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XiaoChuan Yu
XiaoChuan Yu
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Not sure if I understand your question clearly. I'll assume the following:

  • You got a Stage set as InputProcessor
  • You got another special button as InputProcessor which you refer to as "device back button"
  • You want them both to process input but it seems you can only set 1 InputProcessor at a time

If above is the case, then one way is to use an InputMultiplexerInputMultiplexer which is apart of libgdx.

First, create an InputMultiplexer.

Then, set it as the InputProccessor.

Add your two InputProcessors to the InputMultiplexer: back button, then stage in this order.

  • If you return false in back button event handlers, then the event gets passed to stage as well.
  • If you return true in back button event handlers, then events do not get raised in stage.

Not sure if I understand your question clearly. I'll assume the following:

  • You got a Stage set as InputProcessor
  • You got another special button as InputProcessor which you refer to as "device back button"
  • You want them both to process input but it seems you can only set 1 InputProcessor at a time

If above is the case, then one way is to use an InputMultiplexer which is apart of libgdx.

First, create an InputMultiplexer.

Then, set it as the InputProccessor.

Add your two InputProcessors to the InputMultiplexer: back button, then stage in this order.

  • If you return false in back button event handlers, then the event gets passed to stage as well.
  • If you return true in back button event handlers, then events do not get raised in stage.

Not sure if I understand your question clearly. I'll assume the following:

  • You got a Stage set as InputProcessor
  • You got another special button as InputProcessor which you refer to as "device back button"
  • You want them both to process input but it seems you can only set 1 InputProcessor at a time

If above is the case, then one way is to use an InputMultiplexer which is apart of libgdx.

First, create an InputMultiplexer.

Then, set it as the InputProccessor.

Add your two InputProcessors to the InputMultiplexer: back button, then stage in this order.

  • If you return false in back button event handlers, then the event gets passed to stage as well.
  • If you return true in back button event handlers, then events do not get raised in stage.
Correction: "Delegation for an event stops if a processor returns true, which indicates that the event was handled." See http://libgdx.badlogicgames.com/nightlies/docs/api/com/badlogic/gdx/InputMultiplexer.html
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edit approved Feb 20, 2014 at 22:48
Alexander Mironov
edit approved Feb 20, 2014 at 22:48
Alexander Mironov
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Not sure if I understand your question clearly. I'll assume the following:

  • You got a Stage set as InputProcessor
  • You got another special button as InputProcessor which you refer to as "device back button"
  • You want them both to process input but it seems you can only set 1 InputProcessor at a time

If above is the case, then one way is to use an InputMultiplexer which is apart of libgdx.

First, create an InputMultiplexer.

Then, set it as the InputProccessor.

Add your two InputProcessors to the InputMultiplexer: back button, then stage in this order.

  • If you return truefalse in back button event handlers, then the event gets passed to stage as well.
  • If you return falsetrue in back button event handlers, then events do not get raised in stage.

Not sure if I understand your question clearly. I'll assume the following:

  • You got a Stage set as InputProcessor
  • You got another special button as InputProcessor which you refer to as "device back button"
  • You want them both to process input but it seems you can only set 1 InputProcessor at a time

If above is the case, then one way is to use an InputMultiplexer which is apart of libgdx.

First, create an InputMultiplexer.

Then, set it as the InputProccessor.

Add your two InputProcessors to the InputMultiplexer: back button, then stage in this order.

  • If you return true in back button event handlers, then the event gets passed to stage as well.
  • If you return false in back button event handlers, then events do not get raised in stage.

Not sure if I understand your question clearly. I'll assume the following:

  • You got a Stage set as InputProcessor
  • You got another special button as InputProcessor which you refer to as "device back button"
  • You want them both to process input but it seems you can only set 1 InputProcessor at a time

If above is the case, then one way is to use an InputMultiplexer which is apart of libgdx.

First, create an InputMultiplexer.

Then, set it as the InputProccessor.

Add your two InputProcessors to the InputMultiplexer: back button, then stage in this order.

  • If you return false in back button event handlers, then the event gets passed to stage as well.
  • If you return true in back button event handlers, then events do not get raised in stage.
Source Link
XiaoChuan Yu
XiaoChuan Yu
  • 1.8k
  • 12
  • 15

Not sure if I understand your question clearly. I'll assume the following:

  • You got a Stage set as InputProcessor
  • You got another special button as InputProcessor which you refer to as "device back button"
  • You want them both to process input but it seems you can only set 1 InputProcessor at a time

If above is the case, then one way is to use an InputMultiplexer which is apart of libgdx.

First, create an InputMultiplexer.

Then, set it as the InputProccessor.

Add your two InputProcessors to the InputMultiplexer: back button, then stage in this order.

  • If you return true in back button event handlers, then the event gets passed to stage as well.
  • If you return false in back button event handlers, then events do not get raised in stage.