【移動(dòng)應(yīng)用開發(fā)技術(shù)】android中怎么利用achartengine繪制柱狀圖

【移動(dòng)應(yīng)用開發(fā)技術(shù)】android中怎么利用achartengine繪制柱狀圖

1.下載achartengine庫(kù)

2.GraphicalView

graphicalView；

graphicalView=ChartFactory.getBarChartView(getBaseContext(),

dataset,

renderer,

type);//柱狀圖

graphicalView=ChartFactory.getPieChartView(getBaseContext(),

dataset,

renderer);//餅狀圖

注解：dataset表示數(shù)據(jù)源，renderer表示渲染參數(shù)，type表示類型

3.設(shè)置dataset數(shù)據(jù)源

String[]

titles={"test"};

List<double[]>

values=new

ArrayList<double[]>();

values.add(new

double[]{5120.0,21251.0,25610.0});

XYMultipleSeriesDataset

dataset=buildBarDataset(titles,

values);

protected

XYMultipleSeriesDataset

buildBarDataset(String[]

titles,

List<double[]>

values)

{

XYMultipleSeriesDataset

dataset

=

new

XYMultipleSeriesDataset();

int

length

=

titles.length;

for

(int

i

=

0;

i

<

length;

i++)

{

CategorySeries

series

=

new

CategorySeries(titles[i]);

double[]

v

=

values.get(i);

int

seriesLength

=

v.length;

for

(int

k

=

0;

k

<

seriesLength;

k++)

{

series.add(v[k]);

}

dataset.addSeries(series.toXYSeries());

}

return

dataset;

}protected

XYMultipleSeriesRenderer

buildBarRenderer(int[]

colors)

{

XYMultipleSeriesRenderer

renderer

=

new

XYMultipleSeriesRenderer();

renderer.setAxisTitleTextSize(16);

renderer.setChartTitleTextSize(20);

renderer.setLabelsTextSize(15);

renderer.setLegendTextSize(15);

int

length

=

colors.length;

for

(int

i

=

0;

i

<

length;

i++)

{

SimpleSeriesRenderer

r

=

new

SimpleSeriesRenderer();

r.setColor(colors[i]);

renderer.addSeriesRenderer(r);

}

return

renderer;

}private

void

setChartSettings(XYMultipleSeriesRenderer

renderer,

String

title,

String

xlable,

String

ylable,

int

xmin,

int

xmax,

int

ymin,

int

ymax)

{

renderer.setChartTitle(title);

renderer.setXTitle(xlable);

renderer.setYTitle(ylable);

renderer.setXAxisMin(xmin);

renderer.setXAxisMax(xmax);

renderer.setYAxisMin(ymin);

renderer.setYAxisMax(ymax);

}layout=(LinearLayout)findViewById(R.id.linearlayout);

layout.removeAllViews();

layout.setBackgroundC