Develop Reference

Kotlin app object does not exist at location on firebase on click

My code gives me below error
package com.example.productsadder
import android.app.Activity
import android.content.Intent
import android.content.Intent.ACTION_GET_CONTENT
import android.graphics.Bitmap
import android.net.Uri
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.provider.MediaStore
import android.util.Log
import android.view.Menu
import android.view.MenuItem
import android.view.View
import android.widget.Toast
import androidx.activity.result.contract.ActivityResultContracts
import androidx.lifecycle.lifecycleScope
import com.example.productsadder.databinding.ActivityMainBinding
import com.google.firebase.firestore.ktx.firestore
import com.google.firebase.ktx.Firebase
import com.google.firebase.storage.ktx.storage
import com.skydoves.colorpickerview.ColorEnvelope
import com.skydoves.colorpickerview.ColorPickerDialog
import com.skydoves.colorpickerview.listeners.ColorEnvelopeListener
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.async
import kotlinx.coroutines.launch
import kotlinx.coroutines.tasks.await
import kotlinx.coroutines.withContext
import java.io.ByteArrayOutputStream
import java.lang.Exception
import java.util.UUID
class MainActivity : AppCompatActivity() {
private val binding by lazy { ActivityMainBinding.inflate(layoutInflater) }
private var selectedImages = mutableListOf<Uri>()
private val selectedColors = mutableListOf<Int>()
private val firestore = Firebase.firestore
private val productsStorage = Firebase.storage.reference
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(binding.root)
binding.buttonColorPicker.setOnClickListener{
ColorPickerDialog.Builder(this)
.setTitle("Product color")
.setPositiveButton("Select", object : ColorEnvelopeListener{
override fun onColorSelected(envelope: ColorEnvelope?, fromUser: Boolean) {
envelope?.let {
selectedColors.add(it.color)
updateColor()
}
}
})
.setNegativeButton("Cancel"){ colorPicker, _ ->
colorPicker.dismiss()
}.show()
}
val selectImagesActivityResult =
registerForActivityResult(ActivityResultContracts.StartActivityForResult()){ result ->
if(result.resultCode == Activity.RESULT_OK){
val intent = result.data
if(intent?.clipData != null){
val count = intent.clipData?.itemCount ?: 0
(0 until count).forEach{
val imageUri = intent.clipData?.getItemAt(it)?.uri
imageUri?.let{
selectedImages.add(it)
}
}
} else {
val imageUri = intent?.data
imageUri?.let { selectedImages.add(it) }
}
updateImages()
}
}
binding.buttonImagesPicker.setOnClickListener{
val intent = Intent(ACTION_GET_CONTENT)
intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true)
intent.type = "image/*"
selectImagesActivityResult.launch(intent)
}
}
private fun updateColor(){
var colors = ""
selectedColors.forEach{
colors = "$colors ${Integer.toHexString(it)}"
}
binding.tvSelectedColors.text = colors
}
override fun onCreateOptionsMenu(menu: Menu?): Boolean {
menuInflater.inflate(R.menu.toolbar_menu, menu)
return true
}
private fun updateImages(){
binding.tvSelectedImages.text = selectedImages.size.toString()
}
override fun onOptionsItemSelected(item: MenuItem): Boolean {
if(item.itemId == R.id.saveProduct){
val productValidation = validateInformation()
if (!productValidation){
Toast.makeText(this, "Check your inputs", Toast.LENGTH_SHORT).show()
return false
}
saveProducts() {
Log.d("test", it.toString())
}
}
return super.onOptionsItemSelected(item)
}
private fun saveProducts(state: (Boolean) -> Unit){
val name = binding.edName.text.toString().trim()
val category = binding.edCategory.text.toString().trim()
val price = binding.edPrice.text.toString().trim()
val offerPercentage = binding.offerPercentage.text.toString().trim()
val description = binding.edDescription.text.toString().trim()
val sizes = getSizesList(binding.edSizes.text.toString().trim())
val imagesByteArrays = getImagesByteArrays()
val images = mutableListOf<String>()
lifecycleScope.launch(Dispatchers.IO){
withContext(Dispatchers.Main){
showLoading()
}
try{
async {
imagesByteArrays.forEach{
val id = UUID.randomUUID().toString()
launch {
val imageStorage = productsStorage.child("products/images/$id")
val result = imageStorage.putBytes(it).await()
val downloadUrl = result.storage.downloadUrl.await().toString()
images.add(downloadUrl)
}
}
}.await()
}catch (e: Exception){
e.printStackTrace()
withContext(Dispatchers.Main){
hideLoading()
}
}
val product = Product(
UUID.randomUUID().toString(),
name,
category,
price.toFloat(),
if(offerPercentage.isEmpty()) null else offerPercentage.toFloat(),
if(description.isEmpty()) null else description,
if (selectedColors.isEmpty()) null else selectedColors,
sizes,
images,
)
firestore.collection("Products").add(product).addOnSuccessListener {
hideLoading()
} .addOnFailureListener{
hideLoading()
Log.e("Error", it.message.toString())
}
}
}
private fun hideLoading() {
binding.progressbar.visibility = View.INVISIBLE
}
private fun showLoading() {
binding.progressbar.visibility = View.VISIBLE
}
private fun getImagesByteArrays(): List<ByteArray>{
val imagesByteArray = mutableListOf<ByteArray>()
selectedImages.forEach{
val stream = ByteArrayOutputStream()
val imageBmp = MediaStore.Images.Media.getBitmap(contentResolver,it)
if (imageBmp.compress(Bitmap.CompressFormat.JPEG,100,stream)){
imagesByteArray.add(stream.toByteArray())
}
}
return imagesByteArray
}
private fun getSizesList(sizesStr:String): List<String>? {
if (sizesStr.isEmpty())
return null
val sizesList = sizesStr.split(",")
return sizesList
}
private fun validateInformation(): Boolean{
if(binding.edPrice.text.toString().trim().isEmpty())
return false
if(binding.edName.text.toString().trim().isEmpty())
return false
if(binding.edCategory.text.toString().trim().isEmpty())
return false
if (selectedImages.isEmpty())
return false
return true
}
}
This is the error i get
E/AndroidRuntime: FATAL EXCEPTION: DefaultDispatcher-worker-1
Process: com.example.productsadder, PID: 20855
com.google.firebase.storage.StorageException: Object does not exist at location.
at com.google.firebase.storage.UploadTask.snapStateImpl(UploadTask.java:573)
at com.google.firebase.storage.UploadTask.snapStateImpl(UploadTask.java:57)
at com.google.firebase.storage.StorageTask.snapState(StorageTask.java:343)
at com.google.firebase.storage.StorageTask.getFinalResult(StorageTask.java:453)
at com.google.firebase.storage.StorageTask.getException(StorageTask.java:313)
at kotlinx.coroutines.tasks.TasksKt$awaitImpl$2$1.onComplete(Tasks.kt:142)
at com.google.firebase.storage.StorageTask.lambda$new$2$com-google-firebase-storage-StorageTask(StorageTask.java:143)
at com.google.firebase.storage.StorageTask$$ExternalSyntheticLambda11.raise(Unknown Source:6)
at com.google.firebase.storage.TaskListenerImpl.lambda$onInternalStateChanged$2$com-google-firebase-storage-TaskListenerImpl(TaskListenerImpl.java:90)
at com.google.firebase.storage.TaskListenerImpl$$ExternalSyntheticLambda0.run(Unknown Source:6)
at kotlinx.coroutines.tasks.DirectExecutor.execute(Tasks.kt:164)
at com.google.firebase.storage.internal.SmartHandler.callBack(SmartHandler.java:70)
at com.google.firebase.storage.TaskListenerImpl.onInternalStateChanged(TaskListenerImpl.java:90)
at com.google.firebase.storage.StorageTask.tryChangeState(StorageTask.java:392)
at com.google.firebase.storage.StorageTask.tryChangeState(StorageTask.java:426)
at com.google.firebase.storage.UploadTask.serverStateValid(UploadTask.java:361)
at com.google.firebase.storage.UploadTask.shouldContinue(UploadTask.java:324)
at com.google.firebase.storage.UploadTask.run(UploadTask.java:245)
at com.google.firebase.storage.StorageTask.lambda$getRunnable$7$com-google-firebase-storage-StorageTask(StorageTask.java:1072)
at com.google.firebase.storage.StorageTask$$ExternalSyntheticLambda7.run(Unknown Source:2)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:637)
at java.lang.Thread.run(Thread.java:1012)
Suppressed: com.google.firebase.storage.StorageException: Object does not exist at location.
... 23 more
Caused by: java.io.IOException: The server has terminated the upload session
at com.google.firebase.storage.UploadTask.serverStateValid(UploadTask.java:358)
... 7 more
Caused by: java.io.IOException: { "error": { "code": 404, "message": "Not Found." }}
at com.google.firebase.storage.network.NetworkRequest.parseResponse(NetworkRequest.java:445)
at com.google.firebase.storage.network.NetworkRequest.parseErrorResponse(NetworkRequest.java:462)
at com.google.firebase.storage.network.NetworkRequest.processResponseStream(NetworkRequest.java:453)
at com.google.firebase.storage.network.NetworkRequest.performRequest(NetworkRequest.java:272)
at com.google.firebase.storage.network.NetworkRequest.performRequest(NetworkRequest.java:289)
at com.google.firebase.storage.internal.ExponentialBackoffSender.sendWithExponentialBackoff(ExponentialBackoffSender.java:76)
at com.google.firebase.storage.internal.ExponentialBackoffSender.sendWithExponentialBackoff(ExponentialBackoffSender.java:68)
at com.google.firebase.storage.UploadTask.sendWithRetry(UploadTask.java:526)
at com.google.firebase.storage.UploadTask.beginResumableUpload(UploadTask.java:292)
at com.google.firebase.storage.UploadTask.run(UploadTask.java:240)
... 5 more
Suppressed: kotlinx.coroutines.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}#edc0c51, Dispatchers.IO]
Caused by: java.io.IOException: The server has terminated the upload session
at com.google.firebase.storage.UploadTask.serverStateValid(UploadTask.java:358)
... 7 more
Caused by: java.io.IOException: { "error": { "code": 404, "message": "Not Found." }}
E/AndroidRuntime: at com.google.firebase.storage.network.NetworkRequest.parseResponse(NetworkRequest.java:445)
at com.google.firebase.storage.network.NetworkRequest.parseErrorResponse(NetworkRequest.java:462)
at com.google.firebase.storage.network.NetworkRequest.processResponseStream(NetworkRequest.java:453)
at com.google.firebase.storage.network.NetworkRequest.performRequest(NetworkRequest.java:272)
at com.google.firebase.storage.network.NetworkRequest.performRequest(NetworkRequest.java:289)
at com.google.firebase.storage.internal.ExponentialBackoffSender.sendWithExponentialBackoff(ExponentialBackoffSender.java:76)
at com.google.firebase.storage.internal.ExponentialBackoffSender.sendWithExponentialBackoff(ExponentialBackoffSender.java:68)
at com.google.firebase.storage.UploadTask.sendWithRetry(UploadTask.java:526)
at com.google.firebase.storage.UploadTask.beginResumableUpload(UploadTask.java:292)
at com.google.firebase.storage.UploadTask.run(UploadTask.java:240)
... 5 more

Profile Pic not displaying on Card View in Andorid Studio Kotlin

I am trying to get a users profile pic to be displayed beside their booking on a card in my recyclerview. The profile pic is displaying in my nav drawer, a default one for non-google users, or the profile pic of the Google user. However imageUri appears empty when I call it and the images are not being stored in my firebase storage bucket. I have linked my firebase and implemented the relevant SDK.
Here is my model.
#Parcelize
data class BookModel(
// var id : Long = 0,
var uid: String? = "",
var name: String = "N/A",
var phoneNumber: String = "N/A",
var email: String? = "N/A",
var date: String = "",
var bike: Int = 0,
var profilepic: String = "",
/*var lat: Double = 0.0,
var longitude: Double = 0.0,
var zoom: Float = 0f,*/
var pickup: String = "",
var dropoff: String = "",
var price: Double = 20.0,
/*var amount: Int = 0*/
) : Parcelable
{
#Exclude
fun toMap(): Map<String, Any?> {
return mapOf(
// "id" to id,
"uid" to uid,
"name" to name,
"phoneNumber" to phoneNumber,
"email" to email,
"date" to date,
"bike" to bike,
"profilepic" to profilepic,
"pickup" to pickup,
"dropoff" to dropoff,
"price" to price
)
}
}
#Parcelize
data class Location(
var lat: Double = 0.0,
var longitude: Double = 0.0,
var zoom: Float = 0f,
var depot: String = "Waterford"
) : Parcelable
Here is my FirebaseImageManager
package com.wit.mad2bikeshop.firebase
import android.graphics.Bitmap
import android.graphics.drawable.Drawable
import android.net.Uri
import android.widget.ImageView
import androidx.lifecycle.MutableLiveData
import com.google.firebase.storage.FirebaseStorage
import com.google.firebase.storage.UploadTask
import com.squareup.picasso.MemoryPolicy
import com.squareup.picasso.Picasso
import com.wit.mad2bikeshop.utils.customTransformation
import timber.log.Timber
import java.io.ByteArrayOutputStream
import com.squareup.picasso.Target
object FirebaseImageManager {
var storage = FirebaseStorage.getInstance().reference
var imageUri = MutableLiveData<Uri>()
fun checkStorageForExistingProfilePic(userid: String) {
val imageRef = storage.child("photos").child("${userid}.jpg")
val defaultImageRef = storage.child("ic_book_nav_header.png")
imageRef.metadata.addOnSuccessListener { //File Exists
imageRef.downloadUrl.addOnCompleteListener { task ->
imageUri.value = task.result!!
}
//File Doesn't Exist
}.addOnFailureListener {
imageUri.value = Uri.EMPTY
}
}
fun uploadImageToFirebase(userid: String, bitmap: Bitmap, updating : Boolean) {
// Get the data from an ImageView as bytes
val imageRef = storage.child("photos").child("${userid}.jpg")
//val bitmap = (imageView as BitmapDrawable).bitmap
val baos = ByteArrayOutputStream()
lateinit var uploadTask: UploadTask
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos)
val data = baos.toByteArray()
imageRef.metadata.addOnSuccessListener { //File Exists
if(updating) // Update existing Image
{
uploadTask = imageRef.putBytes(data)
uploadTask.addOnSuccessListener { ut ->
ut.metadata!!.reference!!.downloadUrl.addOnCompleteListener { task ->
imageUri.value = task.result!!
}
}
}
}.addOnFailureListener { //File Doesn't Exist
uploadTask = imageRef.putBytes(data)
uploadTask.addOnSuccessListener { ut ->
ut.metadata!!.reference!!.downloadUrl.addOnCompleteListener { task ->
imageUri.value = task.result!!
}
}
}
}
fun updateUserImage(userid: String, imageUri : Uri?, imageView: ImageView, updating : Boolean) {
Picasso.get().load(imageUri)
.resize(200, 200)
.transform(customTransformation())
.memoryPolicy(MemoryPolicy.NO_CACHE)
.centerCrop()
.into(object : Target {
override fun onBitmapLoaded(bitmap: Bitmap?,
from: Picasso.LoadedFrom?
) {
Timber.i("DX onBitmapLoaded $bitmap")
uploadImageToFirebase(userid, bitmap!!,updating)
imageView.setImageBitmap(bitmap)
}
override fun onBitmapFailed(e: java.lang.Exception?,
errorDrawable: Drawable?) {
Timber.i("DX onBitmapFailed $e")
}
override fun onPrepareLoad(placeHolderDrawable: Drawable?) {}
})
}
fun updateDefaultImage(userid: String, resource: Int, imageView: ImageView) {
Picasso.get().load(resource)
.into(object : Target {
override fun onBitmapLoaded(bitmap: Bitmap?,
from: Picasso.LoadedFrom?
) {
Timber.i("DX onBitmapLoaded $bitmap")
uploadImageToFirebase(userid, bitmap!!,false)
imageView.setImageBitmap(bitmap)
}
override fun onBitmapFailed(e: java.lang.Exception?,
errorDrawable: Drawable?) {
Timber.i("DX onBitmapFailed $e")
}
override fun onPrepareLoad(placeHolderDrawable: Drawable?) {}
})
}
}
My FirebaseAuthManager...
package com.wit.mad2bikeshop.firebase
import android.app.Application
import androidx.lifecycle.MutableLiveData
import com.google.android.gms.auth.api.signin.GoogleSignIn
import com.google.android.gms.auth.api.signin.GoogleSignInAccount
import com.google.android.gms.auth.api.signin.GoogleSignInClient
import com.google.android.gms.auth.api.signin.GoogleSignInOptions
import com.google.firebase.auth.FirebaseAuth
import com.google.firebase.auth.FirebaseUser
import com.google.firebase.auth.GoogleAuthProvider
import com.wit.mad2bikeshop.R
import timber.log.Timber
class FirebaseAuthManager(application: Application) {
private var application: Application? = null
var firebaseAuth: FirebaseAuth? = null
var liveFirebaseUser = MutableLiveData<FirebaseUser>()
var loggedOut = MutableLiveData<Boolean>()
var errorStatus = MutableLiveData<Boolean>()
var googleSignInClient = MutableLiveData<GoogleSignInClient>()
init {
this.application = application
firebaseAuth = FirebaseAuth.getInstance()
if (firebaseAuth!!.currentUser != null) {
liveFirebaseUser.postValue(firebaseAuth!!.currentUser)
loggedOut.postValue(false)
errorStatus.postValue(false)
FirebaseImageManager.checkStorageForExistingProfilePic(
firebaseAuth!!.currentUser!!.uid)
}
configureGoogleSignIn()
}
fun login(email: String?, password: String?) {
firebaseAuth!!.signInWithEmailAndPassword(email!!, password!!)
.addOnCompleteListener(application!!.mainExecutor, { task ->
if (task.isSuccessful) {
liveFirebaseUser.postValue(firebaseAuth!!.currentUser)
errorStatus.postValue(false)
} else {
Timber.i("Login Failure: $task.exception!!.message")
errorStatus.postValue(true)
}
})
}
fun register(email: String?, password: String?) {
firebaseAuth!!.createUserWithEmailAndPassword(email!!, password!!)
.addOnCompleteListener(application!!.mainExecutor, { task ->
if (task.isSuccessful) {
liveFirebaseUser.postValue(firebaseAuth!!.currentUser)
errorStatus.postValue(false)
} else {
Timber.i("Registration Failure: $task.exception!!.message")
errorStatus.postValue(true)
}
})
}
fun logOut() {
firebaseAuth!!.signOut()
Timber.i( "firebaseAuth Signed out")
googleSignInClient.value!!.signOut()
Timber.i( "googleSignInClient Signed out")
loggedOut.postValue(true)
errorStatus.postValue(false)
}
private fun configureGoogleSignIn() {
val gso = GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestIdToken(application!!.getString(R.string.default_web_client_id))
.requestEmail()
.build()
googleSignInClient.value = GoogleSignIn.getClient(application!!.applicationContext,gso)
}
fun firebaseAuthWithGoogle(acct: GoogleSignInAccount) {
Timber.i( "DonationX firebaseAuthWithGoogle:" + acct.id!!)
val credential = GoogleAuthProvider.getCredential(acct.idToken, null)
firebaseAuth!!.signInWithCredential(credential)
.addOnCompleteListener(application!!.mainExecutor) { task ->
if (task.isSuccessful) {
// Sign in success, update with the signed-in user's information
Timber.i( "signInWithCredential:success")
liveFirebaseUser.postValue(firebaseAuth!!.currentUser)
} else {
// If sign in fails, display a message to the user.
Timber.i( "signInWithCredential:failure $task.exception")
errorStatus.postValue(true)
}
}
}
}
My Home activity
package com.wit.mad2bikeshop.ui.home
import android.content.Intent
import android.net.Uri
import android.os.Bundle
import android.view.MenuItem
import android.view.View
import androidx.appcompat.app.AppCompatActivity
import androidx.appcompat.widget.Toolbar
import androidx.drawerlayout.widget.DrawerLayout
import androidx.lifecycle.Observer
import androidx.lifecycle.ViewModelProvider
import androidx.navigation.findNavController
import androidx.navigation.fragment.NavHostFragment
import androidx.navigation.ui.*
import com.google.firebase.auth.FirebaseUser
import com.squareup.picasso.Picasso
import com.wit.mad2bikeshop.R
import com.wit.mad2bikeshop.databinding.HomeBinding
import com.wit.mad2bikeshop.databinding.NavHeaderBinding
import com.wit.mad2bikeshop.firebase.FirebaseImageManager
import com.wit.mad2bikeshop.ui.auth.LoggedInViewModel
import com.wit.mad2bikeshop.ui.auth.Login
import com.wit.mad2bikeshop.utils.customTransformation
import timber.log.Timber
class Home : AppCompatActivity() {
private lateinit var drawerLayout: DrawerLayout
private lateinit var homeBinding: HomeBinding
private lateinit var navHeaderBinding: NavHeaderBinding
private lateinit var appBarConfiguration: AppBarConfiguration
private lateinit var loggedInViewModel: LoggedInViewModel
private lateinit var headerView : View
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
homeBinding = HomeBinding.inflate(layoutInflater)
setContentView(homeBinding.root)
drawerLayout = homeBinding.drawerLayout
val toolbar = findViewById<Toolbar>(R.id.toolbar)
setSupportActionBar(toolbar)
val navHostFragment =
supportFragmentManager.findFragmentById(R.id.nav_host_fragment) as NavHostFragment
val navController = navHostFragment.navController
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
appBarConfiguration = AppBarConfiguration(
setOf(
R.id.bookFragment, R.id.bookingListFragment
), drawerLayout
)
setupActionBarWithNavController(navController, appBarConfiguration)
val navView = homeBinding.navView
navView.setupWithNavController(navController)
initNavHeader()
}
public override fun onStart() {
super.onStart()
loggedInViewModel = ViewModelProvider(this).get(LoggedInViewModel::class.java)
loggedInViewModel.liveFirebaseUser.observe(this, Observer { firebaseUser ->
if (firebaseUser != null)
updateNavHeader(firebaseUser)
})
loggedInViewModel.loggedOut.observe(this, Observer { loggedout ->
if (loggedout) {
startActivity(Intent(this, Login::class.java))
}
})
}
private fun initNavHeader() {
Timber.i("DX Init Nav Header")
headerView = homeBinding.navView.getHeaderView(0)
navHeaderBinding = NavHeaderBinding.bind(headerView)
}
private fun updateNavHeader(currentUser: FirebaseUser) {
FirebaseImageManager.imageUri.observe(this, { result ->
if(result == Uri.EMPTY) {
Timber.i("DX NO Existing imageUri")
if (currentUser.photoUrl != null) {
//if you're a google user
FirebaseImageManager.updateUserImage(
currentUser.uid,
currentUser.photoUrl,
navHeaderBinding.navHeaderImage,
false)
}
else
{
Timber.i("DX Loading Existing Default imageUri")
FirebaseImageManager.updateDefaultImage(
currentUser.uid,
R.drawable.ic_book_nav_header,
navHeaderBinding.navHeaderImage)
}
}
else // load existing image from firebase
{
Timber.i("DX Loading Existing imageUri")
FirebaseImageManager.updateUserImage(
currentUser.uid,
FirebaseImageManager.imageUri.value,
navHeaderBinding.navHeaderImage, false)
}
})
navHeaderBinding.navHeaderEmail.text = currentUser.email
if(currentUser.displayName != null)
navHeaderBinding.navHeaderName.text = currentUser.displayName
}
override fun onSupportNavigateUp(): Boolean {
val navController = findNavController(R.id.nav_host_fragment)
return navController.navigateUp(appBarConfiguration) || super.onSupportNavigateUp()
}
fun signOut(item: MenuItem) {
loggedInViewModel.logOut()
//Launch Login activity and clear the back stack to stop navigating back to the Home activity
val intent = Intent(this, Login::class.java)
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK or Intent.FLAG_ACTIVITY_NEW_TASK)
startActivity(intent)
}
}
My BookViewModel
package com.wit.mad2bikeshop.ui.book
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import com.google.firebase.auth.FirebaseUser
import com.wit.mad2bikeshop.firebase.FirebaseDBManager
import com.wit.mad2bikeshop.firebase.FirebaseImageManager
import com.wit.mad2bikeshop.model.BookManager
import com.wit.mad2bikeshop.model.BookModel
class BookViewModel : ViewModel() {
private val status = MutableLiveData<Boolean>()
val observableStatus: LiveData<Boolean>
get() = status
fun addBook(firebaseUser: MutableLiveData<FirebaseUser>,
booking: BookModel) {
status.value = try {
booking.profilepic = FirebaseImageManager.imageUri.value.toString()
FirebaseDBManager.create(firebaseUser,booking)
true
} catch (e: IllegalArgumentException) {
false
}
}
// fun updateBook(booking: BookModel){
// status.value = try {
// BookManager.update(booking)
// true
// } catch (e: IllegalArgumentException) {
// false
// }
// }
}
My BookAdapter
package com.wit.mad2bikeshop.adapters
import android.view.LayoutInflater
import android.view.ViewGroup
import androidx.core.net.toUri
import androidx.recyclerview.widget.RecyclerView
import com.squareup.picasso.MemoryPolicy
import com.squareup.picasso.Picasso
import com.wit.mad2bikeshop.R
import com.wit.mad2bikeshop.databinding.CardBookBinding
import com.wit.mad2bikeshop.model.BookModel
import com.wit.mad2bikeshop.utils.customTransformation
interface BookListener {
// fun onDeleteBooking(booking: BookModel)
// fun onUpdateBooking(booking: BookModel)
fun onBookingClick(booking: BookModel)
}
class BookAdapter constructor(
private var bookings: ArrayList<BookModel>,
private val listener: BookListener,
private val readOnly: Boolean)
: RecyclerView.Adapter<BookAdapter.MainHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MainHolder {
val binding = CardBookBinding
.inflate(LayoutInflater.from(parent.context), parent, false)
return MainHolder(binding, readOnly)
}
override fun onBindViewHolder(holder: MainHolder, position: Int) {
val booking = bookings[holder.adapterPosition]
holder.bind(booking, listener)
}
fun removeAt(position: Int) {
bookings.removeAt(position)
notifyItemRemoved(position)
}
override fun getItemCount(): Int = bookings.size
inner class MainHolder(val binding: CardBookBinding,private val readOnly : Boolean) :
RecyclerView.ViewHolder(binding.root) {
val readOnlyRow = readOnly
fun bind(booking: BookModel, listener: BookListener) {
binding.root.tag = booking
binding.booking = booking
binding.imageIcon.setImageResource(R.mipmap.ic_launcher_round)
Picasso.get().load(booking.profilepic.toUri())
.resize(200, 200)
.transform(customTransformation())
.centerCrop()
.into(binding.imageIcon)
//
// binding.name.text = booking.name
// binding.phoneNumber.text = booking.phoneNumber
// binding.date.text = booking.date
binding.root.setOnClickListener { listener.onBookingClick(booking) }
// binding.buttonDelete.setOnClickListener { listener.onDeleteBooking(booking) }
// binding.buttonUpdate.setOnClickListener { listener.onUpdateBooking(booking) }
binding.executePendingBindings()
/* binding.imageIcon.setImageResource(R.mipmap.ic_launcher_round)*/
}
}
}
I believe the problem stems from the (FirebaseImageManager.imageUri.value.toString()) on my BookAdapter, as if I run a Timber.I statement it doesn't return anything at all. If I run Timber.i(FirebaseImageManager.imageUri.value.toString()+ "test"), it only returns test.
Here is a link to the full project https://github.com/foxxxxxxx7/MAD2bikeshop
Apologies if I wasn't clear enough, I am a novice.

I figured it out, I had to modify my rules on the firebase storage.

second viewModel unable to construct

I have a problem building a second viewModel for my app.
In my project, the first viewModel observes a list of Contact, while the second viewModel observes a single contact.
Both viewModels are really similar, but the first builds, while the second cannot construct
E/AndroidRuntime: FATAL EXCEPTION: main
Process: fr.dleurs.android.contactapp, PID: 12324
java.lang.RuntimeException: Unable to start activity ComponentInfo{fr.dleurs.android.contactapp/fr.dleurs.android.contactapp.ui.detailsContact.DetailsContactActivity}: java.lang.IllegalArgumentException: Unable to construct viewmodel
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3449)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:223)
at android.app.ActivityThread.main(ActivityThread.java:7656)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)
Caused by: java.lang.IllegalArgumentException: Unable to construct viewmodel
at fr.dleurs.android.contactapp.viewmodel.ContactViewModel$Factory.create(ContactViewModel.kt:33)
at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.java:187)
at androidx.lifecycle.ViewModelProvider.get(ViewModelProvider.java:150)
at fr.dleurs.android.contactapp.ui.detailsContact.DetailsContactActivity.onCreate(DetailsContactActivity.kt:40)
at android.app.Activity.performCreate(Activity.java:8000)
at android.app.Activity.performCreate(Activity.java:7984)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1309)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3422)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3601) 
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85) 
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) 
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2066) 
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loop(Looper.java:223) 
at android.app.ActivityThread.main(ActivityThread.java:7656) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947) 
I/Process: Sending signal. PID: 12324 SIG: 9
The second viewModel : ContactViewModel.kt
package fr.dleurs.android.contactapp.viewmodel
import android.app.Application
import androidx.lifecycle.*
import fr.dleurs.android.contactapp.database.ContactDatabase
import fr.dleurs.android.contactapp.database.ContactsDatabase.Companion.getInstance
import fr.dleurs.android.contactapp.model.Contact
import fr.dleurs.android.contactapp.repository.ContactRepository
import kotlinx.coroutines.launch
class ContactViewModel(application: Application) : AndroidViewModel(application) {
private val contactsRepository = ContactRepository(getInstance(application).contactDtbDao())
fun liveContact(contactId: String): LiveData<Contact> = contactsRepository.contact(contactId)
public fun updateContact(contact: ContactDatabase) {
viewModelScope.launch {
contactsRepository.updateContact(contact);
}
}
public fun deleteContact(contactId: String) {
viewModelScope.launch {
contactsRepository.deleteContact(contactId);
}
}
class Factory(val app: Application) : ViewModelProvider.Factory {
override fun <T : ViewModel?> create(modelClass: Class<T>): T {
if (modelClass.isAssignableFrom(ContactsViewModel::class.java)) {
#Suppress("UNCHECKED_CAST")
return ContactViewModel(app) as T
}
throw IllegalArgumentException("Unable to construct viewmodel")
}
}
}
The second activity, DetailsContactActivity.kt
package fr.dleurs.android.contactapp.ui.detailsContact
import android.app.Activity
import android.content.Intent
import android.os.Bundle
import android.widget.ImageButton
import androidx.appcompat.app.AppCompatActivity
import androidx.databinding.DataBindingUtil
import androidx.lifecycle.Observer
import androidx.lifecycle.ViewModelProvider
import androidx.lifecycle.lifecycleScope
import fr.dleurs.android.contactapp.R
import fr.dleurs.android.contactapp.database.ContactDatabase
import fr.dleurs.android.contactapp.databinding.DetailsContactActivityBinding
import fr.dleurs.android.contactapp.model.Contact
import fr.dleurs.android.contactapp.model.asDatabaseModel
import fr.dleurs.android.contactapp.ui.main.createContactActivityRequestCode
import fr.dleurs.android.contactapp.ui.main.detailContactActivityRequestCode
import fr.dleurs.android.contactapp.ui.newModifyContact.CreateModifyContactActivity
import fr.dleurs.android.contactapp.viewmodel.ContactViewModel
import fr.dleurs.android.contactapp.viewmodel.ContactsViewModel
import timber.log.Timber
class DetailsContactActivity : AppCompatActivity() {
private lateinit var binding: DetailsContactActivityBinding
private lateinit var contactId: String
private lateinit var viewModel: ContactViewModel
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
contactId = intent?.getStringExtra("contactId") ?: ""
assert(!contactId.isNullOrEmpty())
viewModel = ViewModelProvider(
this,
ContactViewModel.Factory(this.application)
).get(ContactViewModel::class.java)
val buttonEdit = findViewById<ImageButton>(R.id.ibEdit)
val buttonDelete = findViewById<ImageButton>(R.id.ibDelete)
val buttonBack = findViewById<ImageButton>(R.id.ibBack)
binding = DataBindingUtil.setContentView(this, R.layout.details_contact_activity)
viewModel.liveContact(contactId).observe(this, Observer<Contact> { theContact -> // this or viewLifecycleOwner ?
theContact?.let {
binding.apply { contact = it }
}
})
buttonEdit.setOnClickListener {
val editIntent = Intent(this, CreateModifyContactActivity::class.java)
//editIntent.putExtra("contact", it)
startActivityForResult(editIntent, createContactActivityRequestCode)
}
buttonDelete.setOnClickListener {
viewModel.deleteContact(contactId)
finish()
}
buttonBack.setOnClickListener {
val replyIntent = Intent()
setResult(Activity.RESULT_CANCELED, replyIntent)
finish()
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, intentData: Intent?) {
if (requestCode == createContactActivityRequestCode && resultCode == Activity.RESULT_OK ) {
val modifiedIntent = Intent()
val modifiedContact = intentData?.getParcelableExtra<ContactDatabase>("contact")
Timber.i("modifiedContact : " + modifiedContact.toString())
val contact: Contact = Contact(
id = modifiedContact!!.id.toString(),
firstName = modifiedContact!!.firstName,
lastName = modifiedContact!!.lastName,
mail = modifiedContact!!.mail
)
modifiedIntent.putExtra("action", "modify")
modifiedIntent.putExtra("contact", contact)
setResult(Activity.RESULT_OK, modifiedIntent)
finish()
}
super.onActivityResult(requestCode, resultCode, intentData)
}
}
The repository : ContactRepository.kt
package fr.dleurs.android.contactapp.repository
import android.util.Log
import androidx.lifecycle.LiveData
import androidx.lifecycle.Transformations
import fr.dleurs.android.contactapp.database.*
import fr.dleurs.android.contactapp.model.Contact
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext
import timber.log.Timber
import fr.dleurs.android.contactapp.network.asDatabaseModel
import java.util.logging.Level.INFO
class ContactRepository(private val contactDtbDao: ContactDtbDao) {
val contacts: LiveData<List<Contact>> =
Transformations.map(contactDtbDao.getContacts()) {
it.asDomainModel()
}
fun contact(contactId: String): LiveData<Contact> =
Transformations.map(contactDtbDao.getContact(contactId)) { it.asDomailModel() }
suspend fun refreshContacts() {
withContext(Dispatchers.IO) {
Log.i("ContactRepo", "Refresh contacts is called");
val contactList = ContactRetrofitApi.contacts.getContacts()
Log.i("ContactRepo", "ContactList created ${contactList.toString()}");
contactDtbDao.insertAll(contactList.asDatabaseModel())
}
}
suspend fun insertContact(contact: ContactDatabase) {
withContext(Dispatchers.IO) {
contactDtbDao.insert(contact);
}
}
suspend fun deleteContact(contactId: String) {
withContext(Dispatchers.IO) {
contactDtbDao.delete(contactId);
}
}
suspend fun updateContact(contact: ContactDatabase) {
withContext(Dispatchers.IO) {
contactDtbDao.update(contact);
}
}
}
The working ViewModel, ContactsViewModel.kt :
package fr.dleurs.android.contactapp.viewmodel
import android.app.Application
import android.util.Log
import androidx.lifecycle.*
import fr.dleurs.android.contactapp.database.ContactDatabase
import fr.dleurs.android.contactapp.database.ContactsDatabase
import fr.dleurs.android.contactapp.model.Contact
import fr.dleurs.android.contactapp.repository.ContactRepository
import kotlinx.coroutines.launch
import java.io.IOException
class ContactsViewModel(application: Application) : AndroidViewModel(application) {
//private val contactsRepository = ContactRepository(ContactsDatabase.getDatabase(application))
private val contactsRepository = ContactRepository(ContactsDatabase.getInstance(application).contactDtbDao())
var liveContacts: LiveData<List<Contact>> = contactsRepository.contacts
public fun insertContact(contact: ContactDatabase) {
viewModelScope.launch {
contactsRepository.insertContact(contact);
}
}
/**
* Event triggered for network error. This is private to avoid exposing a
* way to set this value to observers.
*/
private var _eventNetworkError = MutableLiveData<Boolean>(false)
/**
* Event triggered for network error. Views should use this to get access
* to the data.
*/
val eventNetworkError: LiveData<Boolean>
get() = _eventNetworkError
/**
* Flag to display the error message. This is private to avoid exposing a
* way to set this value to observers.
*/
private var _isNetworkErrorShown = MutableLiveData<Boolean>(false)
/**
* Flag to display the error message. Views should use this to get access
* to the data.
*/
val isNetworkErrorShown: LiveData<Boolean>
get() = _isNetworkErrorShown
/**
* init{} is called immediately when this ViewModel is created.
*/
init {
refreshDataFromRepository()
}
/**
* Refresh data from the repository. Use a coroutine launch to run in a
* background thread.
*/
private fun refreshDataFromRepository() {
viewModelScope.launch {
try {
contactsRepository.refreshContacts()
_eventNetworkError.value = false
_isNetworkErrorShown.value = false
} catch (networkError: IOException) {
// Show a Toast error message and hide the progress bar.
Log.i("ContactViewModel", "Error on refreshContact : ${networkError.toString()}")
if (liveContacts.value.isNullOrEmpty())
_eventNetworkError.value = true
}
}
}
/**
* Resets the network error flag.
*/
fun onNetworkErrorShown() {
_isNetworkErrorShown.value = true
}
class Factory(val app: Application) : ViewModelProvider.Factory {
override fun <T : ViewModel?> create(modelClass: Class<T>): T {
if (modelClass.isAssignableFrom(ContactsViewModel::class.java)) {
#Suppress("UNCHECKED_CAST")
return ContactsViewModel(app) as T
}
throw IllegalArgumentException("Unable to construct viewmodel")
}
}
}
The working activity, ContactActivity.kt
package fr.dleurs.android.contactapp.ui.main
import android.app.Activity
import android.content.Intent
import android.os.Bundle
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.lifecycle.ViewModelProvider
import androidx.viewpager.widget.ViewPager
import com.google.android.material.tabs.TabLayout
import fr.dleurs.android.contactapp.R
import fr.dleurs.android.contactapp.database.ContactDatabase
import fr.dleurs.android.contactapp.model.Contact
import fr.dleurs.android.contactapp.model.asDatabaseModel
import fr.dleurs.android.contactapp.ui.detailsContact.DetailsContactActivity
import fr.dleurs.android.contactapp.ui.newModifyContact.CreateModifyContactActivity
import fr.dleurs.android.contactapp.utils.FabButtonInterface
import fr.dleurs.android.contactapp.viewmodel.ContactsViewModel
import timber.log.Timber
public val createContactActivityRequestCode = 1
public val detailContactActivityRequestCode = 2
class ContactActivity : AppCompatActivity(), FabButtonInterface, OnClick {
private lateinit var viewModel: ContactsViewModel
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
viewModel = ViewModelProvider(
this,
ContactsViewModel.Factory(this.application)
).get(ContactsViewModel::class.java)
setContentView(R.layout.contact_activity)
val sectionsPagerAdapter =
SectionsPagerAdapter(context = this, fm = supportFragmentManager, onClick = this)
val viewPager: ViewPager = findViewById(R.id.contentFragment)
viewPager.adapter = sectionsPagerAdapter
val tabs: TabLayout = findViewById(R.id.tabs)
tabs.setupWithViewPager(viewPager)
}
override fun goToCreateContactActivity() {
Timber.i("Create a new contact started")
val intent = Intent(this, CreateModifyContactActivity::class.java)
startActivityForResult(intent, createContactActivityRequestCode)
}
fun goToDetailContactActivity(contactId: String) {
Timber.i("Details contact started")
val intent = Intent(this, DetailsContactActivity::class.java)
intent.putExtra("contactId", contactId)
startActivity(intent)
}
override fun onActivityResult(requestCode: Int, resultCode: Int, intentData: Intent?) {
super.onActivityResult(requestCode, resultCode, intentData)
if (requestCode == createContactActivityRequestCode && resultCode == Activity.RESULT_OK) {
Timber.i("Intent received")
val response = intentData?.getParcelableExtra<ContactDatabase>("contact")
val newContact = ContactDatabase(
firstName = response!!.firstName,
lastName = response!!.lastName,
mail = response!!.mail
)
Timber.i("Intent received + " + newContact.toString())
viewModel.insertContact(newContact)
} else if (requestCode == createContactActivityRequestCode && resultCode == Activity.RESULT_CANCELED) {
} else if (requestCode == detailContactActivityRequestCode) {
Timber.i("DetailsContactActivity intent :" + intent.toString() + ", intentData: "+intentData.toString()+"resultCode :" + resultCode.toString())
if (resultCode == Activity.RESULT_CANCELED) {
Timber.i("DetailsContactActivity closed with no action")
}
} else {
Toast.makeText(this, "Error creating contact", Toast.LENGTH_LONG).show()
}
}
override fun onItemClick(contactId: String) {
Timber.i("On Item clicked + " + contactId)
goToDetailContactActivity(contactId)
}
}
Thank you for your help !

here you are passing ContactsViewModel::class.java. You have to pass ContactViewModel::class.java
class Factory(val app: Application) : ViewModelProvider.Factory {
override fun <T : ViewModel?> create(modelClass: Class<T>): T {
if (modelClass.isAssignableFrom(ContactViewModel::class.java)) {
#Suppress("UNCHECKED_CAST")
return ContactViewModel(app) as T
}
throw IllegalArgumentException("Unable to construct viewmodel")
}
}

How to share bitmap from secoend activity to first activity

i m new to kotlin and i am trying to send bitmap. like i in recyclerview card i add an image and after that i have to edit the card so for that how can i send the bitmap there can anyone please help me in this. Thanks in advance.
here is my code:
MainActivity.kt:-
package com.example.itemgetset
import android.annotation.SuppressLint
import android.app.Activity
import android.content.Intent
import android.os.Bundle
import android.os.Handler
import android.os.Message
import android.util.Log
import android.view.Menu
import android.view.MenuItem
import android.view.View
import android.widget.Button
import android.widget.LinearLayout
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.recyclerview.widget.GridLayoutManager
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
#Suppress("DEPRECATION")
class MainActivity : AppCompatActivity() {
lateinit var activity: Activity
val userList = ArrayList<ProductInfoGetSet>()
private lateinit var btnProductAdd: Button
lateinit var llEmptyView: LinearLayout
lateinit var llMain: LinearLayout
lateinit var recyclerView: RecyclerView
private lateinit var llFab: LinearLayout
private lateinit var linearLayoutManager: LinearLayoutManager
private lateinit var gridLayoutManager: GridLayoutManager
private lateinit var adapter: CustomAdapter
companion object {
var handler: Handler = Handler()
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
activity = this
initView()
onClicks()
setUpData()
handler = #SuppressLint("HandlerLeak")
object : Handler() {
override fun handleMessage(msg: Message) {
if (msg.what == 111) {
val temp: Temp = msg.obj as Temp
if (temp.id == "") {
userList.add(
ProductInfoGetSet(
(userList.size + 1).toString(),
temp.image,
temp.name,
temp.quantity,
temp.price,
temp.total
)
)
adapter = CustomAdapter(activity, userList)
recyclerView.adapter = adapter
} else {
for (i in userList.indices) {
if (userList[i].id == temp.id) {
userList[i].id = temp.id
userList[i].image = temp.image
userList[i].name = temp.name
userList[i].quantity = temp.quantity
userList[i].price = temp.price
userList[i].total = temp.total
}
}
adapter.notifyDataSetChanged()
}
}
if (userList.size > 0) {
llEmptyView.visibility = View.GONE
llMain.visibility = View.VISIBLE
} else {
llEmptyView.visibility = View.VISIBLE
llMain.visibility = View.GONE
}
}
}
}
private fun changeLayoutManager() {
if (recyclerView.layoutManager == linearLayoutManager) {
recyclerView.layoutManager = gridLayoutManager
} else {
recyclerView.layoutManager = linearLayoutManager
}
}
override fun onWindowFocusChanged(hasFocus: Boolean) {
super.onWindowFocusChanged(hasFocus)
if (hasFocus) Toast.makeText(applicationContext, "Phone Rotated", Toast.LENGTH_SHORT).show()
}
private fun initView() {
btnProductAdd = findViewById(R.id.btn_product_add)
llFab = findViewById(R.id.ll_fab)
llEmptyView = findViewById(R.id.llEmptyView)
llMain = findViewById(R.id.llMain)
recyclerView = findViewById(R.id.recycler_view)
recyclerView.layoutManager = LinearLayoutManager(this)
linearLayoutManager = LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false)
gridLayoutManager = GridLayoutManager(this, 2)
}
private fun onClicks() {
btnProductAdd.setOnClickListener {
val intent = Intent(this#MainActivity, AddDetails::class.java)
intent.putExtra("isFor", "Add")
startActivity(intent)
}
llFab.setOnClickListener {
val intent = Intent(this#MainActivity, AddDetails::class.java)
intent.putExtra("isFor", "Add")
startActivity(intent)
}
}
private fun setUpData() {
if (userList.size > 0) {
llEmptyView.visibility = View.GONE
llMain.visibility = View.VISIBLE
} else {
llEmptyView.visibility = View.VISIBLE
llMain.visibility = View.GONE
}
}
override fun onCreateOptionsMenu(menu: Menu): Boolean {
menuInflater.inflate(R.menu.menu_main, menu)
return true
}
override fun onOptionsItemSelected(item: MenuItem): Boolean {
if (item.itemId == R.id.menu_view) {
if (userList.size > 0) {
changeLayoutManager()
}
return true
}
return super.onOptionsItemSelected(item)
}
}
CustomeAdapter.kt: -
package com.example.itemgetset
import android.R.attr.bitmap
import android.app.Activity
import android.app.AlertDialog
import android.content.ContentValues.TAG
import android.content.Intent
import android.graphics.Bitmap
import android.graphics.Bitmap.CompressFormat
import android.os.Build
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.LinearLayout
import android.widget.PopupMenu
import android.widget.TextView
import androidx.annotation.RequiresApi
import androidx.recyclerview.widget.RecyclerView
import com.google.android.material.snackbar.Snackbar
import java.io.ByteArrayOutputStream
#Suppress("UNREACHABLE_CODE")
class CustomAdapter(
private var activity: Activity,
private val userList: ArrayList<ProductInfoGetSet>,
) :
RecyclerView.Adapter<CustomAdapter.ViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
val itemview =
LayoutInflater.from(parent.context).inflate(R.layout.list_layout, parent, false)
return ViewHolder(itemview)
}
#RequiresApi(Build.VERSION_CODES.N)
override fun onBindViewHolder(holder: ViewHolder, position: Int) {
val productInfoGetSet: ProductInfoGetSet = userList[position]
holder.txtId.text = productInfoGetSet.id
holder.txtName.text = productInfoGetSet.name
holder.txtQuantity.text = productInfoGetSet.quantity
holder.txtPrice.text = productInfoGetSet.price
holder.txtTotal.text = productInfoGetSet.total
holder.imgList.setImageBitmap(productInfoGetSet.image)
val id = userList[position].id
Log.e(TAG, "List item ID: $id")
holder.buttonViewOption.setOnClickListener {
val popup = PopupMenu(activity, holder.buttonViewOption)
popup.inflate(R.menu.pop_menu)
popup.setOnMenuItemClickListener { item ->
when (item.itemId) {
R.id.edit -> {
val intent = Intent(activity, AddDetails::class.java)
intent.putExtra("isFor", "Update")
val bStream = ByteArrayOutputStream()
productInfoGetSet.image?.compress(CompressFormat.PNG, 100, bStream)
val byteArray = bStream.toByteArray()
intent.putExtra("imagebitmap", byteArray)
intent.putExtra("id", productInfoGetSet.id)
intent.putExtra("name", productInfoGetSet.name)
intent.putExtra("quantity", productInfoGetSet.quantity)
intent.putExtra("price", productInfoGetSet.price)
intent.putExtra("total", productInfoGetSet.total)
activity.startActivity(intent)
}
R.id.delete -> {
val builder = AlertDialog.Builder(activity)
builder.setTitle("Delete")
builder.setMessage("Do you want to delete the item?")
builder.setPositiveButton("Yes") { _, _ ->
userList.removeAt(position)
notifyItemRemoved(position)
val snack = Snackbar
.make(
holder.linearly,
"Item was removed from the list.",
Snackbar.LENGTH_SHORT
)
snack.show()
}
builder.setNegativeButton("No") { _, _ ->
}
val dialog: AlertDialog = builder.create()
dialog.show()
}
}
false
}
popup.show()
}
}
override fun getItemId(position: Int): Long {
return position.toLong()
}
override fun getItemCount(): Int {
return userList.size
}
class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
val txtName = itemView.findViewById(R.id.txt_name) as TextView
val txtId = itemView.findViewById(R.id.txt_id) as TextView
var imgList = itemView.findViewById(R.id.img_list) as ImageView
val txtQuantity = itemView.findViewById(R.id.txt_quantity) as TextView
val txtPrice = itemView.findViewById(R.id.txt_price) as TextView
val txtTotal = itemView.findViewById(R.id.txt_result1) as TextView
val linearly: LinearLayout = itemView.findViewById(R.id.linearlayout)
val buttonViewOption = itemView.findViewById<View>(R.id.txt_Options) as TextView
}
}
AddDetails:-
package com.example.itemgetset
import android.annotation.SuppressLint
import android.content.Intent
import android.content.pm.PackageManager
import android.database.Cursor
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import android.net.Uri
import android.os.Build
import android.os.Bundle
import android.os.Message
import android.provider.MediaStore
import android.text.Editable
import android.text.TextWatcher
import android.util.Log
import android.widget.*
import androidx.appcompat.app.AppCompatActivity
#Suppress("DEPRECATION")
class AddDetails : AppCompatActivity() {
private lateinit var btnSubmit: Button
private lateinit var edtName: EditText
private lateinit var img_add: ImageView
private var edtQuantity: EditText? = null
private var edtPrice: EditText? = null
private var txtResult: TextView? = null
private var txtTotal: TextView? = null
private var bitmap: Bitmap? = null
companion object {
private const val IMAGE_PICK_CODE = 1000
private const val PERMISSION_CODE = 1001
}
#SuppressLint("SetTextI18n", "ResourceType")
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.add_item)
supportActionBar?.hide()
findViewById()
onclick()
edtPrice?.addTextChangedListener(priceWatcher)
edtQuantity?.addTextChangedListener(textWatcher)
if (intent.getStringExtra("isFor").equals("Update")) {
val byteArray = intent.getByteArrayExtra("imagebitmap")
bitmap = byteArray?.size?.let { BitmapFactory.decodeByteArray(byteArray, 0, it) }
img_add.setImageBitmap(bitmap)
edtName.setText(intent.getStringExtra("name"))
edtQuantity?.setText(intent.getStringExtra("quantity"))
edtPrice?.setText(intent.getStringExtra("price"))
}
}
private fun findViewById() {
btnSubmit = findViewById(R.id.btn_submit)
txtResult = findViewById(R.id.txt_result)
txtTotal = findViewById(R.id.txt_final)
edtName = findViewById(R.id.edt_name)
edtQuantity = findViewById(R.id.edt_quantity)
edtPrice = findViewById(R.id.edt_price)
img_add = findViewById(R.id.img_add)
}
#SuppressLint("ResourceType")
private fun onclick() {
btnSubmit.setOnClickListener {
when {
edtName.text.trim().isEmpty() -> {
edtName.error = "Please Enter Product Name"
Toast.makeText(
applicationContext,
"Please Enter Product Name",
Toast.LENGTH_SHORT
)
.show()
}
edtQuantity?.text?.trim()?.isEmpty()!! -> {
edtQuantity?.error = "Please Enter Product Quantity"
Toast.makeText(
applicationContext,
"Please Enter Product Quantity",
Toast.LENGTH_SHORT
).show()
}
edtPrice?.text?.trim()?.isEmpty()!! -> {
edtPrice?.error = "Please Enter Product Price"
Toast.makeText(
applicationContext,
"Please Enter Product Price",
Toast.LENGTH_SHORT
)
.show()
}
else -> {
Toast.makeText(
applicationContext,
"Product Added Successfully ",
Toast.LENGTH_SHORT
).show()
val temp = Temp()
temp.image = bitmap
temp.name = edtName.text.toString()
temp.quantity = edtQuantity?.text.toString()
temp.price = edtPrice?.text.toString()
temp.total = txtResult?.text.toString()
if (intent.getStringExtra("isFor").equals("Update")) {
temp.id = intent.getStringExtra("id").toString()
}
val message: Message = Message.obtain()
message.what = 111
message.obj = temp
MainActivity.handler.sendMessage(message)
finish()
}
}
}
img_add.setOnClickListener {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (checkSelfPermission(android.Manifest.permission.READ_EXTERNAL_STORAGE) ==
PackageManager.PERMISSION_DENIED
) {
val permissions = arrayOf(android.Manifest.permission.READ_EXTERNAL_STORAGE)
requestPermissions(permissions, PERMISSION_CODE)
} else {
pickImageFromGallery()
}
} else {
pickImageFromGallery()
}
}
}
private val priceWatcher = object : TextWatcher {
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
}
override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
}
override fun afterTextChanged(s: Editable?) {
val num1: String = edtPrice?.text.toString()
val mnum1 = num1.toIntOrNull()
val num2: String = edtQuantity?.text.toString()
val mnum2 = num2.toIntOrNull()
val res = mnum2?.let { mnum1?.times(it) }
Log.e("<><> res1", res.toString())
txtResult?.text = res.toString()
}
}
private val textWatcher = object : TextWatcher {
override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
}
override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
}
override fun afterTextChanged(s: Editable?) {
val num1: String = edtPrice?.text.toString()
val mnum1 = num1.toIntOrNull()
val num2: String = edtQuantity?.text.toString()
val mnum2 = num2.toIntOrNull()
val res = mnum2?.let { mnum1?.times(it) }
Log.e("<><> res1", res.toString())
txtResult?.text = res.toString()
}
}
override fun onRequestPermissionsResult(
requestCode: Int,
permissions: Array<out String>,
grantResults: IntArray,
) {
when (requestCode) {
PERMISSION_CODE -> {
if (grantResults.isNotEmpty() && grantResults[0] ==
PackageManager.PERMISSION_GRANTED
) {
pickImageFromGallery()
} else {
Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show()
}
}
}
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
}
private fun pickImageFromGallery() {
val intent = Intent(Intent.ACTION_PICK)
intent.type = "image/*"
startActivityForResult(intent, IMAGE_PICK_CODE)
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (requestCode == IMAGE_PICK_CODE && resultCode == RESULT_OK && data != null) {
img_add.setImageURI(data.data)
val pickedImage: Uri? = data.data
val filePath = arrayOf(MediaStore.Images.Media.DATA)
val cursor: Cursor? =
pickedImage?.let { contentResolver.query(it, filePath, null, null, null) }
cursor?.moveToFirst()
val imagePath: String = cursor!!.getString(cursor.getColumnIndex(filePath[0]))
val options = BitmapFactory.Options()
options.inPreferredConfig = Bitmap.Config.ARGB_8888
bitmap = BitmapFactory.decodeFile(imagePath, options)
cursor.close()
}
}
}
Logcat: -
2020-09-14 19:46:21.834 26263-26263/? E/mple.itemgetse: Unknown bits set in runtime_flags: 0x28000
2020-09-14 19:46:43.406 26263-26263/com.example.itemgetset E/<><> res1: null
2020-09-14 19:46:43.754 26263-26263/com.example.itemgetset E/<><> res1: null
2020-09-14 19:46:45.992 26263-26263/com.example.itemgetset E/<><> res1: 32
2020-09-14 19:46:47.908 26263-26263/com.example.itemgetset E/<><> res1: null
2020-09-14 19:46:48.491 26263-26263/com.example.itemgetset E/<><> res1: 64
2020-09-14 19:46:51.002 26263-26263/com.example.itemgetset E/ContentValues: List item ID: 1
2020-09-14 19:46:54.533 26263-26263/com.example.itemgetset E/ContentValues: List item ID: 1
2020-09-14 19:46:55.167 26263-26263/com.example.itemgetset E/ContentValues: List item ID: 1
2020-09-14 19:47:02.993 26263-26263/com.example.itemgetset E/JavaBinder: !!! FAILED BINDER TRANSACTION !!! (parcel size = 16777976)
2020-09-14 19:47:02.995 26263-26263/com.example.itemgetset E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.itemgetset, PID: 26263
java.lang.RuntimeException: Failure from system
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1904)
at android.app.Activity.startActivityForResult(Activity.java:5215)
at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:676)
at android.app.Activity.startActivityForResult(Activity.java:5173)
at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:663)
at android.app.Activity.startActivity(Activity.java:5544)
at android.app.Activity.startActivity(Activity.java:5512)
at com.example.itemgetset.CustomAdapter$onBindViewHolder$1$1.onMenuItemClick(CustomAdapter.kt:69)
at android.widget.PopupMenu$1.onMenuItemSelected(PopupMenu.java:108)
at com.android.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:787)
at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:151)
at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:934)
at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:924)
at com.android.internal.view.menu.MenuPopup.onItemClick(MenuPopup.java:128)
at android.widget.AdapterView.performItemClick(AdapterView.java:330)
at android.widget.AbsListView.performItemClick(AbsListView.java:1257)
at android.widget.AbsListView$PerformClick.run(AbsListView.java:3265)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7707)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:516)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)
Caused by: android.os.TransactionTooLargeException: data parcel size 16777976 bytes
at android.os.BinderProxy.transactNative(Native Method)
at android.os.BinderProxy.transact(BinderProxy.java:557)
at android.app.IActivityTaskManager$Stub$Proxy.startActivity(IActivityTaskManager.java:3887)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1898)
at android.app.Activity.startActivityForResult(Activity.java:5215) 
at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:676) 
at android.app.Activity.startActivityForResult(Activity.java:5173) 
at androidx.fragment.app.FragmentActivity.startActivityForResult(FragmentActivity.java:663) 
at android.app.Activity.startActivity(Activity.java:5544) 
at android.app.Activity.startActivity(Activity.java:5512) 
at com.example.itemgetset.CustomAdapter$onBindViewHolder$1$1.onMenuItemClick(CustomAdapter.kt:69) 
at android.widget.PopupMenu$1.onMenuItemSelected(PopupMenu.java:108) 
at com.android.internal.view.menu.MenuBuilder.dispatchMenuItemSelected(MenuBuilder.java:787) 
at com.android.internal.view.menu.MenuItemImpl.invoke(MenuItemImpl.java:151) 
at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:934) 
at com.android.internal.view.menu.MenuBuilder.performItemAction(MenuBuilder.java:924) 
at com.android.internal.view.menu.MenuPopup.onItemClick(MenuPopup.java:128) 
at android.widget.AdapterView.performItemClick(AdapterView.java:330) 
at android.widget.AbsListView.performItemClick(AbsListView.java:1257) 
at android.widget.AbsListView$PerformClick.run(AbsListView.java:3265) 
at android.os.Handler.handleCallback(Handler.java:883) 
at android.os.Handler.dispatchMessage(Handler.java:100) 
at android.os.Looper.loop(Looper.java:214) 
at android.app.ActivityThread.main(ActivityThread.java:7707) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:516) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950) 
From Customadpate to adddetails i have to send the bitmap.

In onActivityResult you receive the picked image Uri, this can then be passed from one activity to the next by converting the Uri to a string then attaching it to the intent with .putExtra(), as seen below:
val intent = Intent(this, Activity::class.java)
intent.putExtra("Uri", imageUri)
startActivity(intent)
The information can then be received in the next activity by:
if (intent.getStringExtra("Uri") != null){
val uri = intent.getStringExtra("Uri")
}
The Uri will be in string form so all you have to do is convert it back to Uri form.
To convert bitmap to Uri , use the code below:
public Uri getImageUri(Context inContext, Bitmap inImage) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
inImage.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
String path = MediaStore.Images.Media.insertImage(inContext.getContentResolver(), inImage, "Title", null);
return Uri.parse(path);
}

How to solve NullPointerException on LayoutInflaters?

I have been stuck on this issue for a bit of time now and I have looked through other questions on the subject. However, I do not fully understand their solutions and how it could be applied to my case.
Logcat
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.realtimechat/com.example.realtimechat.chats.ChatActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.LayoutInflater android.view.Window.getLayoutInflater()' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3022)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3259)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1950)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:214)
at android.app.ActivityThread.main(ActivityThread.java:7073)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.LayoutInflater android.view.Window.getLayoutInflater()' on a null object reference
at android.app.Activity.getLayoutInflater(Activity.java:4435)
at com.example.realtimechat.chats.ChatActivity.<init>(ChatActivity.kt:66)
at java.lang.Class.newInstance(Native Method)
at android.app.AppComponentFactory.instantiateActivity(AppComponentFactory.java:69)
at androidx.core.app.CoreComponentFactory.instantiateActivity(CoreComponentFactory.java:45)
at android.app.Instrumentation.newActivity(Instrumentation.java:1215)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3010)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3259) 
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78) 
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108) 
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1950) 
at android.os.Handler.dispatchMessage(Handler.java:106) 
at android.os.Looper.loop(Looper.java:214) 
at android.app.ActivityThread.main(ActivityThread.java:7073) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:494) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:965) 
Chat Activity
package com.example.realtimechat.chats
import android.app.Activity
import android.content.Context
import android.content.Intent
import android.content.Intent.ACTION_PICK
import android.content.pm.PackageManager
import android.graphics.Bitmap
import android.net.Uri
import android.os.Bundle
import android.provider.MediaStore
import android.provider.MediaStore.ACTION_IMAGE_CAPTURE
import android.view.View
import android.view.inputmethod.InputMethodManager
import android.widget.EditText
import android.widget.ImageView
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.ActivityCompat
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout
import com.example.realtimechat.R
import com.example.realtimechat.common.Constants
import com.example.realtimechat.common.Extras
import com.example.realtimechat.common.NodeNames
import com.example.realtimechat.common.Utils
import com.google.android.material.bottomsheet.BottomSheetDialog
import com.google.firebase.auth.FirebaseAuth
import com.google.firebase.database.*
import com.google.firebase.storage.FirebaseStorage
import java.io.ByteArrayInputStream
import java.io.ByteArrayOutputStream
class ChatActivity : AppCompatActivity(), View.OnClickListener {
private lateinit var etMessage: EditText
private lateinit var ivSend: ImageView
private lateinit var ivAttachment: ImageView
private lateinit var mAuth: FirebaseAuth
private lateinit var mRootRef: DatabaseReference
private lateinit var currentUserId: String
private lateinit var chatUserId: String
private lateinit var rvMessages: RecyclerView
private lateinit var srlMessages: SwipeRefreshLayout
private lateinit var messagesAdapter: MessagesAdapter
private lateinit var messagesList: MutableList<MessageModel>
private var currentPage = 1
companion object {
private const val RECORD_PER_PAGE = 30
}
private val REQUEST_CODE_CAPTURE_IMAGE=102
private val REQUEST_CODE_PICK_IMAGE=101
private val REQUEST_CODE_PICK_VIDEO=103
private lateinit var databaseReferenceMessages: DatabaseReference
private lateinit var childEventListener: ChildEventListener
private lateinit var bottomSheetDialog: BottomSheetDialog
val view: View = layoutInflater.inflate(R.layout.chat_file_options, null)
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_chat)
etMessage = findViewById(R.id.etMessage)
ivSend = findViewById(R.id.ivSend)
ivAttachment = findViewById(R.id.ivAttachment)
ivSend.setOnClickListener(this)
ivAttachment.setOnClickListener(this)
mAuth = FirebaseAuth.getInstance()
mRootRef = FirebaseDatabase.getInstance().reference
currentUserId = mAuth.currentUser!!.uid
if(intent.hasExtra(Extras.USER_KEY)){
chatUserId = intent.getStringExtra(Extras.USER_KEY)!!
}
rvMessages = findViewById(R.id.rvMessages)
srlMessages = findViewById(R.id.srlMessages)
val layoutManager = LinearLayoutManager(applicationContext)
layoutManager.orientation = RecyclerView.VERTICAL
rvMessages.layoutManager = layoutManager
rvMessages.setHasFixedSize(true)
messagesList = ArrayList()
messagesAdapter = MessagesAdapter(this, messagesList)
rvMessages.adapter = messagesAdapter
loadMessages()
rvMessages.scrollToPosition(messagesList.size-1)
srlMessages.setOnRefreshListener(object: SwipeRefreshLayout.OnRefreshListener{
override fun onRefresh() {
currentPage++
loadMessages()
}
})
bottomSheetDialog = BottomSheetDialog(this)
view.findViewById<View>(R.id.llCamera).setOnClickListener(this)
view.findViewById<View>(R.id.llGallery).setOnClickListener(this)
view.findViewById<View>(R.id.llVideo).setOnClickListener(this)
view.findViewById<View>(R.id.ivClose).setOnClickListener(this)
bottomSheetDialog.setContentView(view)
}
//send messages
private fun sendMessage(msg: String, msgType: String, pushId: String){
try {
if (msg != "") {
val messageMap = HashMap<Any, Any>()
messageMap[NodeNames.MESSAGE_ID] = pushId
messageMap[NodeNames.MESSAGE] = msg
messageMap[NodeNames.MESSAGE_TYPE] = msgType
messageMap[NodeNames.MESSAGE_FROM] = currentUserId
messageMap[NodeNames.MESSAGE_TIME] = ServerValue.TIMESTAMP
val currentUserRef = NodeNames.MESSAGES + "/" + currentUserId + "/" + chatUserId
val chatUserRef = NodeNames.MESSAGES + "/" + chatUserId + "/" + currentUserId
val messageUserMap = mutableMapOf<String, Any>()
messageUserMap["$currentUserRef/$pushId"] = messageMap
messageUserMap["$chatUserRef/$pushId"] = messageMap
etMessage.setText("")
mRootRef.updateChildren(messageUserMap, object : DatabaseReference.CompletionListener {
override fun onComplete(databaseError: DatabaseError?, databaseReference: DatabaseReference) {
if (databaseError != null) {
Toast.makeText(applicationContext, "Failed to send message: ${databaseError.message}", Toast.LENGTH_SHORT).show()
}
run{
Toast.makeText(applicationContext, "Message sent successfully!", Toast.LENGTH_SHORT).show()
}
}
})
}
} catch (e: Exception) {
Toast.makeText(applicationContext, "Failed to send message: ${e.localizedMessage}", Toast.LENGTH_SHORT).show()
}
}
private fun loadMessages(){
messagesList.clear()
databaseReferenceMessages = mRootRef.child(NodeNames.MESSAGES).child(currentUserId).child(chatUserId)
val messageQuery: Query = databaseReferenceMessages.limitToLast(currentPage * RECORD_PER_PAGE)
childEventListener = object: ChildEventListener{
override fun onChildAdded(snapshot: DataSnapshot, previousChildName: String?) {
val message: MessageModel = snapshot.getValue(MessageModel::class.java)!!
messagesList.add(message)
messagesAdapter.notifyDataSetChanged()
rvMessages.scrollToPosition(messagesList.size-1)
srlMessages.isRefreshing = false
}
override fun onChildChanged(snapshot: DataSnapshot, previousChildName: String?) {
}
override fun onChildRemoved(snapshot: DataSnapshot) {
}
override fun onChildMoved(snapshot: DataSnapshot, previousChildName: String?) {
}
override fun onCancelled(error: DatabaseError) {
srlMessages.isRefreshing = false
}
}
messageQuery.addChildEventListener(childEventListener)
}
private fun uploadFile(uri: Uri, messageType: String){
val databaseReference = mRootRef.child(NodeNames.MESSAGES).child(currentUserId).child(chatUserId).push()
val pushId = databaseReference.key!!
val folderName =
if (messageType == Constants.MESSAGE_TYPE_VIDEO) Constants.MESSAGE_VIDEOS else Constants.MESSAGE_IMAGES
val fileName: String =
if (messageType == Constants.MESSAGE_TYPE_VIDEO) "$pushId.mp4" else "$pushId.jpg"
val storageReference = FirebaseStorage.getInstance().reference
val fileReference = storageReference.child(folderName).child(fileName)
fileReference.putFile(uri)
}
private fun uploadBytes(bytes: ByteArrayOutputStream, messageType: String){
val databaseReference = mRootRef.child(NodeNames.MESSAGES).child(currentUserId).child(chatUserId).push()
val pushId = databaseReference.key!!
val folderName =
if (messageType == Constants.MESSAGE_TYPE_VIDEO) Constants.MESSAGE_VIDEOS else Constants.MESSAGE_IMAGES
val fileName: String =
if (messageType == Constants.MESSAGE_TYPE_VIDEO) "$pushId.mp4" else "$pushId.jpg"
val storageReference = FirebaseStorage.getInstance().reference
val fileReference = storageReference.child(folderName).child(fileName)
fileReference.putBytes(bytes.toByteArray())
}
//if any objects are clicked
override fun onClick(v: View?) {
when(v!!.id){
R.id.ivSend -> {
val utility = Utils()
if(utility.connectionAvailable(this)) {
val message = etMessage.text.toString().trim()
val messageType = NodeNames.MESSAGE_TYPE_TEXT
val userMessagePush =
mRootRef.child(NodeNames.MESSAGES).child(currentUserId).child(chatUserId)
.push()
val pushId = userMessagePush.key
sendMessage(message, messageType, pushId!!)
}else{
Toast.makeText(applicationContext, "No Internet connection available", Toast.LENGTH_SHORT).show()
}
}
R.id.ivAttachment -> {
if(ActivityCompat.checkSelfPermission(this, android.Manifest.permission.READ_EXTERNAL_STORAGE)==PackageManager.PERMISSION_GRANTED){
if(bottomSheetDialog!=null){
bottomSheetDialog.show()
}
}else{
ActivityCompat.requestPermissions(this, arrayOf(android.Manifest.permission.READ_EXTERNAL_STORAGE), 1)
}
val inputMethodManager = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
if(inputMethodManager!=null){
inputMethodManager.hideSoftInputFromWindow(view.windowToken, 0)
}
}
R.id.llCamera -> {
bottomSheetDialog.dismiss()
val intentCamera = Intent(ACTION_IMAGE_CAPTURE)
startActivityForResult(intentCamera, REQUEST_CODE_CAPTURE_IMAGE)
}
R.id.llGallery -> {
bottomSheetDialog.dismiss()
val intentImage = Intent(ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI)
startActivityForResult(intentImage, REQUEST_CODE_PICK_IMAGE)
}
R.id.llVideo -> {
bottomSheetDialog.dismiss()
val intentVideo = Intent(ACTION_PICK, MediaStore.Video.Media.EXTERNAL_CONTENT_URI)
startActivityForResult(intentVideo, REQUEST_CODE_PICK_VIDEO)
}
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if(resultCode== Activity.RESULT_OK){
if(requestCode==REQUEST_CODE_CAPTURE_IMAGE) {
val bitMap = data!!.extras!!.get("data") as Bitmap
val bytes = ByteArrayOutputStream()
bitMap.compress(Bitmap.CompressFormat.JPEG, 100, bytes)
uploadBytes(bytes, Constants.MESSAGE_TYPE_IMAGE)
}else if(requestCode==REQUEST_CODE_PICK_IMAGE){
val uri = data!!.data!!
uploadFile(uri, Constants.MESSAGE_TYPE_IMAGE)
}else if(requestCode==REQUEST_CODE_PICK_VIDEO){
val uri = data!!.data!!
uploadFile(uri, Constants.MESSAGE_TYPE_VIDEO)
}
}
}
override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
if(requestCode==1){
if(grantResults.size>1 && grantResults[0]==PackageManager.PERMISSION_GRANTED){
if(bottomSheetDialog!=null){
bottomSheetDialog.show()
}
}else{
Toast.makeText(this, "Permission needed", Toast.LENGTH_SHORT).show()
}
}
}
}
If anyone could explain (in an easy manner) how these types of problems could be approached and solved and how to solve it in my case, it would be greatly appreciated!

layoutInflater hasn't been instantiated yet. When doing anything with views, you pretty much have to wait until the onCreate method. So something like this:
var view: View? = null
// OR
lateinit var view: View
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_chat)
view = layoutInflater.inflate(R.layout.chat_file_options, null)
......
}