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我沒有太多的信息,但也許有人面臨同樣的問題。我爲一些朋友編寫了一個應用程序,它包含一些警報對話。問題是警報沒有顯示在它測試過的一臺電腦上(但是在我的電腦上,它確實!)。我有Windows 10和Java 1.8.0_51,測試系統有Windows 7和Java 1.8.0_60。JavaFX警報不顯示?
我用css來設計它。這是我是如何實現它(報警只是一個音頻剪輯):
public void play(Stage stage, Callable<Void> func){
if (alert == null) {
alert = new Alert(AlertType.INFORMATION);
alert.setTitle("Alarm");
alert.setHeaderText(LanguageLoader.getInstance().getLocalizedString("alarmDialog"));
alert.initOwner(stage);
alarm.setCycleCount(Timeline.INDEFINITE);
}
if (!alert.isShowing()) {
alarm.play();
stage.toFront();
stage.requestFocus();
Optional<ButtonType> result = alert.showAndWait();
if (result.get() == ButtonType.OK) {
alarm.stop();
try {
func.call();
} catch (Exception e) {
e.printStackTrace();
}
}
}else{
alert.show();
}
}
編輯:我更新到1.8.0_60也和對話也不會被顯示在我的系統上! 這是例外,我得到:
Exception in thread "JavaFX Application Thread" java.lang.IllegalStateException: showAndWait is not allowed during animation or layout processing
at javafx.scene.control.Dialog.showAndWait(Unknown Source)
at utils.Alarm.play(Alarm.java:38)
at note.NoteController.update(Controller.java:76)
at java.util.Observable.notifyObservers(Unknown Source)
at java.util.Observable.notifyObservers(Unknown Source)
at note.NoteModel.update(Model.java:57)
at java.util.Observable.notifyObservers(Unknown Source)
at java.util.Observable.notifyObservers(Unknown Source)
at utils.Watch.lambda$0(Clock.java:35)
at com.sun.scenario.animation.shared.TimelineClipCore.visitKeyFrame(Unknown Source)
at com.sun.scenario.animation.shared.TimelineClipCore.playTo(Unknown Source)
at javafx.animation.Timeline.impl_playTo(Unknown Source)
at javafx.animation.AnimationAccessorImpl.playTo(Unknown Source)
at com.sun.scenario.animation.shared.InfiniteClipEnvelope.timePulse(Unknown Source)
at javafx.animation.Animation.impl_timePulse(Unknown Source)
at javafx.animation.Animation$1.lambda$timePulse$26(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at javafx.animation.Animation$1.timePulse(Unknown Source)
at com.sun.scenario.animation.AbstractMasterTimer.timePulseImpl(Unknown Source)
at com.sun.scenario.animation.AbstractMasterTimer$MainLoop.run(Unknown Source)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(Unknown Source)
at com.sun.javafx.tk.quantum.QuantumToolkit.pulse(Unknown Source)
at com.sun.javafx.tk.quantum.QuantumToolkit.lambda$runToolkit$405(Unknown Source)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(Unknown Source)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$149(Unknown Source)
我使用的類時鐘時間表。我想這就是問題所在。我可以在不使用時間線的情況下構建工作時鐘嗎?