03a-data-binding

app/src/main/java/com/karumi/jetpack/superheroes/ui/presenter/EditSuperHeroPresenter.kt

@@ -70,8 +70,8 @@ class EditSuperHeroPresenter(
 
     interface View {
         fun close()
-        fun showLoading()
         fun hideLoading()
+        fun showLoading()
         fun showSuperHero(superHero: SuperHero)
     }
 }

app/src/main/java/com/karumi/jetpack/superheroes/ui/presenter/SuperHeroDetailPresenter.kt

@@ -45,8 +45,8 @@ class SuperHeroDetailPresenter(
     }
 
     interface View {
-        fun showLoading()
         fun hideLoading()
+        fun showLoading()
         fun showSuperHero(superHero: SuperHero)
         fun openEditSuperHero(superHeroId: String)
     }

app/src/main/java/com/karumi/jetpack/superheroes/ui/view/BaseActivity.kt

@@ -4,12 +4,14 @@ import android.content.Intent
 import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.widget.Toolbar
+import androidx.databinding.DataBindingUtil
+import androidx.databinding.ViewDataBinding
 import androidx.lifecycle.LifecycleObserver
 import org.kodein.di.Kodein
 import org.kodein.di.KodeinAware
 import org.kodein.di.android.closestKodein
 
-abstract class BaseActivity : AppCompatActivity(), KodeinAware {
+abstract class BaseActivity<T : ViewDataBinding> : AppCompatActivity(), KodeinAware {
 
     private val appKodein by closestKodein()
     override val kodein: Kodein = Kodein.lazy {
@@ -20,11 +22,13 @@ abstract class BaseActivity : AppCompatActivity(), KodeinAware {
     abstract val layoutId: Int
     abstract val toolbarView: Toolbar
     abstract val activityModules: Kodein.Module
+    protected lateinit var binding: T
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         lifecycle.addObserver(presenter)
-        setContentView(layoutId)
+        binding = DataBindingUtil.setContentView(this, layoutId)
+        configureBinding(binding)
         setSupportActionBar(toolbarView)
         prepare(intent)
     }
@@ -34,5 +38,6 @@ abstract class BaseActivity : AppCompatActivity(), KodeinAware {
         lifecycle.removeObserver(presenter)
     }
 
+    abstract fun configureBinding(binding: T)
     open fun prepare(intent: Intent?) {}
 }

app/src/main/java/com/karumi/jetpack/superheroes/ui/view/EditSuperHeroActivity.kt

@@ -3,10 +3,10 @@ package com.karumi.jetpack.superheroes.ui.view
 import android.app.Activity
 import android.content.Intent
 import android.os.Bundle
-import android.view.View
 import androidx.appcompat.widget.Toolbar
 import com.karumi.jetpack.superheroes.R
 import com.karumi.jetpack.superheroes.common.module
+import com.karumi.jetpack.superheroes.databinding.EditSuperHeroActivityBinding
 import com.karumi.jetpack.superheroes.domain.model.SuperHero
 import com.karumi.jetpack.superheroes.domain.usecase.GetSuperHeroById
 import com.karumi.jetpack.superheroes.domain.usecase.SaveSuperHero
@@ -17,7 +17,10 @@ import org.kodein.di.erased.bind
 import org.kodein.di.erased.instance
 import org.kodein.di.erased.provider
 
-class EditSuperHeroActivity : BaseActivity(), EditSuperHeroPresenter.View {
+class EditSuperHeroActivity :
+    BaseActivity<EditSuperHeroActivityBinding>(),
+    EditSuperHeroPresenter.View {
+
     companion object {
         private const val SUPER_HERO_ID_KEY = "super_hero_id_key"
 
@@ -45,6 +48,11 @@ class EditSuperHeroActivity : BaseActivity(), EditSuperHeroPresenter.View {
         }
     }
 
+    override fun configureBinding(binding: EditSuperHeroActivityBinding) {
+        binding.listener = presenter
+        binding.isLoading = false
+    }
+
     override fun prepare(intent: Intent?) {
         title = superHeroId
         presenter.preparePresenter(superHeroId)
@@ -55,24 +63,16 @@ class EditSuperHeroActivity : BaseActivity(), EditSuperHeroPresenter.View {
     }
 
     override fun showLoading() = runOnUiThread {
-        et_super_hero_name.isEnabled = false
-        et_super_hero_description.isEnabled = false
-        bt_save_edition.isEnabled = false
-        progress_bar.visibility = View.VISIBLE
+        binding.isLoading = true
     }
 
     override fun hideLoading() = runOnUiThread {
-        et_super_hero_name.isEnabled = true
-        et_super_hero_description.isEnabled = true
-        bt_save_edition.isEnabled = true
-        progress_bar.visibility = View.GONE
+        binding.isLoading = false
     }
 
     override fun showSuperHero(superHero: SuperHero) = runOnUiThread {
-        et_super_hero_name.setText(superHero.name)
-        et_super_hero_description.setText(superHero.description)
+        binding.superHero = superHero
         iv_super_hero_photo.setImageBackground(superHero.photo)
-        cb_is_avenger.isChecked = superHero.isAvenger
     }
 
     override val activityModules = module {

app/src/main/java/com/karumi/jetpack/superheroes/ui/view/MainActivity.kt

@@ -1,11 +1,11 @@
 package com.karumi.jetpack.superheroes.ui.view
 
 import android.os.Bundle
-import android.view.View
 import androidx.appcompat.widget.Toolbar
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.karumi.jetpack.superheroes.R
 import com.karumi.jetpack.superheroes.common.module
+import com.karumi.jetpack.superheroes.databinding.MainActivityBinding
 import com.karumi.jetpack.superheroes.domain.model.SuperHero
 import com.karumi.jetpack.superheroes.domain.usecase.GetSuperHeroes
 import com.karumi.jetpack.superheroes.ui.presenter.SuperHeroesPresenter
@@ -15,7 +15,7 @@ import org.kodein.di.erased.bind
 import org.kodein.di.erased.instance
 import org.kodein.di.erased.provider
 
-class MainActivity : BaseActivity(), SuperHeroesPresenter.View {
+class MainActivity : BaseActivity<MainActivityBinding>(), SuperHeroesPresenter.View {
 
     override val presenter: SuperHeroesPresenter by instance()
     private lateinit var adapter: SuperHeroesAdapter
@@ -29,6 +29,11 @@ class MainActivity : BaseActivity(), SuperHeroesPresenter.View {
         initializeRecyclerView()
     }
 
+    override fun configureBinding(binding: MainActivityBinding) {
+        binding.isLoading = false
+        binding.isShowingEmptyCase = false
+    }
+
     private fun initializeAdapter() {
         adapter = SuperHeroesAdapter(presenter)
     }
@@ -40,15 +45,15 @@ class MainActivity : BaseActivity(), SuperHeroesPresenter.View {
     }
 
     override fun showLoading() = runOnUiThread {
-        progress_bar.visibility = View.VISIBLE
+        binding.isLoading = true
     }
 
     override fun hideLoading() = runOnUiThread {
-        progress_bar.visibility = View.GONE
+        binding.isLoading = false
     }
 
     override fun showEmptyCase() = runOnUiThread {
-        tv_empty_case.visibility = View.VISIBLE
+        binding.isShowingEmptyCase = true
     }
 
     override fun showSuperHeroes(superHeroes: List<SuperHero>) = runOnUiThread {

app/src/main/java/com/karumi/jetpack/superheroes/ui/view/SuperHeroDetailActivity.kt

@@ -2,11 +2,10 @@ package com.karumi.jetpack.superheroes.ui.view
 
 import android.app.Activity
 import android.content.Intent
-import android.os.Bundle
-import android.view.View
 import androidx.appcompat.widget.Toolbar
 import com.karumi.jetpack.superheroes.R
 import com.karumi.jetpack.superheroes.common.module
+import com.karumi.jetpack.superheroes.databinding.SuperHeroDetailActivityBinding
 import com.karumi.jetpack.superheroes.domain.model.SuperHero
 import com.karumi.jetpack.superheroes.domain.usecase.GetSuperHeroById
 import com.karumi.jetpack.superheroes.ui.presenter.SuperHeroDetailPresenter
@@ -16,8 +15,9 @@ import org.kodein.di.erased.bind
 import org.kodein.di.erased.instance
 import org.kodein.di.erased.provider
 
-class SuperHeroDetailActivity : BaseActivity(), SuperHeroDetailPresenter.View {
-
+class SuperHeroDetailActivity :
+    BaseActivity<SuperHeroDetailActivityBinding>(),
+    SuperHeroDetailPresenter.View {
     companion object {
         private const val SUPER_HERO_ID_KEY = "super_hero_id_key"
 
@@ -34,9 +34,9 @@ class SuperHeroDetailActivity : BaseActivity(), SuperHeroDetailPresenter.View {
         get() = toolbar
     private val superHeroId: String by lazy { intent?.extras?.getString(SUPER_HERO_ID_KEY) ?: "" }
 
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        edit_super_hero.setOnClickListener { presenter.onEditSelected() }
+    override fun configureBinding(binding: SuperHeroDetailActivityBinding) {
+        binding.listener = presenter
+        binding.isLoading = false
     }
 
     override fun prepare(intent: Intent?) {
@@ -45,22 +45,17 @@ class SuperHeroDetailActivity : BaseActivity(), SuperHeroDetailPresenter.View {
     }
 
     override fun showLoading() = runOnUiThread {
-        progress_bar.visibility = View.VISIBLE
+        binding.isLoading = true
     }
 
     override fun hideLoading() = runOnUiThread {
-        progress_bar.visibility = View.GONE
+        binding.isLoading = false
     }
 
     override fun showSuperHero(superHero: SuperHero) = runOnUiThread {
         title = superHero.name
-        tv_super_hero_name.text = superHero.name
-        tv_super_hero_description.text = superHero.description
-        iv_avengers_badge.visibility =
-            if (superHero.isAvenger) View.VISIBLE else View.GONE
+        binding.superHero = superHero
         iv_super_hero_photo.setImageBackground(superHero.photo)
-        edit_super_hero.visibility = View.VISIBLE
-        super_hero_background.visibility = View.VISIBLE
     }
 
     override fun openEditSuperHero(superHeroId: String) = runOnUiThread {