diff --git a/Labs/Lab4_Permissions/Lab-Permissions.pdf b/Labs/Lab4_Permissions/Lab-Permissions.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..94b4c6560d525e80dcc55e498f426bcc9978fa4c
Binary files /dev/null and b/Labs/Lab4_Permissions/Lab-Permissions.pdf differ
diff --git a/Labs/Lab4_Permissions/Lab4Activity_Permissions.mp4 b/Labs/Lab4_Permissions/Lab4Activity_Permissions.mp4
new file mode 100644
index 0000000000000000000000000000000000000000..947cce589b89b4d9892d6b50c9c034730192b23d
Binary files /dev/null and b/Labs/Lab4_Permissions/Lab4Activity_Permissions.mp4 differ
diff --git a/Labs/Lab4_Permissions/app/.gitignore b/Labs/Lab4_Permissions/app/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..42afabfd2abebf31384ca7797186a27a4b7dbee8
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/build.gradle b/Labs/Lab4_Permissions/app/build.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..90ff9b9f13595483d9d099cbf28eb62d91cbb738
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/build.gradle
@@ -0,0 +1,47 @@
+plugins {
+ id 'com.android.application'
+ id 'org.jetbrains.kotlin.android'
+}
+
+android {
+ compileSdk 32
+
+ defaultConfig {
+ applicationId "course.labs.permissionslab"
+ minSdk 23
+ targetSdk 32
+ versionCode 1
+ versionName "1.0"
+
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+ }
+ }
+ compileOptions {
+ sourceCompatibility JavaVersion.VERSION_1_8
+ targetCompatibility JavaVersion.VERSION_1_8
+ }
+ kotlinOptions {
+ jvmTarget = '1.8'
+ }
+
+ buildFeatures {
+ viewBinding = true
+ }
+}
+
+dependencies {
+
+ implementation 'androidx.core:core-ktx:1.7.0'
+ implementation 'androidx.appcompat:appcompat:1.3.0'
+ implementation 'com.google.android.material:material:1.4.0'
+ implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+ testImplementation 'junit:junit:4.13.2'
+ androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/proguard-rules.pro b/Labs/Lab4_Permissions/app/proguard-rules.pro
new file mode 100644
index 0000000000000000000000000000000000000000..481bb434814107eb79d7a30b676d344b0df2f8ce
--- /dev/null
+++ b/Labs/Lab4_Permissions/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
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/AndroidManifest.xml b/Labs/Lab4_Permissions/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000000000000000000000000000000000000..453182aede59345ea0c1748eec9b3f1781217afb
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/AndroidManifest.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ xmlns:tools="http://schemas.android.com/tools"
+ package="course.labs.permissionslab">
+
+ <uses-permission android:name="android.permission.CALL_PHONE"/>
+ <application
+ android:allowBackup="true"
+ android:dataExtractionRules="@xml/data_extraction_rules"
+ android:fullBackupContent="@xml/backup_rules"
+ android:icon="@mipmap/ic_launcher"
+ android:label="@string/app_name"
+ android:roundIcon="@mipmap/ic_launcher_round"
+ android:supportsRtl="true"
+ android:theme="@style/Theme.PermissionsLab"
+ tools:targetApi="31">
+ <activity
+ android:name=".MainActivity"
+ android:exported="true">
+ <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/Lab4_Permissions/app/src/main/java/course/labs/common/Snackbar.kt b/Labs/Lab4_Permissions/app/src/main/java/course/labs/common/Snackbar.kt
new file mode 100644
index 0000000000000000000000000000000000000000..150071c40c9aee18f362ff8ee485870fe27a3a26
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/java/course/labs/common/Snackbar.kt
@@ -0,0 +1,82 @@
+package course.labs.common
+
+import android.view.View
+import android.widget.Button
+import com.google.android.material.snackbar.BaseTransientBottomBar
+import com.google.android.material.snackbar.Snackbar
+
+/** Keeps track of snackbar instance to support [dismissSnackbar]. */
+private var snackbarInstance: Snackbar? = null
+
+/**
+ * Dismisses a possibly visible [Snackbar].
+ */
+fun dismissSnackbar() {
+ snackbarInstance?.dismiss()
+}
+
+/**
+ * View extension that shows a [Snackbar] with the
+ * provided resource string and an optional [Button].
+ */
+fun View.showSnackbar(
+ resId: Int,
+ length: Int,
+ actionMessage: CharSequence? = null,
+ action: (View) -> Unit = {}
+) {
+ showSnackbar(context.getString(resId), length, actionMessage, action)
+}
+
+/**
+ * View extension that shows a [Snackbar] with the
+ * provided resource string and an optional [Button].
+ */
+fun View.showSnackbar(
+ resId: Int,
+ length: Int,
+ actionMessage: Int,
+ action: (View) -> Unit = {}
+) {
+ showSnackbar(
+ context.getString(resId),
+ length,
+ context.getString(actionMessage),
+ action
+ )
+}
+
+/**
+ * View extension that shows a [Snackbar] with the
+ * provided message string and an optional [Button].
+ */
+fun View.showSnackbar(
+ msg: String,
+ length: Int,
+ actionMessage: CharSequence? = null,
+ action: (View) -> Unit = {}
+) {
+ Snackbar.make(this, msg, length).apply {
+ if (actionMessage != null || length == Snackbar.LENGTH_INDEFINITE) {
+ setAction(actionMessage ?: context.getString(android.R.string.ok)) {
+ action(view)
+ }
+ }
+
+ // Add callback to set and clear Snackbar property
+ // when Snackbar is shown and dismissed.
+ addCallback(object : BaseTransientBottomBar.BaseCallback<Snackbar>() {
+ override fun onShown(snackbar: Snackbar?) {
+ snackbarInstance = snackbar
+ super.onShown(snackbar)
+ }
+
+ override fun onDismissed(snackbar: Snackbar?, event: Int) {
+ snackbarInstance = null
+ super.onDismissed(snackbar, event)
+ }
+ })
+
+ show()
+ }
+}
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/java/course/labs/permissionslab/MainActivity.kt b/Labs/Lab4_Permissions/app/src/main/java/course/labs/permissionslab/MainActivity.kt
new file mode 100644
index 0000000000000000000000000000000000000000..949ae20bf94be22b7e0418645027bf70e449691a
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/java/course/labs/permissionslab/MainActivity.kt
@@ -0,0 +1,84 @@
+package course.labs.permissionslab
+
+import android.Manifest
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.net.Uri
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.widget.Toast
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
+import com.google.android.material.snackbar.Snackbar
+import course.labs.common.showSnackbar
+import course.labs.permissionslab.databinding.ActivityMainBinding
+
+class MainActivity : AppCompatActivity() {
+
+ private lateinit var binding: ActivityMainBinding
+
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+
+ binding = ActivityMainBinding.inflate(layoutInflater)
+ setContentView(binding.root)
+
+ binding.fab.setOnClickListener {
+ onButtonClick()
+ }
+ }
+
+ private fun onButtonClick() {
+ var PERMISSION: String = ""
+
+ when {
+ //TODO: If the permission has already been granted dial the number.
+ // [Hint]: Use checkSelfPermission to check if the permission has been granted, and then call the dialPhoneNumber() method.
+
+ //TODO: Remove the variable - PERMISSION, after completing the above block.
+
+ // Check if the user has previously denied permission and
+ // therefore a rationale should be provided to help the user
+ // understand the importance of granting this permission.
+ shouldShowRequestPermissionRationale(PERMISSION) -> {
+ binding.root.showSnackbar(
+ R.string.need_permission_string,
+ Snackbar.LENGTH_INDEFINITE,
+ android.R.string.ok
+ ) {
+ requestPermissionLauncher.launch(PERMISSION)
+ }
+ }
+ // User hasn't been asked for permission yet.
+ else -> {
+ // TODO: launch the permission request launcher.
+ }
+ }
+ }
+
+ // Create the permission request launcher.
+ // If permission granted, dial the phone number.
+ private val requestPermissionLauncher: ActivityResultLauncher<String> =
+ registerForActivityResult(
+ ActivityResultContracts.RequestPermission()
+ ) { isGranted ->
+ //TODO: Dial the phone number if the permission has been granted.
+ if (isGranted) {
+ } else {
+ Toast.makeText(
+ this, getString(R.string.need_permission_string),
+ Toast.LENGTH_SHORT
+ ).show()
+ }
+ }
+
+ private fun dialPhoneNumber() {
+ //TODO: Create an Intent with the appropriate action and data.
+ // [Hint]:Implicitly start an Activity to call the desired Phone Number.
+ }
+
+ //TODO: Create a companion object that contains and defines
+ // the ACTION string for dialing a phone number without user input,
+ // the PERMISSION needed for doing this,
+ // and PHONE_NUMBER_URI to be used in the Intent (the desired number is 5554).
+}
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/Labs/Lab4_Permissions/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000000000000000000000000000000000000..2b068d11462a4b96669193de13a711a3a36220a0
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+<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:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+ <aapt:attr name="android:fillColor">
+ <gradient
+ android:endX="85.84757"
+ android:endY="92.4963"
+ android:startX="42.9492"
+ android:startY="49.59793"
+ 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="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+ android:strokeWidth="1"
+ android:strokeColor="#00000000" />
+</vector>
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/res/drawable/ic_launcher_background.xml b/Labs/Lab4_Permissions/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000000000000000000000000000000000000..07d5da9cbf141911847041df5d7b87f0dd5ef9d4
--- /dev/null
+++ b/Labs/Lab4_Permissions/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="#3DDC84"
+ 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/Lab4_Permissions/app/src/main/res/layout/activity_main.xml b/Labs/Lab4_Permissions/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000000000000000000000000000000000000..273054e5fd75e8cf1db904d539b5905bd0b2d7b1
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/res/layout/activity_main.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: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="@string/instructions_string"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"
+ app:layout_constraintStart_toStartOf="parent"
+ app:layout_constraintTop_toTopOf="parent" />
+
+ <com.google.android.material.floatingactionbutton.FloatingActionButton
+ android:id="@+id/fab"
+ android:layout_width="wrap_content"
+ android:layout_height="wrap_content"
+ android:layout_gravity="end|bottom"
+ android:src="@android:drawable/ic_menu_call"
+ android:contentDescription="Call"
+ android:layout_margin="16dp"
+ app:layout_constraintBottom_toBottomOf="parent"
+ app:layout_constraintEnd_toEndOf="parent"/>
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/Labs/Lab4_Permissions/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000000000000000000000000000000000000..eca70cfe52eac1ba66ba280a68ca7be8fcf88a16
--- /dev/null
+++ b/Labs/Lab4_Permissions/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/Lab4_Permissions/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/Labs/Lab4_Permissions/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 0000000000000000000000000000000000000000..eca70cfe52eac1ba66ba280a68ca7be8fcf88a16
--- /dev/null
+++ b/Labs/Lab4_Permissions/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/Lab4_Permissions/app/src/main/res/mipmap-hdpi/ic_launcher.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-hdpi/ic_launcher.webp
new file mode 100644
index 0000000000000000000000000000000000000000..c209e78ecd372343283f4157dcfd918ec5165bb3
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-hdpi/ic_launcher.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
new file mode 100644
index 0000000000000000000000000000000000000000..b2dfe3d1ba5cf3ee31b3ecc1ced89044a1f3b7a9
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-mdpi/ic_launcher.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-mdpi/ic_launcher.webp
new file mode 100644
index 0000000000000000000000000000000000000000..4f0f1d64e58ba64d180ce43ee13bf9a17835fbca
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-mdpi/ic_launcher.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
new file mode 100644
index 0000000000000000000000000000000000000000..62b611da081676d42f6c3f78a2c91e7bcedddedb
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-xhdpi/ic_launcher.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
new file mode 100644
index 0000000000000000000000000000000000000000..948a3070fe34c611c42c0d3ad3013a0dce358be0
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xhdpi/ic_launcher.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
new file mode 100644
index 0000000000000000000000000000000000000000..1b9a6956b3acdc11f40ce2bb3f6efbd845cc243f
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
new file mode 100644
index 0000000000000000000000000000000000000000..28d4b77f9f036a47549d47db79c16788749dca10
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
new file mode 100644
index 0000000000000000000000000000000000000000..9287f5083623b375139afb391af71cc533a7dd37
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
new file mode 100644
index 0000000000000000000000000000000000000000..aa7d6427e6fa1074b79ccd52ef67ac15c5637e85
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
new file mode 100644
index 0000000000000000000000000000000000000000..9126ae37cbc3587421d6889eadd1d91fbf1994d4
Binary files /dev/null and b/Labs/Lab4_Permissions/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp differ
diff --git a/Labs/Lab4_Permissions/app/src/main/res/values-night/themes.xml b/Labs/Lab4_Permissions/app/src/main/res/values-night/themes.xml
new file mode 100644
index 0000000000000000000000000000000000000000..a32278c2b6751f4b3e65ee419dca66339c63984e
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/res/values-night/themes.xml
@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+ <!-- Base application theme. -->
+ <style name="Theme.PermissionsLab" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+ <!-- Primary brand color. -->
+ <item name="colorPrimary">@color/purple_200</item>
+ <item name="colorPrimaryVariant">@color/purple_700</item>
+ <item name="colorOnPrimary">@color/black</item>
+ <!-- Secondary brand color. -->
+ <item name="colorSecondary">@color/teal_200</item>
+ <item name="colorSecondaryVariant">@color/teal_200</item>
+ <item name="colorOnSecondary">@color/black</item>
+ <!-- Status bar color. -->
+ <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+ <!-- Customize your theme here. -->
+ </style>
+</resources>
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/res/values/colors.xml b/Labs/Lab4_Permissions/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000000000000000000000000000000000000..f8c6127d327620c93d2b2d00342a68e97b98a48d
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/res/values/colors.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+ <color name="purple_200">#FFBB86FC</color>
+ <color name="purple_500">#FF6200EE</color>
+ <color name="purple_700">#FF3700B3</color>
+ <color name="teal_200">#FF03DAC5</color>
+ <color name="teal_700">#FF018786</color>
+ <color name="black">#FF000000</color>
+ <color name="white">#FFFFFFFF</color>
+</resources>
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/res/values/strings.xml b/Labs/Lab4_Permissions/app/src/main/res/values/strings.xml
new file mode 100644
index 0000000000000000000000000000000000000000..dcbc4de3e8c44735bac6b8a31fc88e99e5b6a7fd
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/res/values/strings.xml
@@ -0,0 +1,5 @@
+<resources>
+ <string name="app_name">PermissionsLab</string>
+ <string name="instructions_string">Click on call button to start phone call</string>
+ <string name="need_permission_string">This app requires your permission in order to make this phone call</string>
+</resources>
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/res/values/themes.xml b/Labs/Lab4_Permissions/app/src/main/res/values/themes.xml
new file mode 100644
index 0000000000000000000000000000000000000000..dd0529c07b44a2896a2a61026b9e3e911f02fed5
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/res/values/themes.xml
@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+ <!-- Base application theme. -->
+ <style name="Theme.PermissionsLab" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+ <!-- Primary brand color. -->
+ <item name="colorPrimary">@color/purple_500</item>
+ <item name="colorPrimaryVariant">@color/purple_700</item>
+ <item name="colorOnPrimary">@color/white</item>
+ <!-- Secondary brand color. -->
+ <item name="colorSecondary">@color/teal_200</item>
+ <item name="colorSecondaryVariant">@color/teal_700</item>
+ <item name="colorOnSecondary">@color/black</item>
+ <!-- Status bar color. -->
+ <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+ <!-- Customize your theme here. -->
+ </style>
+</resources>
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/res/xml/backup_rules.xml b/Labs/Lab4_Permissions/app/src/main/res/xml/backup_rules.xml
new file mode 100644
index 0000000000000000000000000000000000000000..fa0f996d2c2a6bdd11f5371de4268c8389d6c720
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/res/xml/backup_rules.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ Sample backup rules file; uncomment and customize as necessary.
+ See https://developer.android.com/guide/topics/data/autobackup
+ for details.
+ Note: This file is ignored for devices older that API 31
+ See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+ <!--
+ <include domain="sharedpref" path="."/>
+ <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/app/src/main/res/xml/data_extraction_rules.xml b/Labs/Lab4_Permissions/app/src/main/res/xml/data_extraction_rules.xml
new file mode 100644
index 0000000000000000000000000000000000000000..79c56928c4ad8853dcba4097b5bc52d99fdee746
--- /dev/null
+++ b/Labs/Lab4_Permissions/app/src/main/res/xml/data_extraction_rules.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+ Sample data extraction rules file; uncomment and customize as necessary.
+ See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+ for details.
+-->
+<data-extraction-rules>
+ <cloud-backup>
+ <!-- Use <include> and <exclude> to control what is backed up.
+ <include .../>
+ <exclude .../>
+ -->
+ </cloud-backup>
+ <!--
+ <device-transfer>
+ <include .../>
+ <exclude .../>
+ </device-transfer>
+ -->
+</data-extraction-rules>
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/build.gradle b/Labs/Lab4_Permissions/build.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..64f119e33344ef7caf3fa99959245374a5436294
--- /dev/null
+++ b/Labs/Lab4_Permissions/build.gradle
@@ -0,0 +1,10 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+ id 'com.android.application' version '7.2.2' apply false
+ id 'com.android.library' version '7.2.2' apply false
+ id 'org.jetbrains.kotlin.android' version '1.7.10' apply false
+}
+
+task clean(type: Delete) {
+ delete rootProject.buildDir
+}
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/gradle.properties b/Labs/Lab4_Permissions/gradle.properties
new file mode 100644
index 0000000000000000000000000000000000000000..cd0519bb2a9450033b80e5906f766b71d176014f
--- /dev/null
+++ b/Labs/Lab4_Permissions/gradle.properties
@@ -0,0 +1,23 @@
+# 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=-Xmx2048m -Dfile.encoding=UTF-8
+# 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
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
\ No newline at end of file
diff --git a/Labs/Lab4_Permissions/gradle/wrapper/gradle-wrapper.jar b/Labs/Lab4_Permissions/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000000000000000000000000000000000000..e708b1c023ec8b20f512888fe07c5bd3ff77bb8f
Binary files /dev/null and b/Labs/Lab4_Permissions/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/Labs/Lab4_Permissions/gradle/wrapper/gradle-wrapper.properties b/Labs/Lab4_Permissions/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000000000000000000000000000000000000..44567691b157d312389a58dc4ddbe1e09d7ec272
--- /dev/null
+++ b/Labs/Lab4_Permissions/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Sat Aug 27 08:05:35 EDT 2022
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.3-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
diff --git a/Labs/Lab4_Permissions/gradlew b/Labs/Lab4_Permissions/gradlew
new file mode 100644
index 0000000000000000000000000000000000000000..4f906e0c811fc9e230eb44819f509cd0627f2600
--- /dev/null
+++ b/Labs/Lab4_Permissions/gradlew
@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+## 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 "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+ echo "$*"
+}
+
+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 or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; 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=`expr $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"
+
+exec "$JAVACMD" "$@"
diff --git a/Labs/Lab4_Permissions/gradlew.bat b/Labs/Lab4_Permissions/gradlew.bat
new file mode 100644
index 0000000000000000000000000000000000000000..107acd32c4e687021ef32db511e8a206129b88ec
--- /dev/null
+++ b/Labs/Lab4_Permissions/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@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 Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@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="-Xmx64m" "-Xms64m"
+
+@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 execute
+
+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 execute
+
+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
+
+: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 %*
+
+: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/Lab4_Permissions/settings.gradle b/Labs/Lab4_Permissions/settings.gradle
new file mode 100644
index 0000000000000000000000000000000000000000..d10262f50e17d52f1ccb4c3917050ef4ec94d068
--- /dev/null
+++ b/Labs/Lab4_Permissions/settings.gradle
@@ -0,0 +1,16 @@
+pluginManagement {
+ repositories {
+ gradlePluginPortal()
+ google()
+ mavenCentral()
+ }
+}
+dependencyResolutionManagement {
+ repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+ repositories {
+ google()
+ mavenCentral()
+ }
+}
+rootProject.name = "PermissionsLab"
+include ':app'