feat(settings): 安全模式

同时将主题逻辑移入 ViewModel
崩溃界面支持主题色板、动态颜色和对比度
提取部分方法

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

@@ -29,6 +29,9 @@ object Constants {
     const val PREF_SORTING_METHOD = "sorting_method"
     const val PREF_SORTING_METHOD_DEFAULT = 1
 
+    const val PREF_SECURE_MODE = "secure_mode"
+    const val PREF_SECURE_MODE_DEFAULT = false
+
     const val PREF_HAPTIC_FEEDBACK = "haptic_feedback"
     const val PREF_HAPTIC_FEEDBACK_DEFAULT = true
 }

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

@@ -27,6 +27,10 @@ object GlobalValues {
         key = Constants.PREF_SORTING_METHOD,
         default = Constants.PREF_SORTING_METHOD_DEFAULT
     )
+    var secureMode: Boolean by SPDelegates(
+        key = Constants.PREF_SECURE_MODE,
+        default = Constants.PREF_SECURE_MODE_DEFAULT
+    )
     var hapticFeedback: Boolean by SPDelegates(
         key = Constants.PREF_HAPTIC_FEEDBACK,
         default = Constants.PREF_HAPTIC_FEEDBACK_DEFAULT

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

@@ -18,6 +18,7 @@ import cn.super12138.todo.logic.model.DarkMode.Dark
 import cn.super12138.todo.logic.model.DarkMode.FollowSystem
 import cn.super12138.todo.logic.model.DarkMode.Light
 import cn.super12138.todo.ui.pages.crash.CrashPage
+import cn.super12138.todo.ui.theme.PaletteStyle
 import cn.super12138.todo.ui.theme.ToDoTheme
 import java.text.SimpleDateFormat
 import java.util.Calendar
@@ -74,7 +75,12 @@ class CrashActivity : ComponentActivity() {
                 }
             }
 
-            ToDoTheme(darkTheme = darkTheme) {
+            ToDoTheme(
+                darkTheme = darkTheme,
+                style = PaletteStyle.fromId(GlobalValues.paletteStyle),
+                contrastLevel = GlobalValues.contrastLevel.toDouble(),
+                dynamicColor = GlobalValues.dynamicColor
+            ) {
                 CrashPage(
                     crashLog = if (crashLogs == null) stringResource(R.string.tip_no_crash_logs) else crashLogFormatted,
                     exitApp = { finishAffinity() },

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

@@ -1,6 +1,7 @@
 package cn.super12138.todo.ui.activities
 
 import android.os.Bundle
+import android.view.WindowManager
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
@@ -44,9 +45,22 @@ class MainActivity : ComponentActivity() {
                 }
             }
 
+            LaunchedEffect(mainViewModel.appSecureMode) {
+                if (mainViewModel.appSecureMode) {
+                    window.setFlags(
+                        WindowManager.LayoutParams.FLAG_SECURE,
+                        WindowManager.LayoutParams.FLAG_SECURE
+                    )
+                } else {
+                    window.clearFlags(WindowManager.LayoutParams.FLAG_SECURE)
+                }
+            }
+
             ToDoTheme(
                 darkTheme = darkTheme,
-                contrastLevel = mainViewModel.appContrastLevel.value.toDouble()
+                style = mainViewModel.appPaletteStyle,
+                contrastLevel = mainViewModel.appContrastLevel.value.toDouble(),
+                dynamicColor = mainViewModel.appDynamicColorEnable
             ) {
                 Surface(color = MaterialTheme.colorScheme.background) {
                     TodoNavigation(

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

@@ -20,8 +20,6 @@ import cn.super12138.todo.ui.pages.settings.components.SwitchSettingsItem
 import cn.super12138.todo.ui.pages.settings.components.contrast.ContrastPicker
 import cn.super12138.todo.ui.pages.settings.components.darkmode.DarkModePicker
 import cn.super12138.todo.ui.pages.settings.components.palette.PalettePicker
-import cn.super12138.todo.ui.theme.appPaletteStyle
-import cn.super12138.todo.ui.theme.isDynamicColorEnable
 import cn.super12138.todo.ui.viewmodels.MainViewModel
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -49,7 +47,7 @@ fun SettingsAppearance(
             PalettePicker(
                 isDarkMode = viewModel.appDarkMode,
                 contrastLevel = viewModel.appContrastLevel,
-                onPaletteChange = { appPaletteStyle = it }
+                onPaletteChange = { viewModel.setPaletteStyle(it) }
             )
 
             ContrastPicker(onContrastChange = { viewModel.setContrastLevel(it) })
@@ -60,7 +58,7 @@ fun SettingsAppearance(
                 leadingIcon = Icons.Outlined.ColorLens,
                 title = stringResource(R.string.pref_appearance_dynamic_color),
                 description = stringResource(R.string.pref_appearance_dynamic_color_desc),
-                onCheckedChange = { isDynamicColorEnable = it },
+                onCheckedChange = { viewModel.setDynamicColor(it) },
             )
         }
     }

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

@@ -8,6 +8,7 @@ import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.outlined.Sort
 import androidx.compose.material.icons.outlined.Checklist
+import androidx.compose.material.icons.outlined.Shield
 import androidx.compose.material.icons.outlined.Vibration
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.TopAppBarDefaults
@@ -74,7 +75,15 @@ fun SettingsInterface(
                 onClick = { showSortingMethodDialog = true }
             )
 
-            SettingsCategory(stringResource(R.string.pref_category_global_interaction))
+            SettingsCategory(stringResource(R.string.pref_category_global))
+            SwitchSettingsItem(
+                key = Constants.PREF_SECURE_MODE,
+                default = Constants.PREF_SECURE_MODE_DEFAULT,
+                leadingIcon = Icons.Outlined.Shield,
+                title = stringResource(R.string.pref_secure_mode),
+                description = stringResource(R.string.pref_secure_mode_desc),
+                onCheckedChange = { viewModel.setSecureMode(it) }
+            )
             SwitchSettingsItem(
                 key = Constants.PREF_HAPTIC_FEEDBACK,
                 default = Constants.PREF_HAPTIC_FEEDBACK_DEFAULT,

app/src/main/kotlin/cn/super12138/todo/ui/theme/Theme.kt

@@ -4,24 +4,17 @@ import android.os.Build
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.setValue
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.res.colorResource
-import cn.super12138.todo.constants.GlobalValues
-
-var isDynamicColorEnable by mutableStateOf(GlobalValues.dynamicColor)
-var appPaletteStyle by mutableStateOf(PaletteStyle.fromId(GlobalValues.paletteStyle))
 
 @Composable
 fun ToDoTheme(
     color: Color? = null,
     darkTheme: Boolean = isSystemInDarkTheme(),
-    style: PaletteStyle = appPaletteStyle,
+    style: PaletteStyle = PaletteStyle.TonalSpot,
     contrastLevel: Double = 0.0,
     // Dynamic color is available on Android 12+
-    dynamicColor: Boolean = isDynamicColorEnable,
+    dynamicColor: Boolean = true,
     content: @Composable () -> Unit
 ) {
     val baseColor = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S && dynamicColor) {

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

@@ -15,6 +15,8 @@ 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 cn.super12138.todo.ui.theme.PaletteStyle
+import cn.super12138.todo.utils.FileUtils
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableStateFlow
@@ -27,7 +29,6 @@ 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
@@ -54,10 +55,16 @@ class MainViewModel : ViewModel() {
     var showCompletedTodos by mutableStateOf(GlobalValues.showCompleted)
 
     // 主题颜色
+    var appDynamicColorEnable by mutableStateOf(GlobalValues.dynamicColor)
+        private set
+    var appPaletteStyle by mutableStateOf(PaletteStyle.fromId(GlobalValues.paletteStyle))
+        private set
     var appDarkMode by mutableStateOf(DarkMode.fromId(GlobalValues.darkMode))
         private set
     var appContrastLevel by mutableStateOf(ContrastLevel.fromFloat(GlobalValues.contrastLevel))
         private set
+    var appSecureMode by mutableStateOf(GlobalValues.secureMode)
+        private set
 
     // 多选逻辑参考：https://github.com/X1nto/Mauth
     private val _selectedTodoIds = MutableStateFlow(listOf<Int>())
@@ -150,6 +157,14 @@ class MainViewModel : ViewModel() {
     /**
      * 应用设置
      */
+    fun setDynamicColor(enabled: Boolean) {
+        appDynamicColorEnable = enabled
+    }
+
+    fun setPaletteStyle(paletteStyle: PaletteStyle) {
+        appPaletteStyle = paletteStyle
+    }
+
     fun setDarkMode(darkMode: DarkMode) {
         appDarkMode = darkMode
     }
@@ -166,6 +181,10 @@ class MainViewModel : ViewModel() {
         appSortingMethod = sortingMethod
     }
 
+    fun setSecureMode(enabled: Boolean) {
+        appSecureMode = enabled
+    }
+
     fun backupDatabase(uri: Uri, context: Context, onResult: (completed: Boolean) -> Unit) {
         viewModelScope.launch(Dispatchers.IO) {
             try {
@@ -178,9 +197,9 @@ class MainViewModel : ViewModel() {
                         val dbWal = File("$dbPath-wal")
                         val dbShm = File("$dbPath-shm")
 
-                        addFileToZip(dbFile, dbFile.name, zipOutStream)
+                        FileUtils.addFileToZip(dbFile, dbFile.name, zipOutStream)
-                        addFileToZip(dbWal, dbWal.name, zipOutStream)
+                        FileUtils.addFileToZip(dbWal, dbWal.name, zipOutStream)
-                        addFileToZip(dbShm, dbShm.name, zipOutStream)
+                        FileUtils.addFileToZip(dbShm, dbShm.name, zipOutStream)
                     }
                 }
 
@@ -230,26 +249,4 @@ class MainViewModel : ViewModel() {
             }
         }
     }
-
-    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/FileUtils.kt

@@ -0,0 +1,30 @@
+package cn.super12138.todo.utils
+
+import java.io.File
+import java.io.FileInputStream
+import java.util.zip.ZipEntry
+import java.util.zip.ZipOutputStream
+
+object FileUtils {
+    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/res/values-zh-rCN/strings.xml

@@ -89,7 +89,7 @@
     <string name="sorting_alphabetical_ascending">首字母（升序）</string>
     <string name="sorting_alphabetical_descending">首字母（降序）</string>
     <string name="pref_sorting_method">排序方式</string>
-    <string name="pref_category_global_interaction">全局交互</string>
+    <string name="pref_category_global">全局设置</string>
     <string name="pref_haptic_feedback">触感反馈</string>
     <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>
@@ -104,4 +104,6 @@
     <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>
+    <string name="pref_secure_mode">安全模式</string>
+    <string name="pref_secure_mode_desc">阻止截屏并保护后台预览图</string>
 </resources>

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

@@ -90,7 +90,7 @@
     <string name="sorting_alphabetical_ascending">Alphabetical (Ascending)</string>
     <string name="sorting_alphabetical_descending">Alphabetical (Descending)</string>
     <string name="pref_sorting_method">Sorting Method</string>
-    <string name="pref_category_global_interaction">Global Interaction</string>
+    <string name="pref_category_global">Global Settings</string>
     <string name="pref_haptic_feedback">Haptic Feedback</string>
     <string name="pref_haptic_feedback_desc">Provide slight vibration feedback for some operations</string>
     <string name="tip_tips">Tips</string>
@@ -105,4 +105,6 @@
     <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>
+    <string name="pref_secure_mode">Secure Mode</string>
+    <string name="pref_secure_mode_desc">Prevent screenshots and protect the background preview image</string>
 </resources>