我想在我的 android 应用程序上创建一个条形图。
我需要 scrollView 上的图表。
我已经试过了GraphView和 AndroidPlot .
最佳答案
更新
GraphView 的新更新不支持这种方法
使用 GraphView:
我在下面做了一个函数,它接受三个数组作为参数。第一个采用 X 轴标签,下一个采用 Y 轴标签,最后一个采用要绘制的值。
代码
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 类:
此类与文档中给出的类略有不同。
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;
}
}
附言
将此方法称为:
String[] xAxis = {"RED","WHITE","BLUE","GREEN"};
String[] yAxis = {"GOOD", "AVEGRAGE", "BAD"};
String[] data = {"1", "2", "1","2"};
renderGraph(xAxis, yAxis, data);
关于android - 使用 Graphview 在 android 中绘制图形?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/26543739/