Issuses correct

app/src/main/AndroidManifest.xml

@@ -9,23 +9,23 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.PesquisaVirtual">
-        <activity android:name=".AddTest"></activity>
+        <activity android:name=".ui.diagnose.AddTestActivity" />
         <activity
-            android:name=".User"
+            android:name=".ui.user.UserActivity"
             android:label="Usuario"
-            android:parentActivityName=".TestListActivity" />
-        <activity android:name=".TestListActivity" />
+            android:parentActivityName=".MainActivity" />
         <activity android:name=".MainActivity" />
+        <activity android:name=".ui.change_person.ListPersonActivity" />
         <activity
-            android:name=".AddUserActivity"
-            android:label="Añade a otra persona"
-            android:parentActivityName=".MainActivity" />
+            android:name=".ui.add_person.AddPersonActivity"
+            android:label="Añade a una persona"
+            />
         <activity
-            android:name=".Edit"
+            android:name=".ui.edit.Edit"
             android:label="Editar"
-            android:parentActivityName=".User" />
+            android:parentActivityName=".ui.user.UserActivity" />
         <activity
-            android:name=".Splash"
+            android:name=".ui.splash.SplashActivity"
             android:theme="@style/Theme.PesquisaVirtual.NoActionBar">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/cu/iptriana/pesquisavirtual/MainActivity.kt

 package cu.iptriana.pesquisavirtual
 
-import android.content.Context
 import android.content.Intent
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
-import com.google.android.material.floatingactionbutton.FloatingActionButton
-import com.google.android.material.snackbar.Snackbar
-import com.google.android.material.navigation.NavigationView
+import androidx.appcompat.app.AppCompatActivity
+import androidx.appcompat.widget.Toolbar
+import androidx.drawerlayout.widget.DrawerLayout
 import androidx.navigation.findNavController
 import androidx.navigation.ui.AppBarConfiguration
 import androidx.navigation.ui.navigateUp
 import androidx.navigation.ui.setupActionBarWithNavController
 import androidx.navigation.ui.setupWithNavController
-import androidx.drawerlayout.widget.DrawerLayout
-import androidx.appcompat.app.AppCompatActivity
-import androidx.appcompat.widget.PopupMenu
-import androidx.appcompat.widget.Toolbar
-import androidx.lifecycle.lifecycleScope
-import cu.iptriana.pesquisavirtual.data.AplicationDB
-import cu.iptriana.pesquisavirtual.data.Person
-import kotlinx.coroutines.launch
+import com.google.android.material.navigation.NavigationView
+import cu.iptriana.pesquisavirtual.ui.user.UserActivity
 
-class TestListActivity : AppCompatActivity() {
+class MainActivity : AppCompatActivity() {
 
     private lateinit var appBarConfiguration: AppBarConfiguration
-    private lateinit var allEntrys: Map<String, *>
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_test_list)
+        setContentView(R.layout.activity_main)
         val toolbar: Toolbar = findViewById(R.id.toolbar)
         setSupportActionBar(toolbar)
 
@@ -45,10 +37,6 @@ class TestListActivity : AppCompatActivity() {
         )
         setupActionBarWithNavController(navController, appBarConfiguration)
         navView.setupWithNavController(navController)
-        val pref = getSharedPreferences("MyPrefer", Context.MODE_PRIVATE)
-        if (pref != null) {
-            allEntrys = pref.all
-        }
     }
 
     override fun onCreateOptionsMenu(menu: Menu): Boolean {
@@ -59,29 +47,11 @@ class TestListActivity : AppCompatActivity() {
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         if (item.itemId == R.id.action_settings){
-            startActivity(Intent(this, User::class.java))
+            startActivity(Intent(this, UserActivity::class.java))
         }
         return false
     }
 
-    private fun getPersonId(allEntrys: Map<String, *>) : Int{
-        var id: Int = 0
-        for (entry in allEntrys){
-            if (entry.key == "id") id = entry.value as Int
-            break
-        }
-        return id
-    }
-
-    private fun getPersonById(id:Int): Person{
-        var person: Person? = null
-        lifecycleScope.launch {
-            val db = AplicationDB.getAplicationDB(this@TestListActivity)
-            person = db?.personDao()?.getById(id)!!
-        }
-        return person!!
-    }
-
     override fun onSupportNavigateUp(): Boolean {
         val navController = findNavController(R.id.nav_host_fragment)
         return navController.navigateUp(appBarConfiguration) || super.onSupportNavigateUp()

app/src/main/java/cu/iptriana/pesquisavirtual/data/AplicationDB.kt

@@ -13,20 +13,19 @@ abstract class AplicationDB: RoomDatabase() {
     abstract fun personDao():PersonDao
     abstract fun testDao():TestDao
     companion object{
-        var INTANCE: AplicationDB? = null
-        fun getAplicationDB(context: Context): AplicationDB? {
-            if (INTANCE == null){
-                synchronized(AplicationDB::class){
-                    INTANCE = Room.databaseBuilder(
-                        context.applicationContext,
-                        AplicationDB::class.java,"mydb"
-                        ).build()
-                }
+        private const val DATABASE_NAME = "database"
+        @Volatile var instance: AplicationDB? = null
+
+        fun getAplicationDB(context: Context): AplicationDB{
+            return instance ?: synchronized(this) {
+                instance ?: buildDatabase(context).also { instance = it }
             }
-            return INTANCE
         }
-        fun destroyDB(){
-            INTANCE = null
+
+        private fun buildDatabase(context: Context) : AplicationDB {
+            return Room.databaseBuilder(context, AplicationDB::class.java, DATABASE_NAME)
+                .fallbackToDestructiveMigration()
+                .build()
         }
     }
 }
\ No newline at end of file

app/src/main/java/cu/iptriana/pesquisavirtual/data/Person.kt

@@ -6,7 +6,7 @@ import androidx.room.PrimaryKey
 @Entity
 data class Person(
     @PrimaryKey(autoGenerate = true)
-    val id : Int = 0,
+    var id : Int = 0,
     val name:String,
     val last_name:String,
     val ci:String,

app/src/main/java/cu/iptriana/pesquisavirtual/data/PersonDao.kt

 package cu.iptriana.pesquisavirtual.data
 
+import androidx.lifecycle.LiveData
 import androidx.room.*
 
 @Dao
 interface PersonDao {
     @Query("SELECT * FROM Person")
-    suspend fun getAll():List<Person>
+    fun getAll():LiveData<List<Person>>
 
     @Query("SELECT * FROM Person WHERE id = :id")
-    suspend fun getById(id:Int):Person
+    fun getById(id:Int):LiveData<Person>
 
     @Update
     suspend fun update(person:Person)
 
     @Insert
-    suspend fun insert(person: Person)
+    suspend fun insert(person: Person):Long
 
     @Delete
     suspend fun delete(person:Person)

app/src/main/java/cu/iptriana/pesquisavirtual/data/TestDao.kt

 package cu.iptriana.pesquisavirtual.data
 
+import androidx.lifecycle.LiveData
 import androidx.room.*
 
 @Dao
 interface TestDao {
     @Query("SELECT * FROM Test WHERE id_person = :id_person")
-    suspend fun getAll(id_person: Int):List<Test>
+    fun getAll(id_person: Int):LiveData<List<Test>>
 
     @Query("SELECT * FROM Test WHERE id_test = :id")
     suspend fun getById(id:Int):Test

app/src/main/java/cu/iptriana/pesquisavirtual/ui/add_person/AddPersonFragment.kt

@@ -6,15 +6,12 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Toast
-import androidx.core.content.ContextCompat
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.ViewModelProvider
-import androidx.lifecycle.lifecycleScope
-import cu.iptriana.pesquisavirtual.R
-import cu.iptriana.pesquisavirtual.TestListActivity
-import cu.iptriana.pesquisavirtual.data.Person
+import cu.iptriana.pesquisavirtual.MainActivity
 import cu.iptriana.pesquisavirtual.databinding.FragmentAddPersonBinding
-import kotlinx.coroutines.launch
+import cu.iptriana.pesquisavirtual.di.Injector
+import cu.iptriana.pesquisavirtual.ui.change_person.ListPersonActivity
 
 class AddPersonFragment : Fragment() {
 
@@ -25,36 +22,38 @@ class AddPersonFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        viewModelAdd = ViewModelProvider(this)
-            .get(AddPersonViewModel::class.java)
+        viewModelAdd = ViewModelProvider(
+            this,
+            AddPersonViewModelFactory(
+                Injector.getPersonRepository(requireContext()),
+                Injector.getPreferences(requireContext())
+            )
+        ).get(AddPersonViewModel::class.java)
         val binding = FragmentAddPersonBinding
             .inflate(LayoutInflater.from(context), container, false)
         with(binding) {
-            buttonAgregar.setOnClickListener {
-                lifecycleScope.launch {
-                    val person = Person(
-                        0
-                        , txtName.text.toString()
+            buttonAdd.setOnClickListener {
+                viewModelAdd.addPerson(
+                    txtName.text.toString()
                     , txtLastName.text.toString()
                     , txtCi.text.toString()
                     , txtAge.text.toString().toInt()
-                        , viewModelAdd.isMale(radioButtonMasculino.isSelected)
+                    , radioButtonMasculino.isChecked
                 )
-                    context?.let { it1 -> viewModelAdd.addPerson(it1, person) }
-                }
                 Toast.makeText(context, "Registro insertado correctamente", Toast.LENGTH_SHORT)
                     .show()
-                viewModelAdd.clean(this)
+                txtName.setText("")
+                txtLastName.setText("")
+                txtCi.setText("")
+                txtAge.setText("")
             }
 
-            buttonCancelar.setOnClickListener{
-                context?.let { it1 ->
-                    ContextCompat.startActivity(
-                        it1,
-                        Intent(context, TestListActivity::class.java),
-                        null
-                    )
-                }
+            buttonCancel.setOnClickListener {
+                val intent: Intent?
+                if (viewModelAdd.getSelectionEmpty())
+                    intent = Intent(requireContext(), ListPersonActivity::class.java)
+                else intent = Intent(requireContext(), MainActivity::class.java)
+                startActivity(intent)
                 activity?.finish()
             }
         }

app/src/main/java/cu/iptriana/pesquisavirtual/ui/add_person/AddPersonViewModel.kt

 package cu.iptriana.pesquisavirtual.ui.add_person
 
-import android.content.Context
-import android.widget.Toast
 import androidx.lifecycle.ViewModel
-import cu.iptriana.pesquisavirtual.data.AplicationDB
+import androidx.lifecycle.viewModelScope
 import cu.iptriana.pesquisavirtual.data.Person
-import cu.iptriana.pesquisavirtual.databinding.FragmentAddPersonBinding
-
-class AddPersonViewModel : ViewModel() {
-    suspend fun addPerson(context: Context, person: Person){
-        val db = AplicationDB.getAplicationDB(context)
-        db?.personDao()?.insert(person)
-        Toast.makeText(
-            context,
-            "Registro insertado correctamente",
-            Toast.LENGTH_SHORT
-        ).show()
+import cu.iptriana.pesquisavirtual.data.PersonRepository
+import cu.iptriana.pesquisavirtual.preferences.AppPreferences
+import kotlinx.coroutines.launch
+
+class AddPersonViewModel(
+    private val personRepository: PersonRepository
+    , preferences: AppPreferences
+) : ViewModel() {
+
+    private var personAdded: Person? = null
+    private var selectEmpty:Boolean = preferences.isEmpty()
+
+    fun getSelectionEmpty():Boolean = selectEmpty
+
+
+    fun addPerson(name: String, last_name: String, ci: String, age: Int, male: Boolean) {
+        viewModelScope.launch {
+            personAdded = Person(0, name, last_name, ci, age, isMale(male))
+            val personiId = personRepository.insert(personAdded!!)
+            personAdded!!.id = personiId.toInt()
+        }
     }
 
-    fun isMale(flag: Boolean): String{
-        if(flag)
+    private fun isMale(flag: Boolean): String {
+        if (flag)
             return "Masculino"
         return "Femenino"
     }
 
-    fun clean(binding: FragmentAddPersonBinding) {
-        with(binding) {
-            txtName.setText("")
-            txtLastName.setText("")
-            txtCi.setText("")
-            txtAge.setText("")
-        }
-    }
-
 }
\ No newline at end of file

app/src/main/java/cu/iptriana/pesquisavirtual/ui/change_person/ChangePersonFragment.kt

 package cu.iptriana.pesquisavirtual.ui.change_person
 
+import android.content.Intent
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProvider
-import androidx.lifecycle.lifecycleScope
 import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
+import cu.iptriana.pesquisavirtual.MainActivity
 import cu.iptriana.pesquisavirtual.adapter.PersonAdapter
-import cu.iptriana.pesquisavirtual.adapter.TestAdapter
 import cu.iptriana.pesquisavirtual.data.Person
 import cu.iptriana.pesquisavirtual.databinding.FragmentChangePersonBinding
-import kotlinx.coroutines.launch
+import cu.iptriana.pesquisavirtual.di.Injector
 
 class ChangePersonFragment : Fragment() {
 
-    private lateinit var viewModel: ChangePersonViewModel
-    private lateinit var recycler: RecyclerView
-    private lateinit var adapter: PersonAdapter
-
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        viewModel = ViewModelProvider(this)
-            .get(ChangePersonViewModel::class.java)
+        val viewModel = ViewModelProvider(
+            this,
+            ChangePersonViewModelFactory(
+                Injector.getPersonRepository(requireContext()),
+                Injector.getPreferences(requireContext())
+            )
+        ).get(ChangePersonViewModel::class.java)
         val binding = FragmentChangePersonBinding.inflate(
             LayoutInflater.from(context), container, false)
 
         with(binding){
 
-            recycler = recyclerview
-            recycler.layoutManager = LinearLayoutManager(context)
-            adapter = PersonAdapter(listOf())
+            recyclerview.layoutManager = LinearLayoutManager(context)
+            val adapter = PersonAdapter(listOf())
             adapter.setOnItemClickListener(object : PersonAdapter.OnRecyclerClickListener<Person>{
                 override fun onClick(model: Person) {
-                    viewModel.changePerson(model, root.context)
+                    viewModel.changePerson(model)
+                    startActivity(Intent(requireContext(), MainActivity::class.java))
                     activity!!.finish()
                 }
 
@@ -47,18 +48,13 @@ class ChangePersonFragment : Fragment() {
                 }
 
             })
+            viewModel.allPerson.observe(requireActivity(), Observer {
+                adapter.persons = it
+                recyclerview.adapter = adapter
+            })
         }
         return binding.root
     }
 
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-        var list = listOf<Person>()
-        lifecycleScope.launch {
-            adapter.persons = context?.let { viewModel.actualizar(it) }!!
-            recycler.adapter = adapter
-        }
-    }
-
 
 }
\ No newline at end of file

app/src/main/java/cu/iptriana/pesquisavirtual/ui/change_person/ChangePersonViewModel.kt

 package cu.iptriana.pesquisavirtual.ui.change_person
 
-import android.content.Context
-import android.content.Intent
-import android.content.SharedPreferences
-import androidx.core.content.ContextCompat.startActivity
+import androidx.lifecycle.LiveData
 import androidx.lifecycle.ViewModel
-import cu.iptriana.pesquisavirtual.TestListActivity
-import cu.iptriana.pesquisavirtual.data.AplicationDB
 import cu.iptriana.pesquisavirtual.data.Person
+import cu.iptriana.pesquisavirtual.data.PersonRepository
+import cu.iptriana.pesquisavirtual.preferences.AppPreferences
 
-class ChangePersonViewModel : ViewModel() {
-
-    fun changePerson(model:Person, context: Context){
-        startActivity(context,Intent(context, TestListActivity::class.java), null)
-        val sharedPreferences = context.getSharedPreferences(
-            "MyPrefer", Context.MODE_PRIVATE)
-        val edit: SharedPreferences.Editor = sharedPreferences!!.edit()
-        edit.clear()
-        edit.putInt("id", model.id)
-        edit.apply()
-    }
-
-    suspend fun actualizar(context: Context) : List<Person>{
-        val db: AplicationDB? = AplicationDB.getAplicationDB(context)
-        return db?.personDao()?.getAll()!!
-    }
+class ChangePersonViewModel(
+    personRepository: PersonRepository
+    , private val preferences: AppPreferences
+) : ViewModel() {
+    val allPerson: LiveData<List<Person>> = personRepository.getAll()
 
+    fun changePerson(model: Person) = preferences.changePerson(model)
 }
\ No newline at end of file

app/src/main/java/cu/iptriana/pesquisavirtual/ui/home/HomeFragment.kt

@@ -4,9 +4,7 @@ import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.TextView
 import androidx.fragment.app.Fragment
-import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProvider
 import cu.iptriana.pesquisavirtual.R
 
@@ -21,8 +19,7 @@ class HomeFragment : Fragment() {
     ): View? {
         homeViewModel =
             ViewModelProvider(this).get(HomeViewModel::class.java)
-        val root = inflater.inflate(R.layout.fragment_home, container, false)
 
-        return root
+        return inflater.inflate(R.layout.fragment_home, container, false)
     }
 }
\ No newline at end of file

app/src/main/res/layout/activity_add_user.xml

 <?xml version="1.0" encoding="utf-8"?>
 
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".AddUserActivity">
+    tools:context=".ui.add_person.AddPersonActivity">
 
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="vertical">
-
-        <include layout="@layout/toolbar"/>
-
-        <androidx.constraintlayout.widget.ConstraintLayout
-            android:layout_width="match_parent"
-            android:layout_height="675dp"
-            android:padding="16dp">
-
-            <LinearLayout
-                android:id="@+id/linearLayout"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="16dp"
         android:orientation="vertical"
-                app:layout_constraintEnd_toEndOf="parent"
-                app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toTopOf="parent">
-
-                <com.google.android.material.textfield.TextInputLayout
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent">
-
-                    <com.google.android.material.textfield.TextInputEditText
-                        android:id="@+id/txt_name"
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        android:layout_marginBottom="5dp"
-                        android:background="@color/white"
-                        android:hint="Nombre" />
-
-                </com.google.android.material.textfield.TextInputLayout>
-
-                <com.google.android.material.textfield.TextInputLayout
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent">
-
-                    <com.google.android.material.textfield.TextInputEditText
-                        android:id="@+id/txt_last_name"
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        android:layout_marginBottom="5dp"
-                        android:background="@color/white"
-                        android:hint="Apellidos" />
-                </com.google.android.material.textfield.TextInputLayout>
-
-                <com.google.android.material.textfield.TextInputLayout
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent">
+        tools:ignore="UselessParent">
 
-                    <com.google.android.material.textfield.TextInputEditText
-                        android:id="@+id/txt_ci"
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        android:layout_marginBottom="5dp"
-                        android:background="@color/white"
-                        android:hint="CI"
-                        android:inputType="number"
-                        android:maxLength="11" />
-                </com.google.android.material.textfield.TextInputLayout>
-
-                <com.google.android.material.textfield.TextInputLayout
-                    android:layout_width="match_parent"
-                    android:layout_height="match_parent">
-
-                    <com.google.android.material.textfield.TextInputEditText
-                        android:id="@+id/txt_age"
-                        android:layout_width="match_parent"
-                        android:layout_height="wrap_content"
-                        android:layout_marginBottom="5dp"
-                        android:background="@color/white"
-                        android:hint="Edad"
-                        android:inputType="number"
-                        android:maxLength="3" />
-                </com.google.android.material.textfield.TextInputLayout>
+        <include layout="@layout/toolbar"/>
 
-                <RadioGroup
+        <androidx.fragment.app.FragmentContainerView
+            android:id="@+id/fragment_container_add_person"
+            android:name="cu.iptriana.pesquisavirtual.ui.add_person.AddPersonFragment"
             android:layout_width="match_parent"
-                    android:layout_height="match_parent"
-                    android:layout_marginTop="50dp"
-                    android:orientation="horizontal">
-
-                    <RadioButton
-                        android:id="@+id/radioButton_masculino"
-                        android:layout_width="0dp"
-                        android:layout_height="wrap_content"
-                        android:layout_weight="1"
-                        android:checked="true"
-                        android:text="Masculino" />
-
-                    <RadioButton
-                        android:id="@+id/radioButton_femenino"
-                        android:layout_width="0dp"
-                        android:layout_height="wrap_content"
-                        android:layout_weight="1"
-                        android:text="Femenino" />
-                </RadioGroup>
-            </LinearLayout>
-        </androidx.constraintlayout.widget.ConstraintLayout>
-    </LinearLayout>
-
-    <LinearLayout
-        android:layout_width="335dp"
-        android:layout_height="48dp"
-        android:layout_gravity="bottom|center"
-        android:orientation="horizontal"
-        >
-
-        <Button
-            android:id="@+id/button_cancelar"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:layout_marginRight="5dp"
-            android:layout_weight="1"
-            android:text="Cancelar" />
-
-        <Button
-            android:id="@+id/button_agregar"
-            android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_marginLeft="5dp"
-            android:layout_weight="1"
-            android:text="Agregar" />
+            />
     </LinearLayout>
 
 </FrameLayout>
\ No newline at end of file

app/src/main/res/layout/activity_splash.xml

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".Splash">
+    tools:context=".ui.splash.SplashActivity">
 
     <ImageView
         android:id="@+id/imageView"

app/src/main/res/layout/activity_user.xml

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".User">
+    tools:context=".ui.user.UserActivity">
 
     <androidx.appcompat.widget.LinearLayoutCompat
         android:layout_width="match_parent"
@@ -116,7 +116,11 @@
             </LinearLayout>
         </androidx.cardview.widget.CardView>
 
-        <include layout="@layout/content_main_activity" />
+        <androidx.recyclerview.widget.RecyclerView
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:id="@+id/recyclerview">
+        </androidx.recyclerview.widget.RecyclerView>
 
     </androidx.appcompat.widget.LinearLayoutCompat>
 

app/src/main/res/layout/app_bar_main.xml

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".TestListActivity">
+    tools:context=".MainActivity">
     <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"

app/src/main/res/layout/fragment_add_person.xml

@@ -112,7 +112,7 @@
         android:orientation="horizontal">
 
         <Button
-            android:id="@+id/button_cancelar"
+            android:id="@+id/button_cancel"
             android:layout_height="wrap_content"
             android:layout_marginRight="5dp"
             android:layout_weight="1"
@@ -120,7 +120,7 @@
             android:text="Atras" />
 
         <Button
-            android:id="@+id/button_agregar"
+            android:id="@+id/button_add"
             android:layout_height="wrap_content"
             android:layout_marginLeft="5dp"
             android:layout_weight="1"

app/src/main/res/menu/menu_main.xml

 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
-    tools:context="cu.iptriana.pesquisavirtual.MainActivity">
+    tools:context="cu.iptriana.pesquisavirtual.ui.change_person.ListPersonActivity">
     <item
         android:id="@+id/action_settings"
         android:title="@string/action_settings"

app/src/main/res/navigation/mobile_navigation.xml

@@ -25,13 +25,13 @@
 
     <fragment
         android:id="@+id/nav_diagnosticar"
-        android:name="cu.iptriana.pesquisavirtual.ui.diagnosticar.DiagnosticarFragment"
+        android:name="cu.iptriana.pesquisavirtual.ui.diagnose.DiagnoseFragment"
         android:label="Diagnosticar enfermendad"
         tools:layout="@layout/fragment_diagnosticar" />
 
     <fragment
         android:id="@+id/nav_fatalaidad"
-        android:name="cu.iptriana.pesquisavirtual.ui.fatalidad.FatalidadFragment"
+        android:name="cu.iptriana.pesquisavirtual.ui.fatality.FatalityFragment"
         android:label="Fatalidad"
         tools:layout="@layout/fragment_fatalidad" />
 </navigation>
\ No newline at end of file