我们的手表应用是我们iOS应用的伴侣，因此当您在iOS应用上打开特定屏幕时，它会将数据发送到手表应用。为此我使用import javafx.application.Application;
import javafx.application.Platform;
import javafx.collections.FXCollections;
import javafx.scene.Scene;
import javafx.scene.chart.LineChart;
import javafx.scene.chart.NumberAxis;
import javafx.scene.chart.XYChart;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import java.util.ArrayList;
import java.util.List;
/**
* Demonstrates how to draw layers of XYCharts.
* https://forums.oracle.com/forums/thread.jspa?threadID=2435995 "Using StackPane to layer more different type charts"
*/
public class LayeredXyChartsSample extends Application {
private XYChart.Series<Number, Number> lineSeries1;
private XYChart.Series<Number, Number> lineSeries2;
private List<NumberAxis> xAxes = new ArrayList<>();
private NumberAxis yAxis;
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
initSeries();
// Close the application when the window is closed
stage.setOnCloseRequest(t -> {
Platform.exit();
System.exit(0);
});
stage.setScene(
new Scene(
layerCharts(
createLineChart1(),
createLineChart2()
)
)
);
stage.show();
}
@SuppressWarnings("unchecked")
private void initSeries() {
lineSeries1 = new XYChart.Series(
FXCollections.observableArrayList(
new XYChart.Data(1, 2),
new XYChart.Data(2, 10),
new XYChart.Data(3, 8),
new XYChart.Data(4, 4),
new XYChart.Data(5, 7),
new XYChart.Data(6, 5),
new XYChart.Data(7, 4),
new XYChart.Data(8, 8),
new XYChart.Data(9, 16.5),
new XYChart.Data(10, 13.9),
new XYChart.Data(11, 17),
new XYChart.Data(12, 10)
)
);
lineSeries2 = new XYChart.Series(
FXCollections.observableArrayList(
new XYChart.Data(1, 1),
new XYChart.Data(2, 2),
new XYChart.Data(3, 1.5),
new XYChart.Data(4, 3),
new XYChart.Data(5, 2.5),
new XYChart.Data(6, 5),
new XYChart.Data(7, 4),
new XYChart.Data(8, 8),
new XYChart.Data(9, 6.5),
new XYChart.Data(10, 13),
new XYChart.Data(11, 10),
new XYChart.Data(12, 20)
)
);
createYaxis();
}
private void createYaxis() {
yAxis = new NumberAxis();
yAxis.setAutoRanging(false);
yAxis.setPrefWidth(35);
yAxis.setMinorTickCount(10);
yAxis.setLowerBound(0);
yAxis.setUpperBound(20);
}
private NumberAxis createXaxis() {
NumberAxis xAxis = new NumberAxis();
xAxis.setAutoRanging(false);
xAxis.setLowerBound(-10);
xAxis.setUpperBound(22);
xAxes.add(xAxis);
return xAxis;
}
@SuppressWarnings("unchecked")
private LineChart<Number, Number> createLineChart1() {
final LineChart<Number, Number> chart = new LineChart<>(createXaxis(), yAxis);
setDefaultChartProperties(chart);
chart.setCreateSymbols(false);
chart.getData().addAll(lineSeries1);
return chart;
}
@SuppressWarnings("unchecked")
private LineChart<Number, Number> createLineChart2() {
final LineChart<Number, Number> chart = new LineChart<>(createXaxis(), yAxis);
setDefaultChartProperties(chart);
chart.setCreateSymbols(false);
chart.getData().addAll(lineSeries2);
return chart;
}
private void setDefaultChartProperties(final XYChart<Number, Number> chart) {
chart.setLegendVisible(false);
chart.setAnimated(false);
}
@SafeVarargs
private final StackPane layerCharts(final XYChart<Number, Number>... charts) {
for (int i = 1; i < charts.length; i++) {
configureOverlayChart(charts[i]);
}
StackPane stackpane = new StackPane();
stackpane.getChildren().addAll(charts);
stackpane.setOnScroll(event -> {
double deltaX = event.getDeltaX();
if (deltaX != 0) {
for (NumberAxis xAxis : xAxes) {
xAxis.setUpperBound(xAxis.getUpperBound() - deltaX / 10);
xAxis.setLowerBound(xAxis.getLowerBound() - deltaX / 10);
}
}
});
return stackpane;
}
private void configureOverlayChart(final XYChart<Number, Number> chart) {
chart.setAlternativeRowFillVisible(false);
chart.setAlternativeColumnFillVisible(false);
chart.setHorizontalGridLinesVisible(false);
chart.setVerticalGridLinesVisible(false);
chart.getXAxis().setVisible(false);
chart.getYAxis().setVisible(false);
chart.getStylesheets().addAll(getClass().getResource("/overlay-chart.css").toExternalForm());
}
}
。但是，有一种情况不起作用：
基本上，当手表应用程序打开时，我需要检查并查看iOS应用程序中是否有数据。
我试过了：
WCSession但即使使用文档中描述的正确委托方法，这种方法似乎也无法在我的Watch App上等待数据。