更新
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package com.taskttl.presentation.task
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import androidx.compose.foundation.background
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import androidx.compose.foundation.clickable
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import androidx.compose.foundation.interaction.MutableInteractionSource
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import androidx.compose.foundation.layout.Arrangement
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import androidx.compose.foundation.layout.Box
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import androidx.compose.foundation.layout.Column
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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.aspectRatio
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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.padding
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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.lazy.LazyColumn
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import androidx.compose.foundation.lazy.itemsIndexed
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import androidx.compose.foundation.shape.CircleShape
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import androidx.compose.foundation.shape.RoundedCornerShape
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import androidx.compose.material.icons.Icons
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import androidx.compose.material.icons.filled.Add
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import androidx.compose.material.icons.filled.CheckCircle
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import androidx.compose.material.icons.filled.Search
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import androidx.compose.material.icons.outlined.Circle
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import androidx.compose.material.icons.rounded.Delete
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import androidx.compose.material3.Card
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import androidx.compose.material3.CardDefaults
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import androidx.compose.material3.Checkbox
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import androidx.compose.material3.CircularProgressIndicator
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import androidx.compose.material3.FilledIconButton
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import androidx.compose.material3.FloatingActionButton
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import androidx.compose.material3.Icon
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import androidx.compose.material3.IconButton
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import androidx.compose.material3.IconButtonDefaults
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.material3.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.LaunchedEffect
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import androidx.compose.runtime.collectAsState
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import androidx.compose.runtime.getValue
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import androidx.compose.runtime.mutableStateOf
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import androidx.compose.runtime.remember
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import androidx.compose.runtime.setValue
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.draw.clip
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.text.style.TextDecoration
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import androidx.compose.ui.text.style.TextOverflow
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import androidx.compose.ui.unit.dp
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import androidx.navigation.NavHostController
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import com.taskttl.core.routes.Routes
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import com.taskttl.core.ui.ActionButtonListItem
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import com.taskttl.data.local.model.Task
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import com.taskttl.data.state.TaskEffect
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import com.taskttl.data.state.TaskIntent
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import com.taskttl.data.viewmodel.TaskViewModel
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import com.taskttl.ui.components.AppHeader
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import com.taskttl.ui.components.CategoryFilter
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import com.taskttl.ui.components.SearchBar
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import org.jetbrains.compose.resources.stringResource
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import org.jetbrains.compose.ui.tooling.preview.Preview
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import org.koin.compose.viewmodel.koinViewModel
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import taskttl.composeapp.generated.resources.Res
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import taskttl.composeapp.generated.resources.desc_completed
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import taskttl.composeapp.generated.resources.desc_incomplete
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import taskttl.composeapp.generated.resources.label_show_completed
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import taskttl.composeapp.generated.resources.label_task_list
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import taskttl.composeapp.generated.resources.text_add_task_hint
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import taskttl.composeapp.generated.resources.text_no_tasks
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import taskttl.composeapp.generated.resources.title_add_task
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import taskttl.composeapp.generated.resources.title_task
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@Composable
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@Preview
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fun TaskScreen(
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navController: NavHostController,
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viewModel: TaskViewModel = koinViewModel()
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) {
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val state by viewModel.state.collectAsState()
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var isOpenIndex by remember { mutableStateOf<Int?>(null) }
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fun closeExpandedItem() {
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isOpenIndex = null
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}
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LaunchedEffect(Unit) {
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viewModel.effects.collect { effect ->
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when (effect) {
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is TaskEffect.NavigateToTaskDetail -> {
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navController.navigate(Routes.Main.Task.TaskDetail(effect.taskId))
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}
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else -> {}
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}
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}
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}
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state.error?.let { error ->
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LaunchedEffect(error) { viewModel.handleIntent(TaskIntent.ClearError) }
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}
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Box(
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modifier = Modifier
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.fillMaxSize()
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.background(Color.White)
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) {
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Column(
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modifier = Modifier.fillMaxSize()
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) {
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AppHeader(
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title = Res.string.title_task,
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trailingIcon = Icons.Default.Search,
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onTrailingClick = { viewModel.handleIntent(TaskIntent.SearchView) }
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)
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Column(
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modifier = Modifier
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.fillMaxSize()
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.background(Color(0xFFF5F5F5))
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.padding(16.dp)
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) {
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if (state.isSearch) {
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SearchBar(
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query = state.searchQuery,
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onQueryChange = { viewModel.handleIntent(TaskIntent.SearchTasks(it)) },
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modifier = Modifier.fillMaxWidth()
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)
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Spacer(modifier = Modifier.height(8.dp))
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}
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CategoryFilter(
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categories = state.categories,
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selectedCategory = state.selectedCategory,
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onCategorySelected = { viewModel.handleIntent(TaskIntent.FilterByCategory(it)) },
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modifier = Modifier.fillMaxWidth()
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)
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Spacer(modifier = Modifier.height(8.dp))
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Row(
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modifier = Modifier.fillMaxWidth(),
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horizontalArrangement = Arrangement.SpaceBetween,
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verticalAlignment = Alignment.CenterVertically
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) {
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Text(
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text = "${stringResource(Res.string.label_task_list)} (${state.filteredTasks.size})",
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style = MaterialTheme.typography.titleMedium
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)
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Row(verticalAlignment = Alignment.CenterVertically) {
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Checkbox(
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checked = state.showCompleted,
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onCheckedChange = {
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viewModel.handleIntent(TaskIntent.ToggleShowCompleted(it))
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}
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)
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Text(
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stringResource(Res.string.label_show_completed),
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style = MaterialTheme.typography.bodySmall
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)
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}
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}
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Spacer(modifier = Modifier.height(8.dp))
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when {
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state.isLoading -> {
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Box(
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modifier = Modifier.fillMaxSize(),
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contentAlignment = Alignment.Center
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) {
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CircularProgressIndicator()
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}
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}
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state.filteredTasks.isEmpty() -> {
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Box(
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modifier = Modifier.fillMaxSize(),
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contentAlignment = Alignment.Center
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) {
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Column(horizontalAlignment = Alignment.CenterHorizontally) {
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Text(
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text = stringResource(Res.string.text_no_tasks),
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style = MaterialTheme.typography.bodyLarge
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)
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Spacer(modifier = Modifier.height(8.dp))
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Text(
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text = stringResource(Res.string.text_add_task_hint),
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style = MaterialTheme.typography.bodySmall,
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color = MaterialTheme.colorScheme.onSurfaceVariant
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)
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}
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}
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}
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else -> {
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LazyColumn(
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modifier = Modifier.fillMaxSize().clickable(
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indication = null,
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interactionSource = remember { MutableInteractionSource() }
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) { if (isOpenIndex != null) closeExpandedItem() },
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verticalArrangement = Arrangement.spacedBy(8.dp)
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) {
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item { Spacer(Modifier) }
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itemsIndexed(
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state.filteredTasks,
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key = { index, item -> item.title }) { index, task ->
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var isOpen by remember { mutableStateOf(false) }
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TaskCardItem(
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task = task,
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isOpen = isOpenIndex == index && isOpen,
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onOpenChange = {
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isOpenIndex = if (it) index else null
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isOpen = it
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},
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onClick = {
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navController.navigate(Routes.Main.Task.TaskDetail(task.id))
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},
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onToggleComplete = {
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viewModel.handleIntent(TaskIntent.ToggleTaskCompletion(task.id))
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},
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onDeleteTask = {
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viewModel.handleIntent(TaskIntent.DeleteTask(task.id))
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}
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)
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}
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}
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}
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}
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}
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}
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// 悬浮按钮
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FloatingActionButton(
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onClick = { navController.navigate(Routes.Main.Task.AddTask) },
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modifier = Modifier
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.align(Alignment.BottomEnd)
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.padding(20.dp),
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containerColor = Color(0xFF667EEA)
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) {
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Icon(
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imageVector = Icons.Default.Add,
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contentDescription = stringResource(Res.string.title_add_task)
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)
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}
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}
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}
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/**
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* 任务卡项目
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* @param [task] 任务
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* @param [isOpen] 是开放
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* @param [alignment] 对齐
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* @param [onOpenChange] 论开放式变革
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* @param [onClick] 单击
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* @param [onToggleComplete] 切换完成
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* @param [onDeleteTask] 关于删除任务
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* @param [modifier] 修饰符
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*/
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@Composable
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fun TaskCardItem(
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task: Task,
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isOpen: Boolean,
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alignment: Alignment.Horizontal = Alignment.End,
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onOpenChange: (Boolean) -> Unit,
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onClick: () -> Unit,
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onToggleComplete: () -> Unit,
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onDeleteTask: () -> Unit,
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modifier: Modifier = Modifier
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) {
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ActionButtonListItem(
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modifier = Modifier
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.fillMaxWidth()
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.clip(RoundedCornerShape(12.dp)),
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isOpen = isOpen,
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actionAlignment = alignment,
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onOpenChange = onOpenChange,
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onClick = onClick
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) {
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Card(
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modifier = modifier
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.fillMaxWidth()
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.background(Color.Transparent, shape = RoundedCornerShape(12.dp))
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.clickable { onClick.invoke() },
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colors = CardDefaults.cardColors(containerColor = Color.White),
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elevation = CardDefaults.cardElevation(defaultElevation = 2.dp)
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) {
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Row(
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modifier = Modifier
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.fillMaxWidth()
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.padding(16.dp),
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verticalAlignment = Alignment.CenterVertically
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) {
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// 完成状态按钮
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IconButton(
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onClick = onToggleComplete,
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modifier = Modifier.size(24.dp)
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) {
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val isCompleted =
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if (task.isCompleted) Res.string.desc_completed else Res.string.desc_incomplete
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Icon(
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imageVector = if (task.isCompleted) Icons.Filled.CheckCircle else Icons.Outlined.Circle,
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contentDescription = stringResource(isCompleted),
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tint = if (task.isCompleted) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurfaceVariant
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)
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}
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Spacer(modifier = Modifier.width(12.dp))
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// 任务内容
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Column(
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modifier = Modifier.weight(1f)
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) {
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Text(
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text = task.title,
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style = MaterialTheme.typography.titleMedium,
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textDecoration = if (task.isCompleted) TextDecoration.LineThrough else null,
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color = if (task.isCompleted) MaterialTheme.colorScheme.onSurfaceVariant else MaterialTheme.colorScheme.onSurface,
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maxLines = 1,
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overflow = TextOverflow.Ellipsis
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)
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if (task.description.isNotBlank()) {
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Spacer(modifier = Modifier.height(4.dp))
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Text(
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text = task.description,
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style = MaterialTheme.typography.bodySmall,
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color = MaterialTheme.colorScheme.onSurfaceVariant,
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maxLines = 2,
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overflow = TextOverflow.Ellipsis
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)
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}
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}
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Spacer(modifier = Modifier.width(12.dp))
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Row(
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verticalAlignment = Alignment.CenterVertically
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) {
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// 优先级标签
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Box(
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modifier = Modifier
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.background(
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color = task.priority.color.copy(alpha = 0.1f),
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shape = RoundedCornerShape(12.dp)
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)
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.padding(horizontal = 8.dp, vertical = 4.dp)
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) {
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Text(
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text = stringResource(task.priority.displayNameRes),
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style = MaterialTheme.typography.labelSmall,
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color = task.priority.color
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)
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}
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Spacer(modifier = Modifier.width(8.dp))
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// 分类标签
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Box(
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modifier = Modifier
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.background(
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color = task.category.color.backgroundColor,
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shape = RoundedCornerShape(12.dp)
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)
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.padding(horizontal = 8.dp, vertical = 4.dp)
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) {
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Text(
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text = task.category.name,
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style = MaterialTheme.typography.labelSmall,
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color = task.category.color.textColor
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)
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}
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}
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}
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}
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FilledIconButton(
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onClick = { onDeleteTask.invoke() },
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shape = CircleShape,
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modifier = Modifier
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.size(32.dp)
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.aspectRatio(1f),
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colors = IconButtonDefaults.filledIconButtonColors(
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containerColor = Color(0xffff1111),
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contentColor = Color.White
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)
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) {
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Icon(
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imageVector = Icons.Rounded.Delete,
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contentDescription = Icons.Rounded.Delete.name
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)
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}
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}
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}
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Reference in New Issue
Block a user