修正编辑弹窗无法打开的问题

app/src/main/java/cn/airnan/a2fair/core/OtpUriBuilder.kt

@@ -0,0 +1,46 @@
+package cn.airnan.a2fair.core
+
+import android.net.Uri
+import cn.airnan.a2fair.data.entity.HashAlgorithm
+import cn.airnan.a2fair.data.entity.Token
+import cn.airnan.a2fair.data.entity.TokenType
+
+object OtpUriBuilder {
+
+    fun build(token: Token): String {
+        val type = when (token.tokenType) {
+            TokenType.TOTP -> "totp"
+            TokenType.HOTP -> "hotp"
+            TokenType.STEAM -> "totp"
+        }
+
+        val label = if (token.issuer.isNotBlank()) {
+            "${Uri.encode(token.issuer)}:${Uri.encode(token.serviceName)}"
+        } else {
+            Uri.encode(token.serviceName)
+        }
+
+        val uri = Uri.Builder()
+            .scheme("otpauth")
+            .authority(type)
+            .path("/$label")
+            .appendQueryParameter("secret", token.secret.value)
+            .appendQueryParameter("digits", token.digits.toString())
+            .appendQueryParameter("period", token.period.toString())
+
+        if (token.issuer.isNotBlank()) {
+            uri.appendQueryParameter("issuer", token.issuer)
+        }
+
+        when (token.algorithm) {
+            HashAlgorithm.SHA1 -> { /* default */ }
+            else -> uri.appendQueryParameter("algorithm", token.algorithm.name)
+        }
+
+        if (token.tokenType == TokenType.HOTP) {
+            uri.appendQueryParameter("counter", token.counter.toString())
+        }
+
+        return uri.build().toString()
+    }
+}

app/src/main/java/cn/airnan/a2fair/ui/tokens/AddTokenBottomSheet.kt

@@ -32,6 +32,7 @@ import androidx.compose.ui.viewinterop.AndroidView
 import androidx.compose.ui.window.Dialog
 import androidx.compose.ui.window.DialogProperties
 import androidx.core.content.ContextCompat
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import cn.airnan.a2fair.R
 import cn.airnan.a2fair.data.entity.HashAlgorithm
 import cn.airnan.a2fair.data.entity.TokenType
@@ -52,9 +53,10 @@ fun AddTokenBottomSheet(
     viewModel: TokensViewModel,
     onDismissRequest: () -> Unit
 ) {
-    val state by viewModel.addTokenState.collectAsState()
+    val state by viewModel.addTokenState.collectAsStateWithLifecycle()
+    val isEditing = viewModel.isEditing
     val context = LocalContext.current
-    var showManualEntry by remember { mutableStateOf(false) }
+    var showManualEntry by remember { mutableStateOf(isEditing) }
     var showCameraScanner by remember { mutableStateOf(false) }
 
     val photoPickerLauncher = rememberLauncherForActivityResult(
@@ -113,7 +115,11 @@ fun AddTokenBottomSheet(
             horizontalAlignment = Alignment.CenterHorizontally
         ) {
             Text(
-                text = if (showManualEntry) stringResource(R.string.enter_details_manually) else stringResource(R.string.add_token_title),
+                text = when {
+                    isEditing -> stringResource(R.string.edit_token)
+                    showManualEntry -> stringResource(R.string.enter_details_manually)
+                    else -> stringResource(R.string.add_token_title)
+                },
                 style = MaterialTheme.typography.titleLarge,
                 modifier = Modifier.padding(bottom = 16.dp)
             )
@@ -155,7 +161,12 @@ fun AddTokenBottomSheet(
                 ManualEntryForm(
                     state = state,
                     viewModel = viewModel,
-                    onCancel = { showManualEntry = false }
+                    onCancel = if (isEditing) {
+                        { viewModel.resetAddState(); onDismissRequest() }
+                    } else {
+                        { showManualEntry = false }
+                    },
+                    isEditing = isEditing
                 )
             }
         }
@@ -177,7 +188,8 @@ fun AddTokenBottomSheet(
 fun ManualEntryForm(
     state: AddTokenUiState,
     viewModel: TokensViewModel,
-    onCancel: () -> Unit
+    onCancel: () -> Unit,
+    isEditing: Boolean = false
 ) {
     OutlinedTextField(
         value = state.accountName,
@@ -339,11 +351,17 @@ fun ManualEntryForm(
         }
         Spacer(modifier = Modifier.width(8.dp))
         if (!state.isDuplicate) {
+            if (isEditing) {
+                Button(onClick = viewModel::updateToken) {
+                    Text(stringResource(R.string.save))
+                }
+            } else {
                 Button(onClick = viewModel::addTokenManually) {
                     Text(stringResource(R.string.add))
                 }
             }
         }
+    }
 }
 
 @Composable

app/src/main/java/cn/airnan/a2fair/ui/tokens/TokenDetailSheet.kt

@@ -0,0 +1,269 @@
+package cn.airnan.a2fair.ui.tokens
+
+import android.content.ClipData
+import android.content.ClipboardManager
+import android.content.Context
+import android.graphics.Bitmap
+import android.widget.Toast
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.text.input.VisualTransformation
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import cn.airnan.a2fair.R
+import cn.airnan.a2fair.core.OtpUriBuilder
+import cn.airnan.a2fair.data.entity.Token
+import cn.airnan.a2fair.data.entity.TokenType
+import com.google.zxing.BarcodeFormat
+import com.google.zxing.EncodeHintType
+import com.google.zxing.qrcode.QRCodeWriter
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel
+import java.util.EnumMap
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun TokenDetailSheet(
+    token: Token,
+    onDismiss: () -> Unit,
+    onEdit: () -> Unit,
+    onDelete: () -> Unit
+) {
+    val context = LocalContext.current
+    var showDeleteConfirm by remember { mutableStateOf(false) }
+    var showQrCode by remember { mutableStateOf(false) }
+    var secretVisible by remember { mutableStateOf(false) }
+
+    val secretCopiedText = stringResource(R.string.secret_copied)
+
+    ModalBottomSheet(onDismissRequest = onDismiss) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 16.dp)
+                .padding(bottom = 32.dp)
+                .verticalScroll(rememberScrollState())
+        ) {
+            // Header
+            Text(
+                text = token.serviceName,
+                style = MaterialTheme.typography.headlineSmall,
+                fontWeight = FontWeight.Bold
+            )
+            if (token.issuer.isNotBlank()) {
+                Text(
+                    text = token.issuer,
+                    style = MaterialTheme.typography.bodyLarge,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+
+            Spacer(modifier = Modifier.height(20.dp))
+
+            // Info row
+            InfoRow(label = stringResource(R.string.type_label), value = token.tokenType.name)
+            InfoRow(label = stringResource(R.string.algorithm_label), value = token.algorithm.name)
+            InfoRow(label = stringResource(R.string.digits_label), value = token.digits.toString())
+            if (token.tokenType == TokenType.HOTP) {
+                InfoRow(label = stringResource(R.string.counter_label), value = token.counter.toString())
+            } else {
+                InfoRow(label = stringResource(R.string.period_label), value = "${token.period}s")
+            }
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            // Secret field
+            Text(
+                text = stringResource(R.string.secret_key),
+                style = MaterialTheme.typography.labelMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+            Spacer(modifier = Modifier.height(4.dp))
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                OutlinedTextField(
+                    value = token.secret.value,
+                    onValueChange = {},
+                    readOnly = true,
+                    modifier = Modifier.weight(1f),
+                    visualTransformation = if (secretVisible) VisualTransformation.None else PasswordVisualTransformation(),
+                    singleLine = true,
+                    textStyle = MaterialTheme.typography.bodyMedium
+                )
+                Spacer(modifier = Modifier.width(4.dp))
+                IconButton(onClick = { secretVisible = !secretVisible }) {
+                    Icon(
+                        imageVector = if (secretVisible) Icons.Default.VisibilityOff else Icons.Default.Visibility,
+                        contentDescription = if (secretVisible) stringResource(R.string.hide_secret) else stringResource(R.string.show_secret)
+                    )
+                }
+                IconButton(onClick = {
+                    val clipboard = context.getSystemService(Context.CLIPBOARD_SERVICE) as ClipboardManager
+                    clipboard.setPrimaryClip(ClipData.newPlainText("Secret", token.secret.value))
+                    Toast.makeText(context, secretCopiedText, Toast.LENGTH_SHORT).show()
+                }) {
+                    Icon(Icons.Default.ContentCopy, contentDescription = stringResource(R.string.copy_secret))
+                }
+                IconButton(onClick = { showQrCode = true }) {
+                    Icon(Icons.Default.QrCode, contentDescription = stringResource(R.string.show_qr_code))
+                }
+            }
+
+            Spacer(modifier = Modifier.height(24.dp))
+
+            // Edit button
+            OutlinedButton(
+                onClick = {
+                    onDismiss()
+                    onEdit()
+                },
+                modifier = Modifier.fillMaxWidth()
+            ) {
+                Icon(Icons.Default.Edit, contentDescription = null)
+                Spacer(modifier = Modifier.width(8.dp))
+                Text(stringResource(R.string.edit))
+            }
+
+            Spacer(modifier = Modifier.height(8.dp))
+
+            // Delete button
+            OutlinedButton(
+                onClick = { showDeleteConfirm = true },
+                modifier = Modifier.fillMaxWidth(),
+                colors = ButtonDefaults.outlinedButtonColors(
+                    contentColor = MaterialTheme.colorScheme.error
+                )
+            ) {
+                Icon(Icons.Default.Delete, contentDescription = null)
+                Spacer(modifier = Modifier.width(8.dp))
+                Text(stringResource(R.string.delete))
+            }
+        }
+    }
+
+    // Delete confirmation dialog
+    if (showDeleteConfirm) {
+        AlertDialog(
+            onDismissRequest = { showDeleteConfirm = false },
+            title = { Text(stringResource(R.string.confirm_delete)) },
+            text = { Text(stringResource(R.string.confirm_delete_message, token.serviceName)) },
+            confirmButton = {
+                TextButton(
+                    onClick = {
+                        showDeleteConfirm = false
+                        onDismiss()
+                        onDelete()
+                    },
+                    colors = ButtonDefaults.textButtonColors(contentColor = MaterialTheme.colorScheme.error)
+                ) {
+                    Text(stringResource(R.string.delete))
+                }
+            },
+            dismissButton = {
+                TextButton(onClick = { showDeleteConfirm = false }) {
+                    Text(stringResource(R.string.cancel))
+                }
+            }
+        )
+    }
+
+    // QR Code dialog
+    if (showQrCode) {
+        val uriString = remember(token) { OtpUriBuilder.build(token) }
+        val qrBitmap = remember(uriString) { generateQrCode(uriString, 512) }
+
+        Dialog(
+            onDismissRequest = { showQrCode = false },
+            properties = DialogProperties(usePlatformDefaultWidth = false)
+        ) {
+            Card(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .padding(24.dp),
+                shape = MaterialTheme.shapes.large
+            ) {
+                Column(
+                    modifier = Modifier.padding(24.dp),
+                    horizontalAlignment = Alignment.CenterHorizontally
+                ) {
+                    Text(
+                        text = stringResource(R.string.qr_code),
+                        style = MaterialTheme.typography.titleMedium,
+                        fontWeight = FontWeight.Bold
+                    )
+                    Spacer(modifier = Modifier.height(16.dp))
+                    qrBitmap?.let { bmp ->
+                        Image(
+                            bitmap = bmp.asImageBitmap(),
+                            contentDescription = "QR Code",
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .aspectRatio(1f)
+                        )
+                    }
+                    Spacer(modifier = Modifier.height(16.dp))
+                    TextButton(onClick = { showQrCode = false }) {
+                        Text(stringResource(R.string.close))
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun InfoRow(label: String, value: String) {
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(vertical = 4.dp),
+        horizontalArrangement = Arrangement.SpaceBetween
+    ) {
+        Text(
+            text = label,
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant
+        )
+        Text(
+            text = value,
+            style = MaterialTheme.typography.bodyMedium,
+            fontWeight = FontWeight.Medium
+        )
+    }
+}
+
+private fun generateQrCode(content: String, size: Int): Bitmap? {
+    return try {
+        val hints = EnumMap<EncodeHintType, Any>(EncodeHintType::class.java).apply {
+            this[EncodeHintType.ERROR_CORRECTION] = ErrorCorrectionLevel.M
+            this[EncodeHintType.MARGIN] = 1
+        }
+        val bitMatrix = QRCodeWriter().encode(content, BarcodeFormat.QR_CODE, size, size, hints)
+        val bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888)
+        for (x in 0 until size) {
+            for (y in 0 until size) {
+                bitmap.setPixel(x, y, if (bitMatrix[x, y]) 0xFF000000.toInt() else 0xFFFFFFFF.toInt())
+            }
+        }
+        bitmap
+    } catch (e: Exception) {
+        e.printStackTrace()
+        null
+    }
+}

app/src/main/java/cn/airnan/a2fair/ui/tokens/TokensScreen.kt

@@ -15,9 +15,6 @@ import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Add
-import androidx.compose.material.icons.filled.ContentCopy
-import androidx.compose.material.icons.filled.Delete
-import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material.icons.filled.ExpandLess
 import androidx.compose.material.icons.filled.ExpandMore
 import androidx.compose.material.icons.filled.Refresh
@@ -110,7 +107,11 @@ fun TokensScreen() {
                             TokenCard(
                                 token = token,
                                 onIncrement = { viewModel.incrementCounter(token) },
-                                onDelete = { viewModel.deleteToken(token) }
+                                onDelete = { viewModel.deleteToken(token) },
+                                onEdit = {
+                                    viewModel.startEditToken(token)
+                                    showAddBottomSheet = true
+                                }
                             )
                         }
                     }
@@ -159,14 +160,15 @@ fun GroupHeader(
 fun TokenCard(
     token: Token,
     onIncrement: () -> Unit,
-    onDelete: () -> Unit
+    onDelete: () -> Unit,
+    onEdit: () -> Unit
 ) {
     val otpPlaceholder = stringResource(R.string.otp_placeholder)
     val errorText = stringResource(R.string.error)
     var currentCode by remember { mutableStateOf(otpPlaceholder) }
     var progress by remember { mutableStateOf(1f) }
     var remainingSeconds by remember { mutableStateOf(0) }
-    var showMenu by remember { mutableStateOf(false) }
+    var showDetailSheet by remember { mutableStateOf(false) }
     val context = LocalContext.current
 
     val secretBytes = remember(token.secret.value) {
@@ -232,7 +234,7 @@ fun TokenCard(
                 onClick = {
                     copyToClipboard(context, currentCode, token.serviceName)
                 },
-                onLongClick = { showMenu = true }
+                onLongClick = { showDetailSheet = true }
             ),
         elevation = CardDefaults.cardElevation(defaultElevation = 2.dp)
     ) {
@@ -298,32 +300,18 @@ fun TokenCard(
                 }
             }
 
-            DropdownMenu(
-                expanded = showMenu,
-                onDismissRequest = { showMenu = false }
-            ) {
-                DropdownMenuItem(
-                    text = { Text(stringResource(R.string.copy_code)) },
-                    onClick = {
-                        showMenu = false
-                        copyToClipboard(context, currentCode, token.serviceName)
+            if (showDetailSheet) {
+                TokenDetailSheet(
+                    token = token,
+                    onDismiss = { showDetailSheet = false },
+                    onEdit = {
+                        showDetailSheet = false
+                        onEdit()
                     },
-                    leadingIcon = { Icon(Icons.Default.ContentCopy, contentDescription = null) }
-                )
-                DropdownMenuItem(
-                    text = { Text(stringResource(R.string.edit)) },
-                    onClick = {
-                        showMenu = false
-                    },
-                    leadingIcon = { Icon(Icons.Default.Edit, contentDescription = null) }
-                )
-                DropdownMenuItem(
-                    text = { Text(stringResource(R.string.delete)) },
-                    onClick = {
-                        showMenu = false
+                    onDelete = {
+                        showDetailSheet = false
                         onDelete()
-                    },
-                    leadingIcon = { Icon(Icons.Default.Delete, contentDescription = null) }
+                    }
                 )
             }
         }

app/src/main/java/cn/airnan/a2fair/ui/tokens/TokensViewModel.kt

@@ -121,6 +121,8 @@ class TokensViewModel(
     private val _addTokenState = MutableStateFlow(AddTokenUiState())
     val addTokenState: StateFlow<AddTokenUiState> = _addTokenState.asStateFlow()
     private var pendingToken: Token? = null
+    private var editingTokenId: Long? = null
+    val isEditing: Boolean get() = editingTokenId != null
 
     fun updateIssuer(issuer: String) {
         _addTokenState.update { it.copy(issuer = issuer) }
@@ -157,6 +159,53 @@ class TokensViewModel(
 
     fun resetAddState() {
         _addTokenState.value = AddTokenUiState()
+        editingTokenId = null
+        pendingToken = null
+    }
+
+    fun startEditToken(token: Token) {
+        editingTokenId = token.id
+        _addTokenState.value = AddTokenUiState(
+            issuer = token.issuer,
+            accountName = token.serviceName,
+            secret = token.secret.value,
+            tokenType = token.tokenType,
+            algorithm = token.algorithm,
+            digits = token.digits,
+            period = token.period,
+            counter = token.counter
+        )
+    }
+
+    fun updateToken() {
+        val state = _addTokenState.value
+        val id = editingTokenId ?: return
+        if (state.secret.isBlank() || state.accountName.isBlank()) {
+            _addTokenState.update { it.copy(isError = true, errorMessage = getApplication<Application>().getString(R.string.secret_and_account_required)) }
+            return
+        }
+        viewModelScope.launch {
+            try {
+                val token = tokenRepository.getTokenById(id)
+                if (token != null) {
+                    val updated = token.copy(
+                        issuer = state.issuer,
+                        serviceName = state.accountName,
+                        secret = SecretString(state.secret),
+                        tokenType = state.tokenType,
+                        algorithm = state.algorithm,
+                        digits = state.digits,
+                        period = state.period,
+                        counter = state.counter
+                    )
+                    tokenRepository.updateToken(updated)
+                }
+                resetAddState()
+                _addTokenState.update { it.copy(isSuccess = true) }
+            } catch (e: Exception) {
+                _addTokenState.update { it.copy(isError = true, errorMessage = e.message) }
+            }
+        }
     }
 
     fun addTokenFromUri(uriString: String) {

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

@@ -36,6 +36,17 @@
     <string name="period_label">周期</string>
     <string name="cancel">取消</string>
     <string name="add">添加</string>
+    <string name="save">保存</string>
+    <string name="edit_token">编辑口令</string>
+    <string name="secret_key">密钥</string>
+    <string name="show_secret">显示密钥</string>
+    <string name="hide_secret">隐藏密钥</string>
+    <string name="copy_secret">复制密钥</string>
+    <string name="secret_copied">密钥已复制</string>
+    <string name="show_qr_code">显示二维码</string>
+    <string name="qr_code">二维码</string>
+    <string name="confirm_delete">确认删除</string>
+    <string name="confirm_delete_message">永久删除 \"%s\"？此操作不可撤销。</string>
     <string name="close">关闭</string>
     <string name="unknown_error">未知错误</string>
     <string name="failed_parse_qr">解析二维码失败：%s</string>

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

@@ -36,6 +36,17 @@
     <string name="period_label">週期</string>
     <string name="cancel">取消</string>
     <string name="add">新增</string>
+    <string name="save">儲存</string>
+    <string name="edit_token">編輯權杖</string>
+    <string name="secret_key">金鑰</string>
+    <string name="show_secret">顯示金鑰</string>
+    <string name="hide_secret">隱藏金鑰</string>
+    <string name="copy_secret">複製金鑰</string>
+    <string name="secret_copied">金鑰已複製</string>
+    <string name="show_qr_code">顯示 QR 碼</string>
+    <string name="qr_code">QR 碼</string>
+    <string name="confirm_delete">確認刪除</string>
+    <string name="confirm_delete_message">永久刪除 \"%s\"？此操作無法復原。</string>
     <string name="close">關閉</string>
     <string name="unknown_error">未知錯誤</string>
     <string name="failed_parse_qr">解析 QR 碼失敗：%s</string>

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

@@ -36,6 +36,17 @@
     <string name="period_label">Period</string>
     <string name="cancel">Cancel</string>
     <string name="add">Add</string>
+    <string name="save">Save</string>
+    <string name="edit_token">Edit Token</string>
+    <string name="secret_key">Secret Key</string>
+    <string name="show_secret">Show secret</string>
+    <string name="hide_secret">Hide secret</string>
+    <string name="copy_secret">Copy secret</string>
+    <string name="secret_copied">Secret copied</string>
+    <string name="show_qr_code">Show QR code</string>
+    <string name="qr_code">QR Code</string>
+    <string name="confirm_delete">Confirm Delete</string>
+    <string name="confirm_delete_message">Delete \"%s\" permanently? This cannot be undone.</string>
     <string name="close">Close</string>
     <string name="unknown_error">Unknown error</string>
     <string name="failed_parse_qr">Failed to parse QR code: %s</string>