5
Tôi đã tạo biểu đồ từ cơ sở dữ liệu của tôi với androidplot, nhưng khi tôi đặt lại cơ sở dữ liệu bằng nút, cập nhật dosnt đồ thị, làm cách nào để cập nhật biểu đồ mà không tạo lại hoạt động?Làm thế nào để cập nhật biểu đồ trong androidplot
public class Overview extends Activity {
Number[] seriesOfNumbers;
private XYPlot mySimpleXYPlot;
// double totalprofitd;
private BetsDbAdapter dbHelper;
TextView NBtext;
TextView TOtext;
TextView TPtext;
TextView ROItext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.c_overview);
dbHelper = new BetsDbAdapter(this);
TOtext = (TextView) findViewById(R.id.turnover);
TPtext = (TextView) findViewById(R.id.totalprofit);
NBtext = (TextView) findViewById(R.id.numberOfBet);
ROItext = (TextView) findViewById(R.id.roi);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.android_tab_layout, menu);
return true;
}
public void resetClick(View v) {
dbHelper.open();
dbHelper.deleteDatabase();
dbHelper.close();
CalculateProfit();
graph();
}
@Override
protected void onResume() {
// TODO Auto-generated method stub
super.onResume();
CalculateProfit();
graph();
}
public void CalculateProfit() {
dbHelper.open();
List<String> tip = dbHelper.getTip();
List<String> betamount = dbHelper.getBetAmount();
ArrayList<String> sbodds = dbHelper.getSBodds();
dbHelper.close();
int NumberOfBets = tip.size();
double turnover = 0;
double ROI = 0;
double totalprofit = 0;
double profit = 0;
seriesOfNumbers = new Number[NumberOfBets];
for (int i = 0; i < NumberOfBets; i++) {
String WLV = tip.get(i);
String arrpct[] = WLV.split(" ", 2);
String WLV1 = arrpct[0];
if (WLV1.equals("W")) {
profit = Double.parseDouble(betamount.get(i).replaceAll(",",
"."))
* (Double.parseDouble(sbodds.get(i)) - 1);
}
else if (WLV1.equals("L")) {
profit = -Double.parseDouble(betamount.get(i).replaceAll(",",
"."));
} else {
profit = 0;
}
//Add total turnover
turnover += Double.parseDouble(betamount.get(i).replaceAll(",", "."));
//Add total profit
totalprofit += profit;
//For the graph
seriesOfNumbers[i] = totalprofit;
}
ROI = ((turnover + totalprofit)/turnover) * 100;
TPtext.setText(new DecimalFormat("##.##").format(totalprofit));
TOtext.setText(new DecimalFormat("##.##").format(turnover));
NBtext.setText(Integer.toString(NumberOfBets));
ROItext.setText(new DecimalFormat("##.##").format(ROI));
}
public void graph() {
dbHelper.open();
// initialize our XYPlot reference:
mySimpleXYPlot = (XYPlot) findViewById(R.id.mySimpleXYPlot);
// Turn the above arrays into XYSeries':
XYSeries series1 = new SimpleXYSeries(Arrays.asList(seriesOfNumbers),
// SimpleXYSeries takes a List so turn our array into a list
SimpleXYSeries.ArrayFormat.Y_VALS_ONLY,
// Y_VALS_ONLY means use the element index as the x value
"Series1"); // Set the display title of the series
// Create a formatter to use for drawing a series using
// LineAndPointRenderer:
LineAndPointFormatter series1Format = new LineAndPointFormatter(
Color.rgb(0, 200, 0), // line color
null, // point color
Color.rgb(0, 200, 0)); // fill color (none)
// add a new series' to the xyplot:
mySimpleXYPlot.addSeries(series1, series1Format);
// reduce the number of range labels
mySimpleXYPlot.setTicksPerRangeLabel(3);
// by default, AndroidPlot displays developer guides to aid in laying
// out your plot.
// To get rid of them call disableAllMarkup():
mySimpleXYPlot.disableAllMarkup();
dbHelper.close();
}
}
Dont biết nếu quan trọng của nó, nhưng đây là của tôi:
c_overview.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="@+id/Profit_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="6"
android:text="Profit:" />
<TextView
android:id="@+id/ROI_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="6"
android:text="ROI:" />
<TextView
android:id="@+id/Bet_Counter_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="6"
android:text="No. of Bets:" />
<TextView
android:id="@+id/Turnover_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="6"
android:text="Turnover:" />
</LinearLayout>
<LinearLayout
android:layout_width="130dp"
android:layout_height="wrap_content"
android:layout_weight="0.75"
android:orientation="vertical" >
<TextView
android:id="@+id/totalprofit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:text="total profit" />
<TextView
android:id="@+id/roi"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:text="Return Of Interest" />
<TextView
android:id="@+id/numberOfBet"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="number of bets" />
<TextView
android:id="@+id/turnover"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:text="Turnover" />
</LinearLayout>
<Button
android:id="@+id/reset"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1"
android:onClick="resetClick"
android:text="Reset" />
</LinearLayout>
<com.androidplot.xy.XYPlot
android:id="@+id/mySimpleXYPlot"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginTop="10px"
android:layout_marginLeft="10px"
android:layout_marginRight="10px"
title="A Simple XYPlot Example"/>
</LinearLayout>