Hello,
several times a day I observe multiple touch events at once, whereas I touch only with one finger to one place. These touches are always vertical = almost the same X coordination, but the large area in Y coordination. I'm using resolution 1920x1080. I've tried 2 different touch monitors, but the same behaviour - both iiyama T2235MSC-B1. I've written C++ touch application to check my touch screen, but it's perfectly okay, no this behaviour in C++. Only in Java FX. I'm using OpenJDK 11.0.2 and Windows 10. Every time this happens only when I touch the screen. Is there any cache for touch events in JavaFX, which is not properly cleaned? Have you observed this as well? What can I do? This is a showstopper for my whole app in production. Problem starts at [DEBUG] 2019-03-01T12:03:38.740+01:00 [JavaFX Application Thread] (BaseScene.java:193) - TOUCH_PRESSED target button - ID fastB1, classes button keyboardBtn fastB1Style [DEBUG] 2019-03-01T12:03:38.740+01:00 [JavaFX Application Thread] (BaseScene.java:214) - - touchEvent - setID = 1, touchPoint count = 1, point = [1163.0, 77.0] [DEBUG] 2019-03-01T12:03:38.740+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1163.0, 77.0], state = PRESSED [DEBUG] 2019-03-01T12:03:38.741+01:00 [JavaFX Application Thread] (BaseScene.java:193) - TOUCH_PRESSED target button - ID fastB2, classes button keyboardBtn fastB2Style [DEBUG] 2019-03-01T12:03:38.741+01:00 [JavaFX Application Thread] (BaseScene.java:214) - - touchEvent - setID = 2, touchPoint count = 2, point = [1153.0, 148.0] [DEBUG] 2019-03-01T12:03:38.741+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1163.0, 77.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.741+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1153.0, 148.0], state = PRESSED . Many other events come one by one till approx 8 stationary events at one: [DEBUG] 2019-03-01T12:03:38.745+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1163.0, 77.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.745+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1153.0, 148.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.745+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1163.0, 239.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.746+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1160.0, 314.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.746+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1159.0, 413.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.746+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1160.0, 482.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.746+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1154.0, 539.0], state = PRESSED [DEBUG] 2019-03-01T12:03:38.746+01:00 [JavaFX Application Thread] (BaseScene.java:193) - TOUCH_PRESSED target button - ID null, classes button keyboardBtn [DEBUG] 2019-03-01T12:03:38.746+01:00 [JavaFX Application Thread] (BaseScene.java:214) - - touchEvent - setID = 8, touchPoint count = 8, point = [1150.0, 975.0] [DEBUG] 2019-03-01T12:03:38.746+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1163.0, 77.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.746+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1153.0, 148.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.746+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1163.0, 239.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.747+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1160.0, 314.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.747+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1159.0, 413.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.747+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1160.0, 482.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.747+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1154.0, 539.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.747+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1150.0, 975.0], state = PRESSED [DEBUG] 2019-03-01T12:03:38.806+01:00 [JavaFX Application Thread] (BaseScene.java:193) - TOUCH_RELEASED target button - ID fastB1, classes button keyboardBtn fastB1Style [DEBUG] 2019-03-01T12:03:38.807+01:00 [JavaFX Application Thread] (BaseScene.java:214) - - touchEvent - setID = 18, touchPoint count = 8, point = [1163.0, 77.0] [DEBUG] 2019-03-01T12:03:38.807+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1163.0, 77.0], state = RELEASED [DEBUG] 2019-03-01T12:03:38.807+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1153.0, 148.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.807+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1163.0, 239.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.807+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1160.0, 314.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.807+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1159.0, 413.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.807+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1160.0, 482.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.807+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1154.0, 539.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.807+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1150.0, 975.0], state = STATIONARY . and then decreasing one by one begins: [DEBUG] 2019-03-01T12:03:38.812+01:00 [JavaFX Application Thread] (BaseScene.java:197) - TOUCH_RELEASED No target/parent button/label - target is javafx.scene.control.TextField [DEBUG] 2019-03-01T12:03:38.812+01:00 [JavaFX Application Thread] (BaseScene.java:214) - - touchEvent - setID = 23, touchPoint count = 3, point = [1160.0, 482.0] [DEBUG] 2019-03-01T12:03:38.813+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1160.0, 482.0], state = RELEASED [DEBUG] 2019-03-01T12:03:38.813+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1154.0, 539.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.813+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1150.0, 975.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.813+01:00 [JavaFX Application Thread] (BaseScene.java:193) - TOUCH_RELEASED target button - ID null, classes button lightGreen2 keyboardBtn [DEBUG] 2019-03-01T12:03:38.813+01:00 [JavaFX Application Thread] (BaseScene.java:214) - - touchEvent - setID = 24, touchPoint count = 2, point = [1154.0, 539.0] [DEBUG] 2019-03-01T12:03:38.813+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1154.0, 539.0], state = RELEASED [DEBUG] 2019-03-01T12:03:38.813+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1150.0, 975.0], state = STATIONARY [DEBUG] 2019-03-01T12:03:38.840+01:00 [JavaFX Application Thread] (BaseScene.java:193) - TOUCH_RELEASED target button - ID null, classes button keyboardBtn [DEBUG] 2019-03-01T12:03:38.841+01:00 [JavaFX Application Thread] (BaseScene.java:214) - - touchEvent - setID = 30, touchPoint count = 1, point = [1151.0, 975.0] [DEBUG] 2019-03-01T12:03:38.841+01:00 [JavaFX Application Thread] (BaseScene.java:216) - --> point: [1151.0, 975.0], state = RELEASED Thank you! David
