有没有人能够根据x和y轴上的数据在Android中绘制条形图？
4个回答
2
public class BarchartsampleActivity extends Activity {
/** Called when the activity is first created. */
static XYMultipleSeriesDataset dataset;
static XYMultipleSeriesRenderer renderer;
static XYSeriesRenderer rendererSeries;
static CategorySeries series;
static GraphicalView mChartView;
String xvalstring1,xvalstring2,xvalstring3,xvalstring4,xvalstring5;
int xvalint1,xvalint2,xvalint3,xvalint4,xvalint5;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
LinearLayout layout = (LinearLayout) findViewById(R.id.linearlayout);
Intent intent=getIntent();
xvalstring1=intent.getStringExtra("xvalstring1").toString().trim();
xvalstring2=intent.getStringExtra("xvalstring2").toString().trim();
xvalstring3=intent.getStringExtra("xvalstring3").toString().trim();
xvalstring4=intent.getStringExtra("xvalstring4").toString().trim();
xvalstring5=intent.getStringExtra("xvalstring5").toString().trim();
xvalint1=Integer.parseInt(xvalstring1);
xvalint2=Integer.parseInt(xvalstring2);
xvalint3=Integer.parseInt(xvalstring3);
xvalint4=Integer.parseInt(xvalstring4);
xvalint5=Integer.parseInt(xvalstring5);
String[] titles = new String[] { "USER INPUTS" };
List<double[]> x = new ArrayList<double[]>();
x.add(new double[] { 1, 2, 3, 4, 5});
List<double[]> values = new ArrayList<double[]>();
values
.add(new double[] { xvalint1,xvalint2,xvalint3,xvalint4,xvalint5 });
dataset = new XYMultipleSeriesDataset();
renderer = new XYMultipleSeriesRenderer();
renderer.setChartTitle("USER INPUTS");
renderer.setXTitle("X");
renderer.setYTitle("Y");
renderer.setXLabelsAlign(Align.RIGHT);
renderer.setYLabelsAlign(Align.RIGHT);
renderer.setXAxisMin(0);
renderer.setXAxisMax(10);
renderer.setYAxisMin(0);
renderer.setYAxisMax(40);
renderer.setClickEnabled(false);
renderer.setExternalZoomEnabled(false);
renderer.setZoomButtonsVisible(true);
renderer.setPanLimits(new double[] { 0,5,0,100 });
renderer.setZoomLimits(new double[] { -10, 20, -10, 40 });
renderer.setShowGrid(true);
/*renderer.setPanEnabled(false, false);
renderer.setZoomEnabled(false, false);*/
renderer.setBarSpacing(1.5);
renderer.setLabelsColor(Color.BLUE);
renderer.setAxisTitleTextSize(16);
renderer.setChartTitleTextSize(20);
renderer.setLabelsTextSize(15);
renderer.setLegendTextSize(15);
renderer.setMargins(new int[] {20, 30, 15, 20});
renderer.setBackgroundColor(Color.GREEN);
renderer.setMarginsColor(Color.GREEN);
rendererSeries = new XYSeriesRenderer();
rendererSeries.setColor(Color.GREEN);
rendererSeries.setDisplayChartValues(true);
renderer.addSeriesRenderer(rendererSeries);
if (mChartView == null) {
Log.d("Oncreate ", "if (mChartView == null)");
mChartView = ChartFactory.getBarChartView(this, mDataset(titles,
x, values), renderer, Type.DEFAULT);
layout.addView(mChartView, new LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
} else {
// mChartView.repaint();
Log.d("Oncreate ", "if (mChartView != null)");
}
}
private XYMultipleSeriesDataset mDataset(String[] titles,
List<double[]> xValues, List<double[]> yValues) {
// TODO Auto-generated method stub
XYMultipleSeriesDataset dataset1 = new XYMultipleSeriesDataset();
addXYSeries(dataset1, titles, xValues, yValues, 0);
return dataset1;
}
private void addXYSeries(XYMultipleSeriesDataset dataset, String[] titles,
List<double[]> xValues, List<double[]> yValues, int scale) {
// TODO Auto-generated method stub
int length = titles.length;
for (int i = 0; i < length; i++) {
XYSeries series = new XYSeries(titles[i], scale);
double[] xV = xValues.get(i);
double[] yV = yValues.get(i);
int seriesLength = xV.length;
for (int k = 0; k < seriesLength; k++) {
series.add(xV[k], yV[k]);
}
dataset.addSeries(series);
}
}
}
- gaddam nagaraju
1
4一些解释可能有助于帮助人们理解这段代码。 - SeanC
网页内容由stack overflow 提供, 点击上面的可以查看英文原文，
原文链接
原文链接