如何在Android中绘制饼图

概述我想在我的 Android应用程序中绘制一个饼图. 你能建议我一个简单的方法吗？ 我为此写了一个视图类,但不令人满意.所以,如果你告诉我一个好的和高性能的图表库,我将不胜感激. 从下载jar http://www.achartengine.org/content/download.html 将jar添加到项目lib文件夹.还有开发人员提供的示例.您可以根据需要检查并修改相同的内容. 还有一个演示@ 我想在我的 Android应用程序中绘制一个饼图.
你能建议我一个简单的方法吗？
我为此写了一个视图类,但不令人满意.所以,如果你告诉我一个好的和高性能的图表库,我将不胜感激.解决方法 从下载jar

http://www.achartengine.org/content/download.html

将jar添加到项目lib文件夹.还有开发人员提供的示例.您可以根据需要检查并修改相同的内容.

还有一个演示@

http://www.achartengine.org/content/demo.html

文件

http://www.achartengine.org/content/javadoc/org/achartengine/chart/PieChart.html

例：

<linearLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    androID:layout_wIDth="fill_parent"    androID:layout_height="fill_parent"    androID:orIEntation="vertical" >    <linearLayout        androID:ID="@+ID/chart"        androID:layout_wIDth="fill_parent"        androID:layout_height="wrap_content"        androID:layout_weight="1"        androID:orIEntation="horizontal" >    </linearLayout></linearLayout>

活动类

public class AChartEnginePIEChartActivity extends Activity {     private static int[] colorS = new int[] { color.GREEN,color.BLUE,color.magenta,color.CYAN };    private static double[] VALUES = new double[] { 10,11,12,13 };    private static String[] name_List = new String[] { "A","B","C","D" };    private categorySerIEs mSerIEs = new categorySerIEs("");    private DefaultRenderer mRenderer = new DefaultRenderer();    private GraphicalVIEw mChartVIEw;    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.main);        mRenderer.setApplyBackgroundcolor(true);        mRenderer.setBackgroundcolor(color.argb(100,50,50));        mRenderer.setChartTitleTextSize(20);        mRenderer.setLabelsTextSize(15);        mRenderer.setLegendTextSize(15);        mRenderer.setmargins(new int[] { 20,30,15,0 });        mRenderer.setZoom@R_301_5554@sVisible(true);        mRenderer.setStartAngle(90);        for (int i = 0; i < VALUES.length; i++) {            mSerIEs.add(name_List[i] + " " + VALUES[i],VALUES[i]);            SimpleSerIEsRenderer renderer = new SimpleSerIEsRenderer();            renderer.setcolor(colorS[(mSerIEs.getItemCount() - 1) % colorS.length]);            mRenderer.addSerIEsRenderer(renderer);        }        if (mChartVIEw != null) {            mChartVIEw.repaint();        }    }    @OverrIDe    protected voID onResume() {        super.onResume();        if (mChartVIEw == null) {            linearLayout layout = (linearLayout) findVIEwByID(R.ID.chart);            mChartVIEw = ChartFactory.getPIEChartVIEw(this,mSerIEs,mRenderer);            mRenderer.setClickEnabled(true);            mRenderer.setSelectableBuffer(10);            mChartVIEw.setonClickListener(new VIEw.OnClickListener() {                @OverrIDe                public voID onClick(VIEw v) {                    SerIEsSelection serIEsSelection = mChartVIEw.getCurrentSerIEsAndPoint();                    if (serIEsSelection == null) {                        Toast.makeText(AChartEnginePIEChartActivity.this,"No chart element was clicked",Toast.LENGTH_SHORT).show();                    }                    else {                        Toast.makeText(AChartEnginePIEChartActivity.this,"Chart element data point index "+ (serIEsSelection.getPointIndex()+1) + " was clicked" + " point value="+ serIEsSelection.getValue(),Toast.LENGTH_SHORT).show();                    }                }            });            mChartVIEw.setonLongClickListener(new VIEw.OnLongClickListener() {                @OverrIDe                public boolean onLongClick(VIEw v) {                    SerIEsSelection serIEsSelection = mChartVIEw.getCurrentSerIEsAndPoint();                    if (serIEsSelection == null) {                        Toast.makeText(AChartEnginePIEChartActivity.this,"No chart element was long pressed",Toast.LENGTH_SHORT);                        return false;                     }                    else {                        Toast.makeText(AChartEnginePIEChartActivity.this,"Chart element data point index "+ serIEsSelection.getPointIndex()+ " was long pressed",Toast.LENGTH_SHORT);                        return true;                           }                }            });            layout.addVIEw(mChartVIEw,new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));        }        else {        mChartVIEw.repaint();        }    }}

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