问题描述
这是我关于stackoverflow的第一个问题，请客气：）
我正在制作一个货币汇率桌面应用程序。每隔10秒，我就会使用API刷新表格视图。
我想对每个tableview行进行淡入淡出。当平均值大于前一个值时，该行将变为绿色。如果更少，它将为红色。示例在这里；
https://examples.ext.net/#/SignalR/Basic/StockTicker/
我看到了这一点，但无法解决如何实施我的项目； Fade Transition via custom cell factory in javafx
代码；
Currency.java
package model;
import javafx.beans.property.SimpleStringProperty;
public class Currency {
private SimpleStringProperty dovizKuru;
private SimpleStringProperty alis;
private SimpleStringProperty satis;
private SimpleStringProperty ortalama;
private SimpleStringProperty gunlukDegisim;
public Currency(SimpleStringProperty dovizKuru,SimpleStringProperty alis,SimpleStringProperty satis,SimpleStringProperty ortalama,SimpleStringProperty gunlukDegisim) {
super();
this.dovizKuru = dovizKuru;
this.alis = alis;
this.satis = satis;
this.ortalama = ortalama;
this.gunlukDegisim = gunlukDegisim;
}
public String getDovizKuru() {
return this.dovizKuru.get();
}
public void setDovizKuru(SimpleStringProperty dovizKuru) {
this.dovizKuru = dovizKuru;
}
public String getAlis() {
return this.alis.get();
}
public void setAlis(SimpleStringProperty alis) {
this.alis = alis;
}
public String getSatis() {
return this.satis.get();
}
public void setSatis(SimpleStringProperty satis) {
this.satis = satis;
}
public String getortalama() {
return this.ortalama.get();
}
public void setortalama(SimpleStringProperty ortalama) {
this.ortalama = ortalama;
}
public String getGunlukDegisim() {
return this.gunlukDegisim.get();
}
public void setGunlukDegisim(SimpleStringProperty gunlukDegisim) {
this.gunlukDegisim = gunlukDegisim;
}
}
Api服务
package services;
import java.net.HttpURLConnection;
import java.net.URL;
import org.json.JSONArray;
import org.json.JSONObject;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.concurrent.Service;
import javafx.concurrent.Task;
import model.Currency;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class CurrencyRateServices extends Service<ObservableList<Currency>> {
public ObservableList<Currency> apiResponse() throws IOException{
StringBuilder urlBuilder = new StringBuilder("https://api.yapikredi.com.tr/api/investmentrates/v1/currencyRates");
URL url = new URL(urlBuilder.toString());
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
//Bearer 9e6f33ac-ddfc-4a5d-b55d-155a0f3f0e69
conn.setRequestProperty("Authorization","TOKEN");
System.out.println("Response code: " + conn.getResponseCode());
BufferedReader rd;
if(conn.getResponseCode() >= 200 && conn.getResponseCode() <= 300) {
rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
} else {
rd = new BufferedReader(new InputStreamReader(conn.getErrorStream()));
}
StringBuilder sb = new StringBuilder();
String line;
while ((line = rd.readLine()) != null) {
sb.append(line);
}
rd.close();
conn.disconnect();
System.out.println(sb);
ObservableList<Currency> currList= FXCollections.observableArrayList();
JSONObject obj = new JSONObject(sb.toString());
JSONObject obj2=obj.getJSONObject("response");
JSONArray jsonArray=obj2.getJSONArray("exchangeRateList");
for (int i = 0; i < jsonArray.length(); i++) {
if (jsonArray.getJSONObject(i).getString("minorCurrency").equals("TL")) {
Currency currency = new Currency(
new SimpleStringProperty(jsonArray.getJSONObject(i).getString("majorCurrency") + "/"+ jsonArray.getJSONObject(i).getString("minorCurrency")),new SimpleStringProperty(jsonArray.getJSONObject(i).getString("buyRate")),new SimpleStringProperty(jsonArray.getJSONObject(i).getString("sellRate")),new SimpleStringProperty(jsonArray.getJSONObject(i).getString("averageRate")),new SimpleStringProperty(jsonArray.getJSONObject(i).getString("changeRatioDaily"))
);
currList.add(currency);
}
}
return currList;
}
@Override
protected Task<ObservableList<Currency>> createTask() {
// Todo Auto-generated method stub
return new Task<ObservableList<Currency>>() {
protected ObservableList<Currency> call() throws Exception{
return apiResponse();
}
};
}
}
MyController
package controller;
import java.io.IOException;
import java.net.URL;
import java.util.Iterator;
import java.util.ResourceBundle;
import application.DovizManager;
import javafx.animation.Animation;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.beans.property.SimpleStringProperty;
import javafx.collections.ObservableList;
import javafx.event.Event;
import javafx.event.EventHandler;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableRow;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.PropertyValueFactory;
import javafx.util.Duration;
import model.Currency;
import services.CurrencyRateServices;
import view.ViewFactory;
public class DovizMainController extends BaseController implements Initializable{
@FXML
private TableView<Currency> dovizTableView;
@FXML
private TableColumn<Currency,String> col_DovizKuru;
@FXML
private TableColumn<Currency,String> col_Alis;
@FXML
private TableColumn<Currency,String> col_Satis;
@FXML
private TableColumn<Currency,String> col_Ortalama;
@FXML
private TableColumn<Currency,String> col_GunlukDegisim;
private ObservableList<Currency> crList;
public DovizMainController(DovizManager dovizManager,ViewFactory viewFactory,String fxmlName) {
super(dovizManager,viewFactory,fxmlName);
}
@Override
public void initialize(URL arg0,ResourceBundle arg1) {
setUpFirstTableView();
setUpTableView();
// Todo Auto-generated method stub
}
public void setUpFirstTableView() {
//ObservableList<Currency> crList = null;
CurrencyRateServices crService=new CurrencyRateServices();
try {
crList=crService.apiResponse();
} catch (IOException e) {
// Todo Auto-generated catch block
e.printstacktrace();
}
dovizTableView.setItems(crList);
col_DovizKuru.setCellValueFactory(new PropertyValueFactory<Currency,String>("dovizKuru"));
col_Alis.setCellValueFactory(new PropertyValueFactory<Currency,String>("alis"));
col_Satis.setCellValueFactory(new PropertyValueFactory<Currency,String>("satis"));
col_Ortalama.setCellValueFactory(new PropertyValueFactory<Currency,String>("ortalama"));
col_GunlukDegisim.setCellValueFactory(new PropertyValueFactory<Currency,String>("gunlukDegisim"));
}
public void setUpTableView() {
Timeline timeline = new Timeline(new KeyFrame(Duration.millis(10000),new EventHandler() {
@Override
public void handle(Event arg0) {
// Todo Auto-generated method stub
CurrencyRateServices crService=new CurrencyRateServices();
crService.start();
crService.setonSucceeded(e->{
ObservableList<Currency> crListNew=crService.getValue();
for (int i = 0; i < crList.size(); i++) {
for (int j = 0; j < crListNew.size(); j++) {
if(crList.get(i).getDovizKuru().equals(crListNew.get(j).getDovizKuru())) {
System.out.println("başlıklar aynı");
if(crList.get(i).getortalama()!=crListNew.get(j).getortalama()) {
System.out.println("ortalamalar aynı");
if(Double.parseDouble(crList.get(i).getortalama())>Double.parseDouble(crListNew.get(j).getortalama())) {
crList.get(i).setAlis(new SimpleStringProperty(crListNew.get(j).getAlis()));
crList.get(i).setGunlukDegisim(new SimpleStringProperty(crListNew.get(j).getGunlukDegisim()));
crList.get(i).setortalama(new SimpleStringProperty(crListNew.get(j).getortalama()));
crList.get(i).setSatis(new SimpleStringProperty(crListNew.get(j).getSatis()));
dovizTableView.getItems().set(i,crList.get(i));
} else {
crList.get(i).setAlis(new SimpleStringProperty(crListNew.get(j).getAlis()));
crList.get(i).setGunlukDegisim(new SimpleStringProperty(crListNew.get(j).getGunlukDegisim()));
crList.get(i).setortalama(new SimpleStringProperty(crListNew.get(j).getortalama()));
crList.get(i).setSatis(new SimpleStringProperty(crListNew.get(j).getSatis()));
dovizTableView.getItems().set(i,crList.get(i));
}
}
}else {continue;}
}
}
});
}
}));
timeline.setCycleCount(Animation.INDEFINITE);
timeline.play();
}
}
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
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