我想在Android中绘制一个图形,在X轴上我想要几个月,如Jan,Feb,March,Apr,May,Jun,Aug,Sep,Oct,Nov,Dec和Y轴,你需要多少钱在那个特定的月份消费。
我有一个代码在android上绘制图形: -
mySimpleXYPlot = (XYPlot) findViewById(R.id.mySimpleXYPlot);
Number[] series1Numbers = { 1, 8, 5, 2, 7, 4 };
Number[] series2Numbers = { 4, 6, 3, 8, 2, 10 };
XYSeries series1 = new SimpleXYSeries(Arrays.asList(series1Numbers),
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY,"Series1");
XYSeries series2 = new SimpleXYSeries(Arrays.asList(series2Numbers),
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Series2");
LineAndPointFormatter series1Format = new LineAndPointFormatter(
Color.rgb(0, 200, 0), // line color
Color.rgb(0, 100, 0), // point color
Color.rgb(150, 190, 150)); // fill color (optional)
mySimpleXYPlot.addSeries(series1, series1Format);
mySimpleXYPlot.addSeries(
series2,
new LineAndPointFormatter(Color.rgb(0, 0, 200),
Color.rgb(0, 0, 100), Color.rgb(150, 150, 190)));
mySimpleXYPlot.setTicksPerRangeLabel(3);
}
但是我希望X轴上的月份和Y轴上他们在那个月花费的特定金额。这些价值来自数据库,他们花费的时间是他们花费的所需月份和名称包含他们在那个月花费的价值。
try {
myDB = this.openOrCreateDatabase("Expense_db", MODE_PRIVATE, null);
Cursor c = myDB.rawQuery("SELECT project_android.Month AS Month_Real, " +
"SUM(Total) AS OrderTotal FROM project_android " +
"WHERE Year='"+value1+"' " +
"GROUP BY project_android.Month " , null);
int Column1 = c.getColumnIndex("Month_Real");
int Column2 = c.getColumnIndex("OrderTotal");
//int current=0;
// Check if our result was valid.
c.moveToFirst();
if (c != null) {
// Loop through all Results
do {
mon = c.getString(Column1);
Name = c.getDouble(Column2);
Log.i(TAG, "Testing_value_graph_month: " + Name + " | " + mon + " " );
}while(c.moveToNext());
c.close();
}
}
catch(Exception e) {
Log.e("Error", "Error", e);
} finally {
if (myDB != null)
myDB.close();
}
任何帮助将不胜感激..!