diff --git a/labs/Lab5_LifecycleAware/.gitignore b/labs/Lab5_LifecycleAware/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..603b14077394cd2294ac6922fe619669630ef3ab
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/.gitignore
@@ -0,0 +1,14 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
diff --git a/labs/Lab5_LifecycleAware/.idea/.name b/labs/Lab5_LifecycleAware/.idea/.name
new file mode 100644
index 0000000000000000000000000000000000000000..3e9bb533aca3adbf9148133ea71c656556632992
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/.idea/.name
@@ -0,0 +1 @@
+Lab5_lifecycle_aware
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/.idea/codeStyles/Project.xml b/labs/Lab5_LifecycleAware/.idea/codeStyles/Project.xml
new file mode 100644
index 0000000000000000000000000000000000000000..3cc336b9349299395940823dfc3e3725bc394c07
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/.idea/codeStyles/Project.xml
@@ -0,0 +1,138 @@
+<component name="ProjectCodeStyleConfiguration">
+ <code_scheme name="Project" version="173">
+ <JetCodeStyleSettings>
+ <option name="PACKAGES_TO_USE_STAR_IMPORTS">
+ <value>
+ <package name="java.util" alias="false" withSubpackages="false" />
+ <package name="kotlinx.android.synthetic" alias="false" withSubpackages="true" />
+ <package name="io.ktor" alias="false" withSubpackages="true" />
+ </value>
+ </option>
+ <option name="PACKAGES_IMPORT_LAYOUT">
+ <value>
+ <package name="" alias="false" withSubpackages="true" />
+ <package name="java" alias="false" withSubpackages="true" />
+ <package name="javax" alias="false" withSubpackages="true" />
+ <package name="kotlin" alias="false" withSubpackages="true" />
+ <package name="" alias="true" withSubpackages="true" />
+ </value>
+ </option>
+ <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+ </JetCodeStyleSettings>
+ <codeStyleSettings language="XML">
+ <indentOptions>
+ <option name="CONTINUATION_INDENT_SIZE" value="4" />
+ </indentOptions>
+ <arrangement>
+ <rules>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>xmlns:android</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>xmlns:.*</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ <order>BY_NAME</order>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*:id</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*:name</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>name</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>style</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>^$</XML_NAMESPACE>
+ </AND>
+ </match>
+ <order>BY_NAME</order>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+ </AND>
+ </match>
+ <order>ANDROID_ATTRIBUTE_ORDER</order>
+ </rule>
+ </section>
+ <section>
+ <rule>
+ <match>
+ <AND>
+ <NAME>.*</NAME>
+ <XML_ATTRIBUTE />
+ <XML_NAMESPACE>.*</XML_NAMESPACE>
+ </AND>
+ </match>
+ <order>BY_NAME</order>
+ </rule>
+ </section>
+ </rules>
+ </arrangement>
+ </codeStyleSettings>
+ <codeStyleSettings language="kotlin">
+ <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+ </codeStyleSettings>
+ </code_scheme>
+</component>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/.idea/codeStyles/codeStyleConfig.xml b/labs/Lab5_LifecycleAware/.idea/codeStyles/codeStyleConfig.xml
new file mode 100644
index 0000000000000000000000000000000000000000..79ee123c2b23e069e35ed634d687e17f731cc702
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/.idea/codeStyles/codeStyleConfig.xml
@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+ <state>
+ <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+ </state>
+</component>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/.idea/gradle.xml b/labs/Lab5_LifecycleAware/.idea/gradle.xml
new file mode 100644
index 0000000000000000000000000000000000000000..5cd135a064522bbb757161b1eee5a7d65de1989e
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/.idea/gradle.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+ <component name="GradleMigrationSettings" migrationVersion="1" />
+ <component name="GradleSettings">
+ <option name="linkedExternalProjectsSettings">
+ <GradleProjectSettings>
+ <option name="testRunner" value="PLATFORM" />
+ <option name="distributionType" value="DEFAULT_WRAPPED" />
+ <option name="externalProjectPath" value="$PROJECT_DIR$" />
+ <option name="modules">
+ <set>
+ <option value="$PROJECT_DIR$" />
+ <option value="$PROJECT_DIR$/app" />
+ </set>
+ </option>
+ <option name="resolveModulePerSourceSet" value="false" />
+ </GradleProjectSettings>
+ </option>
+ </component>
+</project>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/.idea/jarRepositories.xml b/labs/Lab5_LifecycleAware/.idea/jarRepositories.xml
new file mode 100644
index 0000000000000000000000000000000000000000..a5f05cd8c87d4a72b0242026524cb32639fca7f0
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/.idea/jarRepositories.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+ <component name="RemoteRepositoriesConfiguration">
+ <remote-repository>
+ <option name="id" value="central" />
+ <option name="name" value="Maven Central repository" />
+ <option name="url" value="https://repo1.maven.org/maven2" />
+ </remote-repository>
+ <remote-repository>
+ <option name="id" value="jboss.community" />
+ <option name="name" value="JBoss Community repository" />
+ <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+ </remote-repository>
+ <remote-repository>
+ <option name="id" value="BintrayJCenter" />
+ <option name="name" value="BintrayJCenter" />
+ <option name="url" value="https://jcenter.bintray.com/" />
+ </remote-repository>
+ <remote-repository>
+ <option name="id" value="Google" />
+ <option name="name" value="Google" />
+ <option name="url" value="https://dl.google.com/dl/android/maven2/" />
+ </remote-repository>
+ </component>
+</project>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/.idea/misc.xml b/labs/Lab5_LifecycleAware/.idea/misc.xml
new file mode 100644
index 0000000000000000000000000000000000000000..af0bbdde167a7e3a13b218dd83829c8b6a50aead
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/.idea/misc.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+ <component name="CMakeSettings">
+ <configurations>
+ <configuration PROFILE_NAME="Debug" CONFIG_NAME="Debug" />
+ </configurations>
+ </component>
+ <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+ <output url="file://$PROJECT_DIR$/build/classes" />
+ </component>
+ <component name="ProjectType">
+ <option name="id" value="Android" />
+ </component>
+</project>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/.idea/runConfigurations.xml b/labs/Lab5_LifecycleAware/.idea/runConfigurations.xml
new file mode 100644
index 0000000000000000000000000000000000000000..7f68460d8b38ac04e3a3224d7c79ef719b1991a9
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/.idea/runConfigurations.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+ <component name="RunConfigurationProducerService">
+ <option name="ignoredProducers">
+ <set>
+ <option value="org.jetbrains.plugins.gradle.execution.test.runner.AllInPackageGradleConfigurationProducer" />
+ <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestClassGradleConfigurationProducer" />
+ <option value="org.jetbrains.plugins.gradle.execution.test.runner.TestMethodGradleConfigurationProducer" />
+ </set>
+ </option>
+ </component>
+</project>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/.idea/vcs.xml b/labs/Lab5_LifecycleAware/.idea/vcs.xml
new file mode 100644
index 0000000000000000000000000000000000000000..6c0b8635858dc7ad44b93df54b762707ce49eefc
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+ <component name="VcsDirectoryMappings">
+ <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+ </component>
+</project>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/Lab-LifecycleAwareComponents.pdf b/labs/Lab5_LifecycleAware/Lab-LifecycleAwareComponents.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..5f2ce5920a4ecaf472088c7a4a283ac9546357cb
Binary files /dev/null and b/labs/Lab5_LifecycleAware/Lab-LifecycleAwareComponents.pdf differ
diff --git a/labs/Lab5_LifecycleAware/LifeCycleAware.mp4 b/labs/Lab5_LifecycleAware/LifeCycleAware.mp4
new file mode 100644
index 0000000000000000000000000000000000000000..043e58ec2a5aadf06601460791cc946c53026856
Binary files /dev/null and b/labs/Lab5_LifecycleAware/LifeCycleAware.mp4 differ
diff --git a/labs/Lab5_LifecycleAware/app/.gitignore b/labs/Lab5_LifecycleAware/app/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..796b96d1c402326528b4ba3c12ee9d92d0e212e9
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/labs/Lab5_LifecycleAware/app/build.gradle b/labs/Lab5_LifecycleAware/app/build.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..941822baa248fbdd1633718579529b633fb50c78
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/build.gradle
@@ -0,0 +1,36 @@
+apply plugin: 'com.android.application'
+
+apply plugin: 'kotlin-android'
+
+apply plugin: 'kotlin-android-extensions'
+
+android {
+ compileSdkVersion 29
+ defaultConfig {
+ applicationId "course.labs.lab5_lifecycle_aware"
+ minSdkVersion 26
+ targetSdkVersion 29
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+ }
+ }
+}
+
+dependencies {
+ implementation fileTree(dir: 'libs', include: ['*.jar'])
+ implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+ implementation 'androidx.appcompat:appcompat:1.1.0'
+ implementation 'androidx.core:core-ktx:1.1.0'
+ implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'androidx.test:runner:1.2.0'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+ androidTestImplementation 'androidx.test:rules:1.1.0'
+ implementation 'androidx.lifecycle:lifecycle-extensions:2.1.0'
+}
diff --git a/labs/Lab5_LifecycleAware/app/proguard-rules.pro b/labs/Lab5_LifecycleAware/app/proguard-rules.pro
new file mode 100644
index 0000000000000000000000000000000000000000..f1b424510da51fd82143bc74a0a801ae5a1e2fcd
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/labs/Lab5_LifecycleAware/app/src/androidTest/java/course/labs/lab5_lifecycle_aware/WithRotationTest.kt b/labs/Lab5_LifecycleAware/app/src/androidTest/java/course/labs/lab5_lifecycle_aware/WithRotationTest.kt
new file mode 100644
index 0000000000000000000000000000000000000000..0170d311d832c2cb2c345cfc63339039bf7091b5
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/androidTest/java/course/labs/lab5_lifecycle_aware/WithRotationTest.kt
@@ -0,0 +1,76 @@
+package course.labs.lab5_lifecycle_aware
+
+import android.content.pm.ActivityInfo
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.ViewAction
+import androidx.test.espresso.action.ViewActions.click
+import androidx.test.espresso.assertion.ViewAssertions.matches
+import androidx.test.espresso.matcher.ViewMatchers.*
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import androidx.test.rule.ActivityTestRule
+import androidx.test.runner.AndroidJUnit4
+
+@RunWith(AndroidJUnit4::class)
+class WithRotationTest {
+ @Rule
+ @JvmField
+ var activityTestRule = ActivityTestRule(LifecycleMainActivity::class.java)
+
+ @Test
+ fun checkRotation_1() {
+ onView(withId(R.id.PrButton)).perform(click())
+ onView(withText("Portrait-1")).check(matches(isDisplayed()))
+ Thread.sleep(2000)
+ activityTestRule.activity.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
+ Thread.sleep(2000)
+ for(i in 1..3){
+ onView(withId(R.id.PrButton)).perform(click())
+ }
+ activityTestRule.activity.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT
+ onView(withText("Portrait-1")).check(matches(isDisplayed()))
+ onView(withText("Landscape-3")).check(matches(isDisplayed()))
+ //onView(withText("Reverse Portrait-0")).check(matches(isDisplayed()))
+ Thread.sleep(1000)
+
+
+ }
+ @Test
+ fun checkRotation_2() {
+ var nClicks_1 = (1..4).random()
+ for(i in 1..nClicks_1) {
+ onView(withId(R.id.PrButton)).perform(click())
+ }
+ onView(withText("Portrait-$nClicks_1")).check(matches(isDisplayed()))
+ Thread.sleep(5000)
+ activityTestRule.activity.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
+ Thread.sleep(2000)
+ var nClicks_2 = (1..4).random()
+ for(i in 1..nClicks_2){
+ onView(withId(R.id.PrButton)).perform(click())
+ }
+ onView(withText("Portrait-$nClicks_1")).check(matches(isDisplayed()))
+ onView(withText("Landscape-$nClicks_2")).check(matches(isDisplayed()))
+ onView(withId(R.id.ResButton)).perform(click())
+ onView(withText("Landscape-0")).check(matches(isDisplayed()))
+ activityTestRule.activity.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
+ onView(withText("Portrait-$nClicks_1")).check(matches(isDisplayed()))
+ onView(withText("Landscape-0")).check(matches(isDisplayed()))
+ onView(withText("Portrait-0")).check(matches(isDisplayed()))
+ Thread.sleep(2000)
+ activityTestRule.activity.requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE
+ nClicks_2 = (1..4).random()
+ for(i in 1..nClicks_2){
+ onView(withId(R.id.PrButton)).perform(click())
+ }
+ onView(withText("Portrait-$nClicks_1")).check(matches(isDisplayed()))
+ onView(withText("Landscape-0")).check(matches(isDisplayed()))
+ onView(withText("Portrait-0")).check(matches(isDisplayed()))
+ onView(withText("Reverse Landscape-$nClicks_2")).check(matches(isDisplayed()))
+ Thread.sleep(2000)
+
+ }
+}
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/androidTest/java/course/labs/lab5_lifecycle_aware/WithoutRotationTest.kt b/labs/Lab5_LifecycleAware/app/src/androidTest/java/course/labs/lab5_lifecycle_aware/WithoutRotationTest.kt
new file mode 100644
index 0000000000000000000000000000000000000000..6df879d9266b28dc95c6f13f2d83dc759fb280af
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/androidTest/java/course/labs/lab5_lifecycle_aware/WithoutRotationTest.kt
@@ -0,0 +1,50 @@
+package course.labs.lab5_lifecycle_aware
+
+import android.content.pm.ActivityInfo
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.ViewAction
+import androidx.test.espresso.action.ViewActions.click
+import androidx.test.espresso.assertion.ViewAssertions.matches
+import androidx.test.espresso.matcher.ViewMatchers.*
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import androidx.test.rule.ActivityTestRule
+import androidx.test.runner.AndroidJUnit4
+
+@RunWith(AndroidJUnit4::class)
+class WithoutRotationTest {
+ @Rule
+ @JvmField
+ var activityTestRule = ActivityTestRule(LifecycleMainActivity::class.java)
+
+ @Test
+ fun checkCounter() {
+ val nClicks = (1..4).random()
+ for(i in 1..nClicks){
+ onView(withId(R.id.PrButton)).perform(click())
+ }
+ onView(withText("Portrait-$nClicks")).check(matches(isDisplayed()))
+ Thread.sleep(5000)
+
+
+
+ }
+ @Test
+ fun checkReset(){
+ val nClicks = (1..4).random()
+ for(i in 1..nClicks){
+ onView(withId(R.id.PrButton)).perform(click())
+ }
+ onView(withText("Portrait-$nClicks")).check(matches(isDisplayed()))
+ Thread.sleep(2000)
+ onView(withId(R.id.ResButton)).perform(click())
+ onView(withText("Portrait-0")).check(matches(isDisplayed()))
+ }
+ @Test
+ fun checkPageLayout(){
+ onView(withId(R.id.DisplayText)).check(matches(withText("Portrait-0")))
+ }
+}
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/main/AndroidManifest.xml b/labs/Lab5_LifecycleAware/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000000000000000000000000000000000..d703ce4bb49ba90e8980a12db92a89b07a217e83
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/AndroidManifest.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="course.labs.lab5_lifecycle_aware">
+
+ <application
+ 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/AppTheme">
+ <activity android:name=".LifecycleMainActivity">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+ </application>
+
+</manifest>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/ActivityObserver.kt b/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/ActivityObserver.kt
new file mode 100644
index 0000000000000000000000000000000000000000..95efcce9267741ebf1ac4049356a6668ac901b5b
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/ActivityObserver.kt
@@ -0,0 +1,44 @@
+package course.labs.lab5_lifecycle_aware
+import android.util.Log
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleObserver
+import androidx.lifecycle.OnLifecycleEvent
+
+//ToDo:
+class ActivityObserver(private val model: CounterViewModel) : LifecycleObserver{
+ @OnLifecycleEvent(Lifecycle.Event.ON_CREATE)
+ fun onCreateEvent() {
+ Log.i(TAG, "Entered onCreate")
+
+ }
+ @OnLifecycleEvent(Lifecycle.Event.ON_START)
+ fun onStartEvent()
+ {
+ Log.i(TAG, "Entered onStart")
+ }
+ @OnLifecycleEvent(Lifecycle.Event.ON_RESUME)
+ fun onResumeEvent() {
+ Log.i(TAG, "ON_RESUME event")
+ }
+
+ @OnLifecycleEvent(Lifecycle.Event.ON_PAUSE)
+ fun onPauseEvent() {
+ Log.i(TAG, "ON_PAUSE event")
+ }
+
+ @OnLifecycleEvent(Lifecycle.Event.ON_STOP)
+ fun onStopEvent() {
+ Log.i(TAG, "ON_STOP event")
+ }
+
+ @OnLifecycleEvent(Lifecycle.Event.ON_DESTROY)
+ fun onDestroyEvent() {
+ Log.i(TAG, "ON_DESTROY event")
+ }
+
+ companion object
+ {
+ private const val TAG = "Lab-Lifecycle"
+ }
+
+}
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/CounterViewModel.kt b/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/CounterViewModel.kt
new file mode 100644
index 0000000000000000000000000000000000000000..1335c6448277cdeb9dcfa08a99b38e78c2b20255
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/CounterViewModel.kt
@@ -0,0 +1,10 @@
+package course.labs.lab5_lifecycle_aware
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+//ToDo: define your own view model that would be used to store the data when activity is destroyed during rotation
+
+class CounterViewModel : ViewModel() {
+
+
+}
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/HistoryListAdapter.kt b/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/HistoryListAdapter.kt
new file mode 100644
index 0000000000000000000000000000000000000000..32cab16f863b196bd3d78e91dfa2f8d933391947
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/HistoryListAdapter.kt
@@ -0,0 +1,39 @@
+package course.labs.lab5_lifecycle_aware
+import java.util.ArrayList
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.BaseAdapter
+import android.widget.TextView
+
+class HistoryListAdapter (private val mContext: Context) : BaseAdapter()
+{
+ private var history : MutableList<String> = ArrayList()
+ override fun getCount(): Int {
+
+ return history.size
+ }
+
+ fun setHistory(newHistory: MutableList<String>){
+ history = newHistory
+ }
+
+ override fun getItemId(position: Int): Long {
+ return position.toLong()
+ }
+
+ override fun getItem(position: Int): Any? {
+
+ return history[position]
+ }
+ override fun getView(position: Int, convertView: View?, parent: ViewGroup?): View? {
+ // val textView =TextView(mContext)
+ val layoutInflater = LayoutInflater.from(mContext).inflate(R.layout.history_list,parent,false)
+ val txt = layoutInflater.findViewById<TextView>(R.id.Text)
+ txt.text = history[position]
+ //textView.text = history[position]
+ return txt
+ }
+}
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/LifecycleMainActivity.kt b/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/LifecycleMainActivity.kt
new file mode 100644
index 0000000000000000000000000000000000000000..56f3e190dade1557d3b426d01c29f2866a32f6ae
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/java/course/labs/lab5_lifecycle_aware/LifecycleMainActivity.kt
@@ -0,0 +1,26 @@
+package course.labs.lab5_lifecycle_aware
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.widget.Button
+import android.widget.ListView
+import android.view.View
+import android.widget.TextView
+import android.content.Context
+import android.view.WindowManager
+import androidx.lifecycle.ViewModelProviders
+
+class LifecycleMainActivity : AppCompatActivity() {
+ private lateinit var mAdapter: HistoryListAdapter
+ private fun getScreenOrientation(context: Context): String {
+ val orientationList = listOf("Portrait","Landscape","Reverse Portrait","Reverse Landscape")
+ val orientation = (context.getSystemService(Context.WINDOW_SERVICE) as WindowManager).defaultDisplay.rotation
+ return orientationList[orientation]
+ }
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ setContentView(R.layout.activity_main)
+ //ToDo: Implement your own logic to display appropriate text ,increase and reset the counter and populate the history list
+ // Add the Activity observer to preserve the counts till now and add it to the list when the activity is created again
+ }
+}
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/labs/Lab5_LifecycleAware/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000000000000000000000000000000000000..1f6bb290603d7caa16c5fb6f61bbfdc750622f5c
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,34 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:aapt="http://schemas.android.com/aapt"
+ android:width="108dp"
+ android:height="108dp"
+ android:viewportWidth="108"
+ android:viewportHeight="108">
+ <path
+ android:fillType="evenOdd"
+ android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+ android:strokeWidth="1"
+ android:strokeColor="#00000000">
+ <aapt:attr name="android:fillColor">
+ <gradient
+ android:endX="78.5885"
+ android:endY="90.9159"
+ android:startX="48.7653"
+ android:startY="61.0927"
+ android:type="linear">
+ <item
+ android:color="#44000000"
+ android:offset="0.0" />
+ <item
+ android:color="#00000000"
+ android:offset="1.0" />
+ </gradient>
+ </aapt:attr>
+ </path>
+ <path
+ android:fillColor="#FFFFFF"
+ android:fillType="nonZero"
+ android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+ android:strokeWidth="1"
+ android:strokeColor="#00000000" />
+</vector>
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/drawable/ic_launcher_background.xml b/labs/Lab5_LifecycleAware/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000000000000000000000000000000000000..0d025f9bf6b67c63044a36a9ff44fbc69e5c5822
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+ android:width="108dp"
+ android:height="108dp"
+ android:viewportWidth="108"
+ android:viewportHeight="108">
+ <path
+ android:fillColor="#008577"
+ android:pathData="M0,0h108v108h-108z" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M9,0L9,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,0L19,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M29,0L29,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M39,0L39,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M49,0L49,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M59,0L59,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M69,0L69,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M79,0L79,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M89,0L89,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M99,0L99,108"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,9L108,9"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,19L108,19"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,29L108,29"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,39L108,39"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,49L108,49"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,59L108,59"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,69L108,69"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,79L108,79"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,89L108,89"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M0,99L108,99"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,29L89,29"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,39L89,39"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,49L89,49"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,59L89,59"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,69L89,69"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M19,79L89,79"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M29,19L29,89"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M39,19L39,89"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M49,19L49,89"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M59,19L59,89"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M69,19L69,89"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+ <path
+ android:fillColor="#00000000"
+ android:pathData="M79,19L79,89"
+ android:strokeWidth="0.8"
+ android:strokeColor="#33FFFFFF" />
+</vector>
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/layout/activity_main.xml b/labs/Lab5_LifecycleAware/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000000000000000000000000000000000000..ae9525783fa214385182d4364df2640a98c056c5
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout
+ xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:tools="http://schemas.android.com/tools"
+ xmlns:app="http://schemas.android.com/apk/res-auto"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent"
+ tools:context=".LifecycleMainActivity">
+
+ <TextView
+ android:id="@+id/DisplayText"
+ android:textAppearance="@android:style/TextAppearance.Material.Display2"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="Text will come here"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_bias="0.182" />
+
+ <Button
+ android:id="@+id/PrButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="Next"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintHorizontal_bias="0.244"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_bias="0.404" />
+
+ <Button
+ android:id="@+id/ResButton"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="Reset"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintHorizontal_bias="0.804"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_bias="0.404" />
+
+ <ListView
+ android:id="@+id/listview"
+ android:layout_width="match_parent"
+ android:layout_height="0dp"
+ android:layout_centerHorizontal="true"
+ app:layout_constraintTop_toBottomOf="@+id/ResButton"
+ app:layout_constraintBottom_toBottomOf="parent"
+ />
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/layout/history_list.xml b/labs/Lab5_LifecycleAware/app/src/main/res/layout/history_list.xml
new file mode 100644
index 0000000000000000000000000000000000000000..e802a2d7809710cba25099d78cde689e17a23a54
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/res/layout/history_list.xml
@@ -0,0 +1,20 @@
+<?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"
+ android:layout_width="match_parent"
+ android:layout_height="match_parent">
+
+ <TextView
+ android:id="@+id/Text"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:text="P"
+ android:textAppearance="@android:style/TextAppearance.Material.Display1"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintHorizontal_bias="0.469"
+ app:layout_constraintLeft_toLeftOf="parent"
+ app:layout_constraintRight_toRightOf="parent"
+ app:layout_constraintTop_toTopOf="parent"
+ app:layout_constraintVertical_bias="0.114" />
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000000000000000000000000000000000000..eca70cfe52eac1ba66ba280a68ca7be8fcf88a16
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+ <background android:drawable="@drawable/ic_launcher_background" />
+ <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000000000000000000000000000000000000..eca70cfe52eac1ba66ba280a68ca7be8fcf88a16
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+ <background android:drawable="@drawable/ic_launcher_background" />
+ <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-hdpi/ic_launcher.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..898f3ed59ac9f3248734a00e5902736c9367d455
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 0000000000000000000000000000000000000000..dffca3601eba7bf5f409bdd520820e2eb5122c75
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-hdpi/ic_launcher_round.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-mdpi/ic_launcher.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..64ba76f75e9ce021aa3d95c213491f73bcacb597
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100644
index 0000000000000000000000000000000000000000..dae5e082342fcdeee5db8a6e0b27028e2d2808f5
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-mdpi/ic_launcher_round.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..e5ed46597ea8447d91ab1786a34e30f1c26b18bd
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100644
index 0000000000000000000000000000000000000000..14ed0af35023e4f1901cf03487b6c524257b8483
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..b0907cac3bfd8fbfdc46e1108247f0a1055387ec
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000000000000000000000000000000000000..d8ae03154975f397f8ed1b84f2d4bf9783ecfa26
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000000000000000000000000000000000000..2c18de9e66108411737e910f5c1972476f03ddbf
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 0000000000000000000000000000000000000000..beed3cdd2c32af5114a7dc70b9ef5b698eb8797e
Binary files /dev/null and b/labs/Lab5_LifecycleAware/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png differ
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/values/colors.xml b/labs/Lab5_LifecycleAware/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000000000000000000000000000000000000..69b22338c6510250df3b43672635120dbce2fa49
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/res/values/colors.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+ <color name="colorPrimary">#008577</color>
+ <color name="colorPrimaryDark">#00574B</color>
+ <color name="colorAccent">#D81B60</color>
+</resources>
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/values/strings.xml b/labs/Lab5_LifecycleAware/app/src/main/res/values/strings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..2c1b9c6926c80edfeedf69fb606ca873c94b2ec5
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/res/values/strings.xml
@@ -0,0 +1,3 @@
+<resources>
+ <string name="app_name">Lifecycle Aware App</string>
+</resources>
diff --git a/labs/Lab5_LifecycleAware/app/src/main/res/values/styles.xml b/labs/Lab5_LifecycleAware/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000000000000000000000000000000000000..5885930df6d10edf3d6df40d6556297d11f953da
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/app/src/main/res/values/styles.xml
@@ -0,0 +1,11 @@
+<resources>
+
+ <!-- Base application theme. -->
+ <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+ <!-- Customize your theme here. -->
+ <item name="colorPrimary">@color/colorPrimary</item>
+ <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+ <item name="colorAccent">@color/colorAccent</item>
+ </style>
+
+</resources>
diff --git a/labs/Lab5_LifecycleAware/build.gradle b/labs/Lab5_LifecycleAware/build.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..4420c59a885db6e15eecb91eec2fad51561ae89f
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/build.gradle
@@ -0,0 +1,28 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+ ext.kotlin_version = '1.3.41'
+ repositories {
+ google()
+ jcenter()
+
+ }
+ dependencies {
+ classpath 'com.android.tools.build:gradle:3.5.0'
+ classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+ // NOTE: Do not place your application dependencies here; they belong
+ // in the individual module build.gradle files
+ }
+}
+
+allprojects {
+ repositories {
+ google()
+ jcenter()
+
+ }
+}
+
+task clean(type: Delete) {
+ delete rootProject.buildDir
+}
diff --git a/labs/Lab5_LifecycleAware/gradle.properties b/labs/Lab5_LifecycleAware/gradle.properties
new file mode 100644
index 0000000000000000000000000000000000000000..23339e0df69d1fe76df74d7cc6c861fced84e98c
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/gradle.properties
@@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
diff --git a/labs/Lab5_LifecycleAware/gradle/wrapper/gradle-wrapper.jar b/labs/Lab5_LifecycleAware/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000000000000000000000000000000000..f6b961fd5a86aa5fbfe90f707c3138408be7c718
Binary files /dev/null and b/labs/Lab5_LifecycleAware/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/labs/Lab5_LifecycleAware/gradle/wrapper/gradle-wrapper.properties b/labs/Lab5_LifecycleAware/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000000000000000000000000000000000..7fcb97746fcb944692961519500871ca2527d30d
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Tue Oct 01 22:19:32 EDT 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip
diff --git a/labs/Lab5_LifecycleAware/gradlew b/labs/Lab5_LifecycleAware/gradlew
new file mode 100644
index 0000000000000000000000000000000000000000..cccdd3d517fc5249beaefa600691cf150f2fa3e6
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/gradlew
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+## Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+ ls=`ls -ld "$PRG"`
+ link=`expr "$ls" : '.*-> \(.*\)$'`
+ if expr "$link" : '/.*' > /dev/null; then
+ PRG="$link"
+ else
+ PRG=`dirname "$PRG"`"/$link"
+ fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+ echo "$*"
+}
+
+die () {
+ echo
+ echo "$*"
+ echo
+ exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+ CYGWIN* )
+ cygwin=true
+ ;;
+ Darwin* )
+ darwin=true
+ ;;
+ MINGW* )
+ msys=true
+ ;;
+ NONSTOP* )
+ nonstop=true
+ ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+ if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+ # IBM's JDK on AIX uses strange locations for the executables
+ JAVACMD="$JAVA_HOME/jre/sh/java"
+ else
+ JAVACMD="$JAVA_HOME/bin/java"
+ fi
+ if [ ! -x "$JAVACMD" ] ; then
+ die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+ fi
+else
+ JAVACMD="java"
+ which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+ MAX_FD_LIMIT=`ulimit -H -n`
+ if [ $? -eq 0 ] ; then
+ if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+ MAX_FD="$MAX_FD_LIMIT"
+ fi
+ ulimit -n $MAX_FD
+ if [ $? -ne 0 ] ; then
+ warn "Could not set maximum file descriptor limit: $MAX_FD"
+ fi
+ else
+ warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+ fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+ GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+ APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+ CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+ JAVACMD=`cygpath --unix "$JAVACMD"`
+
+ # We build the pattern for arguments to be converted via cygpath
+ ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+ SEP=""
+ for dir in $ROOTDIRSRAW ; do
+ ROOTDIRS="$ROOTDIRS$SEP$dir"
+ SEP="|"
+ done
+ OURCYGPATTERN="(^($ROOTDIRS))"
+ # Add a user-defined pattern to the cygpath arguments
+ if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+ OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+ fi
+ # Now convert the arguments - kludge to limit ourselves to /bin/sh
+ i=0
+ for arg in "$@" ; do
+ CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+ CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
+
+ if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
+ eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+ else
+ eval `echo args$i`="\"$arg\""
+ fi
+ i=$((i+1))
+ done
+ case $i in
+ (0) set -- ;;
+ (1) set -- "$args0" ;;
+ (2) set -- "$args0" "$args1" ;;
+ (3) set -- "$args0" "$args1" "$args2" ;;
+ (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+ (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+ (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+ (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+ (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+ (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+ esac
+fi
+
+# Escape application args
+save () {
+ for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+ echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+ cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/labs/Lab5_LifecycleAware/gradlew.bat b/labs/Lab5_LifecycleAware/gradlew.bat
new file mode 100644
index 0000000000000000000000000000000000000000..f9553162f122c71b34635112e717c3e733b5b212
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/labs/Lab5_LifecycleAware/settings.gradle b/labs/Lab5_LifecycleAware/settings.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..fcbc081ac5a77856ccdf55be6aacce77ea6054a0
--- /dev/null
+++ b/labs/Lab5_LifecycleAware/settings.gradle
@@ -0,0 +1,2 @@
+include ':app'
+rootProject.name='Lab5_lifecycle_aware'