From bb9b12ebdf5821d64fd3c406cdfd42a073e8bbc0 Mon Sep 17 00:00:00 2001
From: "d.boldyrev" <d.boldyrev@inpas.ru>
Date: Mon, 7 Jul 2025 10:24:21 +0300
Subject: [PATCH 1/2] =?UTF-8?q?=D0=94=D0=97=20Fragments?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/build.gradle                              |  2 +
 app/src/main/AndroidManifest.xml              |  8 +++
 .../otus/gpb/homework/fragments/Activity1.kt  | 28 ++++++++++
 .../otus/gpb/homework/fragments/Activity2.kt  | 40 +++++++++++++
 .../otus/gpb/homework/fragments/FragmentA.kt  | 47 ++++++++++++++++
 .../otus/gpb/homework/fragments/FragmentAA.kt | 56 +++++++++++++++++++
 .../otus/gpb/homework/fragments/FragmentAB.kt | 47 ++++++++++++++++
 .../otus/gpb/homework/fragments/FragmentBA.kt | 56 +++++++++++++++++++
 .../otus/gpb/homework/fragments/FragmentBB.kt | 43 ++++++++++++++
 .../gpb/homework/fragments/MainActivity.kt    |  8 +++
 .../res/drawable/baseline_arrow_back_24.xml   |  5 ++
 app/src/main/res/layout/activity_1.xml        | 17 ++++++
 app/src/main/res/layout/activity_2.xml        | 28 ++++++++++
 app/src/main/res/layout/activity_main.xml     | 14 ++++-
 app/src/main/res/layout/fragment_a.xml        | 52 +++++++++++++++++
 app/src/main/res/layout/fragment_a_a.xml      | 33 +++++++++++
 app/src/main/res/layout/fragment_a_b.xml      | 24 ++++++++
 app/src/main/res/layout/fragment_b_a.xml      | 34 +++++++++++
 app/src/main/res/layout/fragment_b_b.xml      | 33 +++++++++++
 app/src/main/res/values/strings.xml           |  2 +
 app/src/main/res/values/themes.xml            |  2 +-
 21 files changed, 576 insertions(+), 3 deletions(-)
 create mode 100644 app/src/main/java/otus/gpb/homework/fragments/Activity1.kt
 create mode 100644 app/src/main/java/otus/gpb/homework/fragments/Activity2.kt
 create mode 100644 app/src/main/java/otus/gpb/homework/fragments/FragmentA.kt
 create mode 100644 app/src/main/java/otus/gpb/homework/fragments/FragmentAA.kt
 create mode 100644 app/src/main/java/otus/gpb/homework/fragments/FragmentAB.kt
 create mode 100644 app/src/main/java/otus/gpb/homework/fragments/FragmentBA.kt
 create mode 100644 app/src/main/java/otus/gpb/homework/fragments/FragmentBB.kt
 create mode 100644 app/src/main/res/drawable/baseline_arrow_back_24.xml
 create mode 100644 app/src/main/res/layout/activity_1.xml
 create mode 100644 app/src/main/res/layout/activity_2.xml
 create mode 100644 app/src/main/res/layout/fragment_a.xml
 create mode 100644 app/src/main/res/layout/fragment_a_a.xml
 create mode 100644 app/src/main/res/layout/fragment_a_b.xml
 create mode 100644 app/src/main/res/layout/fragment_b_a.xml
 create mode 100644 app/src/main/res/layout/fragment_b_b.xml

diff --git a/app/build.gradle b/app/build.gradle
index c5cf1b8..87b742e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -42,7 +42,9 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.5.1'
     implementation 'com.google.android.material:material:1.6.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
+    implementation 'androidx.activity:activity:1.8.0'
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.3'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+    implementation 'com.google.android.material:material:1.12.0'
 }
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 9604b34..82cf206 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -12,6 +12,14 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Fragments"
         tools:targetApi="31">
+        <activity
+            android:name=".Activity2"
+            android:exported="false"
+            android:label="Activity2" />
+        <activity
+            android:name=".Activity1"
+            android:exported="false"
+            android:label="Activity1" />
         <activity
             android:name=".MainActivity"
             android:exported="true">
diff --git a/app/src/main/java/otus/gpb/homework/fragments/Activity1.kt b/app/src/main/java/otus/gpb/homework/fragments/Activity1.kt
new file mode 100644
index 0000000..a2020b1
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/fragments/Activity1.kt
@@ -0,0 +1,28 @@
+package otus.gpb.homework.fragments
+
+import android.os.Bundle
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+
+class Activity1 : AppCompatActivity() {
+//    private lateinit var fragmentA: FragmentA
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_1)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+        if (savedInstanceState == null) {
+            supportFragmentManager.beginTransaction()
+                .replace(R.id.fragment_container, FragmentA(), "FragmentA")
+                .addToBackStack(null)
+                .commit()
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/fragments/Activity2.kt b/app/src/main/java/otus/gpb/homework/fragments/Activity2.kt
new file mode 100644
index 0000000..09fd7f2
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/fragments/Activity2.kt
@@ -0,0 +1,40 @@
+package otus.gpb.homework.fragments
+
+import android.content.res.Configuration
+import android.os.Bundle
+import android.view.View
+import android.widget.Button
+import android.widget.LinearLayout
+import androidx.activity.enableEdgeToEdge
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+
+class Activity2 : AppCompatActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
+        setContentView(R.layout.activity_2)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+        if (savedInstanceState == null) {
+            supportFragmentManager.beginTransaction()
+                .replace(R.id.fragment_container, FragmentBA(), "FragmentBA")
+                .commit()
+        }
+        val orientation = resources.configuration.orientation
+        if (orientation == Configuration.ORIENTATION_PORTRAIT) {
+            val fc = findViewById<androidx.fragment.app.FragmentContainerView>(R.id.fragment_container2)
+            fc.visibility = View.GONE
+        } else if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
+            if (savedInstanceState == null) {
+                supportFragmentManager.beginTransaction()
+                    .replace(R.id.fragment_container2, FragmentBB(), "FragmentBB")
+                    .commit()
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/fragments/FragmentA.kt b/app/src/main/java/otus/gpb/homework/fragments/FragmentA.kt
new file mode 100644
index 0000000..4c25846
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/fragments/FragmentA.kt
@@ -0,0 +1,47 @@
+package otus.gpb.homework.fragments
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+
+/**
+ * A simple [Fragment] subclass.
+ * Use the [FragmentA.newInstance] factory method to
+ * create an instance of this fragment.
+ */
+class FragmentA : Fragment() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+    }
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
+                              savedInstanceState: Bundle?): View? {
+
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_a, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        view.findViewById<Button>(R.id.button).setOnClickListener {
+            if (savedInstanceState == null) {
+                val color = ColorGenerator.generateColor()
+                childFragmentManager.beginTransaction()
+                    .replace(R.id.fragment_a_container, FragmentAA.newInstance(color), "FragmentAA")
+                    .addToBackStack(null)
+                    .commit()
+            }
+        }
+        view.findViewById<Button>(R.id.button_back).setOnClickListener {
+            if (childFragmentManager.backStackEntryCount > 0) {
+                childFragmentManager.popBackStack()
+            } else {
+                requireActivity().finish()
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/fragments/FragmentAA.kt b/app/src/main/java/otus/gpb/homework/fragments/FragmentAA.kt
new file mode 100644
index 0000000..84618b3
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/fragments/FragmentAA.kt
@@ -0,0 +1,56 @@
+package otus.gpb.homework.fragments
+
+import android.graphics.Color
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.TextView
+
+private const val ARG_COLOR = "color"
+
+class FragmentAA : Fragment() {
+    private var color: Int? = null
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        arguments?.let {
+            color = it.getInt(ARG_COLOR)
+        }
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_a_a, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        view.findViewById<Button>(R.id.button).setOnClickListener {
+            if (savedInstanceState == null) {
+                val color = ColorGenerator.generateColor()
+                parentFragmentManager.beginTransaction()
+                    .replace(R.id.fragment_a_container, FragmentAB.newInstance(color), "FragmentAB")
+                    .addToBackStack(null)
+                    .commit()
+            }
+        }
+        val v = view.findViewById<androidx.constraintlayout.widget.ConstraintLayout>(R.id.fragment_a_a)
+        if (color != null)
+            v.setBackgroundColor(color!!)
+    }
+
+    companion object {
+        @JvmStatic
+        fun newInstance(color: Int) =
+            FragmentAA().apply {
+                arguments = Bundle().apply {
+                    putInt(ARG_COLOR, color)
+                }
+            }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/fragments/FragmentAB.kt b/app/src/main/java/otus/gpb/homework/fragments/FragmentAB.kt
new file mode 100644
index 0000000..6c0824e
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/fragments/FragmentAB.kt
@@ -0,0 +1,47 @@
+package otus.gpb.homework.fragments
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+
+private const val ARG_COLOR = "color"
+/**
+ * A simple [Fragment] subclass.
+ * Use the [FragmentAB.newInstance] factory method to
+ * create an instance of this fragment.
+ */
+class FragmentAB : Fragment() {
+    private var color: Int? = null
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        arguments?.let {
+            color = it.getInt(ARG_COLOR)
+        }
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_a_b, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        val v = view.findViewById<androidx.constraintlayout.widget.ConstraintLayout>(R.id.fragment_a_b)
+        if (color != null)
+            v.setBackgroundColor(color!!)
+    }
+
+    companion object {
+        @JvmStatic
+        fun newInstance(color: Int) =
+            FragmentAB().apply {
+                arguments = Bundle().apply {
+                    putInt(ARG_COLOR, color)
+                }
+            }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/fragments/FragmentBA.kt b/app/src/main/java/otus/gpb/homework/fragments/FragmentBA.kt
new file mode 100644
index 0000000..20d5e3d
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/fragments/FragmentBA.kt
@@ -0,0 +1,56 @@
+package otus.gpb.homework.fragments
+
+import android.content.Context
+import android.content.res.Configuration
+import android.graphics.Color
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.TextView
+import androidx.core.os.bundleOf
+
+const val RESULT_KEY = "RESULT_KEY"
+const val RESULT_BUNDLE_KEY = "RESULT_BUNDLE_KEY"
+/**
+ * A simple [Fragment] subclass.
+ * Use the [FragmentBA.newInstance] factory method to
+ * create an instance of this fragment.
+ */
+class FragmentBA : Fragment() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_b_a, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        view.findViewById<Button>(R.id.buttonOpenBB).setOnClickListener {
+            if (savedInstanceState == null) {
+                parentFragmentManager.beginTransaction()
+                    .replace(R.id.fragment_container, FragmentBB(), "FragmentBB")
+                    .addToBackStack(null)
+                    .commit()
+            }
+        }
+        parentFragmentManager.setFragmentResultListener(RESULT_KEY, this) { _, bundle ->
+            val color = bundle.getInt(RESULT_BUNDLE_KEY)
+            val v = view.findViewById<androidx.constraintlayout.widget.ConstraintLayout>(R.id.fragmentBA)
+            v.setBackgroundColor(color)
+        }
+        val orientation = resources.configuration.orientation
+        if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
+            val bt = view.findViewById<Button>(R.id.buttonOpenBB)
+            bt.visibility = View.GONE
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/fragments/FragmentBB.kt b/app/src/main/java/otus/gpb/homework/fragments/FragmentBB.kt
new file mode 100644
index 0000000..2a53d29
--- /dev/null
+++ b/app/src/main/java/otus/gpb/homework/fragments/FragmentBB.kt
@@ -0,0 +1,43 @@
+package otus.gpb.homework.fragments
+
+import android.content.res.Configuration
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import androidx.core.os.bundleOf
+
+
+/**
+ * A simple [Fragment] subclass.
+ * Use the [FragmentBB.newInstance] factory method to
+ * create an instance of this fragment.
+ */
+class FragmentBB : Fragment() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_b_b, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        view.findViewById<Button>(R.id.buttonSendColor).setOnClickListener {
+            val color = ColorGenerator.generateColor()
+            parentFragmentManager.setFragmentResult(RESULT_KEY, bundleOf(RESULT_BUNDLE_KEY to color))
+            val orientation = resources.configuration.orientation
+            if (orientation == Configuration.ORIENTATION_PORTRAIT) {
+                parentFragmentManager.popBackStack()
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/otus/gpb/homework/fragments/MainActivity.kt b/app/src/main/java/otus/gpb/homework/fragments/MainActivity.kt
index 5e89c44..5862036 100644
--- a/app/src/main/java/otus/gpb/homework/fragments/MainActivity.kt
+++ b/app/src/main/java/otus/gpb/homework/fragments/MainActivity.kt
@@ -1,6 +1,8 @@
 package otus.gpb.homework.fragments
 
+import android.content.Intent
 import android.os.Bundle
+import android.widget.Button
 import androidx.appcompat.app.AppCompatActivity
 
 class MainActivity : AppCompatActivity() {
@@ -8,5 +10,11 @@ class MainActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+        findViewById<Button>(R.id.button1).setOnClickListener {
+            startActivity(Intent(this, Activity1::class.java))
+        }
+        findViewById<Button>(R.id.button2).setOnClickListener {
+            startActivity(Intent(this, Activity2::class.java))
+        }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/res/drawable/baseline_arrow_back_24.xml b/app/src/main/res/drawable/baseline_arrow_back_24.xml
new file mode 100644
index 0000000..075e95d
--- /dev/null
+++ b/app/src/main/res/drawable/baseline_arrow_back_24.xml
@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:autoMirrored="true" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M20,11H7.83l5.59,-5.59L12,4l-8,8 8,8 1.41,-1.41L7.83,13H20v-2z"/>
+    
+</vector>
diff --git a/app/src/main/res/layout/activity_1.xml b/app/src/main/res/layout/activity_1.xml
new file mode 100644
index 0000000..be4003c
--- /dev/null
+++ b/app/src/main/res/layout/activity_1.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".Activity1">
+
+
+    <androidx.fragment.app.FragmentContainerView
+        android:id="@+id/fragment_container"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_2.xml b/app/src/main/res/layout/activity_2.xml
new file mode 100644
index 0000000..d649794
--- /dev/null
+++ b/app/src/main/res/layout/activity_2.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".Activity1">
+
+    <LinearLayout
+        android:id="@+id/linearLayout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="horizontal">
+        <androidx.fragment.app.FragmentContainerView
+            android:id="@+id/fragment_container"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1"/>
+        <androidx.fragment.app.FragmentContainerView
+            android:id="@+id/fragment_container2"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1"/>
+    </LinearLayout>
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 17eab17..1674a23 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -6,13 +6,23 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
-    <TextView
+
+    <Button
+        android:id="@+id/button1"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="Hello World!"
+        android:layout_marginBottom="30dp"
+        android:text="Start Activity1"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
+    <Button
+        android:id="@+id/button2"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Start Activity2"
+        app:layout_constraintStart_toStartOf="@+id/button1"
+        app:layout_constraintTop_toBottomOf="@+id/button1" />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_a.xml b/app/src/main/res/layout/fragment_a.xml
new file mode 100644
index 0000000..c3421b9
--- /dev/null
+++ b/app/src/main/res/layout/fragment_a.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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=".FragmentA">
+
+    <!-- TODO: Update blank fragment layout -->
+
+    <Button
+        style="?attr/materialIconButtonStyle"
+        android:id="@+id/button_back"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="30dp"
+        app:icon="@drawable/baseline_arrow_back_24"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        />
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="30dp"
+        android:text="FragmentA"
+        app:layout_constraintTop_toBottomOf="@+id/button_back"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="30dp"
+        android:text="Open FragmentAA"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/textView" />
+
+    <androidx.fragment.app.FragmentContainerView
+        android:id="@+id/fragment_a_container"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="30dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/button"/>
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_a_a.xml b/app/src/main/res/layout/fragment_a_a.xml
new file mode 100644
index 0000000..3f1f9ac
--- /dev/null
+++ b/app/src/main/res/layout/fragment_a_a.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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=".FragmentAA"
+    android:id="@+id/fragment_a_a">
+
+    <!-- TODO: Update blank fragment layout -->
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="30dp"
+        android:text="FragmentAA"
+        app:layout_constraintBottom_toTopOf="@+id/button"
+        app:layout_constraintEnd_toEndOf="@+id/button"
+        app:layout_constraintStart_toStartOf="@+id/button" />
+
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Open FragmentAB"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_a_b.xml b/app/src/main/res/layout/fragment_a_b.xml
new file mode 100644
index 0000000..6d438e3
--- /dev/null
+++ b/app/src/main/res/layout/fragment_a_b.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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=".FragmentAB"
+    android:id="@+id/fragment_a_b">
+
+    <!-- TODO: Update blank fragment layout -->
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="30dp"
+        android:text="FragmentAB"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_b_a.xml b/app/src/main/res/layout/fragment_b_a.xml
new file mode 100644
index 0000000..c4c81a3
--- /dev/null
+++ b/app/src/main/res/layout/fragment_b_a.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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"
+    android:id="@+id/fragmentBA"
+    tools:context=".FragmentBA">
+
+    <!-- TODO: Update blank fragment layout -->
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="30dp"
+        android:text="FragmentBA"
+        app:layout_constraintBottom_toTopOf="@+id/buttonOpenBB"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+        android:id="@+id/buttonOpenBB"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Open FragmentBB"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_b_b.xml b/app/src/main/res/layout/fragment_b_b.xml
new file mode 100644
index 0000000..f822548
--- /dev/null
+++ b/app/src/main/res/layout/fragment_b_b.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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=".FragmentBB">
+
+    <!-- TODO: Update blank fragment layout -->
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="30dp"
+        android:text="FragmentBB"
+        app:layout_constraintBottom_toTopOf="@+id/buttonSendColor"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
+    <Button
+        android:id="@+id/buttonSendColor"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Send color"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent" />
+
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 34277aa..69e7f01 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,3 +1,5 @@
 <resources>
     <string name="app_name">Fragments</string>
+    <!-- TODO: Remove or change this placeholder text -->
+    <string name="hello_blank_fragment">Hello blank fragment</string>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 9a64f26..15c1674 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -1,6 +1,6 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Theme.Fragments" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+    <style name="Theme.Fragments" parent="Theme.Material3.DayNight">
         <!-- Primary brand color. -->
         <item name="colorPrimary">@color/purple_500</item>
         <item name="colorPrimaryVariant">@color/purple_700</item>

From e69dadcaac5564f120b0a27f0ec6230ab6d3c01c Mon Sep 17 00:00:00 2001
From: "d.boldyrev" <d.boldyrev@inpas.ru>
Date: Mon, 14 Jul 2025 21:06:17 +0300
Subject: [PATCH 2/2] =?UTF-8?q?=D0=94=D0=BE=D0=B1=D0=B0=D0=B2=D0=BB=D0=B5?=
 =?UTF-8?q?=D0=BD=20=D1=82=D0=B5=D1=81=D1=82=D0=BE=D0=B2=D1=8B=D0=B9=20?=
 =?UTF-8?q?=D1=84=D0=B0=D0=B9=D0=BB?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 test.json | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 test.json

diff --git a/test.json b/test.json
new file mode 100644
index 0000000..8ae1aa4
--- /dev/null
+++ b/test.json
@@ -0,0 +1,69 @@
+{
+  "catalogs": [
+    {
+      "conditions": "Предложения действительны для Москвы, Переславль-Залесского и Костромской области. Информацию об ассортименте товаров, участвующих в акции, уточняйте в магазине. Количество товаров ограничено, не является публичной офертой.",
+      "date_end": "2020-06-12",
+      "date_start": "2020-06-05",
+      "id": "1234",
+      "image": "https://retailer1234.ru/catalogs/1234.jpg",
+      "is_main": true,
+      "offers": [
+        "11111",
+        "22222",
+        "33333"
+      ],
+      "target_regions": [
+        "Россия, Москва",
+        "Россия, Ярославская область, Переславль-Залесский",
+        "Россия, Костромская область, Островский район, село Адищево"
+      ]
+    },
+    {
+      "conditions": "Предложения действительны в магазине по адресу: Владимир, улица Куйбышева, 26К",
+      "date_end": "2020-06-12",
+      "date_start": "2020-06-05",
+      "id": "5678",
+      "image": "https://retailer1234.ru/catalogs/1234.jpg",
+      "is_main": true,
+      "offers": [
+        "22222",
+        "33333"
+      ],
+      "target_shops": [
+        "Владимир, улица Куйбышева, 26К"
+      ]
+    }
+  ],
+  "offers": [
+    {
+      "barcode": "7501031311309",
+      "date_end": "2020-06-10",
+      "date_start": "2020-06-05",
+      "description": "Молоко \"Домик в деревне\" 3,2% 0,93 л",
+      "discount_label": "1+1",
+      "id": "11111",
+      "image": "https://retailer1234.ru/offers/1234567.jpg",
+      "price_is_from": false,
+      "price_new": 50,
+      "price_old": 100
+    },
+    {
+      "barcode": "3113097501031"
+      "description": "Огурцы маринованные \"Дядя Ваня\" 680 г",
+      "id": "22222",
+      "image": "https://retailer1234.ru/offers/5671234.jpg",
+      "price_is_from": false,
+      "price_new": 70,
+      "price_old": 75
+    },
+    {
+      "barcode": "1097501031133",
+      "description": "Жевательная резинка Orbit в ассортименте",
+      "id": "33333",
+      "image": "https://retailer1234.ru/offers/10488.jpg",
+      "price_is_from": true,
+      "price_new": 10
+    }
+  ],
+  "version": 2
+}
\ No newline at end of file