diff --git a/.idea/assetWizardSettings.xml b/.idea/assetWizardSettings.xml
index c830d3a..471bf10 100644
--- a/.idea/assetWizardSettings.xml
+++ b/.idea/assetWizardSettings.xml
@@ -14,8 +14,8 @@
                         <option name="values">
                           <map>
                             <entry key="assetSourceType" value="FILE" />
-                            <entry key="outputName" value="ic_wc" />
-                            <entry key="sourceFile" value="F:\SVG图标\数字.svg" />
+                            <entry key="outputName" value="ic_search_word" />
+                            <entry key="sourceFile" value="F:\SVG图标\搜索_o.svg" />
                           </map>
                         </option>
                       </PersistentState>
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 3b7db2b..5241332 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -4,6 +4,7 @@
     <option name="filePathToZoomLevelMap">
       <map>
         <entry key="..\:/android/FYReader/app/src/main/res/drawable/ic_re_seg.xml" value="0.1962962962962963" />
+        <entry key="..\:/android/FYReader/app/src/main/res/drawable/ic_search_word.xml" value="0.21944444444444444" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/activity_about.xml" value="0.12132725430597771" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/activity_donate.xml" value="0.536" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/activity_feedback.xml" value="0.12132725430597771" />
@@ -11,17 +12,29 @@
         <entry key="..\:/android/FYReader/app/src/main/res/layout/activity_group_manager.xml" value="0.12132725430597771" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/activity_manage_group.xml" value="0.21195652173913043" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/activity_more_setting.xml" value="0.264" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/activity_read.xml" value="0.17028985507246377" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/activity_search_book.xml" value="0.12132725430597771" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/activity_search_word.xml" value="0.144" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/dialog_textview.xml" value="0.1947463768115942" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/fingerprint_dialog.xml" value="0.20425724637681159" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/fragment_file_category.xml" value="0.2318840579710145" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/fragment_find_book_2.xml" value="0.12132725430597771" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/fragment_local_source.xml" value="0.1947463768115942" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/fragment_private_bookcase.xml" value="0.21195652173913043" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/fragment_webdav_setting.xml" value="0.4" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/gridview_book_detailed_item.xml" value="0.1947463768115942" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/item_book_source.xml" value="0.21195652173913043" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/item_group.xml" value="0.4" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/item_local_source.xml" value="0.21195652173913043" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/item_replace_rule.xml" value="0.1947463768115942" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/item_search_book.xml" value="0.1947463768115942" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/item_search_word1.xml" value="0.2889273356401384" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/item_search_word2.xml" value="0.1947463768115942" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/item_search_word_1.xml" value="0.1947463768115942" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/layout_about_content.xml" value="0.12132725430597771" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/layout_book_detail_header.xml" value="0.536" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/listview_search_book_item.xml" value="0.22010869565217392" />
+        <entry key="..\:/android/FYReader/app/src/main/res/layout/search_book_item.xml" value="0.1947463768115942" />
         <entry key="..\:/android/FYReader/app/src/main/res/layout/view_file_picker.xml" value="0.12132725430597771" />
         <entry key="..\:/android/FYReader/app/src/main/res/menu/menu_book.xml" value="0.13703703703703704" />
         <entry key="..\:/android/FYReader/app/src/main/res/menu/menu_book_detail.xml" value="0.24947916666666667" />
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index e34edfb..162a149 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -122,6 +122,7 @@
         <activity android:name=".ui.activity.ReadRecordActivity" />
         <activity android:name=".ui.activity.FindBookActivity" />
         <activity android:name=".ui.activity.GroupManagerActivity" />
+        <activity android:name=".ui.activity.SearchWordActivity" />
 
         <receiver android:name=".util.notification.NotificationClickReceiver" />
         <receiver android:name=".ui.presenter.BookcasePresenter$cancelDownloadReceiver" />
diff --git a/app/src/main/assets/updatelog.fy b/app/src/main/assets/updatelog.fy
index f08ddd9..b6c7252 100644
--- a/app/src/main/assets/updatelog.fy
+++ b/app/src/main/assets/updatelog.fy
@@ -1,3 +1,10 @@
+2021.12.06
+风月读书v2.2.4
+更新内容：
+1、新增书籍内容搜索
+2、修复内容替换bug
+3、修复书源导入bug
+
 2021.12.04
 风月读书v2.2.3
 更新内容：
diff --git a/app/src/main/java/xyz/fycz/myreader/common/APPCONST.java b/app/src/main/java/xyz/fycz/myreader/common/APPCONST.java
index 67b827d..c8af5aa 100644
--- a/app/src/main/java/xyz/fycz/myreader/common/APPCONST.java
+++ b/app/src/main/java/xyz/fycz/myreader/common/APPCONST.java
@@ -65,6 +65,9 @@ public class APPCONST {
     public static final String RESULT_HISTORY_CHAPTER = "result_history_chapter";
     public static final String RESULT_UP_MENU = "result_up_menu";
     public static final String SEARCH_KEY = "searchKey";
+    public static final String BOOK_KEY = "bookKey";
+    public static final String CHAPTERS_KEY = "chaptersKey";
+    public static final String PAGE_LOADER_KEY = "pageLoaderKey";
 
 
     public static final String[] READ_STYLE_NIGHT = {"#94928c", "#393431"};//黑夜
@@ -95,6 +98,7 @@ public class APPCONST {
     public static final int REQUEST_SELECT_COVER = 1012;
     public static final int REQUEST_EDIT_BOOK = 1013;
     public static final int REQUEST_GROUP_MANAGER = 1014;
+    public static final int REQUEST_SEARCH_WORD = 1015;
 
     public static final int REQUEST_READ = 1;
 
diff --git a/app/src/main/java/xyz/fycz/myreader/entity/SearchWord1.kt b/app/src/main/java/xyz/fycz/myreader/entity/SearchWord1.kt
new file mode 100644
index 0000000..6f24c48
--- /dev/null
+++ b/app/src/main/java/xyz/fycz/myreader/entity/SearchWord1.kt
@@ -0,0 +1,12 @@
+package xyz.fycz.myreader.entity
+
+/**
+ * @author fengyue
+ * @date 2021/12/5 20:18
+ */
+data class SearchWord1(
+    var bookId: String,
+    var chapterNum: Int,
+    var chapterTitle: String,
+    var searchWord2List: MutableList<SearchWord2>
+)
diff --git a/app/src/main/java/xyz/fycz/myreader/entity/SearchWord2.kt b/app/src/main/java/xyz/fycz/myreader/entity/SearchWord2.kt
new file mode 100644
index 0000000..61578c3
--- /dev/null
+++ b/app/src/main/java/xyz/fycz/myreader/entity/SearchWord2.kt
@@ -0,0 +1,14 @@
+package xyz.fycz.myreader.entity
+
+/**
+ * @author fengyue
+ * @date 2021/12/5 20:03
+ */
+data class SearchWord2(
+    var keyword: String,
+    var chapterNum: Int,
+    var dataStr: String,
+    var dataIndex: Int,
+    var index: Int,
+    var count: Int
+)
diff --git a/app/src/main/java/xyz/fycz/myreader/experiment/BookWCEstimate.kt b/app/src/main/java/xyz/fycz/myreader/experiment/BookWCEstimate.kt
index f26f96b..8a644b7 100644
--- a/app/src/main/java/xyz/fycz/myreader/experiment/BookWCEstimate.kt
+++ b/app/src/main/java/xyz/fycz/myreader/experiment/BookWCEstimate.kt
@@ -18,6 +18,7 @@ class BookWCEstimate {
     /**
      * -1：本地文件不存在
      * -2：书籍章节缓存数量少于20
+     * -3：epub书籍暂不支持计算字数
      */
     fun getWordCount(book: Book): Int {
         if (book.type == "本地书籍") {
@@ -29,6 +30,7 @@ class BookWCEstimate {
     }
 
     private fun getLocalWordCount(book: Book): Int {
+        if (book.chapterUrl.endsWith(".epub")) return -3
         val file = File(book.chapterUrl)
         if (!file.exists()) return -1
         return -countChar(file)
diff --git a/app/src/main/java/xyz/fycz/myreader/model/SearchEngine.java b/app/src/main/java/xyz/fycz/myreader/model/SearchEngine.java
index f366e9c..e920016 100644
--- a/app/src/main/java/xyz/fycz/myreader/model/SearchEngine.java
+++ b/app/src/main/java/xyz/fycz/myreader/model/SearchEngine.java
@@ -88,7 +88,8 @@ public class SearchEngine {
      * 关闭引擎
      */
     public void closeSearchEngine() {
-        executorService.shutdown();
+        if (executorService != null)
+            executorService.shutdown();
         if (!compositeDisposable.isDisposed())
             compositeDisposable.dispose();
         compositeDisposable = null;
@@ -170,7 +171,7 @@ public class SearchEngine {
                         }
                     });
         } else {
-            if (searchFinishNum >= mSourceList.size()) {
+            if (searchFinishNum == mSourceList.size()) {
                 if (searchSuccessNum == 0) {
                     searchListener.searchBookError(new Throwable("未搜索到内容"));
                 }
diff --git a/app/src/main/java/xyz/fycz/myreader/model/SearchWordEngine.kt b/app/src/main/java/xyz/fycz/myreader/model/SearchWordEngine.kt
new file mode 100644
index 0000000..6fc9bc0
--- /dev/null
+++ b/app/src/main/java/xyz/fycz/myreader/model/SearchWordEngine.kt
@@ -0,0 +1,195 @@
+package xyz.fycz.myreader.model
+
+import io.reactivex.*
+import io.reactivex.android.schedulers.AndroidSchedulers
+import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.disposables.Disposable
+import io.reactivex.schedulers.Schedulers
+import xyz.fycz.myreader.R
+import xyz.fycz.myreader.application.App
+import xyz.fycz.myreader.entity.SearchWord1
+import xyz.fycz.myreader.entity.SearchWord2
+import xyz.fycz.myreader.greendao.entity.Book
+import xyz.fycz.myreader.greendao.entity.Chapter
+import xyz.fycz.myreader.greendao.service.ChapterService
+import xyz.fycz.myreader.util.SharedPreUtils
+import xyz.fycz.myreader.util.ToastUtils
+import xyz.fycz.myreader.util.help.ChapterContentHelp
+import xyz.fycz.myreader.widget.page.PageLoader
+import java.io.File
+import java.util.concurrent.ExecutorService
+import java.util.concurrent.Executors
+
+/**
+ * @author fengyue
+ * @date 2021/12/5 21:17
+ */
+class SearchWordEngine(
+    private val book: Book,
+    private val chapters: List<Chapter>,
+    private val pageLoader: PageLoader
+) {
+    private val TAG = "SearchWordEngine"
+
+    //线程池
+    private var executorService: ExecutorService
+
+    private var scheduler: Scheduler
+    private var compositeDisposable: CompositeDisposable
+    private lateinit var searchListener: OnSearchListener
+    private val threadsNum =
+        SharedPreUtils.getInstance().getInt(App.getmContext().getString(R.string.threadNum), 8);
+    private var searchSiteIndex = 0
+    private var searchSuccessNum = 0
+    private var searchFinishNum = 0
+    private var isLocalBook = false
+
+    fun setOnSearchListener(searchListener: OnSearchListener) {
+        this.searchListener = searchListener
+    }
+
+    init {
+        executorService = Executors.newFixedThreadPool(threadsNum)
+        scheduler = Schedulers.from(executorService)
+        compositeDisposable = CompositeDisposable()
+    }
+
+    fun stopSearch() {
+        compositeDisposable.dispose()
+        compositeDisposable = CompositeDisposable()
+        searchListener.loadFinish(searchSuccessNum == 0)
+    }
+
+    /**
+     * 关闭引擎
+     */
+    fun closeSearchEngine() {
+        executorService.shutdown()
+        if (!compositeDisposable.isDisposed) compositeDisposable.dispose()
+    }
+
+    /**
+     * 搜索关键字(模糊搜索)
+     *
+     * @param keyword
+     */
+    fun search(keyword: String) {
+        if ("本地书籍" == book.type) {
+            isLocalBook = true
+            if (!File(book.chapterUrl).exists()) {
+                ToastUtils.showWarring("当前书籍源文件不存在，无法搜索！")
+                searchListener.loadFinish(true)
+                return
+            }
+        }
+        if (chapters.isEmpty()) {
+            ToastUtils.showWarring("当前书籍章节目录为空，无法搜索！")
+            searchListener.loadFinish(true)
+            return
+        }
+        searchSuccessNum = 0
+        searchSiteIndex = -1
+        searchFinishNum = 0
+        for (i in 0 until Math.min(threadsNum, chapters.size)) {
+            searchOnEngine(keyword)
+        }
+    }
+
+    @Synchronized
+    private fun searchOnEngine(keyword: String) {
+        searchSiteIndex++
+        if (searchSiteIndex < chapters.size) {
+            val chapterNum = searchSiteIndex
+            val chapter = chapters[chapterNum]
+            Observable.create(ObservableOnSubscribe<SearchWord1> { emitter ->
+                val searchWord1 =
+                    SearchWord1(book.id, chapterNum, chapter.title, mutableListOf())
+                if (!isLocalBook && !ChapterService.isChapterCached(book.id, chapter.title)) {
+                    emitter.onNext(searchWord1)
+                    return@ObservableOnSubscribe
+                }
+                var content = pageLoader.getChapterReader(chapter)
+                content = pageLoader.contentHelper.replaceContent(
+                    book.name + "-" + book.author,
+                    book.source,
+                    content,
+                    true
+                )
+                if (book.reSeg) {
+                    content = ChapterContentHelp.LightNovelParagraph2(content, chapter.title)
+                }
+                val allLine: List<String> = content.split("\n")
+                var count = 0
+                allLine.forEach {
+                    var index: Int = -1
+                    while (it.indexOf(keyword, index + 1).also { index = it } != -1) {
+                        var leftI = 0
+                        var rightI = it.length
+                        var leftS = ""
+                        var rightS = ""
+                        if (leftI < index - 20) {
+                            leftI = index - 20
+                            leftS = "..."
+                        }
+                        if (rightI > index + 20) {
+                            rightI = index + 20
+                            rightS = "..."
+                        }
+                        val str = leftS + it.substring(leftI, rightI) + rightS
+                        val searchWord2 =
+                            SearchWord2(
+                                keyword,
+                                chapterNum,
+                                str,
+                                index - leftI + leftS.length,
+                                index,
+                                count
+                            )
+                        searchWord1.searchWord2List.add(searchWord2)
+                        count++
+                    }
+                }
+                emitter.onNext(searchWord1)
+                emitter.onComplete()
+            }).subscribeOn(scheduler).observeOn(AndroidSchedulers.mainThread())
+                .subscribe(object : Observer<SearchWord1?> {
+                    override fun onSubscribe(d: Disposable) {
+                        compositeDisposable.add(d)
+                    }
+
+                    override fun onNext(searchWord1: SearchWord1) {
+                        searchFinishNum++
+                        if (searchWord1.searchWord2List.isNotEmpty()) {
+                            searchSuccessNum++
+                            searchListener.loadMore(searchWord1)
+                        }
+                        searchOnEngine(keyword)
+                    }
+
+                    override fun onError(e: Throwable) {
+                        searchFinishNum++
+                        searchOnEngine(keyword)
+                        if (App.isDebug()) e.printStackTrace()
+                    }
+
+                    override fun onComplete() {
+                    }
+
+                })
+        } else {
+            if (searchFinishNum == chapters.size) {
+                if (searchSuccessNum == 0) {
+                    ToastUtils.showWarring("搜索结果为空")
+                    searchListener.loadFinish(true)
+                } else {
+                    searchListener.loadFinish(false)
+                }
+            }
+        }
+    }
+
+    interface OnSearchListener {
+        fun loadFinish(isEmpty: Boolean)
+        fun loadMore(item: SearchWord1)
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/activity/BookDetailedActivity.java b/app/src/main/java/xyz/fycz/myreader/ui/activity/BookDetailedActivity.java
index 5b43bb3..d48dd4d 100644
--- a/app/src/main/java/xyz/fycz/myreader/ui/activity/BookDetailedActivity.java
+++ b/app/src/main/java/xyz/fycz/myreader/ui/activity/BookDetailedActivity.java
@@ -671,6 +671,8 @@ public class BookDetailedActivity extends BaseActivity {
                     ToastUtils.showWarring("书籍源文件不存在，无法计算字数");
                 } else if (count == -2) {
                     ToastUtils.showWarring("已缓存章节数量不足20，无法计算字数");
+                } else if (count == -3) {
+                    ToastUtils.showWarring("epub书籍暂不支持计算字数");
                 } else {
                     String tip = "\n";
                     if (count > 0) {
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/activity/ReadActivity.java b/app/src/main/java/xyz/fycz/myreader/ui/activity/ReadActivity.java
index faca893..b9bcdb1 100644
--- a/app/src/main/java/xyz/fycz/myreader/ui/activity/ReadActivity.java
+++ b/app/src/main/java/xyz/fycz/myreader/ui/activity/ReadActivity.java
@@ -778,6 +778,16 @@ public class ReadActivity extends BaseActivity implements ColorPickerDialogListe
                 sourceIntent.putExtra(APPCONST.BOOK_SOURCE, source);
                 startActivity(sourceIntent);
             }
+        } else if (itemId == R.id.action_search) {
+            BitIntentDataManager.getInstance().putData(APPCONST.BOOK_KEY, mBook);
+            BitIntentDataManager.getInstance().putData(APPCONST.CHAPTERS_KEY, mChapters);
+            BitIntentDataManager.getInstance().putData(APPCONST.PAGE_LOADER_KEY, mPageLoader);
+            //切换菜单
+            toggleMenu(true);
+            //跳转
+            mHandler.postDelayed(() -> {
+                startActivityForResult(new Intent(this, SearchWordActivity.class), APPCONST.REQUEST_SEARCH_WORD);
+            }, mBottomOutAnim.getDuration());
         }
         return super.onOptionsItemSelected(item);
     }
@@ -837,6 +847,13 @@ public class ReadActivity extends BaseActivity implements ColorPickerDialogListe
                     String zipPath = getPath(this, data.getData());
                     binding.readCustomizeLayoutMenu.zip2Layout(zipPath);
                     break;
+                case APPCONST.REQUEST_SEARCH_WORD:
+                    int chapterNum = data.getIntExtra("chapterNum", chapterPos);
+                    int countInChapter = data.getIntExtra("countInChapter", 0);
+                    String keyword = data.getStringExtra("keyword");
+                    if (!TextUtils.isEmpty(keyword))
+                        mPageLoader.skipToSearch(chapterNum, countInChapter, keyword);
+                    break;
             }
         }
         super.onActivityResult(requestCode, resultCode, data);
@@ -1876,7 +1893,6 @@ public class ReadActivity extends BaseActivity implements ColorPickerDialogListe
         cursorShow();
         //set current word selected
         binding.readPvContent.invalidate();
-
 //        hideSnackBar();
     }
 
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/activity/SearchBookActivity.java b/app/src/main/java/xyz/fycz/myreader/ui/activity/SearchBookActivity.java
index 3620e18..5573e8a 100644
--- a/app/src/main/java/xyz/fycz/myreader/ui/activity/SearchBookActivity.java
+++ b/app/src/main/java/xyz/fycz/myreader/ui/activity/SearchBookActivity.java
@@ -117,6 +117,18 @@ public class SearchBookActivity extends BaseActivity {
         getSupportActionBar().setTitle("搜索");
     }
 
+    @Override
+    public void onWindowFocusChanged(boolean hasFocus) {
+        super.onWindowFocusChanged(hasFocus);
+        if (hasFocus){
+            App.getHandler().postDelayed(() -> {
+                binding.etSearchKey.requestFocus();
+                InputMethodManager imm = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
+                imm.showSoftInput(binding.etSearchKey, InputMethodManager.SHOW_IMPLICIT);
+            }, 400);
+        }
+    }
+
     @Override
     protected void initData(Bundle savedInstanceState) {
         super.initData(savedInstanceState);
@@ -226,9 +238,6 @@ public class SearchBookActivity extends BaseActivity {
             search();
         });
         initHistoryList();
-        App.getHandler().postDelayed(() -> {
-            binding.etSearchKey.requestFocus();
-        }, 200);
     }
 
     @Override
@@ -625,6 +634,7 @@ public class SearchBookActivity extends BaseActivity {
     @Override
     protected void onDestroy() {
         stopSearch();
+        searchEngine.closeSearchEngine();
         super.onDestroy();
     }
 
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/activity/SearchWordActivity.kt b/app/src/main/java/xyz/fycz/myreader/ui/activity/SearchWordActivity.kt
new file mode 100644
index 0000000..6e2bb80
--- /dev/null
+++ b/app/src/main/java/xyz/fycz/myreader/ui/activity/SearchWordActivity.kt
@@ -0,0 +1,155 @@
+package xyz.fycz.myreader.ui.activity
+
+import android.os.Bundle
+import android.view.KeyEvent
+import android.view.View
+import android.view.inputmethod.EditorInfo
+import android.view.inputmethod.InputMethodManager
+import androidx.appcompat.widget.Toolbar
+import androidx.recyclerview.widget.LinearLayoutManager
+import org.jetbrains.anko.contentView
+import xyz.fycz.myreader.R
+import xyz.fycz.myreader.application.App
+import xyz.fycz.myreader.base.BaseActivity
+import xyz.fycz.myreader.base.BitIntentDataManager
+import xyz.fycz.myreader.base.adapter.BaseListAdapter
+import xyz.fycz.myreader.base.adapter.IViewHolder
+import xyz.fycz.myreader.base.adapter2.onClick
+import xyz.fycz.myreader.common.APPCONST
+import xyz.fycz.myreader.databinding.ActivitySearchWordBinding
+import xyz.fycz.myreader.entity.SearchWord1
+import xyz.fycz.myreader.greendao.entity.Book
+import xyz.fycz.myreader.greendao.entity.Chapter
+import xyz.fycz.myreader.model.SearchWordEngine
+import xyz.fycz.myreader.ui.adapter.holder.SearchWord1Holder
+import xyz.fycz.myreader.ui.adapter.holder.SearchWord2Holder
+import xyz.fycz.myreader.util.ToastUtils
+import xyz.fycz.myreader.widget.page.PageLoader
+
+/**
+ * @author fengyue
+ * @date 2021/12/5 19:57
+ */
+class SearchWordActivity : BaseActivity() {
+
+    private lateinit var binding: ActivitySearchWordBinding
+    private lateinit var book: Book
+    private lateinit var searchWordEngine: SearchWordEngine
+    private lateinit var adapter: BaseListAdapter<SearchWord1>
+
+    override fun bindView() {
+        binding = ActivitySearchWordBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+    }
+
+    override fun setUpToolbar(toolbar: Toolbar?) {
+        super.setUpToolbar(toolbar)
+        setStatusBarColor(R.color.colorPrimary, true)
+        supportActionBar?.title = getString(R.string.search_word)
+    }
+
+    override fun onWindowFocusChanged(hasFocus: Boolean) {
+        super.onWindowFocusChanged(hasFocus)
+        if (hasFocus) {
+            App.getHandler().postDelayed({
+                binding.etSearchKey.requestFocus()
+                val imm =
+                    getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager
+                imm.showSoftInput(
+                    binding.etSearchKey,
+                    InputMethodManager.SHOW_IMPLICIT
+                )
+            }, 400)
+        }
+    }
+
+    override fun initData(savedInstanceState: Bundle?) {
+        super.initData(savedInstanceState)
+        book = BitIntentDataManager.getInstance().getData(APPCONST.BOOK_KEY) as Book
+        val chapters =
+            BitIntentDataManager.getInstance().getData(APPCONST.CHAPTERS_KEY) as List<Chapter>
+        val pageLoader =
+            BitIntentDataManager.getInstance().getData(APPCONST.PAGE_LOADER_KEY) as PageLoader
+        searchWordEngine = SearchWordEngine(book, chapters, pageLoader)
+    }
+
+    override fun initWidget() {
+        //enter事件
+        binding.etSearchKey.setOnEditorActionListener { _, i, keyEvent ->
+            if (i == EditorInfo.IME_ACTION_UNSPECIFIED) {
+                search()
+                return@setOnEditorActionListener keyEvent.keyCode == KeyEvent.KEYCODE_ENTER
+            }
+            false
+        }
+        searchWordEngine.setOnSearchListener(object : SearchWordEngine.OnSearchListener {
+            override fun loadFinish(isEmpty: Boolean) {
+                binding.fabSearchStop.visibility = View.GONE
+                binding.rpb.isAutoLoading = false
+            }
+
+            @Synchronized
+            override fun loadMore(item: SearchWord1) {
+                if (adapter.itemSize == 0) {
+                    adapter.addItem(item)
+                } else {
+                    for ((index, searchWord1) in adapter.items.withIndex()) {
+                        if (index == 0 && item.chapterNum < searchWord1.chapterNum) {
+                            adapter.addItem(0, item)
+                            break
+                        } else if (item.chapterNum >= searchWord1.chapterNum &&
+                            item.chapterNum < adapter.items[index + 1].chapterNum
+                        ) {
+                            adapter.addItem(index + 1, item)
+                            break
+                        } else if (index == adapter.itemSize - 1) {
+                            adapter.addItem(item)
+                            break
+                        }
+                    }
+                }
+            }
+
+        })
+        adapter = object : BaseListAdapter<SearchWord1>() {
+            override fun createViewHolder(viewType: Int): IViewHolder<SearchWord1> {
+                return SearchWord1Holder(this@SearchWordActivity)
+            }
+        }
+        binding.rvSearchWord1.layoutManager = LinearLayoutManager(this)
+        binding.rvSearchWord1.adapter = adapter
+    }
+
+    override fun initClick() {
+        binding.tvSearchConform.onClick { search() }
+        binding.fabSearchStop.onClick { stopSearch() }
+    }
+
+    private fun search() {
+        val keyword = binding.etSearchKey.text.toString()
+        if (keyword.isNotEmpty()) {
+            adapter.clear()
+            binding.fabSearchStop.visibility = View.VISIBLE
+            binding.rpb.isAutoLoading = true
+            searchWordEngine.search(keyword)
+            //收起软键盘
+            val imm = getSystemService(INPUT_METHOD_SERVICE) as InputMethodManager
+            imm.hideSoftInputFromWindow(
+                binding.etSearchKey.windowToken,
+                InputMethodManager.HIDE_NOT_ALWAYS
+            )
+        }
+    }
+
+    private fun stopSearch() {
+        binding.fabSearchStop.visibility = View.GONE
+        binding.rpb.isAutoLoading = false
+        searchWordEngine.stopSearch()
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        searchWordEngine.stopSearch()
+        searchWordEngine.closeSearchEngine()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/adapter/SearchAdapter.kt b/app/src/main/java/xyz/fycz/myreader/ui/adapter/SearchAdapter.kt
index 425fb48..cc03d2d 100644
--- a/app/src/main/java/xyz/fycz/myreader/ui/adapter/SearchAdapter.kt
+++ b/app/src/main/java/xyz/fycz/myreader/ui/adapter/SearchAdapter.kt
@@ -14,7 +14,7 @@ import xyz.fycz.myreader.application.SysManager
 import xyz.fycz.myreader.base.BitIntentDataManager
 import xyz.fycz.myreader.base.adapter2.DiffRecyclerAdapter
 import xyz.fycz.myreader.base.adapter2.ItemViewHolder
-import xyz.fycz.myreader.databinding.SearchBookItemBinding
+import xyz.fycz.myreader.databinding.ItemSearchBookBinding
 import xyz.fycz.myreader.entity.SearchBookBean
 import xyz.fycz.myreader.greendao.entity.Book
 import xyz.fycz.myreader.model.mulvalmap.ConMVMap
@@ -32,7 +32,7 @@ import xyz.fycz.myreader.util.utils.StringUtils
 class SearchAdapter(
     context: Context,
     val keyword: String
-) : DiffRecyclerAdapter<SearchBookBean, SearchBookItemBinding>(context) {
+) : DiffRecyclerAdapter<SearchBookBean, ItemSearchBookBinding>(context) {
     private val mBooks: ConMVMap<SearchBookBean, Book> = ConMVMap()
     private lateinit var mList: List<SearchBookBean>
     private val tagList: MutableList<String> = ArrayList()
@@ -79,13 +79,13 @@ class SearchAdapter(
             }
         }
 
-    override fun getViewBinding(parent: ViewGroup): SearchBookItemBinding {
-        return SearchBookItemBinding.inflate(inflater, parent, false)
+    override fun getViewBinding(parent: ViewGroup): ItemSearchBookBinding {
+        return ItemSearchBookBinding.inflate(inflater, parent, false)
     }
 
     override fun convert(
         holder: ItemViewHolder,
-        binding: SearchBookItemBinding,
+        binding: ItemSearchBookBinding,
         item: SearchBookBean,
         payloads: MutableList<Any>
     ) {
@@ -99,7 +99,7 @@ class SearchAdapter(
         }
     }
 
-    private fun bind(binding: SearchBookItemBinding, data: SearchBookBean) {
+    private fun bind(binding: ItemSearchBookBinding, data: SearchBookBean) {
         var aBooks = mBooks.getValues(data)
         if (aBooks == null || aBooks.size == 0) {
             aBooks = ArrayList()
@@ -124,7 +124,7 @@ class SearchAdapter(
         }
     }
 
-    private fun bindChange(binding: SearchBookItemBinding, data: SearchBookBean, payload: Bundle) {
+    private fun bindChange(binding: ItemSearchBookBinding, data: SearchBookBean, payload: Bundle) {
         binding.run {
             initTagList(this, data)
             payload.keySet().forEach {
@@ -146,7 +146,7 @@ class SearchAdapter(
         }
     }
 
-    private fun initTagList(binding: SearchBookItemBinding, data: SearchBookBean) {
+    private fun initTagList(binding: ItemSearchBookBinding, data: SearchBookBean) {
         tagList.clear()
         val type = data.type
         if (!type.isNullOrEmpty()){
@@ -166,7 +166,7 @@ class SearchAdapter(
         }
     }
 
-    private fun upLast(binding: SearchBookItemBinding, lastChapter: String?) {
+    private fun upLast(binding: ItemSearchBookBinding, lastChapter: String?) {
         binding.run {
             if (lastChapter.isNullOrEmpty()) {
                 tvBookNewestChapter.visibility = View.GONE
@@ -180,7 +180,7 @@ class SearchAdapter(
         }
     }
 
-    override fun registerListener(holder: ItemViewHolder, binding: SearchBookItemBinding) {
+    override fun registerListener(holder: ItemViewHolder, binding: ItemSearchBookBinding) {
         binding.root.setOnClickListener {
             getItem(holder.layoutPosition)?.let {
                 val books = mBooks.getValues(it)
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/FindBookHolder.java b/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/FindBookHolder.java
index 7861583..7ac5f23 100644
--- a/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/FindBookHolder.java
+++ b/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/FindBookHolder.java
@@ -50,7 +50,7 @@ public class FindBookHolder extends ViewHolderImpl<Book> {
 
     @Override
     protected int getItemLayoutId() {
-        return R.layout.search_book_item;
+        return R.layout.item_search_book;
     }
 
     @Override
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchBookHolder.java b/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchBookHolder.java
index 83a098f..56f1b3c 100644
--- a/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchBookHolder.java
+++ b/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchBookHolder.java
@@ -60,7 +60,7 @@ public class SearchBookHolder extends ViewHolderImpl<SearchBookBean> {
 
     @Override
     protected int getItemLayoutId() {
-        return R.layout.search_book_item;
+        return R.layout.item_search_book;
     }
 
     @Override
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchWord1Holder.kt b/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchWord1Holder.kt
new file mode 100644
index 0000000..63cc301
--- /dev/null
+++ b/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchWord1Holder.kt
@@ -0,0 +1,56 @@
+package xyz.fycz.myreader.ui.adapter.holder
+
+import android.app.Activity
+import android.content.Intent
+import android.view.View
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import xyz.fycz.myreader.R
+import xyz.fycz.myreader.base.adapter.BaseListAdapter
+import xyz.fycz.myreader.base.adapter.IViewHolder
+import xyz.fycz.myreader.base.adapter.ViewHolderImpl
+import xyz.fycz.myreader.entity.SearchWord1
+import xyz.fycz.myreader.entity.SearchWord2
+
+/**
+ * @author fengyue
+ * @date 2021/12/5 20:28
+ */
+class SearchWord1Holder(var activity: AppCompatActivity) : ViewHolderImpl<SearchWord1>() {
+
+    private lateinit var tvChapterTitle: TextView
+    private lateinit var rvWordList: RecyclerView
+    private lateinit var adapter: BaseListAdapter<SearchWord2>
+
+    override fun getItemLayoutId(): Int {
+        return R.layout.item_search_word1
+    }
+
+    override fun initView() {
+        tvChapterTitle = findById(R.id.tv_chapter_title)
+        rvWordList = findById(R.id.rv_search_word2)
+    }
+
+    override fun onBind(holder: RecyclerView.ViewHolder?, data: SearchWord1?, pos: Int) {
+        tvChapterTitle.text = data?.chapterTitle
+        adapter = object : BaseListAdapter<SearchWord2>() {
+            override fun createViewHolder(viewType: Int): IViewHolder<SearchWord2> {
+                return SearchWord2Holder()
+            }
+        }
+        rvWordList.layoutManager = LinearLayoutManager(context)
+        rvWordList.adapter = adapter
+        adapter.refreshItems(data?.searchWord2List)
+        adapter.setOnItemClickListener { _, pos1 ->
+            val searchWord2 = adapter.getItem(pos1)
+            val intent = Intent()
+            intent.putExtra("chapterNum", searchWord2.chapterNum)
+            intent.putExtra("countInChapter", searchWord2.count)
+            intent.putExtra("keyword", searchWord2.keyword)
+            activity.setResult(Activity.RESULT_OK, intent)
+            activity.finish()
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchWord2Holder.kt b/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchWord2Holder.kt
new file mode 100644
index 0000000..dedc263
--- /dev/null
+++ b/app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SearchWord2Holder.kt
@@ -0,0 +1,37 @@
+package xyz.fycz.myreader.ui.adapter.holder
+
+import android.graphics.Color
+import android.text.SpannableString
+import android.text.Spanned
+import android.text.style.ForegroundColorSpan
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+import xyz.fycz.myreader.R
+import xyz.fycz.myreader.base.adapter.ViewHolderImpl
+import xyz.fycz.myreader.entity.SearchWord2
+
+/**
+ * @author fengyue
+ * @date 2021/12/5 20:46
+ */
+class SearchWord2Holder : ViewHolderImpl<SearchWord2>() {
+
+    private lateinit var tvSearchWord: TextView
+
+    override fun getItemLayoutId(): Int {
+        return R.layout.item_search_word2
+    }
+
+    override fun initView() {
+        tvSearchWord = findById(R.id.tv_search_word)
+    }
+
+    override fun onBind(holder: RecyclerView.ViewHolder, data: SearchWord2, pos: Int) {
+        val spannableString = SpannableString(data.dataStr)
+        spannableString.setSpan(
+            ForegroundColorSpan(Color.RED),
+            data.dataIndex, data.dataIndex + data.keyword.length, Spanned.SPAN_INCLUSIVE_EXCLUSIVE
+        )
+        tvSearchWord.text = spannableString
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/xyz/fycz/myreader/ui/fragment/DIYSourceFragment.java b/app/src/main/java/xyz/fycz/myreader/ui/fragment/DIYSourceFragment.java
index 613a3d7..c985c50 100644
--- a/app/src/main/java/xyz/fycz/myreader/ui/fragment/DIYSourceFragment.java
+++ b/app/src/main/java/xyz/fycz/myreader/ui/fragment/DIYSourceFragment.java
@@ -16,6 +16,7 @@ import android.webkit.MimeTypeMap;
 import android.widget.PopupMenu;
 
 import androidx.annotation.Nullable;
+import androidx.documentfile.provider.DocumentFile;
 import androidx.recyclerview.widget.ItemTouchHelper;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
@@ -299,6 +300,7 @@ public class DIYSourceFragment extends BaseFragment {
             public void onSubscribe(Disposable d) {
                 addDisposable(d);
             }
+
             @Override
             public void onSuccess(@NonNull List<BookSource> sources) {
                 mBookSources = sources;
@@ -324,6 +326,11 @@ public class DIYSourceFragment extends BaseFragment {
                 dialog.show();
                 Single.create((SingleOnSubscribe<String>) emitter -> {
 //                    String json = FileUtils.readInStream(DocumentUtil.getFileInputSteam(getContext(), data.getData()));
+                    DocumentFile file = DocumentFile.fromSingleUri(getContext(), data.getData());
+                    if (!file.getName().endsWith(".txt") && !file.getType().equals(".json")) {
+                        emitter.onError(new Throwable("文件格式错误"));
+                        return;
+                    }
                     String json = new String(DocumentUtil.readBytes(getContext(), data.getData()), StandardCharsets.UTF_8);
                     emitter.onSuccess(json);
                 }).compose(RxUtils::toSimpleSingle).subscribe(new MySingleObserver<String>() {
@@ -341,7 +348,7 @@ public class DIYSourceFragment extends BaseFragment {
 
                     @Override
                     public void onError(Throwable e) {
-                        ToastUtils.showError("文件读取失败");
+                        ToastUtils.showError("文件读取失败\n" + e.getLocalizedMessage());
                         dialog.dismiss();
                     }
                 });
@@ -435,6 +442,7 @@ public class DIYSourceFragment extends BaseFragment {
                 public void onSubscribe(Disposable d) {
                     addDisposable(d);
                 }
+
                 @Override
                 public void onSuccess(@NonNull Boolean aBoolean) {
                     if (aBoolean) {
@@ -466,6 +474,7 @@ public class DIYSourceFragment extends BaseFragment {
                 public void onSubscribe(Disposable d) {
                     addDisposable(d);
                 }
+
                 @Override
                 public void onSuccess(@NonNull File share) {
                     ShareUtils.share(sourceActivity, share, "书源分享", "text/plain");
diff --git a/app/src/main/java/xyz/fycz/myreader/util/help/ChapterContentHelp.java b/app/src/main/java/xyz/fycz/myreader/util/help/ChapterContentHelp.java
index b3e79d6..bfe9849 100644
--- a/app/src/main/java/xyz/fycz/myreader/util/help/ChapterContentHelp.java
+++ b/app/src/main/java/xyz/fycz/myreader/util/help/ChapterContentHelp.java
@@ -1291,6 +1291,7 @@ public class ChapterContentHelp {
     private boolean isUseTo(String useTo, String bookTag, String bookSource) {
         String[] useTos = useTo.split(";");
         return useTo.length() <= 1
+                || TextUtils.isEmpty(useTo)
                 || TextUtils.isEmpty(useTos[0])
                 || TextUtils.isEmpty(useTos[1])
                 || useTo.contains(bookTag)
diff --git a/app/src/main/java/xyz/fycz/myreader/util/utils/KeyWordUtils.java b/app/src/main/java/xyz/fycz/myreader/util/utils/KeyWordUtils.java
index 2f425b5..0ac9f4e 100644
--- a/app/src/main/java/xyz/fycz/myreader/util/utils/KeyWordUtils.java
+++ b/app/src/main/java/xyz/fycz/myreader/util/utils/KeyWordUtils.java
@@ -13,15 +13,18 @@ import android.widget.TextView;
 public class KeyWordUtils {
 
     public static void setKeyWord(TextView textView, String str, String keyWord){
+        setKeyWord(textView, str, keyWord, Color.RED);
+    }
+
+    public static void setKeyWord(TextView textView, String str, String keyWord, int colorId){
         int start = str.indexOf(keyWord);
         if (start == -1){
             textView.setText(str);
         }else {
             SpannableString spannableString = new SpannableString(str);
-            spannableString.setSpan(new ForegroundColorSpan(Color.RED),
+            spannableString.setSpan(new ForegroundColorSpan(colorId),
                     start, start + keyWord.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
             textView.setText(spannableString);
         }
     }
-
 }
diff --git a/app/src/main/java/xyz/fycz/myreader/widget/RefreshProgressBar.java b/app/src/main/java/xyz/fycz/myreader/widget/RefreshProgressBar.java
index 155b9f7..a4fa146 100644
--- a/app/src/main/java/xyz/fycz/myreader/widget/RefreshProgressBar.java
+++ b/app/src/main/java/xyz/fycz/myreader/widget/RefreshProgressBar.java
@@ -20,7 +20,7 @@ public class RefreshProgressBar extends View {
     private int bgColor = 0x00000000;
     private int secondColor = 0xFFC1C1C1;
     private int fontColor = 0xFF363636;
-    private int speed = 1;
+    private int speed = 2;
     private int secondFinalProgress = 0;
     private Paint paint;
     private Boolean isAutoLoading = false;
diff --git a/app/src/main/java/xyz/fycz/myreader/widget/page/EpubPageLoader.java b/app/src/main/java/xyz/fycz/myreader/widget/page/EpubPageLoader.java
index f560519..ba978f4 100644
--- a/app/src/main/java/xyz/fycz/myreader/widget/page/EpubPageLoader.java
+++ b/app/src/main/java/xyz/fycz/myreader/widget/page/EpubPageLoader.java
@@ -279,7 +279,7 @@ public class EpubPageLoader extends PageLoader {
     }
 
     @Override
-    protected String getChapterReader(Chapter chapter) throws Exception {
+    public String getChapterReader(Chapter chapter) throws Exception {
         Log.d("getChapterReader", chapter.getTitle());
         /*byte[] content = getChapterContent(chapter).getBytes();
         ByteArrayInputStream bais = new ByteArrayInputStream(content);
diff --git a/app/src/main/java/xyz/fycz/myreader/widget/page/LocalPageLoader.java b/app/src/main/java/xyz/fycz/myreader/widget/page/LocalPageLoader.java
index c45bf7d..8a7b3a5 100644
--- a/app/src/main/java/xyz/fycz/myreader/widget/page/LocalPageLoader.java
+++ b/app/src/main/java/xyz/fycz/myreader/widget/page/LocalPageLoader.java
@@ -370,9 +370,8 @@ public class LocalPageLoader extends PageLoader {
 
 
     @Override
-    protected String getChapterReader(Chapter chapter) throws Exception {
+    public String getChapterReader(Chapter chapter) throws Exception {
         if (chapter.getEnd() > 0) {
-            Log.d("getChapterReader", chapter.getTitle());
             //从文件中获取数据
             /*byte[] content = getContent(chapter);
             ByteArrayInputStream bais = new ByteArrayInputStream(content);
diff --git a/app/src/main/java/xyz/fycz/myreader/widget/page/NetPageLoader.java b/app/src/main/java/xyz/fycz/myreader/widget/page/NetPageLoader.java
index c7723b4..6974317 100644
--- a/app/src/main/java/xyz/fycz/myreader/widget/page/NetPageLoader.java
+++ b/app/src/main/java/xyz/fycz/myreader/widget/page/NetPageLoader.java
@@ -102,7 +102,7 @@ public class NetPageLoader extends PageLoader {
     }
 
     @Override
-    protected String getChapterReader(Chapter chapter) throws FileNotFoundException {
+    public String getChapterReader(Chapter chapter) throws FileNotFoundException {
         /*File file = new File(APPCONST.BOOK_CACHE_PATH + mCollBook.getId()
                 + File.separator + chapter.getTitle() + FileUtils.SUFFIX_FY);
         if (!file.exists()) return null;
diff --git a/app/src/main/java/xyz/fycz/myreader/widget/page/PageLoader.java b/app/src/main/java/xyz/fycz/myreader/widget/page/PageLoader.java
index f6a0808..ff91e9d 100644
--- a/app/src/main/java/xyz/fycz/myreader/widget/page/PageLoader.java
+++ b/app/src/main/java/xyz/fycz/myreader/widget/page/PageLoader.java
@@ -168,7 +168,7 @@ public abstract class PageLoader {
     private int readAloudParagraph = -1; //正在朗读章节
 
     private Bitmap bgBitmap;
-    private ChapterContentHelp contentHelper = new ChapterContentHelp();
+    public ChapterContentHelp contentHelper = new ChapterContentHelp();
 
     protected Disposable mChapterDis = null;
 
@@ -863,7 +863,7 @@ public abstract class PageLoader {
      * @param chapter
      * @return
      */
-    protected abstract String getChapterReader(Chapter chapter) throws Exception;
+    public abstract String getChapterReader(Chapter chapter) throws Exception;
 
     /**
      * 章节数据是否存在
@@ -2126,6 +2126,88 @@ public abstract class PageLoader {
         return null;
     }
 
+    public void skipToSearch(int chapterNum, int countInChapter, String keyword) {
+        skipToChapter(chapterNum);
+        int[] position = searchWordPositions(countInChapter, keyword);
+        skipToPage(position[0]);
+        mPageView.setFirstSelectTxtChar(mCurPage.txtLists.get(position[1]).
+                getCharsData().get(position[2]));
+        switch (position[3]) {
+            case 0:
+                mPageView.setLastSelectTxtChar(mCurPage.txtLists.get(position[1]).
+                        getCharsData().get(position[2] + keyword.length() - 1));
+                break;
+            case 1:
+                mPageView.setLastSelectTxtChar(mCurPage.txtLists.get(position[1] + 1).
+                        getCharsData().get(position[4]));
+                break;
+            case -1:
+                mPageView.setLastSelectTxtChar(mCurPage.txtLists.get(mCurPage.txtLists.size() - 1).
+                        getCharsData().get(mCurPage.txtLists.get(mCurPage.txtLists.size() - 1).
+                        getCharsData().size() - 1));
+                break;
+        }
+        mPageView.setSelectMode(PageView.SelectMode.SelectMoveForward);
+        mPageView.invalidate();
+    }
+
+    private int[] searchWordPositions(int countInChapter, String keyword) {
+        List<TxtPage> pages = mCurChapter.getTxtPageList();
+        // calculate search result's pageIndex
+        StringBuilder sb = new StringBuilder();
+        for (TxtPage page : pages) {
+            sb.append(page.getContent());
+        }
+        String content = sb.toString();
+        int count = 0;
+        int index = content.indexOf(keyword);
+        while (count != countInChapter) {
+            index = content.indexOf(keyword, index + 1);
+            count++;
+        }
+        int contentPosition = index;
+        int pageIndex = 0;
+        int length = mCurChapter.getPageLength(pageIndex);
+        while (length < contentPosition) {
+            pageIndex++;
+            if (pageIndex > pages.size()) {
+                pageIndex = pages.size();
+                break;
+            }
+            length = mCurChapter.getPageLength(pageIndex);
+        }
+        // calculate search word's lineIndex
+        TxtPage currentPage = pages.get(pageIndex);
+        int lineIndex = 0;
+        length = length - currentPage.getContent().length() + currentPage.lines.get(lineIndex).length();
+        while (length < contentPosition) {
+            lineIndex += 1;
+            if (lineIndex > currentPage.lines.size()) {
+                lineIndex = currentPage.lines.size();
+                break;
+            }
+            length += currentPage.lines.get(lineIndex).length();
+        }
+
+        // charIndex
+        String currentLine = currentPage.lines.get(lineIndex);
+        currentLine = StringUtils.trim(currentLine);
+        length -= currentLine.length();
+        int charIndex = contentPosition - length;
+        int addLine = 0;
+        int charIndex2 = 0;
+        // change line
+        if ((charIndex + keyword.length()) > currentLine.length()) {
+            addLine = 1;
+            charIndex2 = charIndex + keyword.length() - currentLine.length() - 1;
+        }
+        // changePage
+        if ((lineIndex + addLine + 1) > currentPage.lines.size()) {
+            addLine = -1;
+            charIndex2 = charIndex + keyword.length() - currentLine.length() - 1;
+        }
+        return new int[]{pageIndex, lineIndex, charIndex, addLine, charIndex2};
+    }
 
     public boolean isPrev() {
         return isPrev;
diff --git a/app/src/main/java/xyz/fycz/myreader/widget/page/TxtChapter.java b/app/src/main/java/xyz/fycz/myreader/widget/page/TxtChapter.java
index f31319e..8614076 100644
--- a/app/src/main/java/xyz/fycz/myreader/widget/page/TxtChapter.java
+++ b/app/src/main/java/xyz/fycz/myreader/widget/page/TxtChapter.java
@@ -8,7 +8,7 @@ import java.util.List;
  * 书籍chapter
  */
 
-public class TxtChapter{
+public class TxtChapter {
 
     private int position;
     private List<TxtPage> txtPageList = new ArrayList<>();
diff --git a/app/src/main/res/drawable/ic_search_word.xml b/app/src/main/res/drawable/ic_search_word.xml
new file mode 100644
index 0000000..a3879b3
--- /dev/null
+++ b/app/src/main/res/drawable/ic_search_word.xml
@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="1024"
+    android:viewportHeight="1024">
+  <path
+      android:pathData="M602.3,603.46c9.09,-7.68 33.73,4.93 55.04,28.1l270.14,293.12c21.31,23.17 23.04,54.91 3.97,70.98 -19.2,16 -50.11,8.77 -69.25,-16.19L620.48,662.4c-19.07,-24.96 -27.2,-51.46 -18.18,-59.01z"
+      android:fillColor="#FFFFFF"/>
+  <path
+      android:pathData="M560,633.47a288,288 0,1 0,-288 -498.82,288 288,0 0,0 288,498.82zM592,688.9a352,352 0,1 1,-352 -609.66,352 352,0 0,1 352,609.66z"
+      android:fillColor="#FFFFFF"/>
+</vector>
diff --git a/app/src/main/res/layout/activity_search_book.xml b/app/src/main/res/layout/activity_search_book.xml
index 7ce1983..41a1334 100644
--- a/app/src/main/res/layout/activity_search_book.xml
+++ b/app/src/main/res/layout/activity_search_book.xml
@@ -27,9 +27,9 @@
             android:layout_height="35dp"
             android:layout_weight="2"
             android:background="@drawable/search_et_backcolor"
-            android:hint="输入关键词"
+            android:hint="@string/input_keyword"
             android:imeOptions="actionSearch"
-            android:paddingLeft="10dp"
+            android:paddingStart="10dp"
             android:textColor="@color/textPrimary" />
 
 
@@ -40,7 +40,7 @@
             android:layout_weight="8"
             android:background="@drawable/search_btn_backcolor"
             android:gravity="center"
-            android:text="搜索"
+            android:text="@string/common_search"
             android:textColor="@color/textPrimaryInverted"
             android:textSize="18sp" />
     </LinearLayout>
@@ -235,7 +235,8 @@
             android:visibility="gone"
             app:elevation="5dp"
             app:fabSize="mini"
-            app:layout_anchorGravity="right|bottom" />
+            app:layout_anchorGravity="right|bottom"
+            android:contentDescription="@string/stop" />
     </RelativeLayout>
 </LinearLayout>
 
diff --git a/app/src/main/res/layout/activity_search_word.xml b/app/src/main/res/layout/activity_search_word.xml
new file mode 100644
index 0000000..ab3740c
--- /dev/null
+++ b/app/src/main/res/layout/activity_search_word.xml
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <include layout="@layout/toolbar" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="60dp"
+        android:gravity="center"
+        android:orientation="horizontal"
+        android:paddingLeft="15dp"
+        android:paddingTop="10dp"
+        android:paddingRight="15dp"
+        android:paddingBottom="10dp">
+
+        <androidx.appcompat.widget.AppCompatEditText
+            android:id="@+id/et_search_key"
+            android:layout_width="match_parent"
+            android:layout_height="35dp"
+            android:layout_weight="2"
+            android:background="@drawable/search_et_backcolor"
+            android:hint="@string/search_word_tip"
+            android:imeOptions="actionSearch"
+            android:paddingStart="10dp"
+            android:textColor="@color/textPrimary" />
+
+
+        <TextView
+            android:id="@+id/tv_search_conform"
+            android:layout_width="match_parent"
+            android:layout_height="35dp"
+            android:layout_weight="8"
+            android:background="@drawable/search_btn_backcolor"
+            android:gravity="center"
+            android:text="@string/common_search"
+            android:textColor="@color/textPrimaryInverted"
+            android:textSize="18sp" />
+    </LinearLayout>
+
+    <xyz.fycz.myreader.widget.RefreshProgressBar
+        android:id="@+id/rpb"
+        android:layout_width="match_parent"
+        android:layout_height="3dp"
+        android:visibility="visible" />
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <xyz.fycz.myreader.widget.scroller.FastScrollRecyclerView
+            android:id="@+id/rv_search_word1"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:paddingHorizontal="10dp"
+            tools:ignore="SpeakableTextPresentCheck" />
+
+        <com.google.android.material.floatingactionbutton.FloatingActionButton
+            android:id="@+id/fabSearchStop"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignParentEnd="true"
+            android:layout_alignParentBottom="true"
+            android:layout_marginEnd="30dp"
+            android:layout_marginBottom="30dp"
+            android:src="@drawable/ic_stop_black_24dp"
+            android:visibility="gone"
+            app:elevation="5dp"
+            app:fabSize="mini"
+            app:layout_anchorGravity="right|bottom"
+            android:contentDescription="@string/stop" />
+    </RelativeLayout>
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/dialog_textview.xml b/app/src/main/res/layout/dialog_textview.xml
index 5a99ad5..3665ada 100644
--- a/app/src/main/res/layout/dialog_textview.xml
+++ b/app/src/main/res/layout/dialog_textview.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <TextView
-    android:id="@+id/text_view"
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/text_view"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:textColor="@color/textPrimary"
diff --git a/app/src/main/res/layout/search_book_item.xml b/app/src/main/res/layout/item_search_book.xml
similarity index 100%
rename from app/src/main/res/layout/search_book_item.xml
rename to app/src/main/res/layout/item_search_book.xml
diff --git a/app/src/main/res/layout/item_search_word1.xml b/app/src/main/res/layout/item_search_word1.xml
new file mode 100644
index 0000000..50a96f4
--- /dev/null
+++ b/app/src/main/res/layout/item_search_word1.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:paddingBottom="10dp"
+    android:orientation="vertical">
+
+    <androidx.appcompat.widget.AppCompatTextView
+        android:id="@+id/tv_chapter_title"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingVertical="5dp"
+        android:text="@string/app_name"
+        android:textColor="@color/textSecondary"
+        android:textSize="@dimen/text_normal_size" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/rv_search_word2"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/item_search_word2.xml b/app/src/main/res/layout/item_search_word2.xml
new file mode 100644
index 0000000..685c844
--- /dev/null
+++ b/app/src/main/res/layout/item_search_word2.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
+
+    <androidx.appcompat.widget.AppCompatTextView
+        android:id="@+id/tv_search_word"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textColor="@color/textPrimary"
+        android:paddingVertical="10dp"
+        android:textSize="@dimen/text_normal_size"
+        android:text="@string/app_name"/>
+
+    <View
+        android:layout_width="fill_parent"
+        android:layout_height="0.5dp"
+        android:background="@color/sys_window_back" />
+</LinearLayout>
diff --git a/app/src/main/res/menu/menu_read.xml b/app/src/main/res/menu/menu_read.xml
index cae05c8..ce74053 100644
--- a/app/src/main/res/menu/menu_read.xml
+++ b/app/src/main/res/menu/menu_read.xml
@@ -1,35 +1,36 @@
 <?xml version ="1.0" encoding ="utf-8"?>
-<menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"
-      android:layout_width="match_parent"
-      android:layout_height="match_parent">
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
 
     <item
-            android:id="@+id/action_change_source"
-            android:icon="@drawable/ic_change"
-            android:title="@string/menu_change_source"
-            app:showAsAction="ifRoom"/>
+        android:id="@+id/action_change_source"
+        android:icon="@drawable/ic_change"
+        android:title="@string/menu_change_source"
+        app:showAsAction="ifRoom" />
     <item
-            android:id="@+id/action_reload"
-            android:icon="@drawable/ic_refresh"
-            android:title="@string/menu_reload"
-            app:showAsAction="ifRoom"/>
+        android:id="@+id/action_reload"
+        android:icon="@drawable/ic_refresh"
+        android:title="@string/menu_reload"
+        app:showAsAction="ifRoom" />
 
     <group android:id="@+id/action_load_finish">
         <item
             android:id="@+id/action_download"
             android:icon="@drawable/ic_download"
             android:title="@string/download_book"
-            app:showAsAction="always"/>
+            app:showAsAction="always" />
         <item
-                android:id="@+id/action_add_bookmark"
-                android:icon="@drawable/ic_bookmark"
-                android:title="@string/menu_add_bookmark"
-                app:showAsAction="never"/>
+            android:id="@+id/action_add_bookmark"
+            android:icon="@drawable/ic_bookmark"
+            android:title="@string/menu_add_bookmark"
+            app:showAsAction="never" />
         <item
             android:id="@+id/action_replace_content"
             android:icon="@drawable/ic_replace"
             android:title="@string/content_replace"
-            app:showAsAction="never"/>
+            app:showAsAction="never" />
 
         <item
             android:id="@+id/action_re_seg"
@@ -40,20 +41,28 @@
             app:showAsAction="never" />
 
         <item
-                android:id="@+id/action_copy_content"
-                android:icon="@drawable/ic_copy"
-                android:title="@string/menu_copy_content"
-                app:showAsAction="never"/>
+            android:id="@+id/action_copy_content"
+            android:icon="@drawable/ic_copy"
+            android:title="@string/menu_copy_content"
+            app:showAsAction="never" />
+        <item
+            android:id="@+id/action_search"
+            android:icon="@drawable/ic_search_word"
+            android:title="@string/search_word"
+            app:showAsAction="never" />
         <item
-                android:id="@+id/action_open_link"
-                android:icon="@drawable/ic_link"
-                android:title="@string/menu_open_link"
-                app:showAsAction="never"/>
+            android:id="@+id/action_open_link"
+            android:icon="@drawable/ic_link"
+            android:title="@string/menu_open_link"
+            app:showAsAction="never" />
+
     </group>
 
     <item
         android:id="@+id/action_edit_source"
         android:icon="@drawable/ic_source"
         android:title="@string/book_source"
-        app:showAsAction="ifRoom"/>
+        app:showAsAction="ifRoom" />
+
+
 </menu>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 15c593b..b41b097 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -511,6 +511,9 @@
     <string name="book_group">书籍分组</string>
     <string name="book_group_tip">在书架内显示书籍分组</string>
     <string name="book_word_count">计算字数(实验)</string>
+    <string name="input_keyword">输入关键词</string>
+    <string name="search_word">内容搜索</string>
+    <string name="search_word_tip">搜索书籍已缓存的内容</string>
 
 
     <string-array name="reset_screen_time">
diff --git a/app/version_code.properties b/app/version_code.properties
index 5b25276..0f63650 100644
--- a/app/version_code.properties
+++ b/app/version_code.properties
@@ -1,3 +1,3 @@
 #Fri Jun 18 21:45:31 CST 2021
-VERSION_CODE=223
-NEED_CREATE_RELEASE=true
+VERSION_CODE=224
+NEED_CREATE_RELEASE=false