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Thread: MouseListener accumulating when setting new MouseListeners with mouseClicked()

  1. #1
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    Default MouseListener accumulating when setting new MouseListeners with mouseClicked()

    Hi,

    I am a java beginner. I have an annoying problem . Im trying to make a card game with labels.

    My constructor, which has the GUI, has mouseListeners on the card labels... which can set other mouse listeners on new cards...for example when I click a card to play it...or when i draw a fresh one( which need to be made clickable)

    My question: how can I set the mouse listeners from executing multiple times at a single click ? First click works normally, but next onex executes 2, 4, 6 etc times , at a single click....playing multiple cards at a time

    basically I want to be able to do some stuff when clicking AND refresh listeners ( or put new ones on new cards )...but they should execute only once per click

    Any help ?

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    Super Moderator Norm's Avatar
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    Default Re: MouseListener accumulating when setting new MouseListeners with mouseClicked()

    The Component class has several methods that can be used to control its listeners: add..., get... and remove...
    Use those methods as needed for you application. For example if you want to replace an existing listener with a new listener, get the current listener, remove it and add the new listener.

    Note: it is possible to have multiple listeners. Adding a new listener does not remove any current listeners.
    If you don't understand my answer, don't ignore it, ask a question.

  3. The Following User Says Thank You to Norm For This Useful Post:

    benuu90 (September 18th, 2020)

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    Default Re: MouseListener accumulating when setting new MouseListeners with mouseClicked()

    Thanks.

    I saved in an array all labels, applied listener to all with a loop, added in another array the eligible labels for clicking, and I read the clicked label with an "if".

    Don't know if its the best solution, but it works flawlessly

    Thanks a lot

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