChartsEntity chart = new ChartsEntity();
         chart.setCaption("2014季度销售报表汇总");
         chart.setSubcaption("2014季度");
         chart.setXaxisname("销售月份");
         chart.setYaxisname("销售额度");
         chart.setNumberprefix("$");

         mChartsDataEntity.setChart(chart);

         initDataSet("一月", "17400");
         initDataSet("二月", "19800");
         initDataSet("三月", "21800");
         initDataSet("四月", "23800");
         initDataSet("五月", "29600");
         initDataSet("六月", "27600");
         initDataSet("七月", "31800");
         initDataSet("八月", "39700");
         initDataSet("九月", "37800");
         initDataSet("十月", "21900");
         initDataSet("十一月", "32900");
         initDataSet("十二月", "39800");
         initDataSet("一月", "17400");

         ObjectMapper objectMapper = new ObjectMapper();
         try {
             StringWriter sw = new StringWriter();
             JsonGenerator jsonGenerator = objectMapper.getJsonFactory().createJsonGenerator(sw);
             //objectMapper.writeValue(jsonGenerator, mChartsDataEntity);
             jsonGenerator.writeObject(mChartsDataEntity);
             jsonGenerator.close();
             String json = sw.toString();
             Log.d("TAG1", "json-->" + json);
             return json;
         } catch (Exception e) {
             // TODO: handle exception
             e.printStackTrace();
         }
         return null;
     }

     private void initDataSet(String month, String sale) {
         //DataSetEntity对象定义了图表的一组数据
         DataSetEntity dataSet = new DataSetEntity();
         dataSet.setLabel(month);
         dataSet.setValue(sale);
         mDataSets.add(dataSet);
         mChartsDataEntity.setData(mDataSets);
     }

     //加载显示图表
     private void loadCharts(String sign) {
         if (sign.endsWith("Line")) {
             mFlashType = "swf/Line.swf";
             mChartData = "data/sale_data.xml";
         } else if (sign.equals("Area2D")) {
             //以Json格式传图表数据
             mFlashType = "swf/Area2D.swf";
             mChartData = getJsonFromBean();
             mWebView.loadDataWithBaseURL("file:///android_asset/", getStringForHtmlByJson(mFlashType, mChartData), "text/html",
                     "utf-8", null);
             return;

         } else if (sign.equals("Column2D")) {
             mFlashType = "swf/Column2D.swf";
             mChartData = "data/Column2DData.xml";
         } else if (sign.equals("Column3D")) {
             //以Json格式传图表数据
             mFlashType = "swf/Column3D.swf";
             mChartData = mJsonString;
             mWebView.loadDataWithBaseURL("file:///android_asset/", getStringForHtmlByJson(mFlashType, mChartData), "text/html",
                     "utf-8", null);
             return;

         } else if (sign.equals("Pie2D")) {
             mFlashType = "swf/Pie2D.swf";
             mChartData = "data/sale_data.xml";
         } else if (sign.equals("Pie3D")) {
             mFlashType = "swf/Pie3D.swf";
             mChartData = "data/sale_data.xml";
         } else if (sign.equals("StackedColumn3D")) {
             mFlashType = "swf/StackedColumn3D.swf";
             mChartData = "data/sale_data_StackedColumn3D.xml";
         } else if (sign.equals("MSCombi2D")) {
             mFlashType = "swf/MSCombi2D.swf";
             mChartData = "data/sale_data_MSCombi2D.xml";
         } else if (sign.equals("MSColumn3DLineDY")) {
             mFlashType = "swf/MSColumn3DLineDY.swf";
             mChartData = "data/sale_data_MSColumn3DLineDY.xml";
         } else if (sign.equals("Scatter")) {
             mFlashType = "swf/Scatter.swf";
             mChartData = "data/ScatterData.xml";
         } else if (sign.equals("Bubble")) {
             mFlashType = "swf/Bubble.swf";
             mChartData = "data/BubbleData.xml";
         } else if (sign.equals("SSGrid")) {
             mFlashType = "swf/SSGrid.swf";
             mChartData = "data/sale_data.xml";
         } else if (sign.equals("FCMap_China2")) {
             mFlashType = "swf/FCMap_China2.swf";
             mChartData = "data/MapData.xml";
         }

         /*由于FusionCharts.js和flash资源均在资源目录asset下，所以第一个参数需要添加该路径。
          * 否则资源将无法加载显示
          */
         mWebView.loadDataWithBaseURL("file:///android_asset/", getStringForHtml(mFlashType, mChartData), "text/html",
                 "utf-8", null);
     }

     /**
      * 报表数据静态定义在XML文件中，载入组件中显示。
      * @param flashType 报表组件类型
      * @param chartData  xml文件路径
      * @return  拼接的html文件代码
      */
     private String getStringForHtml(String flashType,String chartData) {
         String summary = "<html>" + "<head>" + "<title>My First chart using FusionCharts XT - Using JavaScript</title>"
                 + "<script type=\"text/javascript\" src=\"js/FusionCharts.js\"></script>" + "</head>" + "<body>"
                 + "<div id=\"chartContainer\">FusionCharts XT will load here!</div>"
                 + "<script type=\"text/javascript\">" + "var myChart = new FusionCharts( '" + flashType
                 + "',\"myChartId\", \"300\",\"400\", \"0\", \"1\" );" + "myChart.setXMLUrl('" + chartData + "');"
                 + "myChart.render(\"chartContainer\");" + "</script>" + "</body>" + "</html>";
         return summary;
     }

     /**
      * 传递Json格式数据，作为报表显示数据。实现后台获取动态数据在报表中显示。
      * @param flashType 报表组件类型
      * @param chartData  报表显示数据
      * @return  拼接的html文件代码
      */
     private String getStringForHtmlByJson(String flashType,String chartData) {
         String summary = "<html>" + "<head>" + "<title>My First chart using FusionCharts XT - Using JavaScript</title>"
                 + "<script type=\"text/javascript\" src=\"js/FusionCharts.js\"></script>" + "</head>" + "<body>"
                 + "<div id=\"chartContainer\">FusionCharts XT will load here!</div>"
                 + "<script type=\"text/javascript\">" + "var myChart = new FusionCharts( '" + flashType
                 + "',\"myChartId\", \"300\",\"400\", \"0\", \"1\" );" + "myChart.setJSONData('" + chartData + "');"
                 + "myChart.render(\"chartContainer\");" + "</script>" + "</body>" + "</html>";
         return summary;
     }
 }

  5.ChartsShowActivity的布局文件layout_show_charts代码如下：

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
      >

     <WebView
         android:id="@+id/webview"
         android:layout_width="fill_parent"
         android:layout_height="fill_parent"
          />

 </LinearLayout>

  到此，FusionCharts在android上的实现介绍就结束了，demo下载地址链接如下：
     http://download.csdn.net/detail/stevenhu_223/7649001