我是Android Developer特别是Graph的新手。现在我使用 AchartEngine 库创建以下图表,但我遇到以下问题:
Q-1。我想用固定宽度显示左侧标签,用省略号显示剩余内容。
Q-2 当我要将方向从纵向更改为横向时,图形显示如下第二个图像。如何为图表设置最佳布局。?
Q-3 如何在X轴上设置0 1 2 3 ... 10?
我为此图写了以下代码:
createLayoutMethod():
/ **用于创建图形布局** /
@SuppressWarnings("deprecation")
private void createGraphLayout() {
// TODO Auto-generated method stub
/** Initialixation for Graph */
/** objext of dataset which is put on Graph*/
dataset = new XYMultipleSeriesDataset();
series = new CategorySeries("Number of Customer");
renderer = new XYSeriesRenderer();
//renderer.setColor(Color.rgb(0, 168, 240));
mRenderer = new XYMultipleSeriesRenderer();
/** Setting for Renderer **/
mRenderer.setLabelsColor(Color.BLACK);
mRenderer.setBackgroundColor(Color.WHITE);
mRenderer.setOrientation(Orientation.VERTICAL);
mRenderer.setClickEnabled(true);
mRenderer.setLegendTextSize(15);
mRenderer.setLabelsTextSize(13);
mRenderer.setApplyBackgroundColor(true);
mRenderer.setMargins(new int[] {10,10,200,10});
mRenderer.setMarginsColor(Color.WHITE);
mRenderer.setInScroll(true);
mRenderer.setPanEnabled(true, false);
mRenderer.setScale(1);
mRenderer.setXLabelsAlign(Align.RIGHT); // alignment of label x
mRenderer.setXAxisMax(offer.length());
mRenderer.setYLabelsAlign(Align.CENTER); // alignment of label y
mRenderer.setXLabelsColor(Color.BLACK); // color of label x
mRenderer.setYLabelsColor(0, Color.BLACK); // color of label y
mRenderer.setLegendHeight(60);
mRenderer.setDisplayChartValues(true);
mRenderer.setYAxisMax(offer.length());
mRenderer.addSeriesRenderer(renderer);
}
putDataOnGraph():,用于放置在图表上的JSON数据:
private void putDataOnGraph() {
// TODO Auto-generated method stub
try {
for(int forOffer = 0; forOffer < offer.length(); forOffer++)
{
no_cust = 0;
for(int forCust = 0; forCust < customer.length(); forCust++)
{
if(offer.getJSONObject(forOffer).getInt("id") == customer.getJSONObject(forCust).getInt("offerId") && customer.getJSONObject(forCust).getInt("status") == 1)
no_cust = no_cust+1;
}
/** Check for x-axis maximum than customer **/
maxX = no_cust > maxX ? no_cust : maxX;
mRenderer.setXLabels(0);
mRenderer.addXTextLabel(forOffer+1,offer.getJSONObject(forOffer).getString("offerTitle"));
//Log.d("msg", ""+offer.getJSONObject(forOffer).getString("offerTitle") +" : "+no_cust);
//Log.d("msg", ""+maxX);
series.add(no_cust);
}
mRenderer.setYAxisMax(maxX);
dataset.addSeries(series.toXYSeries());
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
图形图像(纵向):
图形(风景)图像:
请给我建议如何解决这个问题...
提前致谢....
答案 0 :(得分:1)
对于Q1,您必须以像素为单位计算标签宽度,并且只添加适合您所需宽度的标签宽度。 AChartEngine不会为你做那件事。
答案 1 :(得分:1)
/** For creating lable, display 10 char if length is > 10 **/
// getting String from JSON
lable = offer.getJSONObject(forOffer).getString("offerTitle");
//if string length is grater than 10 then display only first 10 char
if(lable.length() > 10)
{
lable = lable.substring(0, 9);
}
mRenderer.addXTextLabel(forOffer+1,lable);
当用户点击
时,我在Toast中显示了全文