自定义饼图显示使用ChartEngine [英] customizing Piechart displayed by using ChartEngine

问题描述

我成功地用图表引擎显示的图表，但我患了如下问题：

1. 我无法减少图表的大小。
2. 图是在屏幕上移动，但我不希望出现这种情况。
3. 我想显示在屏幕的底部多一个图像，但这里图表显示在屏幕的中间。我只是想在上面和下面的图片显示的图表（如何设置页边距）。

请任何一个可以帮助提前me.Thanks。

以下是我的code：

 公共类MainActivity延伸活动{

私有String [] mMonth =新的String [] {
            简，月，月，月，月，君，
            七月，月，月，月，月，月
        };

@覆盖
公共无效的onCreate（包savedInstanceState）{
    super.onCreate（savedInstanceState）;


    openChart（）;


}

私人无效openChart（）{

    双[]分布= {10,200,3,400,500,60};
    串[] DIS = {10，200，13，400，500，60};
    //颜色每个饼图节
    INT []颜色= {Color.BLUE，Color.MAGENTA，Color.GREEN，Color.CYAN，Color.RED，
                     Color.YELLOW};

    //实例化CategorySeries绘制饼图
    CategorySeries distributionSeries =新CategorySeries（样本）;
    的for（int i = 0; I＆LT; distribution.length;我++）{
        //添加具有它的价值和命名切片饼图
        distributionSeries.add（DIS [I]中，分配[I]）;

    }

    //实例化渲染饼图
    DefaultRenderer defaultRenderer =新DefaultRenderer（）;
    的for（int i = 0; I＆LT; distribution.length;我++）{
        SimpleSeriesRenderer seriesRenderer =新SimpleSeriesRenderer（）;
        seriesRenderer.setColor（颜色[I]）;
        seriesRenderer.setDisplayChartValues​​（真正的）;

        //添加渲染器片
        defaultRenderer.setShowLegend（假）;
        defaultRenderer.addSeriesRenderer（seriesRenderer）;
        INT月[] = defaultRenderer.getMargins（）;
        的System.out.println（MAR）;
    }

    //创建一个意图情节线图使用的数据集和multipleRenderer
    意向意图= ChartFactory.getPieChartIntent（getBaseContext（），distributionSeries，defaultRenderer，）;

    //开始活动
    startActivity（意向）;

}

@覆盖
公共布尔onCreateOptionsMenu（功能菜单）{
    。getMenuInflater（）膨胀（R.menu.activity_main，菜单）;
    返回true;
}
}
 

解决方案

您可以通过设置页边距：

  defaultRenderer.setMargins（利润）;
 

您可以禁用平移是这样的：

  defaultRenderer.setPanEnabled（假的，假的）;
 

您可以创建一个图表中的观点，并将其嵌入您定义的布局一个活动里面，见<一href="http://stackoverflow.com/questions/4062161/android-i-am-using-achartengine-library-for-graphs-but-not-able-to-integrate-a/4079692#4079692">this.

I am successfully displaying charts by using Chart Engine but I am suffering from below problems:

1. I am unable to reduce the Chart Size.
2. Chart is moving on the screen but I don't want that.
3. I want to display one more image in the bottom of the screen but here chart is displayed in the middle of the screen. I just want to display chart at the top and below image(How to set margins).

Please any one can help me.Thanks in advance.

Following is my code:

public class MainActivity extends Activity {    

private String[] mMonth = new String[] {
            "Jan", "Feb" , "Mar", "Apr", "May", "Jun",
            "Jul", "Aug" , "Sep", "Oct", "Nov", "Dec"
        };

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);


    openChart();                        


}

private void openChart(){       

    double[] distribution = { 10,200,3,400,500,60} ;
    String[] dis = { "10","200","13","400","500","60"} ;
    // Color of each Pie Chart Sections
    int[] colors = { Color.BLUE, Color.MAGENTA, Color.GREEN, Color.CYAN, Color.RED,
                     Color.YELLOW };

    // Instantiating CategorySeries to plot Pie Chart       
    CategorySeries distributionSeries = new CategorySeries("Sample");
    for(int i=0 ;i < distribution.length;i++){
        // Adding a slice with its values and name to the Pie Chart
        distributionSeries.add(dis[i],distribution[i]);

    }   

    // Instantiating a renderer for the Pie Chart
    DefaultRenderer defaultRenderer  = new DefaultRenderer();       
    for(int i = 0 ;i<distribution.length;i++){          
        SimpleSeriesRenderer seriesRenderer = new SimpleSeriesRenderer();       
        seriesRenderer.setColor(colors[i]);
        seriesRenderer.setDisplayChartValues(true);

        // Adding a renderer for a slice
        defaultRenderer.setShowLegend(false);
        defaultRenderer.addSeriesRenderer(seriesRenderer);
        int mar[]=defaultRenderer.getMargins();
        System.out.println(mar);
    }

    // Creating an intent to plot bar chart using dataset and multipleRenderer      
    Intent intent = ChartFactory.getPieChartIntent(getBaseContext(), distributionSeries , defaultRenderer, "");     

    // Start Activity
    startActivity(intent);

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.activity_main, menu);
    return true;
}
}

解决方案

You can set the margins by using:

defaultRenderer.setMargins(margins);

You can disable panning this way:

defaultRenderer.setPanEnabled(false, false);

You can create a chart in a view and embed it inside an activity that you define the layout for, see this.

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