dm-157
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parent
cfce2b3045
commit
079461aa88
2 changed files with 61 additions and 16 deletions
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@ -46,6 +46,10 @@ import coil.compose.AsyncImage // 建議使用 Coil 來載入本地圖片 Uri，
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import android.Manifest
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import androidx.compose.foundation.layout.Column
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import androidx.compose.material.icons.filled.Add
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import androidx.compose.runtime.LaunchedEffect
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import androidx.compose.runtime.mutableStateListOf
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import androidx.compose.runtime.mutableStateOf
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import androidx.compose.runtime.setValue
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@Composable
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fun MessageAttachmentBar(
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@ -54,7 +58,13 @@ fun MessageAttachmentBar(
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) {
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val context = LocalContext.current
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val isPartialAccess by remember {
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val localImages = remember { mutableStateListOf<Uri>() }
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// 🎯 2. 用於手動觸發刷新的計數器（主要應對 Android 14+ 管理照片回來後的即時刷新）
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var refreshTrigger by remember { mutableStateOf(0) }
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// 檢查目前是不是處於「部分照片允許」的狀態 (Android 14+)
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val isPartialAccess by remember(refreshTrigger) {
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derivedStateOf {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
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ContextCompat.checkSelfPermission(context, Manifest.permission.READ_MEDIA_VISUAL_USER_SELECTED) == PackageManager.PERMISSION_GRANTED &&
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@ -65,24 +75,25 @@ fun MessageAttachmentBar(
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}
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}
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// 處理 Android 14 重新調整選取照片的 Launcher
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// 處理 Android 14 重新調整選取照片的回呼
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val permissionLauncher = rememberLauncherForActivityResult(
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contract = ActivityResultContracts.RequestPermission()
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) { _ ->
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// 重新讀取或觸發相簿狀態更新（這裡會觸發 localImages 重新 query）
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// 使用者調整完照片回來，變更計數器觸發 LaunchedEffect 重新查詢
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refreshTrigger++
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}
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// 💡 非同步讀取手機內最新的數張圖片 Uri
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val localImages by remember {
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derivedStateOf {
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// 🎯 3. 核心修正：利用 LaunchedEffect 監聽生命週期與刷新狀態
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// 當元件首次載入、或者 refreshTrigger 改變時，會重跑裡面的非同步查詢
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LaunchedEffect(refreshTrigger) {
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val imageUris = mutableListOf<Uri>()
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val projection = arrayOf(
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MediaStore.Images.Media._ID,
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MediaStore.Images.Media.DATE_TAKEN
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)
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// 依時間倒序排序，讓最新的照片排在最前面
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val sortOrder = "${MediaStore.Images.Media.DATE_TAKEN} DESC"
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try {
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context.contentResolver.query(
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MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
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projection,
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@ -91,7 +102,6 @@ fun MessageAttachmentBar(
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sortOrder
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)?.use { cursor ->
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val idColumn = cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID)
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// 這裡限制讀取前 20 張，避免一次載入太多有效能隱憂
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var count = 0
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while (cursor.moveToNext() && count < 20) {
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val id = cursor.getLong(idColumn)
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@ -103,7 +113,12 @@ fun MessageAttachmentBar(
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count++
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}
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}
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imageUris
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// 查詢成功後安全地更新 UI 狀態
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localImages.clear()
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localImages.addAll(imageUris)
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} catch (e: SecurityException) {
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// 如果此時完全沒權限，捕獲異常不崩潰，保持列表為空
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localImages.clear()
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}
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}
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@ -1,6 +1,9 @@
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package com.example.login_v3.home.Message.UI.Detail
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import android.Manifest
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import android.content.pm.PackageManager
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import android.net.Uri
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import android.os.Build
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import android.widget.Toast
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import androidx.activity.compose.rememberLauncherForActivityResult
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import androidx.activity.result.contract.ActivityResultContracts
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@ -80,6 +83,7 @@ import androidx.compose.foundation.shape.CircleShape
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import androidx.compose.material.icons.filled.Call
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import androidx.compose.material.icons.filled.MoreVert
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import androidx.compose.material.icons.filled.PlayArrow
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import androidx.core.content.ContextCompat
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import coil.ImageLoader
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import coil.compose.LocalImageLoader
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import coil.decode.GifDecoder
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@ -177,6 +181,24 @@ fun MessageMessaging(
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}
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}
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//media permision required
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val mainPermissionLauncher = rememberLauncherForActivityResult(
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contract = ActivityResultContracts.RequestPermission()
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) { isGranted ->
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if (isGranted) {
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// 關鍵：只有當使用者真的按下了「允許」，才在 Callback 裡開啟附件面板！
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localBottomBarState = BottomBarState.AttachmentMenu
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} else {
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Toast.makeText(context, "需要相簿權限才能預覽照片喔！", Toast.LENGTH_SHORT).show()
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}
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}
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val requiredPermission = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
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Manifest.permission.READ_MEDIA_IMAGES // 🎯 Android 13+ 必須是這個
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} else {
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Manifest.permission.READ_EXTERNAL_STORAGE // Android 12 以下是這個
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}
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val deleteState by viewModel.deleteMessageState.collectAsState()
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LaunchedEffect(deleteState) {
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@ -374,7 +396,15 @@ fun MessageMessaging(
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onSendClick = { content -> viewModel.sendMessage(roomId, content) },
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// 🎯 改為直接修改本地狀態，切換至附件選單
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onAttachmentClick = {
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val hasPermission = ContextCompat.checkSelfPermission(context, requiredPermission) == PackageManager.PERMISSION_GRANTED
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if (hasPermission) {
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// 已經有權限了，直接大方開啟
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localBottomBarState = BottomBarState.AttachmentMenu
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} else {
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// 沒權限，只管叫起權限請求視窗，千萬不要在這裡改 localBottomBarState！
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mainPermissionLauncher.launch(requiredPermission)
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}
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}
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)
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}
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