com.datecs.universalreader

## Interface UniversalReader.ButtonListener

- Enclosing class:
    UniversalReader

      public static interface UniversalReader.ButtonListener

  Interface definition for a callbacks to notify for button event.

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `OnButtonStateChanged(boolean pressed)` This method is invoke when button state is changed.

- - ### Method Detail

    - #### OnButtonStateChanged

          void OnButtonStateChanged(boolean pressed)

      This method is invoke when button state is changed.
      Parameters:
        `pressed` - current button state.