How to remove fragment disappearance bug in viewPager on back in FragNav on kotlin
`abstract class TabsFragment : BaseFragment() {
val fragment: ArrayList = arrayListOf()
inner class PagerAdapter(fragmentManager: FragmentManager) :
FragmentStatePagerAdapter(fragmentManager, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT) {
override fun destroyItem(viewGroup: ViewGroup, i: Int, obj: Any) {
Intrinsics.areEqual(viewGroup, "container")
Intrinsics.areEqual(obj, "object")
}
override fun getCount(): Int {
for(index in 0..this#TabsFragment.count()) {
fragment.add(index, BaseFragment())
}
return this#TabsFragment.count()
}
override fun getPageTitle(i: Int): CharSequence? {
return this#TabsFragment.titleTab(i)
}
override fun getItem(position: Int): BaseFragment {
if(!fragment.contains(this#TabsFragment.tabItems(position))) {
fragment.removeAt(position)
fragment.add(position, this#TabsFragment.tabItems(position))
return this#TabsFragment.tabItems(position)
} else {
return fragment[position]
}
}
}
abstract fun tabItems(i: Int): BaseFragment
abstract fun titleTab(i: Int): String?
abstract fun count(): Int
override fun onActivityResult(i: Int, i2: Int, intent: Intent?) {
super.onActivityResult(i, i2, intent)
if (i == 100 && i2 == -1 && intent != null) {
val stringArrayListExtra =
intent.getStringArrayListExtra("android.speech.extra.RESULTS")
val str = stringArrayListExtra!![0]
//EventBusKt.m30817a(OnSearch(str))
}
}
override fun onCreateView(
layoutInflater: LayoutInflater,
viewGroup: ViewGroup?,
bundle: Bundle?
): View? {
val inflate: View =
layoutInflater.inflate(R.layout.fragment_home, viewGroup, false)
//EventBus.getDefault().register(this)
inflate.search_cardView.setOnClickListener {
mFragmentNavigation.pushFragment(SearchFragment.newInstance(mInt + 1))
}
inflate.settings.setOnClickListener {
mFragmentNavigation.pushFragment(MainFragment.newInstance(mInt + 1), right = true)
}
inflate.view_pager.currentItem = PreferenceManager.getDefaultSharedPreferences(requireContext()).getString("home_default_page", "1")?.toInt() ?: 1
val viewPager = inflate.findViewById<View>(R.id.view_pager) as ViewPager
viewPager.adapter = PagerAdapter(childFragmentManager)
//viewPager.offscreenPageLimit = count() - 1
//viewPager.offscreenPageLimit = 5
(inflate.findViewById<View>(R.id.tabs) as TabLayout).setupWithViewPager(viewPager)
return inflate
}
private var BadgeCount: Int? = null
override fun onSaveInstanceState(savedInstanceState: Bundle) {
super.onSaveInstanceState(savedInstanceState)
BadgeCount?.let { savedInstanceState.putInt("BadgeCount", it) }
}
}`
Related
So I tried to create multi views recyclerview in kotlin, but sadly it did not work.The recyclerview does not display on the screen. It worth to mention that I tried to set the orientation as vertical in my layout files, also added all the dependencies and things needed. Can anyone please help me with that?
My MainActivity.class
#AndroidEntryPoint
class MainActivity : AppCompatActivity() {
lateinit var binding: ActivityMainBinding
lateinit var adapter: NumbersAdapter
lateinit var recyclerView: RecyclerView
var list: List<Nums> = listOf(Nums(1,false))
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = ActivityMainBinding.inflate(layoutInflater)
setContentView(binding.root)
updateAll()
}
fun updateAll(){
binding.recyclerview.apply {
val layoutManager = LinearLayoutManager(this#MainActivity)
adapter = NumbersAdapter(list)
adapter = adapter
}}}
My Adapter
class NumbersAdapter(
var list: List<Nums>,
): RecyclerView.Adapter<RecyclerView.ViewHolder>() {
class RedViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
val name = itemView.findViewById<TextView>(R.id.red_number)
fun bindRed(number: Nums) {
name.text = number.nums.toString()
}
}
class OrangeViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
val name = itemView.findViewById<TextView>(R.id.orange_number)
fun bindOrange(number: Nums) {
name.text = number.nums.toString()
}
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
if (viewType == 0) {
val redvView =
LayoutInflater.from(parent.context).inflate(R.layout.red_item, parent, false)
return RedViewHolder(redvView)
}
else {
val orangeView =
LayoutInflater.from(parent.context).inflate(R.layout.orange_item, parent, false)
return OrangeViewHolder(orangeView)
}
}
override fun getItemCount(): Int {
return list.size
}
override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
if(getItemViewType(position)==0){
(holder as RedViewHolder).bindRed(list[position])
}
else{
(holder as OrangeViewHolder).bindOrange(list[position])
}
}
override fun getItemViewType(position: Int): Int {
checkItem()
if(list[position].flag)
return 0
return 1
}
fun checkItem(){
for (i in list.indices) {
for (k in i + 1 until list.size) {
if (list[i].nums + list[k].nums == 0) {
list[i].flag = true
list[k].flag = true
}}}}}
in MainActivity.class change code in updateAll() function
fun updateAll(){
binding.recyclerView.apply {
adapter = NumbersAdapter(list)
layoutManager = LinearLayoutManager(this#MainActivity)
}
}
Like title I can't get correct item data, now imagine I have 2 recycler view list on my main fragment, one recycler view is vertical, other horizontal. If I use only one recycler everything is working fine. But when I add other one it's opening items randomly, but that random data openings only random both recyclers positions. Like my first recycler have [a,b,c,d] , other recycler have [e,f,g,h]. When I click first item of first recycler its go to other fragment which shows detail, its opening e instead of a, if I go back and retry it, its opening e again, retry and its a !! so its opening randomly, why this is happening why can't I open correct data? I put Log.d on my adapters and when I click recycler items, adapters log says u clicked "a" but my detail fragment shows me data of "e". What I am doing wrong? Here is my codes:(I have lots of codes so I share what we need)
my databases TvDAO:
import androidx.room.Dao
import androidx.room.Insert
import androidx.room.Query
import com.bt.filmdenemesi.model.Result
#Dao
interface TVDAO {
//Veri erişim nesnesi
#Insert
suspend fun insertAll(vararg movie: Result) : List<Long>
#Query("SELECT * FROM Result")
suspend fun getAllTV() : List<Result>
#Query("SELECT * FROM Result WHERE uuid2=:diziId")
suspend fun getTV(diziId:Int) : Result
#Query("DELETE FROM Result")
suspend fun deleteAllTV(
)
}
Tv Database:
#Database(entities = arrayOf(Result::class), version = 1)
abstract class TvDatabase: RoomDatabase() {
abstract fun tvDao(): TVDAO
companion object{
#Volatile
private var INSTANCE: TvDatabase?=null
fun databaseOlustur2(context: Context): TvDatabase {
return INSTANCE ?: synchronized(this){
val instance = Room.databaseBuilder(context.applicationContext,TvDatabase::class.java, "tvdatabase").fallbackToDestructiveMigration().build()
INSTANCE=instance
instance
}
}
}
}
movie Dao:
#Dao
interface MovieDAO {
//Veri erişim nesnesi
#Insert
suspend fun insertAll(vararg movie: Movie) : List<Long>
#Query("SELECT * FROM Movie")
suspend fun getAllMovie() : List<Movie>
#Query("Select * from Movie where uuid=:movieId")
suspend fun getMovie(movieId:Int) : Movie
#Query("Delete from Movie")
suspend fun deleteAllMovie(
)
}
movie database:
#Database(entities = arrayOf(Movie::class ), version = 1)
abstract class MovieDatabase:RoomDatabase() {
abstract fun movieDao(): MovieDAO
//singleton
companion object{
#Volatile private var instance: MovieDatabase? = null
private val lock = Any()
operator fun invoke(context: Context) = instance ?: synchronized(lock){
instance?: databaseOlustur(context).also {
instance = it
}
}
private fun databaseOlustur(context: Context)= Room.databaseBuilder(
context.applicationContext,
MovieDatabase::class.java,"moviedatabase").build()
}
}
my adapters:
class vizyonrecycleradapter(val diziListesi: ArrayList<Result>):RecyclerView.Adapter<vizyonrecycleradapter.DiziViewHolder>() {
class DiziViewHolder(itemview: View) : RecyclerView.ViewHolder(itemview)
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): DiziViewHolder {
val inflater = LayoutInflater.from(parent.context)
val view = inflater.inflate(R.layout.now_playing_recycler_row, parent, false)
return DiziViewHolder(view)
}
override fun onBindViewHolder(holder: DiziViewHolder, konum: Int) {
holder.itemView.tv_ismi.text=diziListesi.get(konum).name
val fotoDenemeleri = "https://image.tmdb.org/t/p/w500"
val fotobirlestirme: String = "${fotoDenemeleri}"+ diziListesi.get(konum).posterPath
holder.itemView.vizyon.gorselIndir(fotobirlestirme, placeHolderYap(holder.itemView.context))
holder.itemView.setOnClickListener {
val action2 = AnaSayfaDirections.actionAnaSayfaToDetaySayfasi(diziListesi[konum].uuid2)
Log.d("movie-title","${diziListesi.get(konum).originalName}")
Navigation.findNavController(it).navigate(action2)
}
}
override fun getItemCount(): Int {
return diziListesi.size
}
fun diziListesiniGuncelle(yeniDiziListesi: List<Result>) {
diziListesi.clear()
diziListesi.addAll(yeniDiziListesi)
notifyDataSetChanged()
}
}
other adapter:
class MovieRecyclerAdapter(val movieListesi: ArrayList<Movie>):RecyclerView.Adapter<MovieRecyclerAdapter.MovieViewHolder>() {
class MovieViewHolder(itemview: View) :RecyclerView.ViewHolder(itemview)
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MovieViewHolder {
val inflater = LayoutInflater.from(parent.context)
val view = inflater.inflate(R.layout.movie_recycler_row,parent,false)
return MovieViewHolder(view)
}
override fun onBindViewHolder(holder: MovieViewHolder, position: Int) {
holder.itemView.movieId.text= movieListesi.get(position).title
val fotoDenemeleri = "https://image.tmdb.org/t/p/w500"
val fotobirlestirme: String = "${fotoDenemeleri}"+movieListesi.get(position).backdropPath
holder.itemView.ana_foto.gorselIndir(fotobirlestirme, placeHolderYap(holder.itemView.context))
holder.itemView.setOnClickListener {
val action = AnaSayfaDirections.actionAnaSayfaToDetaySayfasi(movieListesi.get(position).uuid)
Log.d("movie-title","${movieListesi.get(position).title}")
Navigation.findNavController(it).navigate(action)
}
}
override fun getItemCount(): Int {
return movieListesi.size
}
fun movieListesiniGuncelle(yeniMovieListesi: List<Movie>){
movieListesi.clear()
movieListesi.addAll(yeniMovieListesi)
notifyDataSetChanged()
}
}
my base ViewModel:
open class BaseViewModel(application: Application) : AndroidViewModel(application),CoroutineScope {
private val job = Job()
override val coroutineContext: CoroutineContext
get() = job + Dispatchers.Main
override fun onCleared() {
super.onCleared()
job.cancel()
}
}
detail ViewModel:
class MovieDetayiViewModel(application: Application): BaseViewModel(application) {
val diziLiveData = MutableLiveData<Result>()
val movieLiveData = MutableLiveData<Movie>()
val aramaLiveData = MutableLiveData<ResultX>()
fun roomVerisiniAl2(uuid2: Int){
launch {
val dao2=TvDatabase.databaseOlustur2(getApplication()).tvDao().getTV(uuid2)
//val dizi = dao.getTV(uuid2)
diziLiveData.value=dao2
}
}
fun roomVerisiniAl(uuid: Int){
launch {
val dao= MovieDatabase(getApplication()).movieDao().getMovie(uuid)
// val film = dao.getMovie(uuid)
movieLiveData.value=dao
}
}
fun roomVerisiniAl3(uuid3: Int){
launch {
val dao= AramaDatabase(getApplication()).aramaDao()
val arama = dao.getMovie(uuid3)
aramaLiveData.value=arama
}
}
}
movielistviewmvdel:
class MovieListesiViewModel(application: Application): BaseViewModel(application){
val filmler = MutableLiveData<List<Movie>>()
val dizi = MutableLiveData<List<Result>>()
val arama = MutableLiveData<List<ResultX>>()
val filmHataMesaji = MutableLiveData<Boolean>()
val filmYukleniyor = MutableLiveData<Boolean>()
private var guncellemeZamani = 1 * 60 * 1000 * 1000 * 1000L
private val filmApiServis = FilmAPIServis()
private val disposable = CompositeDisposable()
private val disposable2 = CompositeDisposable()
private val disposable3 = CompositeDisposable()//kullan at
private val ozelSharedPrefences = OzelSharedPrefences(getApplication())
fun refreshData(){
val kaydedilmeZamani = ozelSharedPrefences.zamaniAl()
if(kaydedilmeZamani != null && kaydedilmeZamani !=0L && System.nanoTime()-kaydedilmeZamani < guncellemeZamani){
verileriSQLitedenAl()
}else{
verileriInternettenAl()
}
}
fun refreshFromInternet(){
verileriInternettenAl()
}
private fun verileriSQLitedenAl(){
filmYukleniyor.value = true
launch {
val movieListesi = MovieDatabase(getApplication()).movieDao().getAllMovie()
movieleriGoster(movieListesi)
val diziListesi = TvDatabase.databaseOlustur2(getApplication()).tvDao().getAllTV()
tvleriGoster(diziListesi)
}
launch {
val aramaListesi = AramaDatabase(getApplication()).aramaDao().getAllMovie()
aramalariGoster(aramaListesi)
}
}
private fun verileriInternettenAl(){
filmYukleniyor.value = true
disposable.add(
filmApiServis.getData()
.subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(object: DisposableSingleObserver<GetMoviesResponse>(){
override fun onSuccess(t: GetMoviesResponse) {
filmler.value= t.results
filmHataMesaji.value=false
filmYukleniyor.value=false
sqliteSakla(t.results)
// Toast.makeText(getApplication(),"Filmler internetten yüklendi",Toast.LENGTH_LONG).show()
}
override fun onError(e: Throwable) {
filmHataMesaji.value=true
filmYukleniyor.value=false
e.printStackTrace()
}
})
)
disposable2.add(
filmApiServis.getVizyondakiler()
.subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(object: DisposableSingleObserver<NowPlaying>(){
override fun onSuccess(t: NowPlaying) {
dizi.value= t.results
filmHataMesaji.value=false
filmYukleniyor.value=false
diziSqLiteSakla(t.results)
}
override fun onError(e: Throwable) {
filmHataMesaji.value=true
filmYukleniyor.value=false
e.printStackTrace()
}
})
)
}
fun aramayiInternettenAl(denemeText:String){
disposable3.add(
filmApiServis.getArama(denemeText)
.subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(object: DisposableSingleObserver<search>(){
override fun onSuccess(t: search) {
arama.value= t.results
aramaSqliteSakla(t.results)
}
override fun onError(e: Throwable) {
e.printStackTrace()
}
})
)
}
private fun movieleriGoster(filmlerListesi : List<Movie>?){
filmler.value= filmlerListesi
filmHataMesaji.value=false
filmYukleniyor.value=false
}
private fun tvleriGoster(tvListesi: List<Result>?){
dizi.value= tvListesi
filmHataMesaji.value=false
filmYukleniyor.value=false
}
private fun aramalariGoster(aramaListesi: List<ResultX>){
arama.value= aramaListesi
}
private fun sqliteSakla(filmListesi : List<Movie>){
launch {
val dao = MovieDatabase(getApplication()).movieDao()//dao içerisindeki fonksiyonlara ulaşmak için
dao.deleteAllMovie()
val uuidListesi = dao.insertAll(*filmListesi.toTypedArray())//tek tek movie haline getirmek için typed array. (*) koymak lazım
var i = 0
while (i < filmListesi.size){
filmListesi[i].uuid = uuidListesi[i].toInt()//uuid ye ulaştık modemdeki idleri eşledik
i = i + 1
}
movieleriGoster(filmListesi)
}
ozelSharedPrefences.zamaniKaydet(System.nanoTime())
}
private fun diziSqLiteSakla(diziListesi : List<Result>){
launch {
val dao2 = TvDatabase.databaseOlustur2(getApplication()).tvDao()//dao içerisindeki fonksiyonlara ulaşmak için
dao2.deleteAllTV()
val uuidListesi2 = dao2.insertAll(*diziListesi.toTypedArray())//tek tek movie haline getirmek için typed array. (*) koymak lazım
var i = 0
while (i < diziListesi.size){
diziListesi[i].uuid2 = uuidListesi2[i].toInt()//uuid ye ulaştık modemdeki idleri eşledik
i = i + 1
}
tvleriGoster(diziListesi)
}
ozelSharedPrefences.zamaniKaydet(System.nanoTime())
}
private fun aramaSqliteSakla(aramaListesi : List<ResultX>){
launch {
val dao = AramaDatabase(getApplication()).aramaDao()//dao içerisindeki fonksiyonlara ulaşmak için
dao.deleteAllMovie()
val uuidListesi3 = dao.insertAll(*aramaListesi.toTypedArray())//tek tek movie haline getirmek için typed array. (*) koymak lazım
var i = 0
while (i < aramaListesi.size){
aramaListesi[i].uuid3 = uuidListesi3[i].toInt()//uuid ye ulaştık modemdeki idleri eşledik
i = i + 1
}
arama.value?.let { aramalariGoster(it) }
}
ozelSharedPrefences.zamaniKaydet(System.nanoTime())
}
}
and this is my detail page fragment codes:
class DetaySayfasi : Fragment() {
private lateinit var viewModel : MovieDetayiViewModel
private lateinit var viewModel2: MovieListesiViewModel
var movieId : Int = 0
var getId : String =""
var listeIdAlma : Int = 0
private val ozelSharedPrefences2 = OzelSharedPrefences()
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
}
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_detay_sayfa, container, false)
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
viewModel2 = ViewModelProviders.of(this).get(MovieListesiViewModel::class.java)
viewModel2.refreshData()
arguments?.let {
movieId = DetaySayfasiArgs.fromBundle(it).movieID
}
viewModel = ViewModelProviders.of(this).get(MovieDetayiViewModel::class.java)
viewModel.roomVerisiniAl(movieId)
observeLiveData2()
viewModel.roomVerisiniAl2(movieId)
observeLiveData()
viewModel.roomVerisiniAl3(movieId)
dislike.setOnClickListener {
like()
}
like.setOnClickListener {
dislike()
}
observeLiveData3()
geri()
uygulamaPaylas()
}
fun observeLiveData(){
viewModel.movieLiveData.observe(viewLifecycleOwner, Observer { movie->
movie?.let {
getId = "movie/"+"${it.id}"
listeIdAlma= it.id
movie_title.text=it.title
movie_overview.text= it.overview
movie_rating_text.text=it.voteAverage.toFloat().toString()
movie_rating.rating = it.voteAverage.toFloat()/2
context?.let {
movie_backdrop.gorselIndir("https://image.tmdb.org/t/p/w500"+"${movie.backdropPath}", placeHolderYap(it))
movie_poster.gorselIndir("https://image.tmdb.org/t/p/w500"+"${movie.posterPath}", placeHolderYap(it))
}
if (!(listeIdAlma in ozelSharedPrefences2.korku())){
Log.d("ozelshared","${ozelSharedPrefences2.korku()}")
Log.d("listetaramaid","${listeIdAlma}")
like.visibility=View.GONE
dislike.visibility=View.VISIBLE
}else{
like.visibility=View.VISIBLE
dislike.visibility=View.GONE
Log.d("else","like kapalı olması lazım")
}
}
})
}
fun observeLiveData2(){
viewModel.diziLiveData.observe(viewLifecycleOwner, Observer { tv->
tv?.let {
getId = "tv/"+"${it.id}"
listeIdAlma = it.id
movie_title.text=it.name
movie_overview.text= it.overview
movie_rating_text.text= it.voteAverage?.toFloat().toString()
movie_rating.rating = it.voteAverage!!.toFloat()/2
context?.let {
movie_backdrop.gorselIndir("https://image.tmdb.org/t/p/w500"+"${tv.backdropPath}", placeHolderYap(it))
movie_poster.gorselIndir("https://image.tmdb.org/t/p/w500"+"${tv.posterPath}", placeHolderYap(it))
}
if (!(listeIdAlma in ozelSharedPrefences2.korku())){
Log.d("ozelshared","${ozelSharedPrefences2.korku()}")
Log.d("listetaramaid","${listeIdAlma}")
like.visibility=View.GONE
dislike.visibility=View.VISIBLE
}else{
like.visibility=View.VISIBLE
dislike.visibility=View.GONE
Log.d("else","like kapalı olması lazım")
}
}
})
}
fun observeLiveData3(){
viewModel.aramaLiveData.observe(viewLifecycleOwner, Observer { tv->
tv?.let {
if (it.voteAverage!=null){
getId = "tv/"+"${it.id}"
listeIdAlma = it.id!!
movie_title.text=it.name
movie_overview.text= it.overview
movie_rating_text.text= it.voteAverage?.toFloat().toString()
movie_rating.rating = it.voteAverage?.toFloat()!!/2
context?.let {
movie_backdrop.gorselIndir("https://image.tmdb.org/t/p/w500"+"${tv.backdropPath}", placeHolderYap(it))
movie_poster.gorselIndir("https://image.tmdb.org/t/p/w500"+"${tv.posterPath}", placeHolderYap(it))
}
}else{
getId = "tv/"+"${it.id}"
listeIdAlma = it.id!!
movie_title.text=it.name
movie_overview.text= it.name
movie_rating_text.text= ""
movie_rating.rating = 10F
context?.let {
movie_backdrop.gorselIndir("https://image.tmdb.org/t/p/w500"+"${tv.profile_path}", placeHolderYap(it))
movie_poster.gorselIndir("https://image.tmdb.org/t/p/w500"+"${tv.profile_path}", placeHolderYap(it))
}
}
if (!(listeIdAlma in ozelSharedPrefences2.korku())){
Log.d("ozelshared","${ozelSharedPrefences2.korku()}")
Log.d("listetaramaid","${listeIdAlma}")
like.visibility=View.GONE
dislike.visibility=View.VISIBLE
}else{
like.visibility=View.VISIBLE
dislike.visibility=View.GONE
Log.d("else","like kapalı olması lazım")
}
}
})
}
Like I said if I delete my one of recycler view its working perfect but if I use two recycler on same fragment I got wrong datas. Logs says I open correct data but it's not.
If u need my other codes to solve problem say it please I have lots of screens don't know which one I need to share to solve it.
i solved my problem but i don't know what i changed on background
i just seperate my one function to two function in MovieListesiViewmodel and gave a parameter and its worked like a miracle
private fun verileriInternettenAl(denemeInt: Int){
filmYukleniyor.value = true
disposable.add(
filmApiServis.getData(denemeInt)
.subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(object: DisposableSingleObserver<GetMoviesResponse>(){
override fun onSuccess(t: GetMoviesResponse) {
filmler.value= t.results
filmHataMesaji.value=false
filmYukleniyor.value=false
sqliteSakla(t.results)
// Toast.makeText(getApplication(),"Filmler internetten yüklendi",Toast.LENGTH_LONG).show()
}
override fun onError(e: Throwable) {
filmHataMesaji.value=true
filmYukleniyor.value=false
e.printStackTrace()
}
})
)
}
fun verileriInternettenAl2(){
disposable2.add(
filmApiServis.getVizyondakiler()
.subscribeOn(Schedulers.newThread())
.observeOn(AndroidSchedulers.mainThread())
.subscribeWith(object: DisposableSingleObserver<NowPlaying>(){
override fun onSuccess(t: NowPlaying) {
dizi.value= t.results
filmHataMesaji.value=false
filmYukleniyor.value=false
diziSqLiteSakla(t.results)
}
override fun onError(e: Throwable) {
filmHataMesaji.value=true
filmYukleniyor.value=false
e.printStackTrace()
}
})
)
}
I have seen many questions like this but they are not the same as my situation and I couldn't use those solutions.
I have a fragment (OrdersByStatusFragment.kt) and the method I want to call from the adapter is getOrderStatusList()
class OrdersByStatusFragment : BaseFragment() {
private lateinit var binding: OrderStatusLayoutBinding
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
return inflater.inflate(R.layout.fragment_orders_by_status, container, false)
}
override fun onResume() {
super.onResume()
getOrderStatusList()
}
fun getOrderStatusList() {
showProgressDialog(resources.getString(R.string.please_wait))
FirestoreClass().getOrderStatusList(this#OrdersByStatusFragment)
}
fun successOrderStatusList(orderStatusList: ArrayList<OrderStatus>) {
hideProgressDialog()
if (orderStatusList.size > 0) {
rv_order_by_status.visibility = View.VISIBLE
tv_no_orders_by_status_found.visibility = View.GONE
rv_order_by_status.layoutManager = LinearLayoutManager(activity)
rv_order_by_status.setHasFixedSize(true)
val orderStatusListAdapter =
OrderStatusListAdapter(requireActivity(), orderStatusList)
rv_order_by_status.adapter = orderStatusListAdapter
} else {
rv_order_by_status.visibility = View.GONE
tv_no_orders_by_status_found.visibility = View.VISIBLE
}
}
fun successNewOrderStatus() {
Toast.makeText(requireContext(), "Success", Toast.LENGTH_SHORT).show()
}
}
Adapter OrderStatusListAdapter.kt
open class OrderStatusListAdapter(
private val context: Context,
private var list: ArrayList<OrderStatus>,
) : RecyclerView.Adapter<OrderStatusListAdapter.MyViewHolder>() {
class MyViewHolder(var binding: OrderStatusLayoutBinding) :
RecyclerView.ViewHolder(binding.root)
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
return MyViewHolder(
OrderStatusLayoutBinding.inflate(
LayoutInflater.from(parent.context),
parent,
false
)
)
}
override fun getItemCount(): Int {
return list.size
}
override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
val model = list[position]
if (true) {
GlideLoader(context).loadProductPicture(
model.image,
holder.itemView.iv_order_status_item_image
)
val dateFormat = "dd MMM yyyy HH:mm"
val formatter = SimpleDateFormat(dateFormat, Locale.getDefault())
val calendar: Calendar = Calendar.getInstance()
calendar.timeInMillis = model.order_datetime
val orderDateTime = formatter.format(calendar.time)
holder.itemView.tv_order_status_order_date.text = orderDateTime
holder.itemView.tv_order_status_item_name.text = model.items[0].title
holder.itemView.tv_order_status_item_price.text = "$${model.total_amount}"
holder.itemView.tv_order_status.text = model.order_status
holder.itemView.tv_order_status_order_id.text = model.id
holder.binding.spnOrderChangeStatus.onItemSelectedListener =
object : AdapterView.OnItemSelectedListener {
override fun onItemSelected(
parent: AdapterView<*>?,
view: View?,
position: Int,
id: Long
) {
holder.binding.tvSpinnerValue.text =
parent?.getItemAtPosition(position).toString()
}
override fun onNothingSelected(parent: AdapterView<*>?) {
}
}
holder.binding.btnOrderStatusChangeStatus.setOnClickListener {
Toast.makeText(context, "Button Clicked", Toast.LENGTH_SHORT).show()
FirestoreClass().updateOrderStatus(
model.id,
holder.binding.tvSpinnerValue.text.toString()
)
Toast.makeText(context, "DB Updated", Toast.LENGTH_SHORT).show()
}
holder.itemView.ib_order_status_delete_product.visibility = View.GONE
holder.itemView.setOnClickListener {
val intent = Intent(context, SoldProductDetailsActivity::class.java)
intent.putExtra(Constants.EXTRA_SOLD_PRODUCT_DETAILS, model)
context.startActivity(intent)
}
}
}
}
As you can see the fun getOrderStatusList() in the OrdersByStatusFragment.kt is actually calling a method in the FirestoreClass.kt. Following is the getOrderStatusList() in the FirestoreClass.kt
fun getOrderStatusList(fragment: OrdersByStatusFragment) {
mFireStore.collection(Constants.ORDERS)
.whereIn("order_status", listOf("Pending", "In process"))
.get()
.addOnSuccessListener { document ->
val list: ArrayList<OrderStatus> = ArrayList()
for (i in document.documents) {
val orderStatus = i.toObject(OrderStatus::class.java)!!
orderStatus.id = i.id
list.add(orderStatus)
}
fragment.successOrderStatusList(list)
}
.addOnFailureListener {
fragment.hideProgressDialog()
}
}
The way I solved something like this is to pass a reference to the method into the adapter's constructor, then you can call the method in the adapter.
See kotlin-how-to-pass-a-function-as-parameter-to-another
In general, the link shows a class containing a method called buz.
Let's say your adapter has a constructor like:
class MyAdapter (private val context: Context, val buzz: () -> Unit) : RecyclerView.Adapter<RecyclerView.ViewHolder>()
then you can create the adapter like
MyAdapter(applicationContext, ::buz)
In the adapter the method can be called normally:
buzz()
i have problem with adding simple Spiner to RecyclerView item. I saw a lot of examples but i cannot add it to my project. All i want is the same Spiner with list of Strings in every item of RecyclerView. I have no problem with implement this without RecycylerView, but with it, i dont know where to pass Adapter for Spiner.
RecyclerViewAdapter:
class MealPlanerAdapter(val mealList: MutableList<String>) : RecyclerView.Adapter<CustomViewHolder>() {
val mealCalories = mutableListOf<Int>()
override fun getItemCount(): Int {
return mealList.size
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CustomViewHolder {
val layoutInflater = LayoutInflater.from(parent.context)
val cellForRow = layoutInflater.inflate(R.layout.meal_row, parent, false)
mealList.forEach {
mealCalories.add(100 / mealList.size)
}
return CustomViewHolder(cellForRow)
}
#SuppressLint("SetTextI18n", "CutPasteId", "ClickableViewAccessibility")
override fun onBindViewHolder(holder: CustomViewHolder, position: Int) {
holder.view.findViewById<TextView>(R.id.meal_name_text_view).text = "Meal name"
holder.view.findViewById<TextView>(R.id.calosies_slider_name_text_view).text = "Daily calories: "
holder.view.findViewById<TextView>(R.id.calories_value_text_view).text = holder.view.findViewById<SeekBar>(
R.id.calories_seek_bar
).progress.toString()+"%"
holder.view.findViewById<TextView>(R.id.protein_value_text_view).text = holder.view.findViewById<SeekBar>(
R.id.protein_seek_bar
).progress.toString()+"%"
holder.view.findViewById<TextView>(R.id.fat_value_text_view).text = holder.view.findViewById<SeekBar>(
R.id.fat_seek_bar
).progress.toString()+"%"
holder.view.findViewById<TextView>(R.id.carbs_value_text_view).text = holder.view.findViewById<SeekBar>(
R.id.calories_seek_bar
).progress.toString()+"%"
holder.view.findViewById<SeekBar>(R.id.calories_seek_bar).progress = mealCalories[position]
var proteinValue: Int = 20
var fatValue: Int = 25
holder.view.findViewById<SeekBar>(R.id.calories_seek_bar).setOnSeekBarChangeListener(object :
SeekBar.OnSeekBarChangeListener {
override fun onProgressChanged(
seekBar: SeekBar?,
progress: Int,
fromUser: Boolean
) {
holder.view.findViewById<TextView>(R.id.calories_value_text_view).text =
"$progress%"
println(position)
}
override fun onStartTrackingTouch(seekBar: SeekBar?) {
}
override fun onStopTrackingTouch(seekBar: SeekBar?) {
}
})
holder.view.findViewById<SeekBar>(R.id.protein_seek_bar).setOnSeekBarChangeListener(object :
SeekBar.OnSeekBarChangeListener {
override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
holder.view.findViewById<TextView>(R.id.protein_value_text_view).text = "$progress%"
proteinValue = progress
holder.view.findViewById<SeekBar>(R.id.carbs_seek_bar).progress =
100 - proteinValue - fatValue
holder.view.findViewById<SeekBar>(R.id.carbs_seek_bar).refreshDrawableState()
}
override fun onStartTrackingTouch(seekBar: SeekBar?) {
}
override fun onStopTrackingTouch(seekBar: SeekBar?) {
}
})
holder.view.findViewById<SeekBar>(R.id.fat_seek_bar).setOnSeekBarChangeListener(object :
SeekBar.OnSeekBarChangeListener {
#SuppressLint("ResourceType")
override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
holder.view.findViewById<TextView>(R.id.fat_value_text_view).text = "$progress%"
fatValue = progress
holder.view.findViewById<SeekBar>(R.id.carbs_seek_bar).progress =
100 - proteinValue - fatValue
holder.view.findViewById<View>(R.id.carbs_seek_bar).refreshDrawableState()
}
override fun onStartTrackingTouch(seekBar: SeekBar?) {
}
override fun onStopTrackingTouch(seekBar: SeekBar?) {
}
})
holder.view.findViewById<SeekBar>(R.id.carbs_seek_bar).setOnTouchListener { v, event -> true }
}
}
class CustomViewHolder(val view: View): RecyclerView.ViewHolder(view) {
}
Fragment:
class MealPlanerFragment : Fragment(R.layout.fragment_meal_planer) {
private var param1: String? = null
private var param2: String? = null
private val mealList = mutableListOf<String>("1", "2", "3")
private lateinit var mAdapter: MealPlanerAdapter
private lateinit var mLinearLayoutManager: LinearLayoutManager
private lateinit var mRecyclerView: RecyclerView
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
arguments?.let {
param1 = it.getString(ARG_PARAM1)
param2 = it.getString(ARG_PARAM2)
}
mAdapter = MealPlanerAdapter(mealList)
}
#SuppressLint("CutPasteId", "ResourceType")
override fun onCreateView(
inflater: LayoutInflater, container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
val inflater = inflater.inflate(R.layout.fragment_meal_planer, container, false)
mLinearLayoutManager = LinearLayoutManager(activity)
mRecyclerView = inflater.findViewById(recycler_view_meal_planer)
mRecyclerView.layoutManager = mLinearLayoutManager
mRecyclerView.adapter = mAdapter
return inflater
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
}
}
i'm new in Kotlin and learning this Coding-Language right now.
At the moment i get stuck on the Problem that in my Multi-Level expandablelistview in secondlevel the groupPosition is always "0".
The view shows always 3 times the same objects, but it must be 3 different objects.
The Data comes from a local running SQL-Lite Database and the Databasequery works fine.
Here is my code, I hope you can help me!
class pflegeRabGru :AppCompatActivity(){
val ctx:Context = this
internal var expandableListView: ExpandableListView?=null
internal var listAdapter: ExpandableListAdapter?=null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_pflege_rabgru)
expandableListView= findViewById(R.id.expRabListView)
if (expandableListView !=null){
listAdapter=adapter_RabGruKat(this)
expandableListView!!.setAdapter(listAdapter)
}
}
The First Adapter
adapter_RabGruKat
class adapter_RabGruKat internal constructor(private val context: Context):BaseExpandableListAdapter() {
val lclDb=lclDBHelper(context)
val listRabgru = ArrayList<ArtRabGru>()
val listRabFields = ArrayList<RabGruFields>()
val listCats = ArrayList<Categorys>()
val listReadedRabgru= getRabForGroups()
val listReadedRabKats = getKatsForGroups()
override fun getChild(groupPosition: Int, childPosition: Int):Int{
return childPosition
}
override fun getChildId(groupPosition: Int, childPosition: Int): Long{
return childPosition.toLong()
}
override fun getChildView(groupPosition: Int, childPosition: Int, isLastChild: Boolean, convertView: View?, parent:ViewGroup):View{
var convertView = convertView
var subObjects = ExpandableListView(context)
subObjects!!.setAdapter(adapter_RabGruKatChilds(context,childPosition.toLong(),getGroup(groupPosition).get(groupPosition).WAHID))
subObjects!!.setGroupIndicator(null)
return subObjects
}
override fun getChildrenCount(groupPosition: Int): Int {
return listCats.size
}
override fun getGroup(groupPosition: Int):ArrayList<ArtRabGru>{
return listRabgru
}
override fun getGroupCount(): Int {
return listRabgru.size
}
override fun getGroupId(groupPosition: Int): Long {
return groupPosition.toLong()
}
override fun getGroupView(groupPosition: Int,isExpanded: Boolean, convertView: View?, parent: ViewGroup): View {
var convertView = convertView
val groupTitle = getGroup(groupPosition).get(groupPosition).WAH_RABGRU + " " + getGroup(groupPosition).get(groupPosition).WAH_RABGRUTEXT
val groupId = getGroup(groupPosition).get(groupPosition).WAHID
if (convertView==null){
val layoutInflater = this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
convertView = layoutInflater.inflate(R.layout.parent_pflege_rabgru, null)
}
val listRabGruTitle = convertView!!.findViewById<TextView>(R.id.txtRabgruName)
val listRabId = convertView!!.findViewById<TextView>(R.id.txtRabGruId)
listRabGruTitle.text=groupTitle
listRabId.text=groupId.toString()
return convertView
}
override fun hasStableIds(): Boolean {
return true
}
override fun isChildSelectable(groupPosition: Int, childPosition: Int):Boolean {
return true
}
fun getRabForGroups():ArrayList<ArtRabGru>{
lclDb.readAllArtRabGru().forEach() {
listRabgru.add(ArtRabGru(it.WAHID,it.WAH_RABGRU,it.WAH_RABGRUTEXT))
}
return listRabgru
}
fun getKatsForGroups():ArrayList<Categorys>{
lclDb.readAllCategory().forEach {
listCats.add(Categorys(it.KATID,it.KATNAME))
}
return listCats
}
}
and the SecondLevelAdapter
class adapter_RabGruKatChilds internal constructor(private val context:Context, private val childPositionOtherAdapter:Long,private val selectedRabgru:Long) : BaseExpandableListAdapter() {
val lclDb = lclDBHelper(context)
var listCats = ArrayList<Categorys>()
val readCats = getKatsForGroups()
val rabFields = ArrayList<RabGruFields>()
val readRabFields = getFieldRabs()
override fun getChild(childPosition: Int, groupPosition: Int):RabGruFields {
return rabFields.get(childPosition)
}
override fun getChildId(groupPosition:Int, childPosition:Int): Long {
return childPosition.toLong()
}
override fun getChildView(groupPosition: Int, childPosition: Int, isLastChild: Boolean, convertView: View?, parent:ViewGroup): View {
var convertView = convertView
val fieldId= getChild(childPosition,groupPosition).RABFIELDID
val fieldName= getChild(childPosition,groupPosition).RABFIELDTEXT
if (convertView==null){
val layoutInflater = this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
convertView=layoutInflater.inflate(R.layout.pflegefieldsitems, null)
}
val txtfieldId = convertView!!.findViewById<TextView>(R.id.txtFieldId)
val txtfieldName = convertView!!.findViewById<TextView>(R.id.txtFieldName)
txtfieldId.text=fieldId.toString()
txtfieldName.text=fieldName
return convertView
}
override fun getChildrenCount(groupPosition: Int): Int {
return rabFields.size
}
override fun getGroup(groupPosition: Int):Categorys{
Log.i("INFO", "GroupPosition in getGroupt="+ groupPosition.toString())
return listCats.get(groupPosition)
}
override fun getGroupCount(): Int {
return listCats.size
}
override fun getGroupId(groupPosition: Int):Long {
return groupPosition.toLong()
}
override fun getGroupView(groupPosition: Int,isExpanded:Boolean, convertView:View?, parent:ViewGroup): View? {
var convertView = convertView
val groupCatId = getGroup(groupPosition).KATID
val groupTitle = getGroup(groupPosition).KATNAME
if(convertView==null){
val layoutInflater = this.context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
convertView = layoutInflater.inflate(R.layout.parent_pflege_rabgru, parent,false)
}
val txtCatId = convertView!!.findViewById<TextView>(R.id.txtRabGruId)
val txtCatName = convertView!!.findViewById<TextView>(R.id.txtRabgruName)
txtCatId.text= groupCatId.toString()
txtCatName.text = groupTitle
Log.i("INFO", "GroupPosition in getGroupView=" + groupPosition.toString())
return convertView
}
override fun hasStableIds(): Boolean {
return true
}
override fun isChildSelectable(groupPosition: Int, childPosition: Int): Boolean {
return true
}
fun getKatsForGroups():ArrayList<Categorys>{
listCats.clear()
lclDb.readAllCategory().forEach {
listCats.add(Categorys(it.KATID,it.KATNAME))
}
return listCats
}
fun getFieldRabs(): ArrayList<RabGruFields>{
rabFields.clear()
lclDb.readAllRabFields(selectedRabgru).forEach{
rabFields.add(RabGruFields(it.RABID, it.RABGRUID,it.RABFIELDID,it.RABFIELDMANDATORY,it.RABFIELDSHOW,it.RABFIELDTEXT,it.RABFIELDRANDOMIZE))
}
return rabFields
}
}