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chore(android): project to natively develop the lib
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‎src-native/android/build.gradle‎

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// Top-level build file where you can add configuration options common to all sub-projects/modules.
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subprojects {ext.cameraxVersion = "1.4.0-alpha02"}
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buildscript {
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ext.kotlin_version = '1.8.0'
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repositories {
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google()
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mavenCentral()
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}
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dependencies {
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classpath 'com.android.tools.build:gradle:7.3.1'
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classpath 'com.android.tools.build:gradle:8.2.0-rc02'
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classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
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}
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}

‎src-native/android/camerademoapp/.gitignore‎

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/build

‎src-native/android/camerademoapp/build.gradle‎

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plugins {
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id 'com.android.application'
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id 'org.jetbrains.kotlin.android'
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}
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android {
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namespace 'com.nativescript.camerademoapp'
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compileSdk 34
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defaultConfig {
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applicationId "com.nativescript.camerademoapp"
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minSdk 24
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targetSdk 34
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
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}
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}
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compileOptions {
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sourceCompatibility JavaVersion.VERSION_1_8
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targetCompatibility JavaVersion.VERSION_1_8
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}
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kotlinOptions {
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jvmTarget = '1.8'
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}
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buildFeatures {
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viewBinding true
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}
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}
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dependencies {
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implementation 'androidx.core:core-ktx:1.12.0'
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implementation 'androidx.appcompat:appcompat:1.6.1'
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implementation 'com.google.android.material:material:1.10.0'
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implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
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implementation 'androidx.navigation:navigation-fragment-ktx:2.7.5'
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implementation 'androidx.navigation:navigation-ui-ktx:2.7.5'
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implementation project(':ui-camera')
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testImplementation 'junit:junit:4.13.2'
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androidTestImplementation 'androidx.test.ext:junit:1.1.5'
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androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
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def cameraxVersion = project.hasProperty("cameraxVersion") ? project.cameraxVersion : "1.2.3"
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implementation "androidx.camera:camera-core:${cameraxVersion}"
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}

‎src-native/android/camerademoapp/proguard-rules.pro‎

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎src-native/android/camerademoapp/src/androidTest/java/com/nativescript/camerademoapp/ExampleInstrumentedTest.kt‎

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package com.nativescript.camerademoapp
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import androidx.test.platform.app.InstrumentationRegistry
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import androidx.test.ext.junit.runners.AndroidJUnit4
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import org.junit.Test
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import org.junit.runner.RunWith
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import org.junit.Assert.*
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/**
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* Instrumented test, which will execute on an Android device.
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*
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* See [testing documentation](http://d.android.com/tools/testing).
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*/
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@RunWith(AndroidJUnit4::class)
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class ExampleInstrumentedTest {
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@Test
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fun useAppContext() {
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// Context of the app under test.
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val appContext = InstrumentationRegistry.getInstrumentation().targetContext
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assertEquals("com.nativescript.camerademoapp", appContext.packageName)
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}
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}

‎src-native/android/camerademoapp/src/main/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android">
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<uses-feature
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android:name="android.hardware.camera"
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android:required="true" />
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<uses-permission android:name="android.permission.CAMERA"/>
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/Theme.Android">
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<activity
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android:name=".MainActivity"
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android:exported="true"
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android:label="@string/app_name"
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android:theme="@style/Theme.Android">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎src-native/android/camerademoapp/src/main/java/com/nativescript/camerademoapp/FirstFragment.kt‎

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package com.nativescript.camerademoapp
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import android.content.pm.PackageManager
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import android.graphics.Color
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import android.media.Image
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import android.os.Bundle
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import android.util.Log
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import androidx.fragment.app.Fragment
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import androidx.activity.result.contract.ActivityResultContracts
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import androidx.core.app.ActivityCompat
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import androidx.core.content.ContextCompat
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import androidx.navigation.fragment.findNavController
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import com.google.android.material.snackbar.Snackbar
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import com.nativescript.camerademoapp.databinding.FragmentFirstBinding
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import com.nativescript.cameraview.CameraEventListener
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import com.nativescript.cameraview.ImageAnalysis
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import com.nativescript.cameraview.ImageAsyncProcessor
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import java.io.File
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import java.lang.Exception
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/**
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* A simple [Fragment] subclass as the default destination in the navigation.
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*/
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class FirstFragment : Fragment() {
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private var photoTime: Long = 0
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private var _binding: FragmentFirstBinding? = null
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// This property is only valid between onCreateView and
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// onDestroyView.
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private val binding get() = _binding!!
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private val requestPermissionLauncher =
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registerForActivityResult(
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ActivityResultContracts.RequestPermission()
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) { isGranted: Boolean ->
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if (isGranted) {
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binding.cameraView.startPreview()
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Log.i("Permission: ", "Granted")
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} else {
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Log.i("Permission: ", "Denied")
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}
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}
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override fun onCreateView(
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inflater: LayoutInflater, container: ViewGroup?,
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savedInstanceState: Bundle?
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): View? {
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_binding = FragmentFirstBinding.inflate(inflater, container, false)
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return binding.root
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}
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fun requestCameraPermission() {
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when {
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ContextCompat.checkSelfPermission(
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this.requireActivity(),
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android.Manifest.permission.CAMERA
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) == PackageManager.PERMISSION_GRANTED -> {
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// layout.showSnackbar(
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// view,
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// "granted",
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// Snackbar.LENGTH_INDEFINITE,
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// null
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// ) {}
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}
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ActivityCompat.shouldShowRequestPermissionRationale(
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this.requireActivity(),
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android.Manifest.permission.CAMERA
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) -> {
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view?.let {
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Snackbar.make(it, "permission required", Snackbar.LENGTH_INDEFINITE)
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.setAction("ok") {
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requestPermissionLauncher.launch(
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android.Manifest.permission.CAMERA
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)
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}
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.show()
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}
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}
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else -> {
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requestPermissionLauncher.launch(
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android.Manifest.permission.CAMERA
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)
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}
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}
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}
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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binding.cameraView.listener = object : CameraEventListener {
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override fun onReady() {
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Log.d("CameraView","onReady")
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}
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override fun onCameraOpen() {
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Log.d("CameraView","onCameraOpen")
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}
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override fun onCameraClose() {
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Log.d("CameraView","onCameraClose")
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}
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override fun onCameraPhoto(file: File?) {
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Log.d("CameraView","onCameraPhoto: " + ((System.nanoTime()-photoTime)/1000000) + "ms" )
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}
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override fun onCameraPhotoImage(
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image: Image?,
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info: androidx.camera.core.ImageInfo,
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processor: ImageAsyncProcessor
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) {
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Log.d("CameraView","onCameraPhotoImage: " + ((System.nanoTime()-photoTime)/1000000) + "ms" )
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processor.finished()
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}
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override fun onCameraVideo(file: File?) {
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Log.d("CameraView","onCameraVideo")
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}
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override fun onCameraAnalysis(analysis: ImageAnalysis) {
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Log.d("CameraView","onCameraAnalysis")
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}
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override fun onCameraError(message: String, ex: Exception) {
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Log.d("CameraView","onCameraError")
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}
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override fun onCameraVideoStart() {
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Log.d("CameraView","onCameraVideoStart")
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}
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}
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requestCameraPermission()
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// binding.cameraView.startPreview()
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// binding.buttonFirst.setOnClickListener {
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// findNavController().navigate(R.id.action_FirstFragment_to_SecondFragment)
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// }
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binding.fab.setOnClickListener { view ->
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photoTime = System.nanoTime()
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binding.cameraView.takePhoto()
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}
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}
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override fun onDestroyView() {
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super.onDestroyView()
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_binding = null
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}
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}

‎src-native/android/camerademoapp/src/main/java/com/nativescript/camerademoapp/MainActivity.kt‎

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package com.nativescript.camerademoapp
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import android.os.Bundle
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import com.google.android.material.snackbar.Snackbar
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import androidx.appcompat.app.AppCompatActivity
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import androidx.navigation.findNavController
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import androidx.navigation.ui.AppBarConfiguration
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import androidx.navigation.ui.navigateUp
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import androidx.navigation.ui.setupActionBarWithNavController
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import android.view.Menu
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import android.view.MenuItem
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import com.nativescript.camerademoapp.databinding.ActivityMainBinding
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class MainActivity : AppCompatActivity() {
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private lateinit var appBarConfiguration: AppBarConfiguration
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private lateinit var binding: ActivityMainBinding
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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binding = ActivityMainBinding.inflate(layoutInflater)
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setContentView(binding.root)
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setSupportActionBar(binding.toolbar)
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val navController = findNavController(R.id.nav_host_fragment_content_main)
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appBarConfiguration = AppBarConfiguration(navController.graph)
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setupActionBarWithNavController(navController, appBarConfiguration)
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}
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override fun onCreateOptionsMenu(menu: Menu): Boolean {
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// Inflate the menu; this adds items to the action bar if it is present.
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menuInflater.inflate(R.menu.menu_main, menu)
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return true
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}
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override fun onOptionsItemSelected(item: MenuItem): Boolean {
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// Handle action bar item clicks here. The action bar will
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// automatically handle clicks on the Home/Up button, so long
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// as you specify a parent activity in AndroidManifest.xml.
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return when (item.itemId) {
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R.id.action_settings -> true
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else -> super.onOptionsItemSelected(item)
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}
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}
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override fun onSupportNavigateUp(): Boolean {
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val navController = findNavController(R.id.nav_host_fragment_content_main)
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return navController.navigateUp(appBarConfiguration)
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|| super.onSupportNavigateUp()
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}
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}

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