Sahifa fonini berish misoli

Foydalanilgan adabiyotlar ro’yhati

1. 
   Oʻzbekiston Respublikasi Prezidentining 2020 – yil 5 – oktyabrdagi PF-6079-son “Raqamli Oʻzbekiston – 2030” strategiyasi tasdiqlash va uni samarali amalga oshirish chora – tadbirlari toʻgʻrisidagi farmoni.
   
2. 
   Java Programming For Beginners – A simple Start to Java Programming by SCOTT SANDERSON,221 pages,Bestsellor book.
   
3. 
   Easy Java Programming for Beginners, Your Step-By-Step Guide to Learning Java Programming by Felix Alvaro (2016)
   
4. 
   Mark L. Murphy (2012). The Busy Coder's Guide To Android Development
   
5. 
   Reto Meier (2012). Professional Android 4 Application Development
   
6. 
   Marko Gargenta (2012). Learning Android
   
7. 
   Jeff Friesen (2012). Learn Java for Android Development
   
8. 
   The Restaurant Manager’s Handbook: How to Set Up, Operate, and Manage a Financially Successful Food Service Operation by Douglas Robert Brown (2019).
   
9. 
   Mario Zechner, Robert Green (2012). Beginning Android Games
   
10. 
    Reto Meier (2008). Professional Android Application Development
    
11. 
    Raximov O.D Hayot faoliyat xavfsizligi. O’quv-uslubiy majmua. Qarshi, 2012, 857bet.
    
12. 
    https://fayllar.org/iv-hayot-faoliyati-va-xavfsizligi
    
13. 
    https://docs.oracle.com/en/java/javase/18/
    
14. 
    https://docs.oracle.com/en/java/
    

Ilova:
package com.example.qr_scanner.ui
import android.Manifest
import android.app.Activity
import android.app.AlertDialog
import android.content.ActivityNotFoundException
import android.content.Context
import android.content.DialogInterface
import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import android.os.Build
import android.os.Bundle
import android.provider.Settings
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.Toast
import androidx.activity.result.contract.ActivityResultContracts
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import androidx.fragment.app.Fragment
import androidx.test.core.app.ApplicationProvider
import com.budiyev.android.codescanner.*
import com.example.qr_scanner.R
import com.example.qr_scanner.WebviewActivity
import com.example.qr_scanner.databinding.FragmentFirstBinding
import com.karumi.dexter.Dexter
import com.karumi.dexter.PermissionToken
import com.karumi.dexter.listener.PermissionDeniedResponse
import com.karumi.dexter.listener.PermissionGrantedResponse
import com.karumi.dexter.listener.PermissionRequest
import com.karumi.dexter.listener.single.PermissionListener

private const val ARG_PARAM1 = "param1"

private const val ARG_PARAM2 = "param2"
private const val PERMISSION_REQUEST_CODE = 200

class FirstFragment : Fragment() {

private var _binding: FragmentFirstBinding? = null
private val binding get() = _binding!!
private lateinit var codeScanner: CodeScanner
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
if(!checkPermission())
{
// showPermissionDialog()
}
_binding = FragmentFirstBinding.inflate(inflater, container, false)
return binding.root
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
// showPermissionDialog()
try {
Dexter.withContext(requireActivity())
.withPermission(Manifest.permission.CAMERA)
.withListener(object : PermissionListener {
override fun onPermissionGranted(response: PermissionGrantedResponse) {
codeScanner = CodeScanner(requireActivity(), binding.scannerView)
loadQrCodeScanner()
}
override fun onPermissionDenied(response: PermissionDeniedResponse) {
// showSettingsDialog()
}
override fun onPermissionRationaleShouldBeShown(
permission: PermissionRequest?,
token: PermissionToken?
) {
// showSettingsDialog()
}
}).check()
}catch(er:java.lang.Exception) {
}
}
private fun checkPermission(): Boolean {
return if (context?.let { ContextCompat.checkSelfPermission(it, Manifest.permission.CAMERA) }
!= PackageManager.PERMISSION_GRANTED
) {
// Permission is not granted
false
} else true
}
private val permissionsResultCallback = registerForActivityResult(
ActivityResultContracts.RequestPermission()){
when (it) {
true -> { println("Permission has been granted by user") }
false -> {
Toast.makeText(requireContext(), "Permission denied", Toast.LENGTH_SHORT).show()
//show your custom dialog and naviage to Permission seetings
}
}
}
private fun showPermissionDialog() {
val builder = AlertDialog.Builder(requireContext())
builder.setTitle("Permission required")
builder.setMessage("Some permissions are needed to be allowed to use this app without any problems.")
builder.setPositiveButton("Grant") { dialog, which ->
dialog.cancel()
val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
val uri = Uri.fromParts("package", requireActivity().packageName, null)
intent.data = uri
startActivity(intent)
}
builder.setNegativeButton("Cancel") { dialog, which ->
dialog.dismiss()
}
builder.show()
}
private fun showMessageOKCancel(message: String, okListener: DialogInterface.OnClickListener) {
AlertDialog.Builder(context)
.setMessage(message)
.setPositiveButton("OK", okListener)
.setNegativeButton("Cancel", null)
.create()
.show()
}
private fun showSettingsDialog() {
val builder: AlertDialog.Builder = AlertDialog.Builder(requireActivity())
builder.setTitle("Bu dastur ishlashi uchun cameraga ruhsat kerak !")
builder.setMessage("Sozlamalar bo'limdan kamerga ruhsat bering.")
builder.setIcon(R.drawable.baseline_camera_alt_24)
builder.setPositiveButton("GOTO SETTINGS") { dialog, which ->
dialog.cancel()
val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
val uri = Uri.fromParts("package", activity?.packageName, null)
intent.data = uri
startActivityForResult(intent, 101)
}
builder.setNegativeButton("Cancel") { dialog, which ->
dialog.cancel()
}
builder.show()
}
private fun loadQrCodeScanner() {
// Parameters (default values)
codeScanner.camera = CodeScanner.CAMERA_BACK // or CAMERA_FRONT or specific camera id
codeScanner.formats = CodeScanner.ALL_FORMATS // list of type BarcodeFormat,
// ex. listOf(BarcodeFormat.QR_CODE)
codeScanner.autoFocusMode = AutoFocusMode.SAFE // or CONTINUOUS
codeScanner.scanMode = ScanMode.SINGLE // or CONTINUOUS or PREVIEW
codeScanner.isAutoFocusEnabled = true // Whether to enable auto focus or not
codeScanner.isFlashEnabled = false // Whether to enable flash or not
codeScanner.decodeCallback = DecodeCallback {
activity?.runOnUiThread {
try {
val intent = Intent(context,WebviewActivity::class.java)
intent.putExtra("url", it.text)
startActivity(intent)
} catch (e: ActivityNotFoundException) {
Toast.makeText(
requireActivity(), "No application can handle this request."
+ " Please install a webbrowser", Toast.LENGTH_LONG
).show()
e.printStackTrace()
}
}
}
codeScanner.errorCallback = ErrorCallback { // or ErrorCallback.SUPPRESS
activity?.runOnUiThread {
Toast.makeText(
requireActivity(), "Camera initialization error: ${it.message}",
Toast.LENGTH_LONG
).show()
}
}
binding.scannerView.setOnClickListener {
codeScanner.startPreview()
}
}
override fun onResume() {
super.onResume()
if(checkPermission())
codeScanner.startPreview()
}
override fun onPause() {
super.onPause()
// if(checkPermission())
// codeScanner.startPreview()
}
}
package com.example.qr_scanner
import android.Manifest
import android.app.AlertDialog
import android.content.DialogInterface
import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.provider.Settings
import android.widget.Toast
import androidx.activity.result.contract.ActivityResultContracts
import androidx.core.content.ContextCompat
class MainActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
// Toast.makeText(this,"salom",Toast.LENGTH_LONG).show()
if(!checkPermission())
{
// showPermissionDialog()
}
}
private fun checkPermission(): Boolean {
return if (this.let { ContextCompat.checkSelfPermission(it, Manifest.permission.CAMERA) }
!= PackageManager.PERMISSION_GRANTED
) {
// Permission is not granted
false
} else true
}
private val permissionsResultCallback = registerForActivityResult(
ActivityResultContracts.RequestPermission()){
when (it)
{
true -> { println("Permission has been granted by user") }
false -> {
Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show()
//show your custom dialog and naviage to Permission seetings
}
}
}
private fun showPermissionDialog() {
val builder = AlertDialog.Builder(this)
builder.setTitle("Permission required")
builder.setMessage("Some permissions are needed to be allowed to use this app without any problems.")
builder.setPositiveButton("Grant") { dialog, which ->
dialog.cancel()

val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
val uri = Uri.fromParts("package", this.packageName, null)
intent.data = uri
startActivity(intent)
}
builder.setNegativeButton("Cancel") { dialog, which ->
dialog.dismiss()
}
builder.show()
}
private fun showMessageOKCancel(message: String, okListener: DialogInterface.OnClickListener) {
AlertDialog.Builder(this)
.setMessage(message)
.setPositiveButton("OK", okListener)
.setNegativeButton("Cancel", null)
.create()
.show()
}
}