From f05748af6e62e4300a80cf1b3cd5fc977b345853 Mon Sep 17 00:00:00 2001
From: Egor Shklyarevsky <shklyarevskiyeg@bsb.by>
Date: Tue, 19 Nov 2024 12:04:55 +0300
Subject: [PATCH 1/2] =?UTF-8?q?=D0=A0=D0=B5=D0=B0=D0=BB=D0=B8=D0=B7=D0=BE?=
 =?UTF-8?q?=D0=B2=D0=B0=D0=BB=20DI?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/build.gradle                              |  5 ++-
 app/src/main/AndroidManifest.xml              |  4 ++-
 .../main/java/ru/otus/daggerhomework/App.kt   | 12 ++++++-
 .../daggerhomework/ApplicationComponent.kt    | 13 ++++++++
 .../ru/otus/daggerhomework/ColorGenerator.kt  |  6 ++--
 .../otus/daggerhomework/FragmentProducer.kt   | 20 +++++++++--
 .../FragmentProducerComponent.kt              | 23 +++++++++++++
 .../otus/daggerhomework/FragmentReceiver.kt   | 31 ++++++++++++++---
 .../FragmentReceiverComponent.kt              | 23 +++++++++++++
 .../ru/otus/daggerhomework/MainActivity.kt    | 11 +++++++
 .../daggerhomework/MainActivityComponent.kt   | 33 +++++++++++++++++++
 .../otus/daggerhomework/ViewModelProducer.kt  | 10 ++++--
 .../otus/daggerhomework/ViewModelReceiver.kt  | 12 +++++--
 app/src/main/res/layout/activity_main.xml     | 15 ++-------
 14 files changed, 187 insertions(+), 31 deletions(-)
 create mode 100644 app/src/main/java/ru/otus/daggerhomework/FragmentProducerComponent.kt
 create mode 100644 app/src/main/java/ru/otus/daggerhomework/FragmentReceiverComponent.kt
 create mode 100644 app/src/main/java/ru/otus/daggerhomework/MainActivityComponent.kt

diff --git a/app/build.gradle b/app/build.gradle
index 705d0941..db7dd529 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -33,7 +33,10 @@ android {
 }
 
 dependencies {
-    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib:1.6.0"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.6.0"  // For coroutines
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.6.0"  // For Android
+    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.2.0'
     implementation 'androidx.core:core-ktx:1.6.0'
     implementation 'androidx.appcompat:appcompat:1.3.1'
     implementation 'com.google.android.material:material:1.4.0'
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index fe328c68..89276e20 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -4,13 +4,15 @@
     package="ru.otus.daggerhomework">
 
     <application
+        android:name=".App"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.DaggerHomework">
-        <activity android:name=".MainActivity">
+        <activity android:name=".MainActivity"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
diff --git a/app/src/main/java/ru/otus/daggerhomework/App.kt b/app/src/main/java/ru/otus/daggerhomework/App.kt
index de363626..4c99db42 100644
--- a/app/src/main/java/ru/otus/daggerhomework/App.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/App.kt
@@ -2,5 +2,15 @@ package ru.otus.daggerhomework
 
 import android.app.Application
 
-class App :Application() {
+class App : Application() {
+
+    private lateinit var component: ApplicationComponent
+
+    override fun onCreate() {
+        super.onCreate()
+
+        component = DaggerApplicationComponent.factory().create(this)
+    }
+
+    fun getAppComponent(): ApplicationComponent = component
 }
\ No newline at end of file
diff --git a/app/src/main/java/ru/otus/daggerhomework/ApplicationComponent.kt b/app/src/main/java/ru/otus/daggerhomework/ApplicationComponent.kt
index fc47f256..f7b6f3c9 100644
--- a/app/src/main/java/ru/otus/daggerhomework/ApplicationComponent.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/ApplicationComponent.kt
@@ -1,4 +1,17 @@
 package ru.otus.daggerhomework
 
+import android.app.Application
+import dagger.BindsInstance
+import dagger.Component
+
+@Component
 interface ApplicationComponent {
+
+    fun provideApplication(): Application
+
+    @Component.Factory
+    interface Factory {
+
+        fun create(@BindsInstance application: Application): ApplicationComponent
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/ru/otus/daggerhomework/ColorGenerator.kt b/app/src/main/java/ru/otus/daggerhomework/ColorGenerator.kt
index a9e25a27..b1d9fdd9 100644
--- a/app/src/main/java/ru/otus/daggerhomework/ColorGenerator.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/ColorGenerator.kt
@@ -2,8 +2,8 @@ package ru.otus.daggerhomework
 
 import android.graphics.Color
 import androidx.annotation.ColorInt
-import androidx.annotation.ColorRes
-import java.util.*
+import java.util.Random
+import javax.inject.Inject
 
 interface ColorGenerator {
 
@@ -11,7 +11,7 @@ interface ColorGenerator {
     fun generateColor(): Int
 }
 
-class ColorGeneratorImpl : ColorGenerator {
+class ColorGeneratorImpl @Inject constructor(): ColorGenerator {
 
     override fun generateColor(): Int {
         val rnd = Random()
diff --git a/app/src/main/java/ru/otus/daggerhomework/FragmentProducer.kt b/app/src/main/java/ru/otus/daggerhomework/FragmentProducer.kt
index 00dd10dc..ce15076c 100644
--- a/app/src/main/java/ru/otus/daggerhomework/FragmentProducer.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/FragmentProducer.kt
@@ -1,26 +1,42 @@
 package ru.otus.daggerhomework
 
+import android.app.Application
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.Button
 import androidx.fragment.app.Fragment
+import javax.inject.Inject
 
 class FragmentProducer : Fragment() {
 
+    @Inject
+    lateinit var application: Application
+
+    @Inject
+    lateinit var viewModelProducer: ViewModelProducer
+
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        return inflater.inflate(R.layout.fragment_a, container, true)
+        return inflater.inflate(R.layout.fragment_a, container, false)
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
+
+        DaggerFragmentProducerComponent
+            .builder()
+            .applicationComponent((requireActivity().application as App).getAppComponent())
+            .mainActivityComponent((requireActivity() as MainActivity).getComponent())
+            .build()
+            .inject(this)
+
         view.findViewById<Button>(R.id.button).setOnClickListener {
-            //отправить результат через livedata в другой фрагмент
+            viewModelProducer.generateColor()
         }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/ru/otus/daggerhomework/FragmentProducerComponent.kt b/app/src/main/java/ru/otus/daggerhomework/FragmentProducerComponent.kt
new file mode 100644
index 00000000..f0a89f3b
--- /dev/null
+++ b/app/src/main/java/ru/otus/daggerhomework/FragmentProducerComponent.kt
@@ -0,0 +1,23 @@
+package ru.otus.daggerhomework
+
+import android.content.Context
+import dagger.*
+import kotlinx.coroutines.flow.MutableStateFlow
+
+@Component(
+    modules = [ViewModelProducerModule::class],
+    dependencies = [ApplicationComponent::class, MainActivityComponent::class]
+)
+interface FragmentProducerComponent {
+
+    fun inject(fragmentProducer: FragmentProducer)
+}
+
+@Module
+object ViewModelProducerModule {
+
+    @Provides
+    fun provide(colorGenerator: ColorGenerator, context: Context, flow: MutableStateFlow<Int>): ViewModelProducer {
+        return ViewModelProducer(colorGenerator, context, flow)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/ru/otus/daggerhomework/FragmentReceiver.kt b/app/src/main/java/ru/otus/daggerhomework/FragmentReceiver.kt
index e6a3d9af..944b7950 100644
--- a/app/src/main/java/ru/otus/daggerhomework/FragmentReceiver.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/FragmentReceiver.kt
@@ -1,15 +1,22 @@
 package ru.otus.daggerhomework
 
+import android.app.Application
 import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.Button
+import android.view.*
 import androidx.annotation.ColorInt
 import androidx.fragment.app.Fragment
+import androidx.lifecycle.*
+import kotlinx.coroutines.launch
+import javax.inject.Inject
 
 class FragmentReceiver : Fragment() {
 
+    @Inject
+    lateinit var application: Application
+
+    @Inject
+    lateinit var viewModelReceiver: ViewModelReceiver
+
     private lateinit var frame: View
 
     override fun onCreateView(
@@ -17,12 +24,26 @@ class FragmentReceiver : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        return inflater.inflate(R.layout.fragment_b, container, true)
+        return inflater.inflate(R.layout.fragment_b, container, false)
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
+
+        DaggerFragmentReceiverComponent
+            .builder()
+            .applicationComponent((requireActivity().application as App).getAppComponent())
+            .mainActivityComponent((requireActivity() as MainActivity).getComponent())
+            .build()
+            .inject(this)
+
         frame = view.findViewById(R.id.frame)
+
+        lifecycleScope.launch {
+            viewModelReceiver.observeColors().collect { color ->
+                color.takeIf { it != -1 }?.let(::populateColor)
+            }
+        }
     }
 
     fun populateColor(@ColorInt color: Int) {
diff --git a/app/src/main/java/ru/otus/daggerhomework/FragmentReceiverComponent.kt b/app/src/main/java/ru/otus/daggerhomework/FragmentReceiverComponent.kt
new file mode 100644
index 00000000..5fb509c2
--- /dev/null
+++ b/app/src/main/java/ru/otus/daggerhomework/FragmentReceiverComponent.kt
@@ -0,0 +1,23 @@
+package ru.otus.daggerhomework
+
+import android.app.Application
+import dagger.*
+import kotlinx.coroutines.flow.MutableStateFlow
+
+@Component(
+    modules = [ViewModelReceiverModule::class],
+    dependencies = [ApplicationComponent::class, MainActivityComponent::class]
+)
+interface FragmentReceiverComponent {
+
+    fun inject(fragmentReceiver: FragmentReceiver)
+}
+
+@Module
+object ViewModelReceiverModule {
+
+    @Provides
+    fun provide(context: Application, flow: MutableStateFlow<Int>): ViewModelReceiver {
+        return ViewModelReceiver(context, flow)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/ru/otus/daggerhomework/MainActivity.kt b/app/src/main/java/ru/otus/daggerhomework/MainActivity.kt
index 1b85e946..21ee3eda 100644
--- a/app/src/main/java/ru/otus/daggerhomework/MainActivity.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/MainActivity.kt
@@ -2,11 +2,22 @@ package ru.otus.daggerhomework
 
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import kotlinx.coroutines.flow.*
 
 class MainActivity : AppCompatActivity() {
 
+    private lateinit var mainActivityComponent: MainActivityComponent
+    private val flow: MutableStateFlow<Int> = MutableStateFlow(-1)
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+
+        mainActivityComponent = DaggerMainActivityComponent.factory().create(this, flow)
+
+        supportFragmentManager.beginTransaction().add(R.id.container, FragmentReceiver()).commit()
+        supportFragmentManager.beginTransaction().add(R.id.container, FragmentProducer()).commit()
     }
+
+    fun getComponent(): MainActivityComponent = mainActivityComponent
 }
\ No newline at end of file
diff --git a/app/src/main/java/ru/otus/daggerhomework/MainActivityComponent.kt b/app/src/main/java/ru/otus/daggerhomework/MainActivityComponent.kt
new file mode 100644
index 00000000..816359c8
--- /dev/null
+++ b/app/src/main/java/ru/otus/daggerhomework/MainActivityComponent.kt
@@ -0,0 +1,33 @@
+package ru.otus.daggerhomework
+
+import android.content.Context
+import dagger.*
+import kotlinx.coroutines.flow.MutableStateFlow
+
+@Component(modules = [ColorGeneratorModule::class])
+interface MainActivityComponent {
+
+    fun provideContext(): Context
+
+    fun provideFlow(): MutableStateFlow<Int>
+
+    fun provideColorGenerator(): ColorGenerator
+
+    @Component.Factory
+    interface Factory {
+
+        fun create(
+            @BindsInstance context: Context,
+            @BindsInstance flow: MutableStateFlow<Int>
+        ): MainActivityComponent
+    }
+}
+
+@Module
+object ColorGeneratorModule {
+
+    @Provides
+    fun provide(colorGeneratorImpl: ColorGeneratorImpl): ColorGenerator {
+        return colorGeneratorImpl
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/ru/otus/daggerhomework/ViewModelProducer.kt b/app/src/main/java/ru/otus/daggerhomework/ViewModelProducer.kt
index bc035089..8747d6c2 100644
--- a/app/src/main/java/ru/otus/daggerhomework/ViewModelProducer.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/ViewModelProducer.kt
@@ -3,14 +3,20 @@ package ru.otus.daggerhomework
 import android.content.Context
 import android.widget.Toast
 import androidx.fragment.app.FragmentActivity
+import kotlinx.coroutines.flow.*
+import javax.inject.Inject
 
-class ViewModelProducer(
+class ViewModelProducer @Inject constructor(
     private val colorGenerator: ColorGenerator,
-    private val context: Context
+    private val context: Context,
+    private val flow: MutableStateFlow<Int>
 ) {
 
     fun generateColor() {
         if (context !is FragmentActivity) throw RuntimeException("Здесь нужен контекст активити")
+
+        flow.value = colorGenerator.generateColor()
+
         Toast.makeText(context, "Color sent", Toast.LENGTH_LONG).show()
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/ru/otus/daggerhomework/ViewModelReceiver.kt b/app/src/main/java/ru/otus/daggerhomework/ViewModelReceiver.kt
index 8a3a5ead..f4130570 100644
--- a/app/src/main/java/ru/otus/daggerhomework/ViewModelReceiver.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/ViewModelReceiver.kt
@@ -3,13 +3,19 @@ package ru.otus.daggerhomework
 import android.app.Application
 import android.content.Context
 import android.widget.Toast
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
+import javax.inject.Inject
 
-class ViewModelReceiver(
-    private val context: Context
+class ViewModelReceiver @Inject constructor(
+    private val context: Context,
+    private val colorFlow: MutableStateFlow<Int>
 ) {
 
-    fun observeColors() {
+    fun observeColors(): Flow<Int> {
         if (context !is Application) throw RuntimeException("Здесь нужен контекст апликейшена")
         Toast.makeText(context, "Color received", Toast.LENGTH_LONG).show()
+
+        return colorFlow
     }
 }
\ 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 79ae6993..698ed2e1 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,19 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.constraintlayout.widget.ConstraintLayout
+    android:id="@+id/container"
     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=".MainActivity">
-
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintRight_toRightOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
+    tools:context=".MainActivity" />
\ No newline at end of file

From 64a8db1ab3302c651d2d86adceb15f19d124236a Mon Sep 17 00:00:00 2001
From: Egor Shklyarevsky <shklyarevskiyeg@bsb.by>
Date: Thu, 28 Nov 2024 12:00:32 +0300
Subject: [PATCH 2/2] =?UTF-8?q?-=20=D0=BF=D1=80=D0=B0=D0=B2=D0=BA=D0=B8=20?=
 =?UTF-8?q?=D0=BF=D0=BE=D1=81=D0=BB=D0=B5=20=D1=80=D0=B5=D0=B2=D1=8C=D1=8E?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../otus/daggerhomework/FragmentProducer.kt   |  4 ----
 .../otus/daggerhomework/FragmentReceiver.kt   |  4 ----
 .../daggerhomework/MainActivityComponent.kt   | 22 +++++++++++++------
 .../otus/daggerhomework/ViewModelReceiver.kt  |  5 ++---
 4 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/app/src/main/java/ru/otus/daggerhomework/FragmentProducer.kt b/app/src/main/java/ru/otus/daggerhomework/FragmentProducer.kt
index ce15076c..61dc804e 100644
--- a/app/src/main/java/ru/otus/daggerhomework/FragmentProducer.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/FragmentProducer.kt
@@ -1,6 +1,5 @@
 package ru.otus.daggerhomework
 
-import android.app.Application
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -11,9 +10,6 @@ import javax.inject.Inject
 
 class FragmentProducer : Fragment() {
 
-    @Inject
-    lateinit var application: Application
-
     @Inject
     lateinit var viewModelProducer: ViewModelProducer
 
diff --git a/app/src/main/java/ru/otus/daggerhomework/FragmentReceiver.kt b/app/src/main/java/ru/otus/daggerhomework/FragmentReceiver.kt
index 944b7950..37daff0f 100644
--- a/app/src/main/java/ru/otus/daggerhomework/FragmentReceiver.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/FragmentReceiver.kt
@@ -1,6 +1,5 @@
 package ru.otus.daggerhomework
 
-import android.app.Application
 import android.os.Bundle
 import android.view.*
 import androidx.annotation.ColorInt
@@ -11,9 +10,6 @@ import javax.inject.Inject
 
 class FragmentReceiver : Fragment() {
 
-    @Inject
-    lateinit var application: Application
-
     @Inject
     lateinit var viewModelReceiver: ViewModelReceiver
 
diff --git a/app/src/main/java/ru/otus/daggerhomework/MainActivityComponent.kt b/app/src/main/java/ru/otus/daggerhomework/MainActivityComponent.kt
index 816359c8..5c846eb6 100644
--- a/app/src/main/java/ru/otus/daggerhomework/MainActivityComponent.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/MainActivityComponent.kt
@@ -3,13 +3,16 @@ package ru.otus.daggerhomework
 import android.content.Context
 import dagger.*
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
 
-@Component(modules = [ColorGeneratorModule::class])
+@Component(modules = [ColorGeneratorModule::class, StateFlowModule::class])
 interface MainActivityComponent {
 
     fun provideContext(): Context
 
-    fun provideFlow(): MutableStateFlow<Int>
+    fun provideFlow(): StateFlow<Int>
+
+    fun provideMutableFlow(): MutableStateFlow<Int>
 
     fun provideColorGenerator(): ColorGenerator
 
@@ -24,10 +27,15 @@ interface MainActivityComponent {
 }
 
 @Module
-object ColorGeneratorModule {
+interface ColorGeneratorModule {
 
-    @Provides
-    fun provide(colorGeneratorImpl: ColorGeneratorImpl): ColorGenerator {
-        return colorGeneratorImpl
-    }
+    @Binds
+    fun bindColorGenerator(colorGeneratorImpl: ColorGeneratorImpl): ColorGenerator
+}
+
+@Module
+interface StateFlowModule {
+
+    @Binds
+    fun bindStateFlow(mutableStateFlow: MutableStateFlow<Int>): StateFlow<Int>
 }
\ No newline at end of file
diff --git a/app/src/main/java/ru/otus/daggerhomework/ViewModelReceiver.kt b/app/src/main/java/ru/otus/daggerhomework/ViewModelReceiver.kt
index f4130570..7674dd8d 100644
--- a/app/src/main/java/ru/otus/daggerhomework/ViewModelReceiver.kt
+++ b/app/src/main/java/ru/otus/daggerhomework/ViewModelReceiver.kt
@@ -3,13 +3,12 @@ package ru.otus.daggerhomework
 import android.app.Application
 import android.content.Context
 import android.widget.Toast
-import kotlinx.coroutines.flow.Flow
-import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.*
 import javax.inject.Inject
 
 class ViewModelReceiver @Inject constructor(
     private val context: Context,
-    private val colorFlow: MutableStateFlow<Int>
+    private val colorFlow: StateFlow<Int>
 ) {
 
     fun observeColors(): Flow<Int> {