TouchesEnded can not recognize a touch has been removed at Swift 4
For MultipleTouchEnabled view, touchesBegan returns touching numbers in order. When you touch one finger on screen it returns 1 when you add second finger it returns 2.
But when you remove one finger touchesEnded returns nothing while two fingers touching. It returns 2 and 1 at the same time if you remove both of your fingers from screen. So we can not know if finger numbers reduced at a certain time.
If there was a way to detect removing fingers in order I could not find.
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
if touches.first != nil {
print("touching (event?.touches(for: testView)?.count)")
}
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
if touches.first != nil {
print("untouching (event?.touches(for: testView)?.count)")
}
}
ios swift gesture
edited Nov 20 '18 at 10:29
Kuldeep
2,50441635
asked Nov 20 '18 at 10:19
HopeHope
5833828
add a comment |
For MultipleTouchEnabled view, touchesBegan returns touching numbers in order. When you touch one finger on screen it returns 1 when you add second finger it returns 2.
But when you remove one finger touchesEnded returns nothing while two fingers touching. It returns 2 and 1 at the same time if you remove both of your fingers from screen. So we can not know if finger numbers reduced at a certain time.
If there was a way to detect removing fingers in order I could not find.
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
if touches.first != nil {
print("touching (event?.touches(for: testView)?.count)")
}
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
if touches.first != nil {
print("untouching (event?.touches(for: testView)?.count)")
}
}
ios swift gesture
edited Nov 20 '18 at 10:29
Kuldeep
2,50441635
asked Nov 20 '18 at 10:19
HopeHope
5833828
Do you have multiple Gesture Recognizers on that view? If so you'd have to setrecognizer.cancelsTouchesInView = false
– Govind Kumawat
Nov 20 '18 at 10:44
add a comment |
For MultipleTouchEnabled view, touchesBegan returns touching numbers in order. When you touch one finger on screen it returns 1 when you add second finger it returns 2.
But when you remove one finger touchesEnded returns nothing while two fingers touching. It returns 2 and 1 at the same time if you remove both of your fingers from screen. So we can not know if finger numbers reduced at a certain time.
If there was a way to detect removing fingers in order I could not find.
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
if touches.first != nil {
print("touching (event?.touches(for: testView)?.count)")
}
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
if touches.first != nil {
print("untouching (event?.touches(for: testView)?.count)")
}
}
ios swift gesture
edited Nov 20 '18 at 10:29
Kuldeep
2,50441635
asked Nov 20 '18 at 10:19
HopeHope
5833828
For MultipleTouchEnabled view, touchesBegan returns touching numbers in order. When you touch one finger on screen it returns 1 when you add second finger it returns 2.
But when you remove one finger touchesEnded returns nothing while two fingers touching. It returns 2 and 1 at the same time if you remove both of your fingers from screen. So we can not know if finger numbers reduced at a certain time.
If there was a way to detect removing fingers in order I could not find.
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
if touches.first != nil {
print("touching (event?.touches(for: testView)?.count)")
}
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
if touches.first != nil {
print("untouching (event?.touches(for: testView)?.count)")
}
}
ios swift gesture
ios swift gesture
edited Nov 20 '18 at 10:29
Kuldeep
2,50441635
asked Nov 20 '18 at 10:19
HopeHope
5833828
edited Nov 20 '18 at 10:29
Kuldeep
2,50441635
asked Nov 20 '18 at 10:19
HopeHope
5833828
edited Nov 20 '18 at 10:29
Kuldeep
2,50441635
edited Nov 20 '18 at 10:29
Kuldeep
2,50441635
edited Nov 20 '18 at 10:29
Kuldeep
2,50441635
2,50441635
asked Nov 20 '18 at 10:19
HopeHope
5833828
asked Nov 20 '18 at 10:19
HopeHope
5833828
asked Nov 20 '18 at 10:19
HopeHope
5833828
5833828
Do you have multiple Gesture Recognizers on that view? If so you'd have to setrecognizer.cancelsTouchesInView = false
– Govind Kumawat
Nov 20 '18 at 10:44
add a comment |
Do you have multiple Gesture Recognizers on that view? If so you'd have to setrecognizer.cancelsTouchesInView = false
– Govind Kumawat
Nov 20 '18 at 10:44
Do you have multiple Gesture Recognizers on that view? If so you'd have to set
recognizer.cancelsTouchesInView = false– Govind Kumawat
Nov 20 '18 at 10:44
Do you have multiple Gesture Recognizers on that view? If so you'd have to set
recognizer.cancelsTouchesInView = false– Govind Kumawat
Nov 20 '18 at 10:44
add a comment |
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Do you have multiple Gesture Recognizers on that view? If so you'd have to set
recognizer.cancelsTouchesInView = false– Govind Kumawat
Nov 20 '18 at 10:44