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add itemList Fragment, ViewModel
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@quanda-0562
quanda-0562 committed Jul 17, 2023
1 parent 052e1e7 commit 579e646
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Showing 16 changed files with 398 additions and 121 deletions.
10 changes: 5 additions & 5 deletions app/src/main/java/com/example/moviedb/compose/ui/home/HomeScreen.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -40,9 +40,9 @@ fun HomeScreen(
navController: NavController,
viewModel: PopularMovieViewModel = hiltViewModel()
) {
val movieList by viewModel.itemList.collectAsState(listOf())
val refreshing by viewModel.isRefreshing.collectAsState(false)
val pullRefreshState = rememberPullRefreshState(refreshing, { viewModel.doRefresh() })
val itemListUiState by viewModel.itemListUiState.collectAsState()
val pullRefreshState =
rememberPullRefreshState(itemListUiState.isRefreshing, { viewModel.doRefresh() })
val scrollState = rememberLazyGridState()
val endOfListReached by remember {
derivedStateOf {
Expand All @@ -65,7 +65,7 @@ fun HomeScreen(
state = scrollState,
) {
items(
items = movieList,
items = itemListUiState.items,
key = { movie: Movie -> movie.id },
itemContent = { movie ->
ItemMovie(
Expand All @@ -79,7 +79,7 @@ fun HomeScreen(
}

PullRefreshIndicator(
refreshing = refreshing,
refreshing = itemListUiState.isRefreshing,
state = pullRefreshState,
modifier = Modifier.align(Alignment.TopCenter)
)
Expand Down
40 changes: 18 additions & 22 deletions app/src/main/java/com/example/moviedb/ui/base/BaseActivity.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -45,20 +45,8 @@ abstract class BaseActivity<ViewBinding : ViewDataBinding, ViewModel : BaseViewM
lifecycleScope.launch {
repeatOnLifecycle(Lifecycle.State.STARTED) {
viewModel.uiState.collectLatest { uiState ->
when (uiState) {
is UiState.Loading -> {
handleLoading(isLoading = true)
}

is UiState.Error -> {
handleLoading(isLoading = false)
handleError(uiState.errorType)
}

else -> {
handleLoading(isLoading = false)
}
}
handleLoading(uiState.isLoading)
handleError(errorType = uiState.errorType)
}
}
}
Expand All @@ -68,10 +56,11 @@ abstract class BaseActivity<ViewBinding : ViewDataBinding, ViewModel : BaseViewM
* override this if not use loading dialog (example progress bar)
*/
protected open fun handleLoading(isLoading: Boolean) {
if (isLoading) showLoadingDialog() else dismissLLoadingDialog()
if (isLoading) showLoadingDialog()
else dismissLLoadingDialog()
}

protected fun handleError(errorType: ErrorType) {
protected fun handleError(errorType: ErrorType?) {
when (errorType) {
ErrorType.NoInternetConnection -> {
handleErrorMessage(getString(R.string.no_internet_connection))
Expand All @@ -96,16 +85,23 @@ abstract class BaseActivity<ViewBinding : ViewDataBinding, ViewModel : BaseViewM
is ErrorType.UnknownError -> {
handleErrorMessage(getString(R.string.unknown_error))
}

else -> {
dismissShowingDialog()
}
}
}

protected open fun handleErrorMessage(message: String?) {
if (message.isNullOrBlank()) return
dismissLLoadingDialog()
showDialog(
message = message,
firstText = getString(R.string.ok)
)
if (message.isNullOrBlank().not()) {
showDialog(
message = message,
firstText = getString(R.string.ok),
dismissListener = {
viewModel.hideError()
}
)
}
}

override fun onStart() {
Expand Down
37 changes: 16 additions & 21 deletions app/src/main/java/com/example/moviedb/ui/base/BaseBottomSheetDialogFragment.kt
View file
Original file line number Diff line number Diff line change
Expand Up @@ -57,20 +57,8 @@ abstract class BaseBottomSheetDialogFragment<ViewBinding : ViewDataBinding, View
lifecycleScope.launch {
repeatOnLifecycle(Lifecycle.State.STARTED) {
viewModel.uiState.collectLatest { uiState ->
when (uiState) {
is UiState.Loading -> {
handleLoading(isLoading = true)
}

is UiState.Error -> {
handleLoading(isLoading = false)
handleError(uiState.errorType)
}

else -> {
handleLoading(isLoading = false)
}
}
handleLoading(uiState.isLoading)
handleError(errorType = uiState.errorType)
}
}
}
Expand All @@ -84,7 +72,7 @@ abstract class BaseBottomSheetDialogFragment<ViewBinding : ViewDataBinding, View
else baseActivity.dismissLLoadingDialog()
}

protected fun handleError(errorType: ErrorType) {
protected fun handleError(errorType: ErrorType?) {
when (errorType) {
ErrorType.NoInternetConnection -> {
handleErrorMessage(getString(R.string.no_internet_connection))
Expand All @@ -109,16 +97,23 @@ abstract class BaseBottomSheetDialogFragment<ViewBinding : ViewDataBinding, View
is ErrorType.UnknownError -> {
handleErrorMessage(getString(R.string.unknown_error))
}

else -> {
baseActivity.dismissShowingDialog()
}
}
}

protected open fun handleErrorMessage(message: String?) {
if (message.isNullOrBlank()) return
baseActivity.dismissLLoadingDialog()
baseActivity.showDialog(
message = message,
firstText = getString(R.string.ok)
)
if (message.isNullOrBlank().not()) {
baseActivity.showDialog(
message = message,
firstText = getString(R.string.ok),
dismissListener = {
viewModel.hideError()
}
)
}
}

override fun onStart() {
Expand Down
37 changes: 16 additions & 21 deletions app/src/main/java/com/example/moviedb/ui/base/BaseDialogFragment.kt
View file
Original file line number Diff line number Diff line change
Expand Up @@ -56,20 +56,8 @@ abstract class BaseDialogFragment<ViewBinding : ViewDataBinding, ViewModel : Bas
lifecycleScope.launch {
repeatOnLifecycle(Lifecycle.State.STARTED) {
viewModel.uiState.collectLatest { uiState ->
when (uiState) {
is UiState.Loading -> {
handleLoading(isLoading = true)
}

is UiState.Error -> {
handleLoading(isLoading = false)
handleError(uiState.errorType)
}

else -> {
handleLoading(isLoading = false)
}
}
handleLoading(uiState.isLoading)
handleError(errorType = uiState.errorType)
}
}
}
Expand All @@ -83,7 +71,7 @@ abstract class BaseDialogFragment<ViewBinding : ViewDataBinding, ViewModel : Bas
else baseActivity.dismissLLoadingDialog()
}

protected fun handleError(errorType: ErrorType) {
protected fun handleError(errorType: ErrorType?) {
when (errorType) {
ErrorType.NoInternetConnection -> {
handleErrorMessage(getString(R.string.no_internet_connection))
Expand All @@ -108,16 +96,23 @@ abstract class BaseDialogFragment<ViewBinding : ViewDataBinding, ViewModel : Bas
is ErrorType.UnknownError -> {
handleErrorMessage(getString(R.string.unknown_error))
}

else -> {
baseActivity.dismissShowingDialog()
}
}
}

protected open fun handleErrorMessage(message: String?) {
if (message.isNullOrBlank()) return
baseActivity.dismissLLoadingDialog()
baseActivity.showDialog(
message = message,
firstText = getString(R.string.ok)
)
if (message.isNullOrBlank().not()) {
baseActivity.showDialog(
message = message,
firstText = getString(R.string.ok),
dismissListener = {
viewModel.hideError()
}
)
}
}

override fun onStart() {
Expand Down
37 changes: 16 additions & 21 deletions app/src/main/java/com/example/moviedb/ui/base/BaseFragment.kt
View file
Original file line number Diff line number Diff line change
Expand Up @@ -57,20 +57,8 @@ abstract class BaseFragment<ViewBinding : ViewDataBinding, ViewModel : BaseViewM
lifecycleScope.launch {
repeatOnLifecycle(Lifecycle.State.STARTED) {
viewModel.uiState.collectLatest { uiState ->
when (uiState) {
is UiState.Loading -> {
handleLoading(isLoading = true)
}

is UiState.Error -> {
handleLoading(isLoading = false)
handleError(uiState.errorType)
}

else -> {
handleLoading(isLoading = false)
}
}
handleLoading(uiState.isLoading)
handleError(errorType = uiState.errorType)
}
}
}
Expand All @@ -84,7 +72,7 @@ abstract class BaseFragment<ViewBinding : ViewDataBinding, ViewModel : BaseViewM
else baseActivity.dismissLLoadingDialog()
}

protected fun handleError(errorType: ErrorType) {
protected fun handleError(errorType: ErrorType?) {
when (errorType) {
ErrorType.NoInternetConnection -> {
handleErrorMessage(getString(R.string.no_internet_connection))
Expand All @@ -109,16 +97,23 @@ abstract class BaseFragment<ViewBinding : ViewDataBinding, ViewModel : BaseViewM
is ErrorType.UnknownError -> {
handleErrorMessage(getString(R.string.unknown_error))
}

else -> {
baseActivity.dismissShowingDialog()
}
}
}

protected open fun handleErrorMessage(message: String?) {
if (message.isNullOrBlank()) return
baseActivity.dismissLLoadingDialog()
baseActivity.showDialog(
message = message,
firstText = getString(R.string.ok)
)
if (message.isNullOrBlank().not()) {
baseActivity.showDialog(
message = message,
firstText = getString(R.string.ok),
dismissListener = {
viewModel.hideError()
}
)
}
}

override fun onStart() {
Expand Down
41 changes: 29 additions & 12 deletions app/src/main/java/com/example/moviedb/ui/base/BaseViewModel.kt
View file
Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,8 @@ import com.example.moviedb.data.remote.toBaseException
import com.example.moviedb.data.repository.UserRepository
import kotlinx.coroutines.CoroutineExceptionHandler
import kotlinx.coroutines.flow.MutableStateFlow
import kotlinx.coroutines.flow.StateFlow
import kotlinx.coroutines.flow.update
import kotlinx.coroutines.launch
import kotlinx.coroutines.plus
import java.net.ConnectException
Expand All @@ -15,7 +17,8 @@ import java.net.UnknownHostException
import javax.inject.Inject

open class BaseViewModel : ViewModel() {
val uiState = MutableStateFlow<UiState>(UiState.Success)
private val _uiState = MutableStateFlow(UiState())
val uiState: StateFlow<UiState> = _uiState

@Inject
lateinit var userRepo: UserRepository
Expand All @@ -30,15 +33,11 @@ open class BaseViewModel : ViewModel() {
}
protected val viewModelScopeExceptionHandler by lazy { viewModelScope + exceptionHandler }

fun showSuccess() {
uiState.value = UiState.Success
}

/**
* handle throwable when load fail
*/
protected open suspend fun onError(throwable: Throwable) {
val errorType: ErrorType = when (throwable) {
protected fun toErrorType(throwable: Throwable): ErrorType {
return when (throwable) {
// case no internet connection
is UnknownHostException -> {
ErrorType.NoInternetConnection
Expand Down Expand Up @@ -70,16 +69,34 @@ open class BaseViewModel : ViewModel() {
}
}
}
uiState.value = UiState.Error(errorType)
}

fun showError(throwable: Throwable) {
uiState.value = UiState.Error(ErrorType.UnknownError(throwable))
protected open fun onError(throwable: Throwable) {
_uiState.update {
it.copy(
isLoading = false,
errorType = toErrorType(throwable)
)
}
}

open fun hideError() {
_uiState.update {
it.copy(errorType = null)
}
}

fun showLoading() {
uiState.value = UiState.Loading
_uiState.update {
it.copy(isLoading = true, errorType = null)
}
}

fun hideLoading() {
_uiState.update {
it.copy(isLoading = false)
}
}

fun isLoading() = uiState.value == UiState.Loading
fun isLoading() = uiState.value.isLoading
}
9 changes: 4 additions & 5 deletions app/src/main/java/com/example/moviedb/ui/base/UiState.kt
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Original file line number Diff line number Diff line change
@@ -1,10 +1,9 @@
package com.example.moviedb.ui.base

sealed class UiState {
object Success : UiState()
object Loading : UiState()
class Error(val errorType: ErrorType) : UiState()
}
data class UiState(
val isLoading: Boolean = false,
val errorType: ErrorType? = null
)

sealed class ErrorType {
object NoInternetConnection : ErrorType()
Expand Down
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