see: https://issuetracker.google.com/issues/73857743

FuckLiveDataBinding.kt

package com.soling_ss.motorcycle.databinding

import android.arch.lifecycle.Lifecycle
import android.arch.lifecycle.LifecycleObserver
import android.arch.lifecycle.LifecycleOwner
import android.arch.lifecycle.OnLifecycleEvent
import android.databinding.ViewDataBinding
import com.soling_ss.motorcycle.util.FieldProperty
import com.soling_ss.motorcycle.util.writeOnly
import java.lang.ref.WeakReference
import kotlin.properties.Delegates


var ViewDataBinding.lifecycleOwner: LifecycleOwner? by Delegates.writeOnly { thisRef, value -> thisRef.setLifecycleOwner(value) }

/**see: [FuckLiveDataBinding]*/
var ViewDataBinding.lifecycleOwnerFuck: LifecycleOwner? by Delegates.writeOnly { binding, owner ->
    val fuck = binding.fuck ?: FuckLiveDataBinding(binding).also { binding.fuck = it }
    fuck.listen(owner)
}
// see: https://github.com/h0tk3y/kotlin-fun/blob/master/src/main/kotlin/com/github/h0tk3y/kotlinFun/FieldProperty.kt
private var ViewDataBinding.fuck: FuckLiveDataBinding? by FieldProperty { null }

class FuckLiveDataBinding(binding: ViewDataBinding) : LifecycleObserver {
    private val bindingRef: WeakReference<ViewDataBinding?> = WeakReference(binding) // use WeakReference to prevent memory leaks
    private var ownerRef: WeakReference<LifecycleOwner>? = null // ibid.

    private inline val binding
        get() = bindingRef.get()

    private inline var owner
        get() = ownerRef?.get()
        set(value) {
            ownerRef = if (value != null) WeakReference(value) else null
        }

    fun listen(newOwner: LifecycleOwner?) {
        owner?.lifecycle?.removeObserver(this)

        newOwner?.lifecycle?.addObserver(this)
        if (newOwner == null) {
            binding?.lifecycleOwner = null
        }
        owner = newOwner
    }


    @OnLifecycleEvent(Lifecycle.Event.ON_START)
    fun onStart(owner: LifecycleOwner) {
        binding?.lifecycleOwner = owner
    }

    @OnLifecycleEvent(Lifecycle.Event.ON_STOP)
    fun onStop(owner: LifecycleOwner) {
        binding?.lifecycleOwner = null
    }

    override fun toString(): String {
        return "FuckLiveDataBinding(owner=$owner, binding=$binding)"
    }

}