我成功地用图表引擎显示图,但我从以下问题困扰:
- 我无法减少图表的大小。
- 图是在屏幕上移动,但我不希望出现这种情况。
- 我想显示在屏幕下方多了一个形象,但在此图表显示在屏幕中央。 我只是想在顶部和下面的图片中显示的图表(如何设置页边距)。
请任何人能帮助me.Thanks提前。
以下是我的代码:
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;
}
}