QR/Aztec scanning using google play services

Still need to generate codes for clients to scan

app/build.gradle.kts

@@ -49,6 +49,7 @@ dependencies {
     implementation(libs.androidx.lifecycle.viewmodel.ktx)
     implementation(libs.androidx.navigation.fragment.ktx)
     implementation(libs.androidx.navigation.ui.ktx)
+    implementation(libs.play.services.code.scanner)
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)

app/src/main/java/com/lhw/pdf/ui/NetworkFragment.kt

@@ -0,0 +1,42 @@
+package com.lhw.pdf.ui
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import com.google.mlkit.vision.barcode.common.Barcode
+import com.google.mlkit.vision.codescanner.GmsBarcodeScannerOptions
+import com.google.mlkit.vision.codescanner.GmsBarcodeScanning
+import com.lhw.pdf.R
+import com.lhw.pdf.databinding.FragmentNetworkBinding
+import com.lhw.pdf.databinding.FragmentSlideshowBinding
+
+class NetworkFragment : Fragment() {
+    private var _binding: FragmentNetworkBinding? = null
+    // This property is only valid between onCreateView and
+    // onDestroyView.
+    private val binding get() = _binding!!
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        _binding = FragmentNetworkBinding.inflate(inflater, container, false)
+        val root: View = binding.root
+
+        binding.btnScanQrCode.setOnClickListener { getQrCode() }
+        return root
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
+    private fun getQrCode() {
+        val options = GmsBarcodeScannerOptions.Builder().setBarcodeFormats(Barcode.FORMAT_QR_CODE, Barcode.FORMAT_AZTEC).enableAutoZoom().build()
+        val scanner = GmsBarcodeScanning.getClient(requireContext(), options)
+        scanner.startScan()
+            .addOnSuccessListener { println("QR scan success: ${it.rawValue}") }
+            .addOnCanceledListener { println("QR scan canceled") }
+            .addOnFailureListener { println("QR scan failure: $it") }
+    }
+}

app/src/main/java/com/lhw/pdf/ui/gallery/GalleryViewModel.kt

@@ -1,7 +1,6 @@
 package com.lhw.pdf.ui.gallery
 
 import android.graphics.Bitmap
-import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 

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

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.NetworkFragment">
+
+    <!-- TODO: Update blank fragment layout -->
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="Network fragment"
+        android:textAlignment="center" />
+
+    <Button
+        android:id="@+id/btn_scan_qr_code"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Scan QR Code" />
+
+</FrameLayout>

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

@@ -16,5 +16,9 @@
             android:id="@+id/nav_slideshow"
             android:icon="@drawable/ic_menu_slideshow"
             android:title="@string/menu_slideshow" />
+        <item
+            android:id="@+id/nav_network"
+            android:icon="@android:drawable/ic_menu_compass"
+            android:title="@string/menu_network_fragment" />
     </group>
 </menu>

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

@@ -22,4 +22,10 @@
         android:name="com.lhw.pdf.ui.slideshow.SlideshowFragment"
         android:label="@string/menu_slideshow"
         tools:layout="@layout/fragment_slideshow" />
+
+    <fragment
+        android:id="@+id/nav_network"
+        android:name="com.lhw.pdf.ui.NetworkFragment"
+        android:label="@string/menu_network_fragment"
+        tools:layout="@layout/fragment_network" />
 </navigation>

app/src/main/res/values/strings.xml

@@ -10,4 +10,5 @@
     <string name="menu_home">Home</string>
     <string name="menu_gallery">Gallery</string>
     <string name="menu_slideshow">Slideshow</string>
+    <string name="menu_network_fragment">Network</string>
 </resources>

gradle/libs.versions.toml

@@ -13,6 +13,7 @@ lifecycleViewmodelKtx = "2.8.4"
 navigationFragmentKtx = "2.7.7"
 navigationUiKtx = "2.7.7"
 pdfboxAndroid = "2.0.27.0"
+playServicesCodeScanner = "16.1.0"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
@@ -27,6 +28,7 @@ androidx-lifecycle-viewmodel-ktx = { group = "androidx.lifecycle", name = "lifec
 androidx-navigation-fragment-ktx = { group = "androidx.navigation", name = "navigation-fragment-ktx", version.ref = "navigationFragmentKtx" }
 androidx-navigation-ui-ktx = { group = "androidx.navigation", name = "navigation-ui-ktx", version.ref = "navigationUiKtx" }
 pdfbox-android = { module = "com.tom-roush:pdfbox-android", version.ref = "pdfboxAndroid" }
+play-services-code-scanner = { group = "com.google.android.gms", name = "play-services-code-scanner", version.ref = "playServicesCodeScanner" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }