feat: add Simplified Chinese (zh-CN) localization and in-app language switcher

README.zh-CN.md

@@ -0,0 +1,33 @@
+<img src='/metadata/en-US/images/header.png'/>
+
+# 蓝牙雷达
+
+<!-- <a href='https://play.google.com/store/apps/details?id=f.cking.software&pcampaignid=pcampaignidMKT-Other-global-all-co-prtnr-py-PartBadge-Mar2515-1'><img alt='Get it on Google Play' src='https://github.com/BLE-Research-Group/MetaRadar/assets/18288554/dd3fc41a-9b51-4747-9a2c-57b37d4706aa' width='200'/></a> -->
+<a href='https://github.com/BLE-Research-Group/MetaRadar/releases?q=Release+Build&expanded=true'><img alt='Get it on IzzyOnDroid' src='https://github.com/BLE-Research-Group/MetaRadar/assets/18288554/b1cb44a9-3fd4-4f83-8700-485c10b090ba' width='200'/></a>
+<a href='https://f-droid.org/en/packages/f.cking.software/'><img alt='Get it on F-Droid' src='https://github.com/BLE-Research-Group/MetaRadar/assets/18288554/c03a0cf2-b39a-4344-adb8-d4cde7ce4b61' width='200'/></a>
+<a href='https://android.izzysoft.de/repo/apk/f.cking.software'><img alt='Get it on IzzyOnDroid' src='https://github.com/BLE-Research-Group/MetaRadar/assets/18288554/c0c85c9f-edc8-4fc7-97b1-bda925bf0833' width='200'/></a>
+
+> [!WARNING]
+> 本项目**仅用于教育、安全研究和个人调查目的**。**作者不认可或鼓励将本软件用于任何非法或不道德的活动**。您**需自行负责**确保使用本工具时遵守所有适用的法律法规。
+
+低功耗蓝牙（BLE）是一种广泛使用的无线协议，为您周围的各种设备提供支持——从耳机、智能手表、健身追踪器到 AirTag、物联网设备、游戏控制器，甚至现代情趣用品。BLE 设备通过广播小型数据包进行通信，其中可能包含设备标识符、元数据和其他连接所需的信息。
+
+这些广播虽然对设备功能至关重要，但也可能被用来追踪您的存在和行动。例如，一副廉价的无线耳机可能会公开暴露一个持久标识符。任何在附近监听 BLE 数据包的人——无论是政府、公司还是恶意行为者——都可能在未经您同意的情况下利用这些信息追踪您。
+
+幸运的是，许多现代设备在 BLE 中实现了隐私功能以防止追踪，例如随机化地址和有限广播。BLE Radar 帮助您区分保护您隐私的设备和可能被追踪的设备。通过分析您周围的 BLE 流量，应用让您了解哪些设备可以安全使用。
+
+除了分析之外，BLE Radar 还可以实时保护您。当可疑设备在附近或某台设备随您移动一段时间时，应用可以提醒您，让您对潜在的跟踪或不必要的追踪获得早期预警。您可以根据设备标识符、类型或行为配置提醒，以满足您的安全需求。
+
+开发这个应用的目标是让您能够了解和控制环境中的 BLE 设备。了解哪些设备正在广播可追踪信息、哪些注重隐私，能让您对日常使用、佩戴和交互的设备做出明智的决定。
+
+应用主要功能：
+* 扫描、分析和跟踪周围的蓝牙设备；
+* 为雷达创建灵活的筛选条件；
+* 对扫描到的 BLE 设备进行深度分析，从可用的 GATT 服务获取数据；
+* GATT 服务浏览器；
+* 通过元数据识别设备类型；
+* 估算到设备的大致距离。
+
+本应用不会共享您的个人数据或地理位置，所有工作均在离线状态下完成。
+
+<img src='/metadata/en-US/images/phoneScreenshots/Screenshot_2.png' width='200'/> <img src='/metadata/en-US/images/phoneScreenshots/Screenshot_4.png' width='200'/> <img src='/metadata/en-US/images/phoneScreenshots/Screenshot_5.png' width='200'/> <img src='/metadata/en-US/images/phoneScreenshots/Screenshot_7.png' width='200'/>

app/src/main/java/f/cking/software/data/repo/SettingsRepository.kt

@@ -139,6 +139,14 @@ class SettingsRepository(
         sharedPreferences.edit { putBoolean(KEY_WAKE_UP_SCREEN_WHILE_SCANNING, value) }
     }
 
+    fun setAppLanguage(languageTag: String) {
+        sharedPreferences.edit { putString(KEY_APP_LANGUAGE, languageTag) }
+    }
+
+    fun getAppLanguage(): String {
+        return sharedPreferences.getString(KEY_APP_LANGUAGE, DEFAULT_APP_LANGUAGE) ?: DEFAULT_APP_LANGUAGE
+    }
+
     companion object {
         private const val KEY_GARBAGING_TIME = "key_garbaging_time"
         private const val KEY_USE_GPS_ONLY = "key_use_gps_location_only"
@@ -154,6 +162,9 @@ class SettingsRepository(
         private const val KEY_DISCLAIMER_WAS_ACCEPTED = "key_disclaimer_was_accepted"
         private const val KEY_WHAT_IS_THIS_APP_FOR_WAS_SHOWN = "what_is_this_app_for_was_shown"
         private const val KEY_WAKE_UP_SCREEN_WHILE_SCANNING = "key_wake_up_screen_while_scanning"
+        private const val KEY_APP_LANGUAGE = "key_app_language"
+
+        const val DEFAULT_APP_LANGUAGE = "system"
 
         const val NO_APP_LAUNCH_TIME = -1L
         const val NO_ENJOY_THE_APP_STARTING_POINT = -1L

app/src/main/java/f/cking/software/ui/settings/SettingsScreen.kt

@@ -3,8 +3,10 @@ package f.cking.software.ui.settings
 import android.text.format.Formatter
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
@@ -32,6 +34,7 @@ import androidx.compose.ui.unit.sp
 import com.vanpra.composematerialdialogs.rememberMaterialDialogState
 import f.cking.software.BuildConfig
 import f.cking.software.R
+import f.cking.software.data.repo.SettingsRepository
 import f.cking.software.dateTimeStringFormat
 import f.cking.software.utils.graphic.BottomNavigationSpacer
 import f.cking.software.utils.graphic.FABSpacer
@@ -330,6 +333,82 @@ object SettingsScreen {
                     viewModel.toggleWakeUpOnScreen()
                 }
             )
+            LanguageSelector(viewModel = viewModel)
+        }
+    }
+
+    @Composable
+    private fun LanguageSelector(viewModel: SettingsViewModel) {
+        val dialogState = rememberMaterialDialogState()
+        val currentLanguageName = when (viewModel.appLanguage) {
+            "en" -> stringResource(R.string.language_english)
+            "zh-rCN" -> stringResource(R.string.language_chinese)
+            "hu" -> stringResource(R.string.language_hungarian)
+            "ru" -> stringResource(R.string.language_russian)
+            else -> stringResource(R.string.language_system)
+        }
+
+        ThemedDialog(
+            dialogState = dialogState,
+            buttons = {
+                negativeButton(
+                    text = stringResource(R.string.cancel),
+                    textStyle = TextStyle(color = MaterialTheme.colorScheme.onSurface)
+                ) { dialogState.hide() }
+            },
+        ) {
+            Column(Modifier.padding(16.dp)) {
+                Text(text = stringResource(R.string.language_dialog_title), fontSize = 18.sp, fontWeight = FontWeight.Bold)
+                Spacer(modifier = Modifier.height(8.dp))
+                LanguageOption(textRes = R.string.language_system) {
+                    viewModel.onLanguageSelected(SettingsRepository.DEFAULT_APP_LANGUAGE)
+                    dialogState.hide()
+                }
+                LanguageOption(textRes = R.string.language_english) {
+                    viewModel.onLanguageSelected("en")
+                    dialogState.hide()
+                }
+                LanguageOption(textRes = R.string.language_chinese) {
+                    viewModel.onLanguageSelected("zh-rCN")
+                    dialogState.hide()
+                }
+                LanguageOption(textRes = R.string.language_hungarian) {
+                    viewModel.onLanguageSelected("hu")
+                    dialogState.hide()
+                }
+                LanguageOption(textRes = R.string.language_russian) {
+                    viewModel.onLanguageSelected("ru")
+                    dialogState.hide()
+                }
+            }
+        }
+
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .clickable { dialogState.show() }
+                .padding(horizontal = 16.dp, vertical = 8.dp),
+            verticalAlignment = Alignment.CenterVertically,
+        ) {
+            Column(
+                modifier = Modifier.weight(1f),
+            ) {
+                Text(text = stringResource(R.string.language))
+                Spacer(modifier = Modifier.height(4.dp))
+                Text(text = currentLanguageName, fontWeight = FontWeight.Light, fontSize = 12.sp)
+            }
+        }
+    }
+
+    @Composable
+    private fun LanguageOption(textRes: Int, onClick: () -> Unit) {
+        Box(
+            modifier = Modifier
+                .fillMaxWidth()
+                .clickable { onClick.invoke() }
+                .padding(vertical = 8.dp)
+        ) {
+            Text(text = stringResource(textRes))
         }
     }
 

app/src/main/java/f/cking/software/ui/settings/SettingsViewModel.kt

@@ -4,9 +4,11 @@ import android.app.Application
 import android.net.Uri
 import android.provider.Settings
 import android.widget.Toast
+import androidx.appcompat.app.AppCompatDelegate
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
+import androidx.core.os.LocaleListCompat
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import f.cking.software.BuildConfig
@@ -57,6 +59,7 @@ class SettingsViewModel(
     var wakeUpWhileScanning: Boolean by mutableStateOf(settingsRepository.getWakeUpScreenWhileScanning())
     var silentModeEnabled: Boolean by mutableStateOf(settingsRepository.getSilentMode())
     var deepAnalysisEnabled: Boolean by mutableStateOf(settingsRepository.getEnableDeepAnalysis())
+    var appLanguage: String by mutableStateOf(settingsRepository.getAppLanguage())
 
     val databaseInfo by getDatabaseInfoInteractor.execute().collectAsState(viewModelScope, null)
 
@@ -162,6 +165,17 @@ class SettingsViewModel(
         settingsRepository.setSilentMode(!settingsRepository.getSilentMode())
     }
 
+    fun onLanguageSelected(languageTag: String) {
+        settingsRepository.setAppLanguage(languageTag)
+        appLanguage = languageTag
+        val localeList = if (languageTag == SettingsRepository.DEFAULT_APP_LANGUAGE) {
+            LocaleListCompat.getEmptyLocaleList()
+        } else {
+            LocaleListCompat.forLanguageTags(languageTag)
+        }
+        AppCompatDelegate.setApplicationLocales(localeList)
+    }
+
     fun onReportIssueClick() {
         intentHelper.openUrl(BuildConfig.REPORT_ISSUE_URL)
     }

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

@@ -169,4 +169,11 @@
     <string name="turn_on">Bekapcsolás</string>
     <string name="unknown_capital_case">ISMERETLEN</string>
     <string name="lifetime_data_last_update">örök: %1$s | legutóbbi frissítés: %2$s ideje</string>
+    <string name="language">Nyelv</string>
+    <string name="language_dialog_title">Alkalmazás nyelve</string>
+    <string name="language_system">Rendszer szerint</string>
+    <string name="language_english">English</string>
+    <string name="language_chinese">中文</string>
+    <string name="language_hungarian">Magyar</string>
+    <string name="language_russian">Русский</string>
 </resources>

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

@@ -83,6 +83,13 @@
     <string name="silent_mode_subtitle">Выключить любую сетевую коммуникацию от приложения. Может быть полезно чтобы экономить трафик или оставаться незаметным в сети.</string>
     <string name="database_actions">Управление базой данных</string>
     <string name="app_settings_title">Настройки</string>
+    <string name="language">Язык</string>
+    <string name="language_dialog_title">Язык приложения</string>
+    <string name="language_system">Как в системе</string>
+    <string name="language_english">English</string>
+    <string name="language_chinese">中文</string>
+    <string name="language_hungarian">Magyar</string>
+    <string name="language_russian">Русский</string>
     <string name="silent_mode_is_off_toast">Оффлайн режим выключен. Вы можете включить его в настройках.</string>
     <string name="select_manufacturer">Поиск производителя</string>