添加业务逻辑

app/build.gradle.kts

@@ -78,6 +78,8 @@ dependencies {
     debugImplementation(libs.androidx.ui.test.manifest)
     implementation (libs.places)
     implementation(libs.androidx.animation)
+    implementation("io.coil-kt:coil-compose:2.7.0")
+    implementation("io.coil-kt:coil:2.7.0")
 
 
 }

app/src/main/java/com/aiosman/riderpro/data/comment/CommentPagingSource.kt

@@ -0,0 +1,98 @@
+package com.aiosman.riderpro.data.comment
+
+import androidx.paging.PagingSource
+import androidx.paging.PagingState
+import com.aiosman.riderpro.data.ListContainer
+import java.io.IOException
+import kotlin.random.Random
+
+data class Comment(
+    val name: String,
+    val comment: String,
+    val date: String,
+    val likes: Int,
+    val replies: List<Comment>
+)
+
+class CommentPagingSource(
+    private val remoteDataSource: CommentRemoteDataSource,
+) : PagingSource<Int, Comment>() {
+
+    override suspend fun load(params: LoadParams<Int>): LoadResult<Int, Comment> {
+        return try {
+            val currentPage = params.key ?: 1
+            val comments = remoteDataSource.getComments(
+                pageNumber = currentPage
+            )
+
+            LoadResult.Page(
+                data = comments.list,
+                prevKey = if (currentPage == 1) null else currentPage - 1,
+                nextKey = if (comments.list.isEmpty()) null else comments.page + 1
+            )
+        } catch (exception: IOException) {
+            return LoadResult.Error(exception)
+        }
+    }
+
+    override fun getRefreshKey(state: PagingState<Int, Comment>): Int? {
+        return state.anchorPosition
+    }
+
+}
+
+class CommentRemoteDataSource(
+    private val commentService: CommentService,
+) {
+    suspend fun getComments(pageNumber: Int): ListContainer<Comment> {
+        return commentService.getComments(pageNumber)
+    }
+}
+
+interface CommentService {
+    suspend fun getComments(pageNumber: Int): ListContainer<Comment>
+}
+
+class TestCommentServiceImpl : CommentService {
+    private val mockData = generateMockComments(100)
+    override suspend fun getComments(pageNumber: Int): ListContainer<Comment> {
+        val from = pageNumber * DataBatchSize
+        val to = (pageNumber + 1) * DataBatchSize
+        val currentSublist = mockData.subList(from, to)
+        return ListContainer(
+            total = mockData.size,
+            page = pageNumber,
+            pageSize = DataBatchSize,
+            list = currentSublist
+        )
+    }
+
+    private fun generateMockComments(count: Int): List<Comment> {
+        return (0 until count).map {
+            Comment(
+                name = "User $it",
+                comment = "This is comment $it",
+                date = "2023-02-02 11:23",
+                likes = Random.nextInt(0, 100),
+                replies = generateMockReplies()
+            )
+        }
+    }
+
+    private fun generateMockReplies(): List<Comment> {
+        val replyCount = Random.nextInt(0, 6)
+        return (0 until replyCount).map {
+            Comment(
+                name = "Reply User $it",
+                comment = "This is reply $it",
+                date = "2023-02-02 11:23",
+                likes = Random.nextInt(0, 100),
+                replies = emptyList()
+            )
+        }
+    }
+
+    companion object {
+        const val DataBatchSize = 5
+    }
+}

app/src/main/java/com/aiosman/riderpro/data/moment/MomentPagingSource.kt

@@ -1,12 +1,12 @@
 package com.aiosman.riderpro.data.moment
 
-import android.net.http.HttpException
 import androidx.paging.PagingSource
 import androidx.paging.PagingState
 import com.aiosman.riderpro.R
 import com.aiosman.riderpro.data.ListContainer
 import com.aiosman.riderpro.model.MomentItem
 import java.io.IOException
+import kotlin.random.Random
 
 class MomentPagingSource(
     private val remoteDataSource: MomentRemoteDataSource,
@@ -45,9 +45,15 @@ class MomentRemoteDataSource(
 
 interface MomentService {
     suspend fun getMoments(pageNumber: Int): ListContainer<MomentItem>
+    suspend fun getMomentById(id: Int): MomentItem
 }
 
 class TestMomentServiceImpl() : MomentService {
+    var imageList = listOf(
+        "https://img.freepik.com/free-photo/white-billboard-template_23-2147726635.jpg?t=st=1722150015~exp=1722153615~hmac=5540620196d7898215d822be26353c87a63d51bbfb2b814e032626e1948a1583&w=740",
+        "https://img.freepik.com/free-photo/minimal-clothing-label-fashion-brands_53876-111053.jpg?w=1060&t=st=1722150122~exp=1722150722~hmac=67f8a2b6abfe3d08714cf0cc0085485c3221e1ba00dda14378b03753dce39153",
+        "https://img.freepik.com/free-photo/marketing-strategy-planning-strategy-concept_53876-42950.jpg"
+    )
     val mockData = (0..300).toList().mapIndexed { idx, _ ->
         MomentItem(
             id = idx,
@@ -61,13 +67,18 @@ class TestMomentServiceImpl() : MomentService {
             likeCount = 21,
             commentCount = 43,
             shareCount = 33,
-            favoriteCount = 211
+            favoriteCount = 211,
+            images = imageList.shuffled().take(3),
         )
     }
     val testMomentBackend = TestMomentBackend(mockData)
     override suspend fun getMoments(pageNumber: Int): ListContainer<MomentItem> {
         return testMomentBackend.fetchMomentItems(pageNumber)
     }
+
+    override suspend fun getMomentById(id: Int): MomentItem {
+        return mockData[id]
+    }
 }
 
 class TestMomentBackend(

app/src/main/java/com/aiosman/riderpro/model/MomentItem.kt

@@ -15,7 +15,8 @@ data class MomentItem(
     val likeCount: Int,
     val commentCount: Int,
     val shareCount: Int,
-    val favoriteCount: Int
+    val favoriteCount: Int,
+    val images: List<String> = emptyList()
 )
 
 val momentTestItem = MomentItem(

app/src/main/java/com/aiosman/riderpro/ui/comment/CommentModal.kt

@@ -35,13 +35,32 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import androidx.paging.compose.collectAsLazyPagingItems
 import com.aiosman.riderpro.ui.post.CommentsSection
 import com.aiosman.riderpro.R
+import com.aiosman.riderpro.data.comment.Comment
+import com.aiosman.riderpro.data.comment.CommentPagingSource
+import com.aiosman.riderpro.data.comment.CommentRemoteDataSource
+import com.aiosman.riderpro.data.comment.TestCommentServiceImpl
+import com.aiosman.riderpro.model.MomentItem
+import com.aiosman.riderpro.ui.index.tabs.moment.MomentViewModel.momentListPagingSource
+import kotlinx.coroutines.flow.Flow
 
 
 @Preview
 @Composable
 fun CommentModalContent(onDismiss: () -> Unit = {}) {
+    var commentSource = CommentPagingSource(
+        CommentRemoteDataSource(TestCommentServiceImpl())
+    )
+    val commentsFlow: Flow<PagingData<Comment>> = Pager(
+        config = PagingConfig(pageSize = 5, enablePlaceholders = false),
+        pagingSourceFactory = { commentSource }
+    ).flow
+    val comments = commentsFlow.collectAsLazyPagingItems()
     val insets = WindowInsets
     val imePadding = insets.ime.getBottom(density = LocalDensity.current)
     var bottomPadding by remember { mutableStateOf(0.dp) }
@@ -80,7 +99,11 @@ fun CommentModalContent(onDismiss: () -> Unit = {}) {
                 .padding(horizontal = 16.dp)
                 .weight(1f)
         ) {
-            CommentsSection{}
+
+            CommentsSection(lazyPagingItems = comments) {
+
+            }
+
         }
         Box(
             modifier = Modifier
@@ -131,7 +154,6 @@ fun CommentModalContent(onDismiss: () -> Unit = {}) {
         }
 
 
-
     }
 
 }

app/src/main/java/com/aiosman/riderpro/ui/composables/EditCommentBottomModal.kt

@@ -0,0 +1,76 @@
+package com.aiosman.riderpro.ui.composables
+
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.BasicTextField
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import com.aiosman.riderpro.R
+
+@Composable
+fun EditCommentBottomModal() {
+    Box(
+        modifier = Modifier
+            .fillMaxWidth()
+            .background(Color(0xfff7f7f7))
+            .padding(horizontal = 16.dp, vertical = 8.dp)
+
+    ) {
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .align(Alignment.Center),
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            // rounded
+            Box(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .weight(1f)
+                    .clip(RoundedCornerShape(20.dp))
+                    .background(Color(0xffe5e5e5))
+                    .padding(horizontal = 16.dp, vertical = 12.dp)
+
+            ) {
+                BasicTextField(
+                    value = "",
+                    onValueChange = { },
+                    modifier = Modifier
+                        .fillMaxWidth(),
+                    textStyle = TextStyle(
+                        color = Color.Black,
+                        fontWeight = FontWeight.Normal
+                    ),
+                    minLines = 5
+                )
+
+            }
+            Spacer(modifier = Modifier.width(16.dp))
+            Image(
+                painter = painterResource(id = R.drawable.rider_pro_send),
+                contentDescription = "Send",
+                modifier = Modifier
+                    .size(32.dp)
+
+            )
+        }
+
+
+    }
+}

app/src/main/java/com/aiosman/riderpro/ui/index/tabs/moment/Moment.kt

@@ -10,6 +10,7 @@ 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.aspectRatio
 import androidx.compose.foundation.layout.defaultMinSize
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
@@ -36,6 +37,7 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.FontWeight
@@ -43,6 +45,7 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.paging.compose.collectAsLazyPagingItems
+import coil.compose.AsyncImage
 import com.aiosman.riderpro.LocalAnimatedContentScope
 import com.aiosman.riderpro.LocalNavController
 import com.aiosman.riderpro.LocalSharedTransitionScope
@@ -251,34 +254,30 @@ fun MomentTopRowGroup(momentItem: MomentItem) {
 fun MomentContentGroup(
     momentItem: MomentItem,
 ) {
-    val sharedTransitionScope = LocalSharedTransitionScope.current
+//    val sharedTransitionScope = LocalSharedTransitionScope.current
-    val animatedContentScope = LocalAnimatedContentScope.current
+//    val animatedContentScope = LocalAnimatedContentScope.current
-    with(sharedTransitionScope) {
+    val displayImageUrl = momentItem.images.firstOrNull()
     Text(
         text = momentItem.momentTextContent,
         modifier = Modifier
-                .sharedElement(
-                    sharedTransitionScope.rememberSharedContentState(key = "text-${momentItem.id}"),
-                    animatedVisibilityScope = animatedContentScope
-                )
             .fillMaxWidth()
             .padding(top = 22.dp, bottom = 16.dp, start = 24.dp, end = 24.dp),
         fontSize = 16.sp
     )
-        Image(
+    displayImageUrl?.let {
+        AsyncImage(
+            it,
             modifier = Modifier
-                .sharedElement(
+                .fillMaxWidth()
-                    sharedTransitionScope.rememberSharedContentState(key = "image-${momentItem.id}"),
+                .aspectRatio(1f),
-                    animatedVisibilityScope = animatedContentScope
+            contentScale = ContentScale.Crop,
-                )
-                .fillMaxWidth(),
-            painter = painterResource(id = momentItem.momentPicture),
             contentDescription = ""
         )
     }
 
 }
 
+
 @Composable
 fun MomentOperateBtn(@DrawableRes icon: Int, count: String) {
     Row(verticalAlignment = Alignment.CenterVertically) {

app/src/main/java/com/aiosman/riderpro/ui/post/Post.kt

@@ -36,8 +36,10 @@ import androidx.compose.material.icons.filled.Star
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
+import androidx.compose.material3.ModalBottomSheet
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
+import androidx.compose.material3.rememberModalBottomSheetState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -56,36 +58,66 @@ import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.paging.Pager
+import androidx.paging.PagingConfig
+import androidx.paging.PagingData
+import androidx.paging.compose.LazyPagingItems
+import androidx.paging.compose.collectAsLazyPagingItems
+import coil.compose.AsyncImage
 import com.aiosman.riderpro.LocalAnimatedContentScope
+import com.aiosman.riderpro.LocalNavController
 import com.aiosman.riderpro.LocalSharedTransitionScope
 import com.aiosman.riderpro.R
+import com.aiosman.riderpro.data.comment.Comment
+import com.aiosman.riderpro.data.comment.CommentPagingSource
+import com.aiosman.riderpro.data.comment.CommentRemoteDataSource
+import com.aiosman.riderpro.data.comment.TestCommentServiceImpl
+import com.aiosman.riderpro.data.moment.MomentService
+import com.aiosman.riderpro.data.moment.TestMomentServiceImpl
+import com.aiosman.riderpro.model.MomentItem
+import com.aiosman.riderpro.ui.comment.CommentModalContent
 import com.aiosman.riderpro.ui.composables.StatusBarMaskLayout
 import com.aiosman.riderpro.ui.composables.BottomNavigationPlaceholder
+import com.aiosman.riderpro.ui.composables.EditCommentBottomModal
+import com.aiosman.riderpro.ui.modifiers.noRippleClickable
+import com.google.accompanist.systemuicontroller.rememberSystemUiController
+import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.launch
 
-fun makeMockImages(): List<PostImage> {
-    return listOf(
-        PostImage(R.drawable.default_moment_img, "Image 1"),
-        PostImage(R.drawable.default_avatar, "Image 2"),
-        PostImage(R.drawable.rider_pro_moment_demo_1, "Image 3")
-    )
-}
-
 
 @OptIn(ExperimentalSharedTransitionApi::class)
 @Composable
 fun PostScreen(
     id: String,
 ) {
+    var service: MomentService = TestMomentServiceImpl()
+
+    var commentSource = CommentPagingSource(
+        CommentRemoteDataSource(TestCommentServiceImpl())
+    )
+    val commentsFlow: Flow<PagingData<Comment>> = Pager(
+        config = PagingConfig(pageSize = 5, enablePlaceholders = false),
+        pagingSourceFactory = { commentSource }
+    ).flow
+    val lazyPagingItems = commentsFlow.collectAsLazyPagingItems()
     var showCollapseContent by remember { mutableStateOf(true) }
     val scrollState = rememberLazyListState()
+    val uiController = rememberSystemUiController()
+    var moment by remember { mutableStateOf<MomentItem?>(null) }
+    LaunchedEffect(Unit) {
+        uiController.setNavigationBarColor(Color.White)
+        moment = service.getMomentById(id.toInt())
+    }
     StatusBarMaskLayout {
         Scaffold(
             modifier = Modifier.fillMaxSize(),
             bottomBar = { BottomNavigationBar() }
         ) {
             it
-            Column(modifier = Modifier.fillMaxSize()) {
+            Column(
+                modifier = Modifier
+                    .fillMaxSize()
+            ) {
                 Header()
                 Column(modifier = Modifier.animateContentSize()) {
                     AnimatedVisibility(visible = showCollapseContent) {
@@ -99,12 +131,13 @@ fun PostScreen(
                             ) {
                                 PostImageView(
                                     id,
-                                    makeMockImages(),
+                                    moment?.images ?: emptyList()
                                 )
 
                             }
                             PostDetails(
                                 id,
+                                moment
                             )
                         }
                     }
@@ -114,18 +147,18 @@ fun PostScreen(
                         .fillMaxWidth()
 
                 ) {
-                    CommentsSection(scrollState) {
+                    CommentsSection(lazyPagingItems = lazyPagingItems, scrollState) {
                         showCollapseContent = it
                     }
                 }
             }
         }
     }
-
 }
 
 @Composable
 fun Header() {
+    val navController = LocalNavController.current
     Row(
         modifier = Modifier
             .fillMaxWidth()
@@ -136,6 +169,9 @@ fun Header() {
             painter = painterResource(id = R.drawable.rider_pro_nav_back), // Replace with your image resource
             contentDescription = "Back",
             modifier = Modifier
+                .noRippleClickable {
+                    navController.popBackStack()
+                }
                 .size(32.dp)
 
         )
@@ -171,37 +207,27 @@ fun Header() {
     }
 }
 
-data class PostImage(
-    val imgRes: Int,
-    val description: String
-)
 
-@OptIn(ExperimentalFoundationApi::class, ExperimentalSharedTransitionApi::class)
+@OptIn(ExperimentalFoundationApi::class)
 @Composable
 fun PostImageView(
     postId: String,
-    images: List<PostImage>,
+    images: List<String>,
 ) {
-    val sharedTransitionScope = LocalSharedTransitionScope.current
-    val animatedContentScope = LocalAnimatedContentScope.current
     val pagerState = rememberPagerState(pageCount = { images.size })
-    with(sharedTransitionScope) {
     Column {
         HorizontalPager(
             state = pagerState,
             modifier = Modifier
                 .weight(1f)
-                    .fillMaxWidth()
+                .fillMaxWidth(),
         ) { page ->
-                Image(
+            val image = images[page]
-                    painter = painterResource(id = images[page].imgRes),
+            AsyncImage(
-                    contentDescription = images[page].description,
+                image,
+                contentDescription = "Image",
                 contentScale = ContentScale.Crop,
-                    modifier = Modifier.Companion
+                modifier = Modifier
-                        .sharedElement(
-                            sharedTransitionScope.rememberSharedContentState(key = "image-$postId"),
-                            animatedVisibilityScope = animatedContentScope
-                        )
                     .fillMaxSize()
             )
         }
@@ -232,196 +258,46 @@ fun PostImageView(
             }
         }
     }
-    }
+
 }
 
 @OptIn(ExperimentalSharedTransitionApi::class)
 @Composable
 fun PostDetails(
     postId: String,
+    momentItem: MomentItem?
 ) {
-    val sharedTransitionScope = LocalSharedTransitionScope.current
+    momentItem?.let {
-    val animatedContentScope = LocalAnimatedContentScope.current
-    with(sharedTransitionScope) {
         Column(modifier = Modifier.padding(16.dp)) {
 
-        Text(text = "By strongarming Ducati into giving him the factory seat.Marquez effectively …", fontSize = 16.sp, fontWeight = FontWeight.Bold, modifier = Modifier.Companion.sharedElement(
+            Text(
-            sharedTransitionScope.rememberSharedContentState(key = "text-$postId"),
+                text = momentItem.momentTextContent,
-            animatedVisibilityScope = animatedContentScope
+                fontSize = 16.sp,
-        ))
+                fontWeight = FontWeight.Bold,
+            )
             Text(text = "12-11 发布")
             Spacer(modifier = Modifier.height(8.dp))
             Text(text = "共231条评论")
         }
     }
-}
 
-fun MakeMockComments(): List<Comment> {
+
-    return listOf(
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = listOf(
-                Comment(
-                    name = "Diego Morata",
-                    comment = "这里太适合骑行了",
-                    date = "3 days ago",
-                    likes = 200,
-                    replies = emptyList()
-                ),
-                Comment(
-                    name = "Diego Morata",
-                    comment = "这里太适合骑行了",
-                    date = "3 days ago",
-                    likes = 200,
-                    replies = emptyList()
-                )
-            )
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        ),
-        Comment(
-            name = "Diego Morata",
-            comment = "这里太适合骑行了",
-            date = "3 days ago",
-            likes = 200,
-            replies = emptyList()
-        )
-    )
 }
 
 @Composable
 fun CommentsSection(
+    lazyPagingItems: LazyPagingItems<Comment>,
     scrollState: LazyListState = rememberLazyListState(),
     onWillCollapse: (Boolean) -> Unit
 ) {
-    val items = MakeMockComments()
     LazyColumn(
         state = scrollState, modifier = Modifier
             .padding(start = 16.dp, end = 16.dp)
             .fillMaxHeight()
     ) {
-        items(items) { comment ->
+        items(lazyPagingItems.itemCount) { idx ->
-            CommentItem(comment)
+            val item = lazyPagingItems[idx] ?: return@items
+            CommentItem(item)
         }
     }
 
@@ -437,14 +313,6 @@ fun CommentsSection(
     }
 }
 
-data class Comment(
-    val name: String,
-    val comment: String,
-    val date: String,
-    val likes: Int,
-    val replies: List<Comment>
-)
-
 
 @Composable
 fun CommentItem(comment: Comment) {
@@ -485,6 +353,21 @@ fun CommentItem(comment: Comment) {
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun BottomNavigationBar() {
+    val systemUiController = rememberSystemUiController()
+    var showCommentModal by remember { mutableStateOf(false) }
+    if (showCommentModal) {
+        ModalBottomSheet(
+            onDismissRequest = { showCommentModal = false },
+            containerColor = Color.White,
+            sheetState = rememberModalBottomSheetState(
+                skipPartiallyExpanded = true
+            ),
+            dragHandle = {},
+            shape = RoundedCornerShape(topStart = 16.dp, topEnd = 16.dp),
+        ) {
+            EditCommentBottomModal()
+        }
+    }
     Column(
         modifier = Modifier.background(Color.White)
     ) {
@@ -503,6 +386,9 @@ fun BottomNavigationBar() {
                     .weight(1f)
                     .height(31.dp)
                     .padding(8.dp)
+                    .noRippleClickable {
+                        showCommentModal = true
+                    }
             ) {
                 Row(
                     verticalAlignment = Alignment.CenterVertically