implement binding for the low-level CompoundButton interface (Checkable + Listener)

[kramlex]

There is such a binding:

fun MutableLiveData<Boolean>.bindTwoWayToCheckBoxChecked(
    lifecycleOwner: LifecycleOwner,
    checkBox: CheckBox
): Closeable {
    val readCloseable = bindNotNull(lifecycleOwner) { value ->
        if (checkBox.isChecked == value) return@bindNotNull

        checkBox.isChecked = value
    }

    val checkListener = CompoundButton.OnCheckedChangeListener { _, isChecked ->
        if (value == isChecked) return@OnCheckedChangeListener

        value = isChecked
    }
    checkBox.setOnCheckedChangeListener(checkListener)

    val writeCloseable = Closeable {
        checkBox.setOnCheckedChangeListener(null)
    }

    return readCloseable + writeCloseable
}

Need:

fun MutableLiveData<Boolean>.bindTwoWayToCheckable(
    lifecycleOwner: LifecycleOwner,
    switch: CompoundButton
): Closeable {
    val readCloseable = bindNotNull(lifecycleOwner) { value ->
        if (switch.isChecked == value) return@bindNotNull

        switch.isChecked = value
    }

    val checkListener = CompoundButton.OnCheckedChangeListener { _, isChecked ->
        if (value == isChecked) return@OnCheckedChangeListener

        value = isChecked
    }


    switch.setOnCheckedChangeListener(checkListener)

    val writeCloseable = Closeable {
        switch.setOnCheckedChangeListener(null)
    }

    return readCloseable + writeCloseable
}

[Alex009]

available in 0.13.0