[英]Draw Graph in android using Graphview?
UPDATE
GraphView的新更新不支持此方法
使用GraphView:
我在下面創建了一個函數,它將三個數組作為參數。 第一個采用X軸標簽,接下來采用Y軸標簽,最后采用值繪制。
碼
private void renderGraph(String[] xAxis, String[] yAxis, float[] data) {
GraphViewData[] data = new GraphViewData[xAxis.length];//this class is defined below
double v = 1, w = 1;
int num = xAxis.length;
for (int j = 0; j < num; j++) {
v = data[j];
data[j] = new GraphViewData(j, v);
}
GraphViewSeries example1 = new GraphViewSeries(data);
GraphView graphView = new BarGraphView(this, "GRAPH TITLE");
graphView.setVerticalLabels(yAxis);
graphView.setHorizontalLabels(xAxis);
graphView.addSeries(example1);
example1.getStyle().color = Color.BLUE;
graphView.setScalable(true);
graphView.getGraphViewStyle().setTextSize(18);
graphView.setScrollable(false);
graphView.getGraphViewStyle().setGridColor(Color.DKGRAY);
graphView.getGraphViewStyle().setGridStyle(GridStyle.VERTICAL);
graphView.getGraphViewStyle().setNumHorizontalLabels(5);
LinearLayout layout = (LinearLayout) findViewById(R.id.graphz);//graphz is defined in layout
layout.addView(graphView);
}
GraphViewData類:
這個類與文檔中給出的類略有不同。
public class GraphViewData implements GraphViewDataInterface {
private double x, y;
public GraphViewData(double x, double y) {
super();
this.x = x;
this.y = y;
}
@Override
public double getX() {
// TODO Auto-generated method stub
return this.x;
}
@Override
public double getY() {
// TODO Auto-generated method stub
return this.y;
}
}
PS
將此方法稱為:
String[] xAxis = {"RED","WHITE","BLUE","GREEN"};
String[] yAxis = {"GOOD", "AVEGRAGE", "BAD"};
String[] data = {"1", "2", "1","2"};
renderGraph(xAxis, yAxis, data);
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