implements fragments logics via databinding

app/src/main/java/com/skydoves/themovies/binding/RecyclerViewBinding.kt

@@ -0,0 +1,42 @@
+package com.skydoves.themovies.binding
+
+import androidx.databinding.BindingAdapter
+import androidx.recyclerview.widget.RecyclerView
+import com.skydoves.themovies.extension.bindResource
+import com.skydoves.themovies.models.Resource
+import com.skydoves.themovies.models.entity.Movie
+import com.skydoves.themovies.models.entity.Person
+import com.skydoves.themovies.models.entity.Tv
+import com.skydoves.themovies.view.adapter.MovieListAdapter
+import com.skydoves.themovies.view.adapter.PeopleAdapter
+import com.skydoves.themovies.view.adapter.TvListAdapter
+
+@BindingAdapter("adapterMovieList")
+fun bindAdapterMovieList(view: RecyclerView, resource: Resource<List<Movie>>?) {
+  view.bindResource(resource) {
+    if (resource != null) {
+      val adapter = view.adapter as? MovieListAdapter
+      adapter?.addMovieList(resource)
+    }
+  }
+}
+
+@BindingAdapter("adapterPersonList")
+fun bindAdapterPersonList(view: RecyclerView, resource: Resource<List<Person>>?) {
+  view.bindResource(resource) {
+    if (resource != null) {
+      val adapter = view.adapter as? PeopleAdapter
+      adapter?.addPeople(resource)
+    }
+  }
+}
+
+@BindingAdapter("adapterTvList")
+fun bindAdapterTvList(view: RecyclerView, resource: Resource<List<Tv>>?) {
+  view.bindResource(resource) {
+    if (resource != null) {
+      val adapter = view.adapter as? TvListAdapter
+      adapter?.addTvList(resource)
+    }
+  }
+}

app/src/main/java/com/skydoves/themovies/extension/RecyclerViewExtension.kt

@@ -0,0 +1,16 @@
+package com.skydoves.themovies.extension
+
+import androidx.recyclerview.widget.RecyclerView
+import com.skydoves.themovies.models.Resource
+import com.skydoves.themovies.models.Status
+import org.jetbrains.anko.toast
+
+fun RecyclerView.bindResource(resource: Resource<Any>?, onSuccess: () -> Unit) {
+  if (resource != null) {
+    when (resource.status) {
+      Status.LOADING -> Unit
+      Status.SUCCESS -> onSuccess()
+      Status.ERROR -> this.context.toast(resource.errorEnvelope?.status_message.toString())
+    }
+  }
+}

app/src/main/java/com/skydoves/themovies/view/ui/details/person/PersonDetailActivity.kt

@@ -107,16 +107,18 @@ class PersonDetailActivity : AppCompatActivity() {
     const val intent_requestCode = 1000
     const val personId = "person"
 
-    fun startActivity(fragment: Fragment, activity: FragmentActivity, person: Person, view: View) {
-      if (activity.checkIsMaterialVersion()) {
-        val intent = Intent(activity, PersonDetailActivity::class.java)
-        ViewCompat.getTransitionName(view)?.let {
-          val options = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, view, it)
-          intent.putExtra(personId, person)
-          activity.startActivityFromFragment(fragment, intent, intent_requestCode, options.toBundle())
+    fun startActivity(fragment: Fragment, activity: FragmentActivity?, person: Person, view: View) {
+      if (activity != null) {
+        if (activity.checkIsMaterialVersion()) {
+          val intent = Intent(activity, PersonDetailActivity::class.java)
+          ViewCompat.getTransitionName(view)?.let {
+            val options = ActivityOptionsCompat.makeSceneTransitionAnimation(activity, view, it)
+            intent.putExtra(personId, person)
+            activity.startActivityFromFragment(fragment, intent, intent_requestCode, options.toBundle())
+          }
+        } else {
+          activity.startActivityForResult<PersonDetailActivity>(intent_requestCode, personId to person)
         }
-      } else {
-        activity.startActivityForResult<PersonDetailActivity>(intent_requestCode, personId to person)
       }
     }
   }

app/src/main/java/com/skydoves/themovies/view/ui/main/MainActivityViewModel.kt

@@ -26,13 +26,13 @@ constructor(
 ) : ViewModel() {
 
   private var moviePageLiveData: MutableLiveData<Int> = MutableLiveData()
-  private val movieListLiveData: LiveData<Resource<List<Movie>>>
+  val movieListLiveData: LiveData<Resource<List<Movie>>>
 
   private var tvPageLiveData: MutableLiveData<Int> = MutableLiveData()
-  private val tvListLiveData: LiveData<Resource<List<Tv>>>
+  val tvListLiveData: LiveData<Resource<List<Tv>>>
 
   private var peoplePageLiveData: MutableLiveData<Int> = MutableLiveData()
-  private val peopleLiveData: LiveData<Resource<List<Person>>>
+  val peopleLiveData: LiveData<Resource<List<Person>>>
 
   init {
     Timber.d("injection MainActivityViewModel")
@@ -52,15 +52,12 @@ constructor(
     }
   }
 
-  fun getMovieListObservable() = movieListLiveData
-  fun getMovieListValues() = getMovieListObservable().value
+  fun getMovieListValues() = movieListLiveData.value
   fun postMoviePage(page: Int) = moviePageLiveData.postValue(page)
 
-  fun getTvListObservable() = tvListLiveData
-  fun getTvListValues() = getTvListObservable().value
+  fun getTvListValues() = tvListLiveData.value
   fun postTvPage(page: Int) = tvPageLiveData.postValue(page)
 
-  fun getPeopleObservable() = peopleLiveData
-  fun getPeopleValues() = getPeopleObservable().value
+  fun getPeopleValues() = peopleLiveData.value
   fun postPeoplePage(page: Int) = peoplePageLiveData.postValue(page)
 }

app/src/main/java/com/skydoves/themovies/view/ui/main/MovieListFragment.kt

@@ -5,22 +5,21 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
 import androidx.recyclerview.widget.GridLayoutManager
 import com.skydoves.baserecyclerviewadapter.RecyclerViewPaginator
 import com.skydoves.themovies.R
-import com.skydoves.themovies.extension.observeLiveData
+import com.skydoves.themovies.databinding.MainFragmentMovieBinding
 import com.skydoves.themovies.extension.vm
-import com.skydoves.themovies.models.Resource
 import com.skydoves.themovies.models.Status
 import com.skydoves.themovies.models.entity.Movie
 import com.skydoves.themovies.view.adapter.MovieListAdapter
 import com.skydoves.themovies.view.ui.details.movie.MovieDetailActivity
 import com.skydoves.themovies.view.viewholder.MovieListViewHolder
 import dagger.android.support.AndroidSupportInjection
 import kotlinx.android.synthetic.main.main_fragment_movie.*
-import org.jetbrains.anko.support.v4.toast
 import javax.inject.Inject
 
 /**
@@ -34,12 +33,14 @@ class MovieListFragment : Fragment(), MovieListViewHolder.Delegate {
   @Inject
   lateinit var viewModelFactory: ViewModelProvider.Factory
   private val viewModel by lazy { vm(viewModelFactory, MainActivityViewModel::class) }
-
-  private val adapter = MovieListAdapter(this)
+  private lateinit var binding: MainFragmentMovieBinding
   private lateinit var paginator: RecyclerViewPaginator
 
   override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-    return inflater.inflate(R.layout.main_fragment_movie, container, false)
+    binding = DataBindingUtil.inflate(inflater, R.layout.main_fragment_movie, container, false)
+    binding.viewModel = viewModel
+    binding.lifecycleOwner = this
+    return binding.root
   }
 
   override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -50,11 +51,11 @@ class MovieListFragment : Fragment(), MovieListViewHolder.Delegate {
   override fun onAttach(context: Context) {
     AndroidSupportInjection.inject(this)
     super.onAttach(context)
-    observeViewModel()
+    loadMore(page = 1)
   }
 
   private fun initializeUI() {
-    recyclerView.adapter = adapter
+    recyclerView.adapter = MovieListAdapter(this)
     recyclerView.layoutManager = GridLayoutManager(context, 2)
     paginator = RecyclerViewPaginator(
       recyclerView = recyclerView,
@@ -65,19 +66,6 @@ class MovieListFragment : Fragment(), MovieListViewHolder.Delegate {
     paginator.currentPage = 1
   }
 
-  private fun observeViewModel() {
-    observeLiveData(viewModel.getMovieListObservable()) { updateMovieList(it) }
-    viewModel.postMoviePage(1)
-  }
-
-  private fun updateMovieList(resource: Resource<List<Movie>>) {
-    when (resource.status) {
-      Status.LOADING -> Unit
-      Status.SUCCESS -> adapter.addMovieList(resource)
-      Status.ERROR -> toast(resource.errorEnvelope?.status_message.toString())
-    }
-  }
-
   private fun loadMore(page: Int) {
     viewModel.postMoviePage(page)
   }

app/src/main/java/com/skydoves/themovies/view/ui/main/PersonListFragment.kt

@@ -5,23 +5,21 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
 import androidx.recyclerview.widget.GridLayoutManager
 import com.skydoves.baserecyclerviewadapter.RecyclerViewPaginator
 import com.skydoves.themovies.R
-import com.skydoves.themovies.extension.observeLiveData
+import com.skydoves.themovies.databinding.MainFragmentStarBinding
 import com.skydoves.themovies.extension.vm
-import com.skydoves.themovies.models.Resource
 import com.skydoves.themovies.models.Status
 import com.skydoves.themovies.models.entity.Person
 import com.skydoves.themovies.view.adapter.PeopleAdapter
 import com.skydoves.themovies.view.ui.details.person.PersonDetailActivity
 import com.skydoves.themovies.view.viewholder.PeopleViewHolder
 import dagger.android.support.AndroidSupportInjection
 import kotlinx.android.synthetic.main.main_fragment_movie.*
-import org.jetbrains.anko.support.v4.startActivity
-import org.jetbrains.anko.support.v4.toast
 import javax.inject.Inject
 
 /**
@@ -35,12 +33,14 @@ class PersonListFragment : Fragment(), PeopleViewHolder.Delegate {
   @Inject
   lateinit var viewModelFactory: ViewModelProvider.Factory
   private val viewModel by lazy { vm(viewModelFactory, MainActivityViewModel::class) }
-
-  private val adapter = PeopleAdapter(this)
+  private lateinit var binding: MainFragmentStarBinding
   private lateinit var paginator: RecyclerViewPaginator
 
   override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-    return inflater.inflate(R.layout.main_fragment_star, container, false)
+    binding = DataBindingUtil.inflate(inflater, R.layout.main_fragment_star, container, false)
+    binding.viewModel = viewModel
+    binding.lifecycleOwner = this
+    return binding.root
   }
 
   override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -51,11 +51,11 @@ class PersonListFragment : Fragment(), PeopleViewHolder.Delegate {
   override fun onAttach(context: Context) {
     AndroidSupportInjection.inject(this)
     super.onAttach(context)
-    observeViewModel()
+    loadMore(page = 1)
   }
 
   private fun initializeUI() {
-    recyclerView.adapter = adapter
+    recyclerView.adapter = PeopleAdapter(this)
     recyclerView.layoutManager = GridLayoutManager(context, 2)
     paginator = RecyclerViewPaginator(
       recyclerView = recyclerView,
@@ -64,26 +64,11 @@ class PersonListFragment : Fragment(), PeopleViewHolder.Delegate {
       onLast = { viewModel.getPeopleValues()?.onLastPage!! })
   }
 
-  private fun observeViewModel() {
-    observeLiveData(viewModel.getPeopleObservable()) { updatePeople(it) }
-    viewModel.postPeoplePage(1)
-  }
-
-  private fun updatePeople(resource: Resource<List<Person>>) {
-    when (resource.status) {
-      Status.LOADING -> Unit
-      Status.SUCCESS -> adapter.addPeople(resource)
-      Status.ERROR -> toast(resource.errorEnvelope?.status_message.toString())
-    }
-  }
-
   private fun loadMore(page: Int) {
     viewModel.postPeoplePage(page)
   }
 
   override fun onItemClick(person: Person, view: View) {
-    activity?.let {
-      PersonDetailActivity.startActivity(this, it, person, view)
-    } ?: startActivity<PersonDetailActivity>("person" to person)
+    PersonDetailActivity.startActivity(this, activity, person, view)
   }
 }

app/src/main/java/com/skydoves/themovies/view/ui/main/TvListFragment.kt

@@ -5,22 +5,21 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
 import androidx.recyclerview.widget.GridLayoutManager
 import com.skydoves.baserecyclerviewadapter.RecyclerViewPaginator
 import com.skydoves.themovies.R
-import com.skydoves.themovies.extension.observeLiveData
+import com.skydoves.themovies.databinding.MainFragmentTvBinding
 import com.skydoves.themovies.extension.vm
-import com.skydoves.themovies.models.Resource
 import com.skydoves.themovies.models.Status
 import com.skydoves.themovies.models.entity.Tv
 import com.skydoves.themovies.view.adapter.TvListAdapter
 import com.skydoves.themovies.view.ui.details.tv.TvDetailActivity
 import com.skydoves.themovies.view.viewholder.TvListViewHolder
 import dagger.android.support.AndroidSupportInjection
 import kotlinx.android.synthetic.main.main_fragment_movie.*
-import org.jetbrains.anko.support.v4.toast
 import javax.inject.Inject
 
 /**
@@ -34,12 +33,14 @@ class TvListFragment : Fragment(), TvListViewHolder.Delegate {
   @Inject
   lateinit var viewModelFactory: ViewModelProvider.Factory
   private val viewModel by lazy { vm(viewModelFactory, MainActivityViewModel::class) }
-
-  private val adapter = TvListAdapter(this)
+  private lateinit var binding: MainFragmentTvBinding
   private lateinit var paginator: RecyclerViewPaginator
 
   override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
-    return inflater.inflate(R.layout.main_fragment_tv, container, false)
+    binding = DataBindingUtil.inflate(inflater, R.layout.main_fragment_tv, container, false)
+    binding.viewModel = viewModel
+    binding.lifecycleOwner = this
+    return binding.root
   }
 
   override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -50,11 +51,11 @@ class TvListFragment : Fragment(), TvListViewHolder.Delegate {
   override fun onAttach(context: Context) {
     AndroidSupportInjection.inject(this)
     super.onAttach(context)
-    observeViewModel()
+    loadMore(page = 1)
   }
 
   private fun initializeUI() {
-    recyclerView.adapter = adapter
+    recyclerView.adapter = TvListAdapter(this)
     recyclerView.layoutManager = GridLayoutManager(context, 2)
     paginator = RecyclerViewPaginator(
       recyclerView = recyclerView,
@@ -65,19 +66,6 @@ class TvListFragment : Fragment(), TvListViewHolder.Delegate {
     paginator.currentPage = 1
   }
 
-  private fun observeViewModel() {
-    observeLiveData(viewModel.getTvListObservable()) { updateTvList(it) }
-    viewModel.postTvPage(1)
-  }
-
-  private fun updateTvList(resource: Resource<List<Tv>>) {
-    when (resource.status) {
-      Status.LOADING -> Unit
-      Status.SUCCESS -> adapter.addTvList(resource)
-      Status.ERROR -> toast(resource.errorEnvelope?.status_message.toString())
-    }
-  }
-
   private fun loadMore(page: Int) {
     viewModel.postTvPage(page)
   }