[新增] 使用Compose重写的正文搜索界面，也许存在不稳定情况

app/src/main/java/io/legado/app/data/repository/BookRepository.kt

@@ -0,0 +1,12 @@
+package io.legado.app.data.repository
+
+import io.legado.app.data.appDb
+import io.legado.app.data.entities.Book
+
+class BookRepository {
+
+    suspend fun getBook(bookUrl: String): Book? {
+        return appDb.bookDao.getBook(bookUrl)
+    }
+
+}

app/src/main/java/io/legado/app/data/repository/SearchContentRepository.kt

@@ -0,0 +1,143 @@
+package io.legado.app.data.repository
+
+import io.legado.app.data.appDb
+import io.legado.app.data.entities.Book
+import io.legado.app.data.entities.BookChapter
+import io.legado.app.help.book.BookHelp
+import io.legado.app.help.book.ContentProcessor
+import io.legado.app.help.book.isLocal
+import io.legado.app.help.config.AppConfig
+import io.legado.app.ui.book.searchContent.SearchResult
+import io.legado.app.utils.ChineseUtils
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.currentCoroutineContext
+import kotlinx.coroutines.ensureActive
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.flow.flowOn
+
+class SearchContentRepository {
+
+    fun search(book: Book, query: String, replaceEnabled: Boolean, regexReplace: Boolean): Flow<List<SearchResult>> = flow {
+        val chapters = appDb.bookChapterDao.getChapterList(book.bookUrl)
+        val totalChapters = chapters.size
+        val contentProcessor = ContentProcessor.get(book.name, book.origin)
+        val cacheChapterNames = BookHelp.getChapterFiles(book).toHashSet()
+
+        val allResults = mutableListOf<SearchResult>()
+        var lastEmitTime = System.currentTimeMillis()
+
+        for (bookChapter in chapters) {
+
+            currentCoroutineContext().ensureActive()
+
+            if (book.isLocal || cacheChapterNames.contains(bookChapter.getFileName())) {
+                val chapterResults = searchChapter(
+                    query,
+                    book,
+                    bookChapter,
+                    contentProcessor,
+                    replaceEnabled,
+                    regexReplace
+                ).map {
+                    if (totalChapters > 0) {
+                        it.copy(progressPercent = (bookChapter.index + 1).toFloat() / totalChapters * 100f)
+                    } else {
+                        it
+                    }
+                }
+
+                if (chapterResults.isNotEmpty()) {
+                    allResults.addAll(chapterResults)
+
+                    val now = System.currentTimeMillis()
+                    if (now - lastEmitTime > 350L) {
+                        emit(ArrayList(allResults))
+                        lastEmitTime = now
+                    }
+                }
+            }
+        }
+        emit(ArrayList(allResults))
+    }.flowOn(Dispatchers.Default)
+
+    private suspend fun searchChapter(
+        query: String,
+        book: Book,
+        chapter: BookChapter,
+        contentProcessor: ContentProcessor,
+        replaceEnabled: Boolean,
+        regexReplace: Boolean
+    ): List<SearchResult> {
+        val searchResultsWithinChapter: MutableList<SearchResult> = mutableListOf()
+        val chapterContent = BookHelp.getContent(book, chapter) ?: return searchResultsWithinChapter
+
+        chapter.title = when (AppConfig.chineseConverterType) {
+            1 -> ChineseUtils.t2s(chapter.title)
+            2 -> ChineseUtils.s2t(chapter.title)
+            else -> chapter.title
+        }
+
+        val mContent = contentProcessor.getContent(
+            book, chapter, chapterContent, useReplace = replaceEnabled
+        ).toString()
+
+        val positions = searchPosition(mContent, query, regexReplace)
+
+        positions.forEachIndexed { index, position ->
+            val construct = getResultAndQueryIndex(mContent, position, query)
+            val result = SearchResult(
+                resultCountWithinChapter = index,
+                resultText = construct.second,
+                chapterTitle = chapter.title,
+                query = query,
+                chapterIndex = chapter.index,
+                queryIndexInResult = construct.first,
+                queryIndexInChapter = position,
+                isRegex = regexReplace
+            )
+            searchResultsWithinChapter.add(result)
+        }
+        return searchResultsWithinChapter
+    }
+
+    private fun searchPosition(content: String, pattern: String, regexReplace: Boolean): List<Int> {
+        val position: MutableList<Int> = mutableListOf()
+        if (regexReplace) { // 正则表达式搜索
+            try {
+                Regex(pattern).findAll(content).forEach { match ->
+                    position.add(match.range.first)
+                }
+            } catch (e: Exception) {
+                return position
+            }
+        } else {
+            var index = content.indexOf(pattern)
+            while (index >= 0) {
+                position.add(index)
+                index = content.indexOf(pattern, index + pattern.length)
+            }
+        }
+        return position
+    }
+
+    private fun getResultAndQueryIndex(
+        content: String,
+        queryIndexInContent: Int,
+        query: String
+    ): Pair<Int, String> {
+        val length = 12
+        var po1 = queryIndexInContent - length
+        var po2 = queryIndexInContent + query.length + length
+        if (po1 < 0) {
+            po1 = 0
+        }
+        if (po2 > content.length) {
+            po2 = content.length
+        }
+        val queryIndexInResult = queryIndexInContent - po1
+        val newText = content.substring(po1, po2)
+        return queryIndexInResult to newText
+    }
+
+}

app/src/main/java/io/legado/app/di/appModule.kt

@@ -1,14 +1,17 @@
 package io.legado.app.di
 
 import io.legado.app.data.AppDatabase
+import io.legado.app.data.repository.BookRepository
 import io.legado.app.data.repository.DirectLinkUploadRepository
 import io.legado.app.data.repository.ExploreRepository
 import io.legado.app.data.repository.ExploreRepositoryImpl
 import io.legado.app.data.repository.ReadRecordRepository
+import io.legado.app.data.repository.SearchContentRepository
 import io.legado.app.data.repository.UploadRepository
 import io.legado.app.ui.book.bookmark.AllBookmarkViewModel
 import io.legado.app.ui.book.explore.ExploreShowViewModel
 import io.legado.app.ui.book.readRecord.ReadRecordViewModel
+import io.legado.app.ui.book.searchContent.SearchContentViewModel
 import io.legado.app.ui.replace.ReplaceRuleViewModel
 import io.legado.app.ui.replace.edit.ReplaceEditViewModel
 import org.koin.android.ext.koin.androidApplication
@@ -41,4 +44,9 @@ val appModule = module {
             get()
         )
     }
+
+    // Search
+    single { SearchContentRepository() }
+    single { BookRepository() }
+    viewModel { SearchContentViewModel(get(), get()) }
 }

app/src/main/java/io/legado/app/ui/book/searchContent/SearchContentActivity.kt

@@ -1,264 +1,29 @@
 package io.legado.app.ui.book.searchContent
 
-//import io.legado.app.lib.theme.bottomBackground
-//import io.legado.app.lib.theme.getPrimaryTextColor
-//import io.legado.app.lib.theme.primaryTextColor
-import android.annotation.SuppressLint
-import android.content.Intent
 import android.os.Bundle
-import android.view.Menu
-import android.view.MenuItem
-import android.view.MotionEvent
-import android.widget.EditText
-import androidx.activity.viewModels
-import androidx.appcompat.widget.SearchView
-import androidx.core.view.allViews
-import androidx.core.view.isVisible
-import androidx.lifecycle.lifecycleScope
-import io.legado.app.R
-import io.legado.app.base.VMBaseActivity
-import io.legado.app.constant.AppLog
-import io.legado.app.constant.EventBus
-import io.legado.app.data.appDb
-import io.legado.app.data.entities.Book
-import io.legado.app.data.entities.BookChapter
-import io.legado.app.databinding.ActivitySearchContentBinding
-import io.legado.app.help.IntentData
-import io.legado.app.help.book.BookHelp
-import io.legado.app.help.book.isLocal
-import io.legado.app.ui.widget.recycler.UpLinearLayoutManager
-import io.legado.app.ui.widget.recycler.VerticalDivider
-import io.legado.app.utils.applyNavigationBarPadding
-import io.legado.app.utils.hideSoftInput
-import io.legado.app.utils.invisible
-import io.legado.app.utils.observeEvent
-import io.legado.app.utils.postEvent
-import io.legado.app.utils.shouldHideSoftInput
-import io.legado.app.utils.showSoftInput
-import io.legado.app.utils.viewbindingdelegate.viewBinding
-import io.legado.app.utils.visible
-import kotlinx.coroutines.Dispatchers.IO
-import kotlinx.coroutines.Job
-import kotlinx.coroutines.ensureActive
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
+import androidx.compose.runtime.Composable
+import io.legado.app.base.AppTheme
+import io.legado.app.base.BaseComposeActivity
 
+class SearchContentActivity : BaseComposeActivity() {
 
-class SearchContentActivity :
-    VMBaseActivity<ActivitySearchContentBinding, SearchContentViewModel>(),
-    SearchContentAdapter.Callback {
-
-    override val binding by viewBinding(ActivitySearchContentBinding::inflate)
-    override val viewModel by viewModels<SearchContentViewModel>()
-    private val adapter by lazy { SearchContentAdapter(this, this) }
-    private val mLayoutManager by lazy { UpLinearLayoutManager(this) }
-    private val searchView: SearchView by lazy {
-        binding.titleBar.findViewById(R.id.search_view)
-    }
-    private var durChapterIndex = 0
-    private var searchJob: Job? = null
-    private var initJob: Job? = null
+    private var bookUrl: String? = null
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        binding.llSearchBaseInfo.applyNavigationBarPadding()
-        val searchResultList = IntentData.get<List<SearchResult>>("searchResultList")
-        val position = intent.getIntExtra("searchResultIndex", 0)
-        val noSearchResult = searchResultList == null
-        initSearchView(noSearchResult)
-        initRecyclerView()
-        initView()
-        val bookUrl = intent.getStringExtra("bookUrl") ?: return
-        viewModel.initBook(bookUrl) {
-            initSearchResultList(searchResultList, position)
-            initBook(noSearchResult)
-        }
+        bookUrl = intent.getStringExtra("bookUrl")
     }
 
-    override fun onCompatCreateOptionsMenu(menu: Menu): Boolean {
-        menuInflater.inflate(R.menu.content_search, menu)
-        return super.onCompatCreateOptionsMenu(menu)
-    }
-
-    override fun onMenuOpened(featureId: Int, menu: Menu): Boolean {
-        menu.findItem(R.id.menu_enable_replace)?.isChecked = viewModel.replaceEnabled
-        return super.onMenuOpened(featureId, menu)
-    }
-
-    override fun onCompatOptionsItemSelected(item: MenuItem): Boolean {
-        when (item.itemId) {
-            R.id.menu_enable_replace -> {
-                viewModel.replaceEnabled = !viewModel.replaceEnabled
-                item.isChecked = viewModel.replaceEnabled
-            }
-        }
-        return super.onCompatOptionsItemSelected(item)
-    }
-
-    private fun initSearchResultList(list: List<SearchResult>?, position: Int) {
-        list ?: return
-        viewModel.searchResultList.addAll(list)
-        viewModel.searchResultCounts = list.size
-        adapter.setItems(list)
-        binding.recyclerView.scrollToPosition(position)
-    }
-
-    private fun initSearchView(requestFocus: Boolean) {
-        //searchView.applyTint(primaryTextColor)
-        searchView.isSubmitButtonEnabled = true
-        searchView.queryHint = getString(R.string.search)
-        if (requestFocus) searchView.isIconified = false
-        searchView.setOnQueryTextListener(object : SearchView.OnQueryTextListener {
-            override fun onQueryTextSubmit(query: String): Boolean {
-                startContentSearch(query.trim())
-                searchView.clearFocus()
-                return false
-            }
-
-            override fun onQueryTextChange(newText: String): Boolean {
-                return false
-            }
-        })
-    }
-
-    private fun initRecyclerView() {
-        binding.recyclerView.layoutManager = mLayoutManager
-        binding.recyclerView.adapter = adapter
-    }
-
-    private fun initView() {
-        binding.ivSearchContentTop.setOnClickListener {
-            mLayoutManager.scrollToPositionWithOffset(0, 0)
-        }
-        binding.ivSearchContentBottom.setOnClickListener {
-            if (adapter.itemCount > 0) {
-                mLayoutManager.scrollToPositionWithOffset(adapter.itemCount - 1, 0)
-            }
-        }
-        binding.tvCurrentSearchInfo.setOnClickListener {
-            searchView.allViews.forEach { view ->
-                if (view is EditText) {
-                    view.showSoftInput()
-                    return@setOnClickListener
-                }
-            }
-        }
-        binding.fbStop.setOnClickListener {
-            searchJob?.cancel()
-        }
-    }
-
-    @SuppressLint("SetTextI18n")
-    private fun initBook(submit: Boolean = true) {
-        binding.tvCurrentSearchInfo.text =
-            this.getString(R.string.search_content_size) + ": ${viewModel.searchResultCounts}"
-        viewModel.book?.let {
-            initCacheFileNames(it)
-            durChapterIndex = it.durChapterIndex
-            intent.getStringExtra("searchWord")?.let { searchWord ->
-                searchView.setQuery(searchWord, submit)
+    @Composable
+    override fun Content() {
+        AppTheme {
+            bookUrl?.let {
+                SearchContentScreen(
+                    bookUrl = it,
+                    onBack = { finish() }
+                )
             }
         }
     }
 
-    private fun initCacheFileNames(book: Book) {
-        initJob = lifecycleScope.launch {
-            withContext(IO) {
-                viewModel.cacheChapterNames.addAll(BookHelp.getChapterFiles(book))
-            }
-            adapter.notifyItemRangeChanged(0, adapter.itemCount, true)
-        }
-    }
-
-    override fun observeLiveBus() {
-        observeEvent<Pair<Book, BookChapter>>(EventBus.SAVE_CONTENT) { (book, chapter) ->
-            viewModel.book?.bookUrl?.let { bookUrl ->
-                if (book.bookUrl == bookUrl) {
-                    viewModel.cacheChapterNames.add(chapter.getFileName())
-                    adapter.notifyItemChanged(chapter.index, true)
-                }
-            }
-        }
-    }
-
-    @SuppressLint("SetTextI18n")
-    fun startContentSearch(query: String) {
-        // 按章节搜索内容
-        if (query.isBlank()) return
-        searchJob?.cancel()
-        adapter.clearItems()
-        viewModel.searchResultList.clear()
-        viewModel.searchResultCounts = 0
-        viewModel.lastQuery = query
-        binding.refreshProgressBar.isVisible = true
-        binding.fbStop.visible()
-        searchJob = lifecycleScope.launch(IO) {
-            initJob?.join()
-            kotlin.runCatching {
-                appDb.bookChapterDao.getChapterList(viewModel.bookUrl).forEach { bookChapter ->
-                    ensureActive()
-                    val totalChapters = viewModel.book?.totalChapterNum
-                        ?: appDb.bookChapterDao.getChapterCount(viewModel.bookUrl)
-
-                    val searchResults = if (isLocalBook
-                        || viewModel.cacheChapterNames.contains(bookChapter.getFileName())
-                    ) {
-                        viewModel.searchChapter(query, bookChapter).map { result ->
-                            if (totalChapters > 0) {
-                                result.copy(progressPercent = (bookChapter.index + 1).toFloat() / totalChapters * 100f)
-                            } else {
-                                result
-                            }
-                        }
-                    } else {
-                        return@forEach
-                    }
-
-                    ensureActive()
-                    if (searchResults.isNotEmpty()) {
-                        viewModel.searchResultList.addAll(searchResults)
-                        binding.tvCurrentSearchInfo.post {
-                            binding.tvCurrentSearchInfo.text =
-                                this@SearchContentActivity.getString(R.string.search_content_size) + ": ${viewModel.searchResultCounts}"
-                            adapter.addItems(searchResults)
-                        }
-                    }
-                }
-                if (viewModel.searchResultCounts == 0) {
-                    val noSearchResult =
-                        SearchResult(resultText = getString(R.string.search_content_empty))
-                    binding.tvCurrentSearchInfo.post {
-                        adapter.addItem(noSearchResult)
-                    }
-                }
-            }.onFailure {
-                AppLog.put("全文搜索出错\n${it.localizedMessage}", it)
-            }
-            binding.tvCurrentSearchInfo.post {
-                binding.fbStop.invisible()
-                binding.refreshProgressBar.isVisible = false
-            }
-        }
-    }
-
-    private val isLocalBook: Boolean
-        get() = viewModel.book?.isLocal == true
-
-    override fun openSearchResult(searchResult: SearchResult, index: Int) {
-        searchJob?.cancel()
-        postEvent(EventBus.SEARCH_RESULT, viewModel.searchResultList as List<SearchResult>)
-        val searchData = Intent()
-        val key = System.currentTimeMillis()
-        IntentData.put("searchResult$key", searchResult)
-        IntentData.put("searchResultList$key", viewModel.searchResultList)
-        searchData.putExtra("key", key)
-        searchData.putExtra("index", index)
-        setResult(RESULT_OK, searchData)
-        finish()
-    }
-
-    override fun durChapterIndex(): Int {
-        return durChapterIndex
-    }
-
-}
+}

app/src/main/java/io/legado/app/ui/book/searchContent/SearchContentScreen.kt

@@ -0,0 +1,326 @@
+package io.legado.app.ui.book.searchContent
+
+import android.app.Activity
+import android.content.Intent
+import androidx.activity.compose.LocalActivity
+import androidx.compose.animation.AnimatedContent
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.foundation.layout.Arrangement
+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
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.wrapContentSize
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.Stop
+import androidx.compose.material3.Card
+import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilterChip
+import androidx.compose.material3.FloatingActionButton
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.LinearProgressIndicator
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.MediumTopAppBar
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.input.nestedscroll.nestedScroll
+import androidx.compose.ui.text.buildAnnotatedString
+import androidx.compose.ui.unit.dp
+import io.legado.app.ui.widget.components.AnimatedTextLine
+import io.legado.app.ui.widget.components.EmptyMessageView
+import io.legado.app.ui.widget.components.SearchBarSection
+import io.legado.app.ui.widget.components.TextCard
+import io.legado.app.ui.widget.components.lazylist.FastScrollLazyColumn
+import org.koin.androidx.compose.koinViewModel
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun SearchContentScreen(
+    bookUrl: String,
+    onBack: () -> Unit,
+    viewModel: SearchContentViewModel = koinViewModel()
+) {
+    val activity = LocalActivity.current
+
+    val uiState by viewModel.uiState.collectAsState()
+
+    val isSearching = uiState.isSearching
+    val searchResults = uiState.searchResults
+    val durChapterIndex = uiState.durChapterIndex
+    val error = uiState.error
+
+    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior()
+
+    LaunchedEffect(bookUrl) {
+        viewModel.initBook(bookUrl)
+    }
+
+    /*
+    LaunchedEffect(Unit) {
+        viewModel.effect.collect { effect ->
+            when (effect) {
+                is SearchUiEffect.OpenSearchResult -> {
+                    navController.previousBackStackEntry
+                        ?.savedStateHandle
+                        ?.set("searchResult", effect.result)
+                    navController.previousBackStackEntry
+                        ?.savedStateHandle
+                        ?.set("searchResultList", effect.allResults)
+                    navController.previousBackStackEntry
+                        ?.savedStateHandle
+                        ?.set("searchResultIndex", effect.index)
+
+                    navController.popBackStack()
+                }
+            }
+        }
+    }*/
+
+    var searchQuery by remember { mutableStateOf("") }
+    var replaceEnabled by remember { mutableStateOf(false) }
+    var regexReplace by remember { mutableStateOf(false) }
+    val contentState = when {
+        error != null -> SearchContentState.Error(error)
+        isSearching -> SearchContentState.Loading
+        searchQuery.isBlank() -> SearchContentState.EmptyQuery
+        searchResults.isEmpty() -> SearchContentState.EmptyResult
+        else -> null
+    }
+
+    val listState = rememberLazyListState()
+
+    Scaffold(
+        modifier = Modifier.nestedScroll(scrollBehavior.nestedScrollConnection),
+        topBar = {
+            Column {
+                MediumTopAppBar(
+                    title = {
+                        val title = if (searchQuery.isNotBlank() && searchResults.isNotEmpty()) {
+                            "共 ${searchResults.size} 条结果"
+                        } else {
+                            "搜索内容"
+                        }
+                        AnimatedTextLine(
+                            text = title
+                        )
+                    },
+                    navigationIcon = {
+                        IconButton(onClick = onBack) {
+                            Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = "Back")
+                        }
+                    },
+                    scrollBehavior = scrollBehavior
+                )
+                SearchBarSection(
+                    query = searchQuery,
+                    onQueryChange = {
+                        searchQuery = it
+                        viewModel.startSearch(searchQuery, replaceEnabled, regexReplace)
+                    }
+                )
+                AnimatedVisibility(visible = scrollBehavior.state.heightOffset == 0f) {
+                    Row(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(horizontal = 16.dp, vertical = 8.dp),
+                        horizontalArrangement = Arrangement.spacedBy(8.dp),
+                        verticalAlignment = Alignment.CenterVertically
+                    ) {
+                        FilterChip(
+                            selected = replaceEnabled,
+                            onClick = { replaceEnabled = !replaceEnabled },
+                            label = { Text("启用替换") }
+                        )
+                        FilterChip(
+                            selected = regexReplace,
+                            onClick = { regexReplace = !regexReplace },
+                            label = { Text("正则匹配") }
+                        )
+                    }
+                }
+                AnimatedVisibility(visible = contentState == SearchContentState.Loading) {
+                    LinearProgressIndicator(
+                        modifier = Modifier.fillMaxWidth()
+                    )
+                }
+            }
+        },
+        floatingActionButton = {
+            if (isSearching) {
+                FloatingActionButton(onClick = { viewModel.stopSearch() }) {
+                    Icon(Icons.Default.Stop, contentDescription = "停止搜索")
+                }
+            }
+        }
+    ) { paddingValues ->
+        Column(
+            modifier = Modifier
+                .fillMaxSize()
+                .padding(paddingValues)
+        ) {
+
+            AnimatedContent(
+                targetState = contentState,
+                label = "SearchContentTransition"
+            ) { state ->
+                when (state) {
+                    is SearchContentState.Error -> {
+                        EmptyMessageView(
+                            message = state.throwable.localizedMessage ?: "发生未知错误",
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .wrapContentSize()
+                        )
+                    }
+
+                    SearchContentState.EmptyQuery -> {
+                        EmptyMessageView(
+                            message = "请输入关键词开始搜索",
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .wrapContentSize()
+                        )
+                    }
+
+                    SearchContentState.EmptyResult -> {
+                        EmptyMessageView(
+                            message = "没有找到相关内容",
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .wrapContentSize()
+                        )
+                    }
+
+                    null -> Unit
+                    else -> {}
+                }
+            }
+
+            FastScrollLazyColumn(
+                state = listState,
+                modifier = Modifier.weight(1f)
+            ) {
+                itemsIndexed(searchResults) { index, result ->
+                    SearchResultItem(
+                        modifier = Modifier.animateItem(),
+                        result = result,
+                        isCurrentChapter = result.chapterIndex == durChapterIndex,
+                        onClick = {
+                            viewModel.onSearchResultClick(result, index) { key ->
+                                val intent = Intent().apply {
+                                    putExtra("key", key)
+                                    putExtra("index", index)
+                                }
+                                activity?.setResult(Activity.RESULT_OK, intent)
+                                activity?.finish()
+                            }
+                        }
+                    )
+                }
+            }
+        }
+    }
+}
+
+@Composable
+fun SearchResultItem(
+    modifier: Modifier,
+    result: SearchResult,
+    isCurrentChapter: Boolean,
+    onClick: () -> Unit
+) {
+    Card(
+        onClick = onClick,
+        modifier = modifier
+            .fillMaxWidth()
+            .padding(horizontal = 16.dp, vertical = 8.dp),
+        colors = CardDefaults.cardColors(
+            containerColor =
+                MaterialTheme.colorScheme.surfaceContainerLow
+        )
+    ) {
+        Box(modifier = Modifier.padding(16.dp)) {
+
+            Column {
+                Text(
+                    text = buildAnnotatedString {
+                        append(
+                            result.getTitleSpannable(
+                                MaterialTheme.colorScheme.primary.toArgb()
+                            )
+                        )
+                    },
+                    style = MaterialTheme.typography.titleSmall
+                )
+
+                Spacer(modifier = Modifier.height(8.dp))
+                HorizontalDivider()
+                Spacer(modifier = Modifier.height(8.dp))
+
+                Text(
+                    text = buildAnnotatedString {
+                        append(
+                            result.getContentSpannable(
+                                textColor = MaterialTheme.colorScheme.onSurface.toArgb(),
+                                accentColor = MaterialTheme.colorScheme.primary.toArgb(),
+                                bgColor = MaterialTheme.colorScheme.primaryContainer.toArgb()
+                            )
+                        )
+                    },
+                    style = MaterialTheme.typography.bodyMedium
+                )
+            }
+
+            Row (
+                modifier = Modifier.align(Alignment.TopEnd),
+                horizontalArrangement = Arrangement.spacedBy(4.dp)
+            ) {
+
+                if (isCurrentChapter) {
+                    TextCard(
+                        text = "当前章节",
+                        backgroundColor = MaterialTheme.colorScheme.secondaryContainer,
+                        contentColor = MaterialTheme.colorScheme.onSecondaryContainer,
+                        cornerRadius = 8.dp,
+                        horizontalPadding = 4.dp,
+                        verticalPadding = 2.dp,
+                    )
+                }
+
+                if (result.progressPercent > 0f) {
+                    TextCard(
+                        text = String.format("%.1f%%", result.progressPercent),
+                        backgroundColor = MaterialTheme.colorScheme.secondaryContainer,
+                        contentColor = MaterialTheme.colorScheme.onSecondaryContainer,
+                        cornerRadius = 8.dp,
+                        horizontalPadding = 4.dp,
+                        verticalPadding = 2.dp,
+                    )
+                }
+            }
+        }
+    }
+}
+
+

app/src/main/java/io/legado/app/ui/book/searchContent/SearchContentViewModel.kt

@@ -1,108 +1,127 @@
 package io.legado.app.ui.book.searchContent
 
-
-import android.app.Application
-import io.legado.app.base.BaseViewModel
-import io.legado.app.data.appDb
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import io.legado.app.constant.EventBus
 import io.legado.app.data.entities.Book
-import io.legado.app.data.entities.BookChapter
-import io.legado.app.help.book.BookHelp
-import io.legado.app.help.book.ContentProcessor
-import io.legado.app.help.config.AppConfig
-import io.legado.app.utils.ChineseUtils
-import kotlinx.coroutines.ensureActive
-import kotlin.coroutines.coroutineContext
+import io.legado.app.data.repository.BookRepository
+import io.legado.app.data.repository.SearchContentRepository
+import io.legado.app.help.IntentData
+import io.legado.app.utils.postEvent
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asSharedFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.onCompletion
+import kotlinx.coroutines.flow.onStart
+import kotlinx.coroutines.flow.update
+import kotlinx.coroutines.launch
 
-class SearchContentViewModel(application: Application) : BaseViewModel(application) {
-    var bookUrl: String = ""
-    var book: Book? = null
-    private var contentProcessor: ContentProcessor? = null
-    var lastQuery: String = ""
-    var searchResultCounts = 0
-    val cacheChapterNames = hashSetOf<String>()
-    val searchResultList: MutableList<SearchResult> = mutableListOf()
-    var replaceEnabled = false
+data class SearchUiState(
+    val isSearching: Boolean = false,
+    val searchResults: List<SearchResult> = emptyList(),
+    val durChapterIndex: Int = -1,
+    val book: Book? = null,
+    val error: Throwable? = null
+)
 
-    fun initBook(bookUrl: String, success: () -> Unit) {
-        this.bookUrl = bookUrl
-        execute {
-            book = appDb.bookDao.getBook(bookUrl)
-            book?.let {
-                contentProcessor = ContentProcessor.get(it.name, it.origin)
-            }
-        }.onSuccess {
-            success.invoke()
-        }
-    }
+sealed interface SearchUiEffect {
+    data class OpenSearchResult(
+        val result: SearchResult,
+        val index: Int,
+        val allResults: List<SearchResult>
+    ) : SearchUiEffect
+}
 
-    suspend fun searchChapter(
-        query: String,
-        chapter: BookChapter
-    ): List<SearchResult> {
-        val searchResultsWithinChapter: MutableList<SearchResult> = mutableListOf()
-        val book = book ?: return searchResultsWithinChapter
-        val chapterContent = BookHelp.getContent(book, chapter) ?: return searchResultsWithinChapter
-        coroutineContext.ensureActive()
-        chapter.title = when (AppConfig.chineseConverterType) {
-            1 -> ChineseUtils.t2s(chapter.title)
-            2 -> ChineseUtils.s2t(chapter.title)
-            else -> chapter.title
-        }
-        coroutineContext.ensureActive()
-        val mContent = contentProcessor!!.getContent(
-            book, chapter, chapterContent, useReplace = replaceEnabled
-        ).toString()
-        val positions = searchPosition(mContent, query)
-        positions.forEachIndexed { index, position ->
-            coroutineContext.ensureActive()
-            val construct = getResultAndQueryIndex(mContent, position, query)
-            val result = SearchResult(
-                resultCountWithinChapter = index,
-                resultText = construct.second,
-                chapterTitle = chapter.title,
-                query = query,
-                chapterIndex = chapter.index,
-                queryIndexInResult = construct.first,
-                queryIndexInChapter = position
+sealed interface SearchContentState {
+    data object Loading : SearchContentState
+    data object EmptyQuery : SearchContentState
+    data object EmptyResult : SearchContentState
+    data class Error(val throwable: Throwable) : SearchContentState
+}
+
+
+class SearchContentViewModel( 
+    private val bookRepository: BookRepository,
+    private val searchContentRepository: SearchContentRepository
+    ) : ViewModel() {
+
+    private val _uiState = MutableStateFlow(SearchUiState())
+    val uiState = _uiState.asStateFlow()
+
+    private val _effect = MutableSharedFlow<SearchUiEffect>()
+    val effect = _effect.asSharedFlow()
+
+    private var searchJob: Job? = null
+
+    fun initBook(bookUrl: String) {
+        viewModelScope.launch {
+            val book = bookRepository.getBook(bookUrl)
+            _uiState.value = _uiState.value.copy(
+                book = book,
+                durChapterIndex = book?.durChapterIndex ?: -1
             )
-            searchResultsWithinChapter.add(result)
         }
-        searchResultCounts += searchResultsWithinChapter.size
-        return searchResultsWithinChapter
     }
 
-    private suspend fun searchPosition(content: String, pattern: String): List<Int> {
-        val position: MutableList<Int> = mutableListOf()
-        var index = content.indexOf(pattern)
-        while (index >= 0) {
-            coroutineContext.ensureActive()
-            position.add(index)
-            index = content.indexOf(pattern, index + pattern.length)
+    fun startSearch(query: String, replaceEnabled: Boolean, regexReplace: Boolean) {
+        searchJob?.cancel()
+
+        if (query.isBlank()) {
+            _uiState.update { it.copy(
+                isSearching = false,
+                searchResults = emptyList(),
+                error = null
+            )}
+            return
+        }
+
+        searchJob = viewModelScope.launch {
+            _uiState.value.book?.let { book ->
+                searchContentRepository
+                    .search(book, query, replaceEnabled, regexReplace)
+                    .onStart {
+                        _uiState.update { it.copy(isSearching = true, error = null) }
+                    }
+                    .onCompletion {
+                        _uiState.update { it.copy(isSearching = false) }
+                    }
+                    .catch { e ->
+                        _uiState.update { it.copy(isSearching = false, error = e) }
+                    }
+                    .collect { results ->
+                        _uiState.update { it.copy(searchResults = results) }
+                    }
+            }
         }
-        return position
     }
 
-    private fun getResultAndQueryIndex(
-        content: String,
-        queryIndexInContent: Int,
-        query: String
-    ): Pair<Int, String> {
-        // 左右移动20个字符，构建关键词周边文字，在搜索结果里显示
-        // 判断段落，只在关键词所在段落内分割
-        // 利用标点符号分割完整的句
-        // length和设置结合，自由调整周边文字长度
-        val length = 20
-        var po1 = queryIndexInContent - length
-        var po2 = queryIndexInContent + query.length + length
-        if (po1 < 0) {
-            po1 = 0
-        }
-        if (po2 > content.length) {
-            po2 = content.length
-        }
-        val queryIndexInResult = queryIndexInContent - po1
-        val newText = content.substring(po1, po2)
-        return queryIndexInResult to newText
+    fun stopSearch() {
+        searchJob?.cancel()
     }
 
-}
+    fun onSearchResultClick(result: SearchResult, index: Int) {
+        searchJob?.cancel()
+        viewModelScope.launch {
+            _effect.emit(
+                SearchUiEffect.OpenSearchResult(
+                    result = result,
+                    index = index,
+                    allResults = _uiState.value.searchResults
+                )
+            )
+        }
+    }
+
+    fun onSearchResultClick(searchResult: SearchResult, index: Int, onSuccess: (key: Long) -> Unit) {
+        stopSearch()
+        postEvent(EventBus.SEARCH_RESULT, uiState.value.searchResults)
+        val key = System.currentTimeMillis()
+        IntentData.put("searchResult$key", searchResult)
+        IntentData.put("searchResultList$key", uiState.value.searchResults)
+        onSuccess(key)
+    }
+
+}

app/src/main/java/io/legado/app/ui/book/searchContent/SearchResult.kt

@@ -21,6 +21,7 @@ data class SearchResult(
     val pageIndex: Int = 0,
     val queryIndexInResult: Int = 0,
     val queryIndexInChapter: Int = 0,
+    val isRegex: Boolean = false,
     val progressPercent: Float = 0f
 ) {
 

app/src/main/java/io/legado/app/ui/widget/components/SearchBarSection.kt

@@ -34,8 +34,10 @@ fun SearchBarSection(
         shape = RoundedCornerShape(32.dp),
         color = backgroundColor
     ) {
-
         TextField(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 4.dp),
             value = query,
             onValueChange = onQueryChange,
             placeholder = { Text(placeholder) },

app/src/main/java/io/legado/app/ui/widget/components/TextCard.kt

@@ -1,22 +1,27 @@
 package io.legado.app.ui.widget.components
 
 import androidx.compose.ui.graphics.Color
-import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
 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.material3.Card
 import androidx.compose.material3.CardDefaults
+import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.MaterialTheme.colorScheme
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.vector.ImageVector
+import androidx.compose.ui.text.TextStyle
 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.TextUnit
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
 
 @Preview(showBackground = true)
 @Composable
@@ -30,38 +35,51 @@ fun PreviewTextCard() {
 
 @Composable
 fun TextCard(
-    text: String,
     modifier: Modifier = Modifier,
-    backgroundColor: Color = colorScheme.tertiaryContainer,
-    contentColor: Color = colorScheme.onTertiaryContainer,
-    cornerRadius: Dp = 12.dp,
-    paddingHorizontal: Dp = 8.dp,
-    paddingVertical: Dp = 0.dp,
-    textSize: TextUnit = 10.sp,
+    text: String,
+    icon: ImageVector? = null,
+    backgroundColor: Color = colorScheme.primaryContainer,
+    contentColor: Color = colorScheme.onPrimaryContainer,
+    cornerRadius: Dp = 8.dp,
+    horizontalPadding: Dp = 8.dp,
+    verticalPadding: Dp = 2.dp,
+    iconSize: Dp = 14.dp,
+    spacing: Dp = 4.dp,
+    textStyle: TextStyle = MaterialTheme.typography.labelSmall,
     bold: Boolean = true,
-    onClick: (() -> Unit)? = null,
 ) {
     Card(
-        modifier = modifier
-            .then(
-                if (onClick != null) Modifier.clickable { onClick() }
-                else Modifier
-            ),
-        colors = CardDefaults.cardColors(
-            containerColor = backgroundColor,
-            contentColor = contentColor
-        ),
+        modifier = modifier,
         shape = RoundedCornerShape(cornerRadius),
-        elevation = CardDefaults.cardElevation(defaultElevation = 0.dp),
+        colors = CardDefaults.cardColors(
+            containerColor = backgroundColor
+        ),
     ) {
-        Text(
-            text = text,
+        Row(
             modifier = Modifier.padding(
-                horizontal = paddingHorizontal,
-                vertical = paddingVertical
+                horizontal = horizontalPadding,
+                vertical = verticalPadding
             ),
-            fontSize = textSize,
-            fontWeight = if (bold) FontWeight.Bold else FontWeight.Normal
-        )
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+
+            if (icon != null) {
+                Icon(
+                    imageVector = icon,
+                    contentDescription = null,
+                    tint = contentColor,
+                    modifier = Modifier.size(iconSize)
+                )
+                Spacer(modifier = Modifier.width(spacing))
+            }
+
+            Text(
+                text = text,
+                style = textStyle,
+                color = contentColor,
+                fontWeight = if (bold) FontWeight.Bold else FontWeight.Normal
+            )
+        }
     }
 }
+