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@ -25,19 +25,16 @@ import androidx.compose.foundation.layout.PaddingValues
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import androidx.compose.foundation.layout.Row
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.WindowInsets
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import androidx.compose.foundation.layout.WindowInsetsSides
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import androidx.compose.foundation.layout.consumedWindowInsets
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import androidx.compose.foundation.layout.fillMaxSize
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import androidx.compose.foundation.layout.fillMaxWidth
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import androidx.compose.foundation.layout.height
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import androidx.compose.foundation.layout.heightIn
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import androidx.compose.foundation.layout.only
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.layout.safeDrawing
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import androidx.compose.foundation.layout.size
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import androidx.compose.foundation.layout.width
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import androidx.compose.foundation.layout.windowInsetsBottomHeight
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import androidx.compose.foundation.layout.windowInsetsPadding
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import androidx.compose.foundation.layout.wrapContentSize
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import androidx.compose.foundation.lazy.LazyListScope
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import androidx.compose.foundation.lazy.grid.GridCells
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@ -80,7 +77,6 @@ import androidx.lifecycle.compose.ExperimentalLifecycleComposeApi
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import androidx.lifecycle.compose.collectAsStateWithLifecycle
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import coil.compose.AsyncImage
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import com.google.samples.apps.nowinandroid.core.designsystem.component.NiaFilledButton
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import com.google.samples.apps.nowinandroid.core.designsystem.component.NiaGradientBackground
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import com.google.samples.apps.nowinandroid.core.designsystem.component.NiaLoadingWheel
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import com.google.samples.apps.nowinandroid.core.designsystem.component.NiaToggleButton
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import com.google.samples.apps.nowinandroid.core.designsystem.component.NiaTopAppBar
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@ -127,97 +123,93 @@ fun ForYouScreen(
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onNewsResourcesCheckedChanged: (String, Boolean) -> Unit,
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modifier: Modifier = Modifier,
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) {
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NiaGradientBackground {
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Scaffold(
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topBar = {
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NiaTopAppBar(
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titleRes = R.string.top_app_bar_title,
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actionIcon = NiaIcons.AccountCircle,
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actionIconContentDescription = stringResource(
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id = R.string.for_you_top_app_bar_action_my_account
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),
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colors = TopAppBarDefaults.centerAlignedTopAppBarColors(
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containerColor = Color.Transparent
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),
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modifier = Modifier.windowInsetsPadding(
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WindowInsets.safeDrawing.only(WindowInsetsSides.Top)
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)
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Scaffold(
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topBar = {
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NiaTopAppBar(
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titleRes = R.string.top_app_bar_title,
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actionIcon = NiaIcons.AccountCircle,
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actionIconContentDescription = stringResource(
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id = R.string.for_you_top_app_bar_action_my_account
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),
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colors = TopAppBarDefaults.centerAlignedTopAppBarColors(
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containerColor = Color.Transparent
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)
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},
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containerColor = Color.Transparent
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) { innerPadding ->
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// Workaround to call Activity.reportFullyDrawn from Jetpack Compose.
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// This code should be called when the UI is ready for use
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// and relates to Time To Full Display.
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val interestsLoaded =
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interestsSelectionState !is ForYouInterestsSelectionUiState.Loading
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val feedLoaded = feedState !is NewsFeedUiState.Loading
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)
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},
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containerColor = Color.Transparent,
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contentWindowInsets = WindowInsets(0, 0, 0, 0)
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) { innerPadding ->
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// Workaround to call Activity.reportFullyDrawn from Jetpack Compose.
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// This code should be called when the UI is ready for use
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// and relates to Time To Full Display.
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val interestsLoaded =
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interestsSelectionState !is ForYouInterestsSelectionUiState.Loading
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val feedLoaded = feedState !is NewsFeedUiState.Loading
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if (interestsLoaded && feedLoaded) {
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val localView = LocalView.current
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// We use Unit to call reportFullyDrawn only on the first recomposition,
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// however it will be called again if this composable goes out of scope.
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// Activity.reportFullyDrawn() has its own check for this
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// and is safe to call multiple times though.
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LaunchedEffect(Unit) {
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// We're leveraging the fact, that the current view is directly set as content of Activity.
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val activity = localView.context as? Activity ?: return@LaunchedEffect
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// To be sure not to call in the middle of a frame draw.
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localView.doOnPreDraw { activity.reportFullyDrawn() }
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}
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if (interestsLoaded && feedLoaded) {
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val localView = LocalView.current
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// We use Unit to call reportFullyDrawn only on the first recomposition,
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// however it will be called again if this composable goes out of scope.
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// Activity.reportFullyDrawn() has its own check for this
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// and is safe to call multiple times though.
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LaunchedEffect(Unit) {
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// We're leveraging the fact, that the current view is directly set as content of Activity.
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val activity = localView.context as? Activity ?: return@LaunchedEffect
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// To be sure not to call in the middle of a frame draw.
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localView.doOnPreDraw { activity.reportFullyDrawn() }
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}
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}
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val tag = "forYou:feed"
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val tag = "forYou:feed"
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val lazyGridState = rememberLazyGridState()
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TrackScrollJank(scrollableState = lazyGridState, stateName = tag)
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val lazyGridState = rememberLazyGridState()
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TrackScrollJank(scrollableState = lazyGridState, stateName = tag)
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LazyVerticalGrid(
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columns = Adaptive(300.dp),
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contentPadding = PaddingValues(16.dp),
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horizontalArrangement = Arrangement.spacedBy(16.dp),
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verticalArrangement = Arrangement.spacedBy(24.dp),
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modifier = modifier
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.padding(innerPadding)
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.consumedWindowInsets(innerPadding)
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.fillMaxSize()
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.testTag("forYou:feed"),
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state = lazyGridState
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) {
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interestsSelection(
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interestsSelectionState = interestsSelectionState,
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onAuthorCheckedChanged = onAuthorCheckedChanged,
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onTopicCheckedChanged = onTopicCheckedChanged,
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saveFollowedTopics = saveFollowedTopics,
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// Custom LayoutModifier to remove the enforced parent 16.dp contentPadding
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// from the LazyVerticalGrid and enable edge-to-edge scrolling for this section
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interestsItemModifier = Modifier.layout { measurable, constraints ->
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val placeable = measurable.measure(
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constraints.copy(
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maxWidth = constraints.maxWidth + 32.dp.roundToPx()
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)
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LazyVerticalGrid(
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columns = Adaptive(300.dp),
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contentPadding = PaddingValues(16.dp),
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horizontalArrangement = Arrangement.spacedBy(16.dp),
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verticalArrangement = Arrangement.spacedBy(24.dp),
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modifier = modifier
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.padding(innerPadding)
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.consumedWindowInsets(innerPadding)
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.fillMaxSize()
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.testTag("forYou:feed"),
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state = lazyGridState
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) {
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interestsSelection(
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interestsSelectionState = interestsSelectionState,
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onAuthorCheckedChanged = onAuthorCheckedChanged,
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onTopicCheckedChanged = onTopicCheckedChanged,
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saveFollowedTopics = saveFollowedTopics,
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// Custom LayoutModifier to remove the enforced parent 16.dp contentPadding
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// from the LazyVerticalGrid and enable edge-to-edge scrolling for this section
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interestsItemModifier = Modifier.layout { measurable, constraints ->
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val placeable = measurable.measure(
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constraints.copy(
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maxWidth = constraints.maxWidth + 32.dp.roundToPx()
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)
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layout(placeable.width, placeable.height) {
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placeable.place(0, 0)
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}
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)
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layout(placeable.width, placeable.height) {
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placeable.place(0, 0)
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}
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)
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}
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)
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newsFeed(
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feedState = feedState,
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// Avoid showing a second loading wheel if we already are for the interests
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// selection
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showLoadingUIIfLoading =
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interestsSelectionState !is ForYouInterestsSelectionUiState.Loading,
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onNewsResourcesCheckedChanged = onNewsResourcesCheckedChanged,
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loadingContentDescription = R.string.for_you_loading
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)
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newsFeed(
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feedState = feedState,
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// Avoid showing a second loading wheel if we already are for the interests
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// selection
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showLoadingUIIfLoading =
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interestsSelectionState !is ForYouInterestsSelectionUiState.Loading,
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onNewsResourcesCheckedChanged = onNewsResourcesCheckedChanged,
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loadingContentDescription = R.string.for_you_loading
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)
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item(span = { GridItemSpan(maxLineSpan) }) {
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Column {
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Spacer(modifier = Modifier.height(8.dp))
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Spacer(Modifier.windowInsetsBottomHeight(WindowInsets.safeDrawing))
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}
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item(span = { GridItemSpan(maxLineSpan) }) {
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Column {
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Spacer(modifier = Modifier.height(8.dp))
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Spacer(Modifier.windowInsetsBottomHeight(WindowInsets.safeDrawing))
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}
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}
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}
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Alex Vanyo
2 years ago
committed by
GitHub