feat: 添加空项目提示

app/src/main/kotlin/cn/super12138/todo/ui/pages/main/MainPage.kt

@@ -98,7 +98,7 @@ fun MainPage(viewModel: MainViewModel, modifier: Modifier = Modifier) {
 
             ManagerFragment(
                 state = listState,
-                list = toDoList.value,
+                list = toDoList.value.filter { item -> !item.isCompleted },
                 onItemClick = {},
                 onItemChecked = { item ->
                     item.apply {

app/src/main/kotlin/cn/super12138/todo/ui/pages/main/ManagerFragment.kt

@@ -1,22 +1,30 @@
 package cn.super12138.todo.ui.pages.main
 
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
+import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.LazyListState
 import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
+import cn.super12138.todo.R
 import cn.super12138.todo.logic.database.TodoEntity
 import cn.super12138.todo.ui.pages.main.components.TodoCard
 
 @Composable
 fun ManagerFragment(
     state: LazyListState,
+    list: List<TodoEntity>,
     onItemClick: (TodoEntity) -> Unit = {},
     onItemChecked: (TodoEntity) -> Unit = {},
-    list: List<TodoEntity>,
     modifier: Modifier = Modifier
 ) {
     LazyColumn(
@@ -27,19 +35,34 @@ fun ManagerFragment(
             end = 10.dp,
         )
     ) {
-        items(
-            items = list,
-            key = { it.id }
-        ) { item ->
-            TodoCard(
-                content = item.content,
-                subject = item.subject,
-                onCardClick = { onItemClick(item) },
-                onChecked = { onItemChecked(item) },
-                modifier = Modifier
-                    .padding(vertical = 5.dp)
-                    .animateItem()
-            )
+        if (list.isEmpty()) {
+            item {
+                Column(
+                    verticalArrangement = Arrangement.Center,
+                    horizontalAlignment = Alignment.CenterHorizontally,
+                    modifier = Modifier.fillMaxSize()
+                ) {
+                    Text(
+                        text = stringResource(R.string.tips_no_task),
+                        style = MaterialTheme.typography.titleMedium
+                    )
+                }
+            }
+        } else {
+            items(
+                items = list,
+                key = { it.id }
+            ) { item ->
+                TodoCard(
+                    content = item.content,
+                    subject = item.subject,
+                    onCardClick = { onItemClick(item) },
+                    onChecked = { onItemChecked(item) },
+                    modifier = Modifier
+                        .padding(vertical = 5.dp)
+                        .animateItem()
+                )
+            }
         }
     }
 }

app/src/main/res/values-zh-rCN/strings.xml

@@ -3,4 +3,5 @@
     <string name="app_name">待办</string>
     <string name="pages_settings">设置</string>
     <string name="action_add_todo">添加待办</string>
+    <string name="tips_no_task">目前没有任务要完成的，好好休息一些下吧~</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -2,4 +2,5 @@
     <string name="app_name">To Do</string>
     <string name="pages_settings">Settings</string>
     <string name="action_add_todo">Add todo</string>
+    <string name="tips_no_task">There are no tasks to complete at the moment, take a good rest!</string>
 </resources>