feat(settings): 支持备份与恢复数据库

app/src/main/kotlin/cn/super12138/todo/constants/Constants.kt

@@ -7,6 +7,8 @@ object Constants {
     const val KEY_TODO_FAB_TRANSITION = "todo_fab"
     const val KEY_TODO_CONTENT_TRANSITION = "todo_content"
 
+    const val DB_NAME = "todo"
+
     const val SP_NAME = "cn.super12138.todo_preferences"
 
     const val PREF_DYNAMIC_COLOR = "dynamic_color"

app/src/main/kotlin/cn/super12138/todo/logic/database/TodoDao.kt

@@ -6,6 +6,7 @@ import androidx.room.Insert
 import androidx.room.OnConflictStrategy
 import androidx.room.Query
 import androidx.room.Update
+import cn.super12138.todo.constants.Constants
 import kotlinx.coroutines.flow.Flow
 
 @Dao
@@ -13,7 +14,7 @@ interface TodoDao {
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     suspend fun insert(toDo: TodoEntity)
 
-    @Query("SELECT * FROM todo")
+    @Query("SELECT * FROM ${Constants.DB_NAME}")
     fun getAll(): Flow<List<TodoEntity>>
 
     @Update
@@ -22,7 +23,7 @@ interface TodoDao {
     @Delete
     suspend fun delete(toDo: TodoEntity)
 
-    @Query("DELETE FROM todo WHERE id in (:toDoIds)")
+    @Query("DELETE FROM ${Constants.DB_NAME} WHERE id in (:toDoIds)")
     suspend fun deleteFromIds(toDoIds: Set<Int>)
 
     /*@Query("DELETE FROM todo")

app/src/main/kotlin/cn/super12138/todo/logic/database/TodoDatabase.kt

@@ -4,6 +4,7 @@ import android.content.Context
 import androidx.room.Database
 import androidx.room.Room
 import androidx.room.RoomDatabase
+import cn.super12138.todo.constants.Constants
 
 @Database(entities = [TodoEntity::class], version = 2)
 abstract class TodoDatabase : RoomDatabase() {
@@ -17,7 +18,7 @@ abstract class TodoDatabase : RoomDatabase() {
                 val instance = Room.databaseBuilder(
                     context.applicationContext,
                     TodoDatabase::class.java,
-                    "todo"
+                    Constants.DB_NAME
                 )
                     .fallbackToDestructiveMigration()
                     .build()

app/src/main/kotlin/cn/super12138/todo/ui/TodoDefaults.kt

@@ -7,6 +7,7 @@ object TodoDefaults {
      * 屏幕左右两边预留边距（防止内容全部贴边显示过丑）
      */
     val screenPadding = 16.dp
+
     /**
      * 待办卡片默认高度
      */

app/src/main/kotlin/cn/super12138/todo/ui/activities/CrashActivity.kt

@@ -2,13 +2,11 @@ package cn.super12138.todo.ui.activities
 
 import android.os.Build
 import android.os.Bundle
-import android.view.HapticFeedbackConstants
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalView
 import androidx.compose.ui.res.stringResource
 import cn.super12138.todo.R
 import cn.super12138.todo.ui.pages.crash.CrashPage
@@ -54,13 +52,9 @@ class CrashActivity : ComponentActivity() {
 
         setContent {
             ToDoTheme {
-                val view = LocalView.current
                 CrashPage(
                     crashLog = if (crashLogs == null) stringResource(R.string.tip_no_crash_logs) else crashLogFormatted,
-                    exitApp = {
+                    exitApp = { finishAffinity() },
-                        view.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP)
-                        finishAffinity()
-                    },
                     modifier = Modifier.fillMaxSize()
                 )
             }

app/src/main/kotlin/cn/super12138/todo/ui/components/Dialogs.kt

@@ -15,6 +15,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.platform.LocalView
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.window.DialogProperties
 import cn.super12138.todo.R
 import cn.super12138.todo.utils.VibrationUtils
 
@@ -25,6 +26,7 @@ fun WarningDialog(
     description: String,
     onConfirm: () -> Unit,
     onDismiss: () -> Unit,
+    properties: DialogProperties = DialogProperties(),
     modifier: Modifier = Modifier
 ) {
     BasicDialog(
@@ -39,6 +41,48 @@ fun WarningDialog(
             onDismiss()
         },
         onDismiss = onDismiss,
+        properties = properties,
+        modifier = modifier
+    )
+}
+
+@Composable
+fun ConfirmDialog(
+    visible: Boolean,
+    icon: ImageVector,
+    title: String,
+    text: String,
+    confirmButton: String,
+    onConfirm: () -> Unit,
+    onDismiss: () -> Unit,
+    properties: DialogProperties = DialogProperties(),
+    modifier: Modifier = Modifier
+) {
+    val view = LocalView.current
+    BasicDialog(
+        visible = visible,
+        icon = {
+            Icon(
+                imageVector = icon,
+                contentDescription = null // 会跟下面的文本重复，所以设置为 null
+            )
+        },
+        title = { Text(title) },
+        text = { Text(text) },
+        confirmButton = {
+            FilledTonalButton(
+                onClick = {
+                    VibrationUtils.performHapticFeedback(view)
+                    onConfirm()
+                    onDismiss()
+                }
+            ) {
+                Text(confirmButton)
+            }
+        },
+        dismissButton = {},
+        onDismissRequest = onDismiss,
+        properties = properties,
         modifier = modifier
     )
 }
@@ -53,6 +97,7 @@ fun BasicDialog(
     dismissButton: String,
     onConfirm: () -> Unit,
     onDismiss: () -> Unit,
+    properties: DialogProperties = DialogProperties(),
     modifier: Modifier = Modifier
 ) {
     val view = LocalView.current
@@ -87,6 +132,7 @@ fun BasicDialog(
             }
         },
         onDismissRequest = onDismiss,
+        properties = properties,
         modifier = modifier
     )
 }
@@ -100,6 +146,7 @@ fun BasicDialog(
     confirmButton: (@Composable () -> Unit),
     dismissButton: (@Composable () -> Unit)? = null,
     onDismissRequest: () -> Unit,
+    properties: DialogProperties = DialogProperties(),
     modifier: Modifier = Modifier
 ) {
     if (visible) {
@@ -114,6 +161,7 @@ fun BasicDialog(
             confirmButton = confirmButton,
             dismissButton = dismissButton,
             onDismissRequest = onDismissRequest,
+            properties = properties,
             modifier = modifier
         )
     }

app/src/main/kotlin/cn/super12138/todo/ui/components/Scaffolds.kt

@@ -72,6 +72,7 @@ fun LargeTopAppBarScaffold(
             }
         },
         scrollBehavior = scrollBehavior,
+        snackbarHost = snackbarHost,
         floatingActionButton = floatingActionButton,
         floatingActionButtonPosition = floatingActionButtonPosition,
         contentWindowInsets = contentWindowInsets

app/src/main/kotlin/cn/super12138/todo/ui/navigation/TodoNavigation.kt

@@ -13,6 +13,7 @@ import cn.super12138.todo.ui.pages.main.MainPage
 import cn.super12138.todo.ui.pages.settings.SettingsAbout
 import cn.super12138.todo.ui.pages.settings.SettingsAboutLicence
 import cn.super12138.todo.ui.pages.settings.SettingsAppearance
+import cn.super12138.todo.ui.pages.settings.SettingsData
 import cn.super12138.todo.ui.pages.settings.SettingsInterface
 import cn.super12138.todo.ui.pages.settings.SettingsMain
 import cn.super12138.todo.ui.theme.materialSharedAxisXIn
@@ -94,6 +95,7 @@ fun TodoNavigation(
                     toAppearancePage = { navController.navigate(TodoScreen.SettingsAppearance.name) },
                     toAboutPage = { navController.navigate(TodoScreen.SettingsAbout.name) },
                     toInterfacePage = { navController.navigate(TodoScreen.SettingsInterface.name) },
+                    toDataPage = { navController.navigate(TodoScreen.SettingsData.name) },
                     onNavigateUp = { navController.navigateUp() },
                 )
             }
@@ -112,6 +114,13 @@ fun TodoNavigation(
                 )
             }
 
+            composable(TodoScreen.SettingsData.name) {
+                SettingsData(
+                    viewModel = viewModel,
+                    onNavigateUp = { navController.navigateUp() }
+                )
+            }
+
             composable(TodoScreen.SettingsAbout.name) {
                 SettingsAbout(
                     onNavigateUp = { navController.navigateUp() },

app/src/main/kotlin/cn/super12138/todo/ui/navigation/TodoScreen.kt

@@ -6,6 +6,7 @@ enum class TodoScreen {
     SettingsMain,
     SettingsAppearance,
     SettingsInterface,
+    SettingsData,
     SettingsAbout,
     SettingsAboutLicence
 }

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

@@ -13,7 +13,6 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.outlined.ExitToApp
 import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.Icon
 import androidx.compose.material3.LargeTopAppBar
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold

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

@@ -206,7 +206,8 @@ fun TodoEditorPage(
 
             Spacer(Modifier.size(5.dp))
 
-            val priorityName = Priority.entries.map { it.getDisplayName(context) } // 要不要用 remember 呢
+            val priorityName =
+                Priority.entries.map { it.getDisplayName(context) } // 要不要用 remember 呢
             val interactionSource = remember { MutableInteractionSource() }
             Slider(
                 modifier = Modifier.semantics {

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

@@ -50,7 +50,11 @@ fun ManagerFragment(
     ) {
         LazyColumn(
             state = state,
-            contentPadding = PaddingValues(start = TodoDefaults.screenPadding, bottom = TodoDefaults.toDoCardHeight / 2, end = TodoDefaults.screenPadding)
+            contentPadding = PaddingValues(
+                start = TodoDefaults.screenPadding,
+                bottom = TodoDefaults.toDoCardHeight / 2,
+                end = TodoDefaults.screenPadding
+            )
         ) {
             if (list.isEmpty()) {
                 item {

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

@@ -4,12 +4,9 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.Add
 import androidx.compose.material3.FloatingActionButtonDefaults
 import androidx.compose.material3.FloatingActionButtonElevation
-import androidx.compose.material3.Icon
-import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.style.TextOverflow
 import cn.super12138.todo.R
 import cn.super12138.todo.ui.components.AnimatedExtendedFloatingActionButton
 

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

@@ -0,0 +1,159 @@
+package cn.super12138.todo.ui.pages.settings
+
+import android.content.Context
+import android.content.Intent
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.FileDownload
+import androidx.compose.material.icons.outlined.FileUpload
+import androidx.compose.material.icons.outlined.RestartAlt
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.SnackbarHost
+import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.input.nestedscroll.nestedScroll
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.window.DialogProperties
+import cn.super12138.todo.R
+import cn.super12138.todo.ui.activities.MainActivity
+import cn.super12138.todo.ui.components.ConfirmDialog
+import cn.super12138.todo.ui.components.LargeTopAppBarScaffold
+import cn.super12138.todo.ui.pages.settings.components.SettingsItem
+import cn.super12138.todo.ui.viewmodels.MainViewModel
+import cn.super12138.todo.utils.SystemUtils
+import kotlinx.coroutines.launch
+import kotlin.system.exitProcess
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun SettingsData(
+    viewModel: MainViewModel,
+    onNavigateUp: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    val context = LocalContext.current
+
+    var showRestoreDialog by rememberSaveable { mutableStateOf(false) }
+    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior()
+    val snackbarHostState = remember { SnackbarHostState() }
+    val scope = rememberCoroutineScope()
+
+    val backupLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.CreateDocument("application/zip"),
+        onResult = {
+            if (it != null) {
+                viewModel.backupDatabase(
+                    uri = it,
+                    context = context,
+                    onResult = { success ->
+                        if (success) {
+                            scope.launch {
+                                snackbarHostState.showSnackbar(
+                                    context.getString(R.string.tip_backup_success)
+                                )
+                            }
+                        } else {
+                            scope.launch {
+                                snackbarHostState.showSnackbar(
+                                    context.getString(R.string.tip_backup_failed)
+                                )
+                            }
+                        }
+                    }
+                )
+            }
+        }
+    )
+
+    val restoreLauncher = rememberLauncherForActivityResult(
+        contract = ActivityResultContracts.OpenDocument(),
+        onResult = { it ->
+            if (it != null) {
+                viewModel.restoreDatabase(
+                    uri = it,
+                    context = context,
+                    onResult = { success ->
+                        if (success) {
+                            showRestoreDialog = true
+                        } else {
+                            scope.launch {
+                                snackbarHostState.showSnackbar(
+                                    context.getString(R.string.tip_restore_failed)
+                                )
+                            }
+                        }
+                    }
+                )
+            }
+        }
+    )
+
+    LargeTopAppBarScaffold(
+        title = stringResource(R.string.pref_data),
+        onBack = onNavigateUp,
+        scrollBehavior = scrollBehavior,
+        snackbarHost = { SnackbarHost(snackbarHostState) },
+        modifier = modifier.nestedScroll(scrollBehavior.nestedScrollConnection),
+    ) { innerPadding ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(innerPadding)
+                .verticalScroll(rememberScrollState())
+        ) {
+            SettingsItem(
+                leadingIcon = Icons.Outlined.FileDownload,
+                title = stringResource(R.string.pref_backup),
+                description = stringResource(R.string.pref_backup_desc),
+                onClick = {
+                    backupLauncher.launch("Todo-backup-${SystemUtils.getTime()}.zip")
+                }
+            )
+            SettingsItem(
+                leadingIcon = Icons.Outlined.FileUpload,
+                title = stringResource(R.string.pref_restore),
+                description = stringResource(R.string.pref_restore_desc),
+                onClick = {
+                    restoreLauncher.launch(arrayOf("application/zip"))
+                }
+            )
+        }
+    }
+    ConfirmDialog(
+        visible = showRestoreDialog,
+        icon = Icons.Outlined.RestartAlt,
+        title = stringResource(R.string.tip_tips),
+        text = stringResource(R.string.tip_restore_success),
+        confirmButton = stringResource(R.string.action_confirm),
+        onConfirm = { restartApp(context) },
+        onDismiss = { showRestoreDialog = false },
+        properties = DialogProperties(dismissOnBackPress = false, dismissOnClickOutside = false)
+    )
+}
+
+private fun restartApp(context: Context) {
+    val intent = Intent(
+        context,
+        MainActivity::class.java
+    ).apply {
+        flags =
+            Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
+    }
+    context.startActivity(intent)
+    exitProcess(0)
+}

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

@@ -7,6 +7,7 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.ColorLens
+import androidx.compose.material.icons.outlined.Dns
 import androidx.compose.material.icons.outlined.Info
 import androidx.compose.material.icons.outlined.ViewComfy
 import androidx.compose.material3.ExperimentalMaterial3Api
@@ -23,6 +24,7 @@ import cn.super12138.todo.ui.pages.settings.components.SettingsItem
 fun SettingsMain(
     toAppearancePage: () -> Unit,
     toInterfacePage: () -> Unit,
+    toDataPage: () -> Unit,
     toAboutPage: () -> Unit,
     onNavigateUp: () -> Unit,
     modifier: Modifier = Modifier
@@ -51,6 +53,12 @@ fun SettingsMain(
                 description = stringResource(R.string.pref_interface_interaction_desc),
                 onClick = toInterfacePage
             )
+            SettingsItem(
+                leadingIcon = Icons.Outlined.Dns,
+                title = stringResource(R.string.pref_data),
+                description = stringResource(R.string.pref_data_desc),
+                onClick = toDataPage
+            )
             SettingsItem(
                 leadingIcon = Icons.Outlined.Info,
                 title = stringResource(R.string.pref_about),

app/src/main/kotlin/cn/super12138/todo/ui/pages/settings/components/SettingsItem.kt

@@ -56,7 +56,7 @@ fun SettingsItem(
             leadingIcon?.let {
                 Icon(
                     imageVector = it,
-                    contentDescription = title,
+                    contentDescription = null,
                     tint = MaterialTheme.colorScheme.onSurface,
                     modifier = Modifier.padding(end = 24.dp),
                 )

app/src/main/kotlin/cn/super12138/todo/ui/viewmodels/MainViewModel.kt

@@ -1,16 +1,21 @@
 package cn.super12138.todo.ui.viewmodels
 
+import android.content.Context
+import android.net.Uri
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import cn.super12138.todo.TodoApp
+import cn.super12138.todo.constants.Constants
 import cn.super12138.todo.constants.GlobalValues
 import cn.super12138.todo.logic.Repository
 import cn.super12138.todo.logic.database.TodoEntity
 import cn.super12138.todo.logic.model.ContrastLevel
 import cn.super12138.todo.logic.model.DarkMode
 import cn.super12138.todo.logic.model.SortingMethod
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
@@ -18,6 +23,15 @@ import kotlinx.coroutines.flow.firstOrNull
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import java.io.BufferedInputStream
+import java.io.BufferedOutputStream
+import java.io.File
+import java.io.FileInputStream
+import java.io.FileOutputStream
+import java.util.zip.ZipEntry
+import java.util.zip.ZipInputStream
+import java.util.zip.ZipOutputStream
 
 class MainViewModel : ViewModel() {
     // 待办
@@ -33,6 +47,7 @@ class MainViewModel : ViewModel() {
             SortingMethod.AlphabeticalDescending -> list.sortedByDescending { it.content }
         }
     }
+
     val showConfetti = mutableStateOf(false)
     var selectedEditTodo by mutableStateOf<TodoEntity?>(null)
         private set
@@ -150,4 +165,91 @@ class MainViewModel : ViewModel() {
     fun setSortingMethod(sortingMethod: SortingMethod) {
         appSortingMethod = sortingMethod
     }
+
+    fun backupDatabase(uri: Uri, context: Context, onResult: (completed: Boolean) -> Unit) {
+        viewModelScope.launch(Dispatchers.IO) {
+            try {
+                // 获取数据库文件路径
+                val dbPath = TodoApp.db.openHelper.writableDatabase.path
+                // 开启输出文件流，输出位置为用户选取的文件夹URI
+                context.contentResolver.openOutputStream(uri)?.use { outputStream ->
+                    ZipOutputStream(BufferedOutputStream(outputStream)).use { zipOutStream ->
+                        val dbFile = context.getDatabasePath(Constants.DB_NAME)
+                        val dbWal = File("$dbPath-wal")
+                        val dbShm = File("$dbPath-shm")
+
+                        addFileToZip(dbFile, dbFile.name, zipOutStream)
+                        addFileToZip(dbWal, dbWal.name, zipOutStream)
+                        addFileToZip(dbShm, dbShm.name, zipOutStream)
+                    }
+                }
+
+                // 执行成功的回调
+                withContext(Dispatchers.Main) {
+                    onResult(true) // 成功
+                }
+            } catch (e: Exception) {
+                e.printStackTrace()
+                // 执行失败的回调
+                withContext(Dispatchers.Main) {
+                    onResult(false) // 失败
+                }
+            }
+        }
+    }
+
+    fun restoreDatabase(uri: Uri, context: Context, onResult: (completed: Boolean) -> Unit) {
+        viewModelScope.launch(Dispatchers.IO) {
+            try {
+                // 获取数据库文件路径
+                val outputPath = context.getDatabasePath(Constants.DB_NAME).parent
+                context.contentResolver.openInputStream(uri)?.use { inputStream ->
+                    ZipInputStream(BufferedInputStream(inputStream)).use { zipInputStream ->
+                        var zipEntry: ZipEntry? = zipInputStream.nextEntry
+                        while (zipEntry != null) {
+                            val outputFile = File(outputPath, zipEntry.name)
+                            if (zipEntry.isDirectory) {
+                                outputFile.mkdirs()
+                            } else {
+                                outputFile.parentFile?.mkdirs()
+                                FileOutputStream(outputFile).use { zipInputStream.copyTo(it) }
+                            }
+                            zipInputStream.closeEntry()
+                            zipEntry = zipInputStream.nextEntry
+                        }
+                    }
+                }
+                withContext(Dispatchers.Main) {
+                    onResult(true) // 成功
+                }
+            } catch (e: Exception) {
+                e.printStackTrace()
+                withContext(Dispatchers.Main) {
+                    onResult(false) // 失败
+                }
+            }
+        }
+    }
+
+    private fun addFileToZip(file: File, fileName: String, zipOut: ZipOutputStream) {
+        if (file.isHidden) {
+            return // 忽略隐藏文件
+        }
+        if (file.isDirectory) {
+            // 如果是文件夹，递归处理
+            val children = file.listFiles()
+            if (children != null) {
+                for (childFile in children) {
+                    addFileToZip(childFile, "$fileName/${childFile.name}", zipOut)
+                }
+            }
+        } else {
+            // 如果是文件，写入 ZIP
+            FileInputStream(file).use { fis ->
+                val zipEntry = ZipEntry(fileName)
+                zipOut.putNextEntry(zipEntry)
+                fis.copyTo(zipOut)
+            }
+        }
+    }
 }

app/src/main/kotlin/cn/super12138/todo/utils/SystemUtils.kt

@@ -2,6 +2,9 @@ package cn.super12138.todo.utils
 
 import android.content.Context
 import android.os.Build
+import java.text.SimpleDateFormat
+import java.util.Calendar
+import java.util.Locale
 
 object SystemUtils {
     /**
@@ -18,4 +21,22 @@ object SystemUtils {
         }
         return "$verName ($verCode)"
     }
+
+    /**
+     * 获取格式化后的当前时间
+     * 参考 https://github.com/rafi0101/Android-Room-Database-Backup/blob/master/core/src/main/java/de/raphaelebner/roomdatabasebackup/core/RoomBackup.kt#L770
+     * @return 当前时间
+     */
+    fun getTime(): String {
+        val currentTime = Calendar.getInstance().time
+
+        val sdf =
+            if (Build.VERSION.SDK_INT <= 28) {
+                SimpleDateFormat("yyyy-MM-dd-HH_mm_ss", Locale.getDefault())
+            } else {
+                SimpleDateFormat("yyyy-MM-dd-HH:mm:ss", Locale.getDefault())
+            }
+
+        return sdf.format(currentTime)
+    }
 }

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

@@ -94,4 +94,14 @@
     <string name="pref_haptic_feedback_desc">为某些操作提供轻微的震动反馈</string>
     <string name="tip_tips">提示</string>
     <string name="pref_haptic_feedback_more_info">使用此项前须先在系统设置中打开触感反馈（通常在“声音与震动”里的“触感反馈”一项）</string>
+    <string name="pref_data">数据</string>
+    <string name="pref_data_desc">备份与恢复、管理数据</string>
+    <string name="pref_backup">备份数据</string>
+    <string name="pref_backup_desc">将待办数据库保存在你的设备上</string>
+    <string name="pref_restore">恢复数据</string>
+    <string name="pref_restore_desc">从你的设备上恢复待办数据库</string>
+    <string name="tip_backup_success">备份成功</string>
+    <string name="tip_backup_failed">备份失败</string>
+    <string name="tip_restore_success">数据恢复成功，需要重启应用以加载数据</string>
+    <string name="tip_restore_failed">恢复失败</string>
 </resources>

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

@@ -48,7 +48,7 @@
     <string name="priority_urgent">Urgent</string>
     <string name="label_priority">Priority</string>
     <string name="pref_appearance">Appearance</string>
-    <string name="pref_appearance_desc">Theme, color style</string>
+    <string name="pref_appearance_desc">Theme, Color style</string>
     <string name="pref_appearance_dynamic_color">Dynamic Color</string>
     <string name="pref_appearance_dynamic_color_desc">Use the system wallpaper\'s theme color, available on Android 12+</string>
     <string name="pref_palette_style">Palette Style</string>
@@ -76,7 +76,7 @@
     <string name="contrast_very_high">Very High</string>
     <string name="tip_change_contrast_level">Change the contrast level</string>
     <string name="pref_interface_interaction">Interface &amp; Interaction</string>
-    <string name="pref_interface_interaction_desc">To-Do List, haptic feedback</string>
+    <string name="pref_interface_interaction_desc">To-Do List, Haptic Feedback</string>
     <string name="pref_show_completed">Show Completed Tasks</string>
     <string name="pref_show_completed_desc">Show completed tasks in to-do list</string>
     <string name="pref_category_todo_list">To-Do List</string>
@@ -95,4 +95,14 @@
     <string name="pref_haptic_feedback_desc">Provide slight vibration feedback for some operations</string>
     <string name="tip_tips">Tips</string>
     <string name="pref_haptic_feedback_more_info">Before using this feature, you need to enable haptic feedback in the system settings (usually under the \\\"Sound &amp; Vibration\\\" section in the \\\"Haptic Feedback\\\" option)</string>
+    <string name="pref_data">Data</string>
+    <string name="pref_data_desc">Backup and Restore, Manage Data</string>
+    <string name="pref_backup">Backup</string>
+    <string name="pref_backup_desc">Save the to-do database on your device</string>
+    <string name="pref_restore">Restore</string>
+    <string name="pref_restore_desc">Restore the to-do database from your device</string>
+    <string name="tip_backup_success">Backup successful</string>
+    <string name="tip_backup_failed">Backup failed</string>
+    <string name="tip_restore_success">Restore successful, restart the app to load data</string>
+    <string name="tip_restore_failed">Restore failed</string>
 </resources>

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

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+
     <style name="Theme.ToDo.Starting" parent="Theme.SplashScreen">
         <item name="windowSplashScreenBackground">@color/background</item>
         <item name="windowSplashScreenAnimatedIcon">@drawable/ic_launcher_foreground</item>