diff --git a/app/src/main/assets/litepal.xml b/app/src/main/assets/litepal.xml
index e2e2dc6..486ab39 100644
--- a/app/src/main/assets/litepal.xml
+++ b/app/src/main/assets/litepal.xml
@@ -2,7 +2,7 @@
 <litepal>
     <dbname value="readDb" />
 
-    <version value="8" />
+    <version value="9" />
 
     <list>
         <!--搜索记录表-->
diff --git a/app/src/main/java/com/novel/read/activity/NovelBookTypeListActivity.kt b/app/src/main/java/com/novel/read/activity/NovelBookTypeListActivity.kt
index 8c8b471..1ce4a2a 100644
--- a/app/src/main/java/com/novel/read/activity/NovelBookTypeListActivity.kt
+++ b/app/src/main/java/com/novel/read/activity/NovelBookTypeListActivity.kt
@@ -58,7 +58,7 @@ class NovelBookTypeListActivity : NovelBaseActivity() {
         refresh.setOnReloadingListener { this.getData() }
         getData()
         toolbar.title = mTitle
-        toolbar.setNavigationOnClickListener { view -> finish() }
+        toolbar.setNavigationOnClickListener { finish() }
 
     }
 
diff --git a/app/src/main/java/com/novel/read/fragment/BookFragment.kt b/app/src/main/java/com/novel/read/fragment/BookFragment.kt
index bf8522d..0202933 100644
--- a/app/src/main/java/com/novel/read/fragment/BookFragment.kt
+++ b/app/src/main/java/com/novel/read/fragment/BookFragment.kt
@@ -121,12 +121,12 @@ class BookFragment : NovelBaseFragment() {
             }
             true
         }
-        tv_cancel.setOnClickListener { view ->
+        tv_cancel.setOnClickListener {
             EventManager.instance.postEvent(HideBottomBarEvent(false))
             updateBook(UpdateBookEvent())
         }
 
-        tv_delete.setOnClickListener { view ->
+        tv_delete.setOnClickListener {
             val deleteList = mAdapter.selectList
             for (i in deleteList.indices) {
                 if (deleteList[i].isSaved) {
@@ -140,7 +140,7 @@ class BookFragment : NovelBaseFragment() {
             updateBook(UpdateBookEvent())
         }
 
-        mAdapter.setOnItemClickListener { view, pos ->
+        mAdapter.setOnItemClickListener { _, _ ->
             EventManager.instance.postEvent(
                 SwitchFragmentEvent()
             )
diff --git a/app/src/main/java/com/novel/read/fragment/MoreFragment.kt b/app/src/main/java/com/novel/read/fragment/MoreFragment.kt
index d801135..1b55bb8 100644
--- a/app/src/main/java/com/novel/read/fragment/MoreFragment.kt
+++ b/app/src/main/java/com/novel/read/fragment/MoreFragment.kt
@@ -101,7 +101,6 @@ class MoreFragment : NovelBaseFragment() {
             fragment.arguments = args
             return fragment
         }
-
     }
 
     override fun onDestroy() {
diff --git a/app/src/main/java/com/novel/read/http/AccountManager.kt b/app/src/main/java/com/novel/read/http/AccountManager.kt
index ecc3db1..f002b3e 100644
--- a/app/src/main/java/com/novel/read/http/AccountManager.kt
+++ b/app/src/main/java/com/novel/read/http/AccountManager.kt
@@ -42,7 +42,6 @@ import io.reactivex.schedulers.Schedulers
 import okhttp3.MediaType
 import okhttp3.RequestBody
 import retrofit2.Callback
-import java.util.Map
 
 /**
  * Created by zlj on 2017/2/14.
diff --git a/app/src/main/java/com/novel/read/model/db/BookRecordBean.java b/app/src/main/java/com/novel/read/model/db/BookRecordBean.java
deleted file mode 100644
index c3e764b..0000000
--- a/app/src/main/java/com/novel/read/model/db/BookRecordBean.java
+++ /dev/null
@@ -1,43 +0,0 @@
-package com.novel.read.model.db;
-
-import org.litepal.crud.LitePalSupport;
-
-import java.io.Serializable;
-
-/**
- * Created by newbiechen on 17-5-20.
- */
-public class BookRecordBean extends LitePalSupport implements Serializable {
-    //所属的书的id
-    private String bookId;
-    //阅读到了第几章
-    private int chapter;
-    //当前的页码
-    private int pagePos;
-
-
-
-    public String getBookId() {
-        return bookId;
-    }
-
-    public void setBookId(String bookId) {
-        this.bookId = bookId;
-    }
-
-    public int getChapter() {
-        return chapter;
-    }
-
-    public void setChapter(int chapter) {
-        this.chapter = chapter;
-    }
-
-    public int getPagePos() {
-        return pagePos;
-    }
-
-    public void setPagePos(int pagePos) {
-        this.pagePos = pagePos;
-    }
-}
diff --git a/app/src/main/java/com/novel/read/model/db/BookRecordBean.kt b/app/src/main/java/com/novel/read/model/db/BookRecordBean.kt
new file mode 100644
index 0000000..09ff07b
--- /dev/null
+++ b/app/src/main/java/com/novel/read/model/db/BookRecordBean.kt
@@ -0,0 +1,17 @@
+package com.novel.read.model.db
+
+import org.litepal.crud.LitePalSupport
+
+import java.io.Serializable
+
+/**
+ * Created by zlj
+ */
+class BookRecordBean : LitePalSupport(), Serializable {
+    //所属的书的id
+    var bookId: String = ""
+    //阅读到了第几章
+    var chapter: Int = 0
+    //当前的页码
+    var pagePos: Int = 0
+}
diff --git a/app/src/main/java/com/novel/read/model/db/CollBookBean.java b/app/src/main/java/com/novel/read/model/db/CollBookBean.java
index ac844e3..f53a0fb 100644
--- a/app/src/main/java/com/novel/read/model/db/CollBookBean.java
+++ b/app/src/main/java/com/novel/read/model/db/CollBookBean.java
@@ -14,9 +14,7 @@ import java.util.List;
  */
 public class CollBookBean extends LitePalSupport implements Serializable {
 
-    public static final int STATUS_UNCACHE = 0; //未缓存
-    public static final int STATUS_CACHING = 1; //正在缓存
-    public static final int STATUS_CACHED = 2;  //已经缓存
+
     /**
      * _id : 53663ae356bdc93e49004474
      * title : 逍遥派
diff --git a/app/src/main/java/com/novel/read/model/db/DownloadTaskBean.java b/app/src/main/java/com/novel/read/model/db/DownloadTaskBean.java
index 516223b..dc64f21 100644
--- a/app/src/main/java/com/novel/read/model/db/DownloadTaskBean.java
+++ b/app/src/main/java/com/novel/read/model/db/DownloadTaskBean.java
@@ -7,7 +7,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 /**
- * Created by newbiechen on 17-5-11.
+ * Created by zlj
  */
 public class DownloadTaskBean extends LitePalSupport {
     public static final int STATUS_LOADING = 1;
diff --git a/app/src/main/java/com/novel/read/model/db/SearchListTable.java b/app/src/main/java/com/novel/read/model/db/SearchListTable.java
deleted file mode 100644
index 1dd57d0..0000000
--- a/app/src/main/java/com/novel/read/model/db/SearchListTable.java
+++ /dev/null
@@ -1,42 +0,0 @@
-package com.novel.read.model.db;
-
-
-import androidx.annotation.Nullable;
-
-import org.litepal.crud.LitePalSupport;
-
-import java.io.Serializable;
-
-/**
- * create by zlj on 2019/6/19
- * describe:
- */
-public class SearchListTable extends LitePalSupport implements Serializable {
-
-    private String key;
-    private long saveTime;
-
-    public String getKey() {
-        return key == null ? "" : key;
-    }
-
-    public void setKey(String key) {
-        this.key = key;
-    }
-
-    public long getSaveTime() {
-        return saveTime;
-    }
-
-    public void setSaveTime(long saveTime) {
-        this.saveTime = saveTime;
-    }
-
-    @Override
-    public boolean equals(@Nullable Object obj) {
-        if (obj != null && obj.toString().equals(key)) {
-            return true;
-        }
-        return super.equals(obj);
-    }
-}
diff --git a/app/src/main/java/com/novel/read/model/db/SearchListTable.kt b/app/src/main/java/com/novel/read/model/db/SearchListTable.kt
new file mode 100644
index 0000000..6d6053a
--- /dev/null
+++ b/app/src/main/java/com/novel/read/model/db/SearchListTable.kt
@@ -0,0 +1,29 @@
+package com.novel.read.model.db
+
+
+import org.litepal.crud.LitePalSupport
+
+import java.io.Serializable
+
+/**
+ * create by zlj on 2019/6/19
+ * describe:
+ */
+class SearchListTable : LitePalSupport(), Serializable {
+
+    var key: String = ""
+    var saveTime: Long = 0
+
+
+    override fun equals(other: Any?): Boolean {
+        return if (other != null && other.toString() == key) {
+            true
+        } else super.equals(other)
+    }
+
+    override fun hashCode(): Int {
+        var result = key.hashCode()
+        result = 31 * result + saveTime.hashCode()
+        return result
+    }
+}
diff --git a/app/src/main/java/com/novel/read/model/db/dbManage/BookManager.java b/app/src/main/java/com/novel/read/model/db/dbManage/BookManager.java
index 85d2ccc..b28cfa2 100644
--- a/app/src/main/java/com/novel/read/model/db/dbManage/BookManager.java
+++ b/app/src/main/java/com/novel/read/model/db/dbManage/BookManager.java
@@ -53,7 +53,7 @@ public class BookManager {
             File file = getBookFile(bookId, chapterName);
             //TODO:数据加载默认utf-8(以后会增加判断),FileUtils采用Reader获取数据的，可能用byte会更好一点
             char[] array = FileUtils.getFileContent(file).toCharArray();
-            WeakReference<char[]> charReference = new WeakReference<char[]>(array);
+            WeakReference<char[]> charReference = new WeakReference<>(array);
             cache.size = array.length;
             cache.data = charReference;
             cacheMap.put(chapterName, cache);
@@ -167,9 +167,9 @@ public class BookManager {
 
     /**
      * 创建或获取存储文件
-     * @param folderName
-     * @param fileName
-     * @return
+     * @param folderName 文件夹
+     * @param fileName 文件
+     * @return 文件
      */
     public static File getBookFile(String folderName, String fileName){
         return FileUtils.getFile(Constant.BOOK_CACHE_PATH + folderName
@@ -186,7 +186,7 @@ public class BookManager {
      * 过)
      * @param folderName : bookId
      * @param fileName: chapterName
-     * @return
+     * @return 是否被缓存过
      */
     public static boolean isChapterCached(String folderName, String fileName){
         File file = new File(Constant.BOOK_CACHE_PATH + folderName
diff --git a/app/src/main/java/com/novel/read/model/protocol/BookArticleResp.java b/app/src/main/java/com/novel/read/model/protocol/BookArticleResp.java
index 3a18393..a5b0807 100644
--- a/app/src/main/java/com/novel/read/model/protocol/BookArticleResp.java
+++ b/app/src/main/java/com/novel/read/model/protocol/BookArticleResp.java
@@ -82,7 +82,7 @@ public class BookArticleResp implements Serializable {
         return bookChapterBean;
     }
 
-    public List<BookChapterBean> createChapterBean() {
+    private List<BookChapterBean> createChapterBean() {
         List<BookChapterBean> mList = new ArrayList<>();
         for (ArticleBean articleBean:getArticle()){
             mList.add(new BookChapterBean(String.valueOf(articleBean.getId()),articleBean.getTitle()));
diff --git a/app/src/main/java/com/novel/read/model/protocol/BookDetailResp.java b/app/src/main/java/com/novel/read/model/protocol/BookDetailResp.java
index eaa94ff..981d7ca 100644
--- a/app/src/main/java/com/novel/read/model/protocol/BookDetailResp.java
+++ b/app/src/main/java/com/novel/read/model/protocol/BookDetailResp.java
@@ -182,7 +182,7 @@ public class BookDetailResp {
         return collBookBean;
     }
 
-    public CollBookBean createCollBookBean(){
+    private CollBookBean createCollBookBean(){
         CollBookBean bean = new CollBookBean();
         bean.setId(String.valueOf(getBook().getId()));
         bean.setTitle(getBook().getTitle());
@@ -190,14 +190,10 @@ public class BookDetailResp {
         bean.setShortIntro(getBook().getDescription());
         bean.setCover(getBook().getCover());
         bean.setInclude_image(getBook().getInclude_image());
-//        bean.setHasCp(getBook().isHasCp());
-//        bean.setLatelyFollower(getBook().getLatelyFollower());
-//        bean.setRetentionRatio(Double.parseDouble(getBook().getRetentionRatio()));
         if (getLast_article()!=null){
             bean.setUpdated(String.valueOf(getLast_article().getCreate_time()));
             bean.setLastChapter(getLast_article().getTitle());
         }
-//        bean.setChaptersCount(getBook().getChaptersCount());
         return bean;
     }
 }
diff --git a/app/src/main/java/com/novel/read/model/protocol/ChapterInfoPackage.kt b/app/src/main/java/com/novel/read/model/protocol/ChapterInfoPackage.kt
index 081e1df..c8177f3 100644
--- a/app/src/main/java/com/novel/read/model/protocol/ChapterInfoPackage.kt
+++ b/app/src/main/java/com/novel/read/model/protocol/ChapterInfoPackage.kt
@@ -6,7 +6,7 @@ import java.io.Serializable
 
 class ChapterInfoPackage : Serializable {
 
-    var article: List<ChapterInfoBean>? = null
+    var article: List<ChapterInfoBean> = ArrayList()
 
 
 }
diff --git a/app/src/main/java/com/novel/read/service/DownloadMessage.java b/app/src/main/java/com/novel/read/service/DownloadMessage.java
index e141cb6..6b35680 100644
--- a/app/src/main/java/com/novel/read/service/DownloadMessage.java
+++ b/app/src/main/java/com/novel/read/service/DownloadMessage.java
@@ -2,11 +2,6 @@ package com.novel.read.service;
 
 import com.mango.mangolib.event.BaseEvent;
 
-/**
- * Created by newbiechen on 17-5-10.
- * 下载进度事件
- */
-
 public class DownloadMessage extends BaseEvent {
 
     public String message;
diff --git a/app/src/main/java/com/novel/read/service/DownloadService.java b/app/src/main/java/com/novel/read/service/DownloadService.java
index 752ca88..ba880f4 100644
--- a/app/src/main/java/com/novel/read/service/DownloadService.java
+++ b/app/src/main/java/com/novel/read/service/DownloadService.java
@@ -34,10 +34,6 @@ import java.util.concurrent.Executors;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 import io.reactivex.disposables.Disposable;
 
-/**
- * Created by newbiechen on 17-5-10.
- */
-
 public class DownloadService extends BaseService {
     private static final String TAG = "DownloadService";
     //加载状态
diff --git a/app/src/main/java/com/novel/read/utlis/PermissionUtil.java b/app/src/main/java/com/novel/read/utlis/PermissionUtil.java
index b9a5f01..bceed44 100644
--- a/app/src/main/java/com/novel/read/utlis/PermissionUtil.java
+++ b/app/src/main/java/com/novel/read/utlis/PermissionUtil.java
@@ -11,150 +11,118 @@ import com.novel.read.R;
 import java.util.ArrayList;
 import java.util.List;
 
-/**
- * Created by loki
- * Date 2018/9/3.
- */
-
 public class PermissionUtil {
-  private static PermissionUtil permissionUtil = null;
-  private static List<String> mListPermissions;
-
-
-  private static String[] PERMISSIONS_LIST = {
-      Manifest.permission.INTERNET,
-      Manifest.permission.ACCESS_NETWORK_STATE,
-      Manifest.permission.ACCESS_WIFI_STATE,
-      Manifest.permission.ACCESS_NETWORK_STATE,
-//      Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS, // not work
-//      Manifest.permission.WRITE_SETTINGS, // not grant
-//      Manifest.permission.GET_TASKS // dep
-  };
-
-  private static final String PERMISSIONS_STORAGE = Manifest.permission.WRITE_EXTERNAL_STORAGE;
-  private static final String PERMISSIONS_PHONE = Manifest.permission.READ_PHONE_STATE;
-  private static final String PERMISSIONS_SETTINGS = Manifest.permission.WRITE_SETTINGS;
-
-  /**
-   * 添加权限
-   * author LH
-   * data 2016/7/27 11:27
-   */
-  private void addAllPermissions(List<String> mListPermissions) {
-    mListPermissions.add(PERMISSIONS_STORAGE);
-//    mListPermissions.add(PERMISSIONS_PHONE);
-  }
-
-  /**
-   * 单例模式初始化
-   * author LH
-   * data 2016/7/27 11:27
-   */
-  public static PermissionUtil getInstance() {
-    if (permissionUtil == null) {
-      permissionUtil = new PermissionUtil();
-    }
-    return permissionUtil;
-  }
-
-  /**
-   * 判断当前为M以上版本
-   * author LH
-   * data 2016/7/27 11:29
-   */
-  public boolean isOverMarshmallow() {
-    return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
-  }
-
-  /**
-   * 获得没有授权的权限
-   * author LH
-   * data 2016/7/27 11:46
-   */
-  @TargetApi(value = Build.VERSION_CODES.M)
-  public List<String> findDeniedPermissions(Activity activity, List<String> permissions) {
-    List<String> denyPermissions = new ArrayList<>();
-    for (String value : permissions) {
-      if (activity.checkSelfPermission(value) != PackageManager.PERMISSION_GRANTED) {
-        denyPermissions.add(value);
-      }
+    private static PermissionUtil permissionUtil = null;
+    private static List<String> mListPermissions;
+
+
+    private static String[] PERMISSIONS_LIST = {
+            Manifest.permission.INTERNET,
+            Manifest.permission.ACCESS_NETWORK_STATE,
+            Manifest.permission.ACCESS_WIFI_STATE,
+            Manifest.permission.ACCESS_NETWORK_STATE,
+    };
+
+    private static final String PERMISSIONS_STORAGE = Manifest.permission.WRITE_EXTERNAL_STORAGE;
+    private static final String PERMISSIONS_PHONE = Manifest.permission.READ_PHONE_STATE;
+    private static final String PERMISSIONS_SETTINGS = Manifest.permission.WRITE_SETTINGS;
+
+
+    private void addAllPermissions(List<String> mListPermissions) {
+        mListPermissions.add(PERMISSIONS_STORAGE);
     }
-    return denyPermissions;
-  }
-
-  /**
-   * 获取所有权限
-   * author LH
-   * data 2016/7/27 13:37
-   */
-  @TargetApi(value = Build.VERSION_CODES.M)
-  public void requestPermissions(Activity activity, int requestCode, PermissionCallBack permissionCallBack) {
-    if (mListPermissions == null) {
-      mListPermissions = new ArrayList<>();
-      addAllPermissions(mListPermissions);
+
+
+    public static PermissionUtil getInstance() {
+        if (permissionUtil == null) {
+            permissionUtil = new PermissionUtil();
+        }
+        return permissionUtil;
     }
-    if (!isOverMarshmallow()) {
-      permissionCallBack.onPermissionSuccess();
-      return;
+
+    public boolean isOverMarshmallow() {
+        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M;
     }
-    mListPermissions = findDeniedPermissions(activity, mListPermissions);
-    if (mListPermissions != null && mListPermissions.size() > 0) {
-      activity.requestPermissions(mListPermissions.toArray(new String[mListPermissions.size()]),
-          requestCode);
-    } else {
-      permissionCallBack.onPermissionSuccess();
+
+    @TargetApi(value = Build.VERSION_CODES.M)
+    public List<String> findDeniedPermissions(Activity activity, List<String> permissions) {
+        List<String> denyPermissions = new ArrayList<>();
+        for (String value : permissions) {
+            if (activity.checkSelfPermission(value) != PackageManager.PERMISSION_GRANTED) {
+                denyPermissions.add(value);
+            }
+        }
+        return denyPermissions;
     }
-  }
-
-  public void requestResult(Activity activity, String[] permissions, int[] grantResults, PermissionCallBack permissionCallBack) {
-    mListPermissions = new ArrayList<>();
-    ArrayList<String> noPermissions = new ArrayList<>();
-    ArrayList<String> rejectPermissons = new ArrayList<>();
-    for (int i = 0; i < grantResults.length; i++) {
-      if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
-        if (isOverMarshmallow()) {
-          boolean isShould = activity.shouldShowRequestPermissionRationale(permissions[i]);
-          mListPermissions.add(permissions[i]);
-          if (isShould) {
-            noPermissions.add(permissions[i]);
-          } else {
-            rejectPermissons.add(permissions[i]);
-          }
+
+    @TargetApi(value = Build.VERSION_CODES.M)
+    public void requestPermissions(Activity activity, int requestCode, PermissionCallBack permissionCallBack) {
+        if (mListPermissions == null) {
+            mListPermissions = new ArrayList<>();
+            addAllPermissions(mListPermissions);
+        }
+        if (!isOverMarshmallow()) {
+            permissionCallBack.onPermissionSuccess();
+            return;
+        }
+        mListPermissions = findDeniedPermissions(activity, mListPermissions);
+        if (mListPermissions != null && mListPermissions.size() > 0) {
+            activity.requestPermissions(mListPermissions.toArray(new String[mListPermissions.size()]),
+                    requestCode);
+        } else {
+            permissionCallBack.onPermissionSuccess();
         }
-      }
     }
 
-    if (noPermissions.size() > 0) {
-      permissionCallBack.onPermissionFail();
-    } else if (rejectPermissons.size() > 0) {
-      ArrayList<String> permissonsList = new ArrayList<>();
-      for (int i = 0; i < rejectPermissons.size(); i++) {
-        String strPermissons = rejectPermissons.get(i);
-        if (PERMISSIONS_STORAGE.equals(strPermissons)) {
-          permissonsList.add("storage");
-        } else if (PERMISSIONS_PHONE.equals(strPermissons)) {
-          permissonsList.add("phone");
+    public void requestResult(Activity activity, String[] permissions, int[] grantResults, PermissionCallBack permissionCallBack) {
+        mListPermissions = new ArrayList<>();
+        ArrayList<String> noPermissions = new ArrayList<>();
+        ArrayList<String> rejectPermissons = new ArrayList<>();
+        for (int i = 0; i < grantResults.length; i++) {
+            if (grantResults[i] != PackageManager.PERMISSION_GRANTED) {
+                if (isOverMarshmallow()) {
+                    boolean isShould = activity.shouldShowRequestPermissionRationale(permissions[i]);
+                    mListPermissions.add(permissions[i]);
+                    if (isShould) {
+                        noPermissions.add(permissions[i]);
+                    } else {
+                        rejectPermissons.add(permissions[i]);
+                    }
+                }
+            }
+        }
+
+        if (noPermissions.size() > 0) {
+            permissionCallBack.onPermissionFail();
+        } else if (rejectPermissons.size() > 0) {
+            ArrayList<String> permissonsList = new ArrayList<>();
+            for (int i = 0; i < rejectPermissons.size(); i++) {
+                String strPermissons = rejectPermissons.get(i);
+                if (PERMISSIONS_STORAGE.equals(strPermissons)) {
+                    permissonsList.add("storage");
+                } else if (PERMISSIONS_PHONE.equals(strPermissons)) {
+                    permissonsList.add("phone");
+                }
+            }
+            String strPermissons = permissonsList.toString();
+            strPermissons = strPermissons.replace("[", "");
+            strPermissons = strPermissons.replace("]", "");
+            strPermissons = strPermissons.replace(",", "、");
+            String strAppName = activity.getString(R.string.app_name);
+            String strMessage = "permission";
+            strMessage = String.format(strMessage, strAppName, strPermissons, "\"");
+            permissionCallBack.onPermissionReject(strMessage);
+
+        } else {
+            permissionCallBack.onPermissionSuccess();
         }
-      }
-      String strPermissons = permissonsList.toString();
-      strPermissons = strPermissons.replace("[", "");
-      strPermissons = strPermissons.replace("]", "");
-      strPermissons = strPermissons.replace(",", "、");
-      String strAppName = activity.getString(R.string.app_name);
-      String strMessage = "permission";
-      strMessage = String.format(strMessage, strAppName, strPermissons, "\"");
-      permissionCallBack.onPermissionReject(strMessage);
-
-    } else {
-      permissionCallBack.onPermissionSuccess();
     }
-  }
 
-  public interface PermissionCallBack {
-    void onPermissionSuccess();
+    public interface PermissionCallBack {
+        void onPermissionSuccess();
 
-    void onPermissionReject(String strMessage);
+        void onPermissionReject(String strMessage);
 
-    void onPermissionFail();
-  }
+        void onPermissionFail();
+    }
 }
diff --git a/app/src/main/java/com/novel/read/widget/RefreshLayout.java b/app/src/main/java/com/novel/read/widget/RefreshLayout.java
index a6f205d..d5511d5 100644
--- a/app/src/main/java/com/novel/read/widget/RefreshLayout.java
+++ b/app/src/main/java/com/novel/read/widget/RefreshLayout.java
@@ -36,11 +36,11 @@ public class RefreshLayout extends FrameLayout {
     private int mStatus = 0;
 
     public RefreshLayout(Context context) {
-        this(context,null);
+        this(context, null);
     }
 
     public RefreshLayout(Context context, AttributeSet attrs) {
-        this(context, attrs,0);
+        this(context, attrs, 0);
     }
 
     public RefreshLayout(Context context, AttributeSet attrs, int defStyleAttr) {
@@ -50,16 +50,16 @@ public class RefreshLayout extends FrameLayout {
         initView();
     }
 
-    private void initAttrs(AttributeSet attrs){
+    private void initAttrs(AttributeSet attrs) {
         TypedArray typedArray = mContext.obtainStyledAttributes(attrs, R.styleable.RefreshLayout);
-        mEmptyViewId = typedArray.getResourceId(R.styleable.RefreshLayout_layout_refresh_empty,R.layout.view_empty);
-        mErrorViewId = typedArray.getResourceId(R.styleable.RefreshLayout_layout_refresh_error,R.layout.view_net_error);
-        mLoadingViewId = typedArray.getResourceId(R.styleable.RefreshLayout_layout_refresh_loading,R.layout.view_loading);
+        mEmptyViewId = typedArray.getResourceId(R.styleable.RefreshLayout_layout_refresh_empty, R.layout.view_empty);
+        mErrorViewId = typedArray.getResourceId(R.styleable.RefreshLayout_layout_refresh_error, R.layout.view_net_error);
+        mLoadingViewId = typedArray.getResourceId(R.styleable.RefreshLayout_layout_refresh_loading, R.layout.view_loading);
 
         typedArray.recycle();
     }
 
-    private void initView(){
+    private void initView() {
 
         //添加在empty、error、loading 情况下的布局
         mEmptyView = inflateView(mEmptyViewId);
@@ -73,7 +73,7 @@ public class RefreshLayout extends FrameLayout {
         //设置监听器
         mErrorView.setOnClickListener(
                 (view) -> {
-                    if (mListener != null){
+                    if (mListener != null) {
                         toggleStatus(STATUS_LOADING);
                         mListener.onReload();
                     }
@@ -90,7 +90,7 @@ public class RefreshLayout extends FrameLayout {
     @Override
     public void onViewAdded(View child) {
         super.onViewAdded(child);
-        if (getChildCount() == 4){
+        if (getChildCount() == 4) {
             mContentView = child;
         }
     }
@@ -131,43 +131,43 @@ public class RefreshLayout extends FrameLayout {
         super.addView(child, index, params);
     }
 
-    public void showLoading(){
-        if (mStatus != STATUS_LOADING){
+    public void showLoading() {
+        if (mStatus != STATUS_LOADING) {
             toggleStatus(STATUS_LOADING);
         }
     }
 
-    public void showFinish(){
-        if (mStatus == STATUS_LOADING){
+    public void showFinish() {
+        if (mStatus == STATUS_LOADING) {
             toggleStatus(STATUS_FINISH);
         }
     }
 
-    public void showError(){
-        if (mStatus != STATUS_ERROR){
+    public void showError() {
+        if (mStatus != STATUS_ERROR) {
             toggleStatus(STATUS_ERROR);
         }
     }
 
-    public void showEmpty(){
-        if (mStatus != STATUS_EMPTY){
+    public void showEmpty() {
+        if (mStatus != STATUS_EMPTY) {
             toggleStatus(STATUS_EMPTY);
         }
     }
 
     //视图根据状态切换
-    private void toggleStatus(int status){
-        switch (status){
+    private void toggleStatus(int status) {
+        switch (status) {
             case STATUS_LOADING:
                 mLoadingView.setVisibility(VISIBLE);
                 mEmptyView.setVisibility(GONE);
                 mErrorView.setVisibility(GONE);
-                if (mContentView != null){
+                if (mContentView != null) {
                     mContentView.setVisibility(GONE);
                 }
                 break;
             case STATUS_FINISH:
-                if (mContentView != null){
+                if (mContentView != null) {
                     mContentView.setVisibility(VISIBLE);
                 }
                 mLoadingView.setVisibility(GONE);
@@ -178,7 +178,7 @@ public class RefreshLayout extends FrameLayout {
                 mErrorView.setVisibility(VISIBLE);
                 mLoadingView.setVisibility(GONE);
                 mEmptyView.setVisibility(GONE);
-                if (mContentView != null){
+                if (mContentView != null) {
                     mContentView.setVisibility(GONE);
                 }
                 break;
@@ -186,7 +186,7 @@ public class RefreshLayout extends FrameLayout {
                 mEmptyView.setVisibility(VISIBLE);
                 mErrorView.setVisibility(GONE);
                 mLoadingView.setVisibility(GONE);
-                if (mContentView != null){
+                if (mContentView != null) {
                     mContentView.setVisibility(GONE);
                 }
                 break;
@@ -194,17 +194,12 @@ public class RefreshLayout extends FrameLayout {
         mStatus = status;
     }
 
-    protected int getStatus(){
-        return mStatus;
-    }
-
-    public void setOnReloadingListener(OnReloadingListener listener){
+    public void setOnReloadingListener(OnReloadingListener listener) {
         mListener = listener;
     }
 
-    private View inflateView(int id){
-        return LayoutInflater.from(mContext)
-                .inflate(id,this,false);
+    private View inflateView(int id) {
+        return LayoutInflater.from(mContext).inflate(id, this, false);
     }
 
     //数据存储
@@ -255,7 +250,7 @@ public class RefreshLayout extends FrameLayout {
     }
 
     //添加错误重新加载的监听
-    public interface OnReloadingListener{
+    public interface OnReloadingListener {
         void onReload();
     }
 }
diff --git a/app/src/main/java/com/novel/read/widget/page/PageLoader.java b/app/src/main/java/com/novel/read/widget/page/PageLoader.java
index 823ab05..1785a49 100644
--- a/app/src/main/java/com/novel/read/widget/page/PageLoader.java
+++ b/app/src/main/java/com/novel/read/widget/page/PageLoader.java
@@ -874,7 +874,7 @@ public abstract class PageLoader {
             int para = mTextPara + (int) mTextPaint.getTextSize();
             int titleInterval = mTitleInterval + (int) mTitlePaint.getTextSize();
             int titlePara = mTitlePara + (int) mTextPaint.getTextSize();
-            String str = null;
+            String str;
 
             //对标题进行绘制
             for (int i = 0; i < mCurPage.titleLines; ++i) {
diff --git a/app/src/main/java/com/novel/read/widget/page/PageView.java b/app/src/main/java/com/novel/read/widget/page/PageView.java
index 44ec573..c62e47d 100644
--- a/app/src/main/java/com/novel/read/widget/page/PageView.java
+++ b/app/src/main/java/com/novel/read/widget/page/PageView.java
@@ -24,8 +24,6 @@ import com.novel.read.widget.page.anim.SlidePageAnim;
  */
 public class PageView extends View {
 
-    private final static String TAG = "BookPageWidget";
-
     private int mViewWidth = 0; // 当前View的宽
     private int mViewHeight = 0; // 当前View的高
 
diff --git a/app/src/main/java/com/novel/read/widget/page/TxtPage.java b/app/src/main/java/com/novel/read/widget/page/TxtPage.java
index 1d74090..e1b93b2 100644
--- a/app/src/main/java/com/novel/read/widget/page/TxtPage.java
+++ b/app/src/main/java/com/novel/read/widget/page/TxtPage.java
@@ -18,9 +18,7 @@ public class TxtPage {
         return title == null ? "" : title;
     }
 
-    public int getTitleLines() {
-        return titleLines;
-    }
+
 
     public List<String> getLines() {
         if (lines == null) {
diff --git a/app/src/main/java/com/novel/read/widget/page/anim/SimulationPageAnim.kt b/app/src/main/java/com/novel/read/widget/page/anim/SimulationPageAnim.kt
index f64586e..68ba596 100644
--- a/app/src/main/java/com/novel/read/widget/page/anim/SimulationPageAnim.kt
+++ b/app/src/main/java/com/novel/read/widget/page/anim/SimulationPageAnim.kt
@@ -74,7 +74,7 @@ class SimulationPageAnim(w: Int, h: Int, view: View, listener: OnPageChangeListe
 
     override fun drawMove(canvas: Canvas) {
         when (mDirection) {
-            PageAnimation.Direction.NEXT -> {
+            Direction.NEXT -> {
                 calcPoints()
                 drawCurrentPageArea(canvas, mCurBitmap, mPath0)
                 drawNextPageAreaAndShadow(canvas, mNextBitmap)
@@ -108,13 +108,13 @@ class SimulationPageAnim(w: Int, h: Int, view: View, listener: OnPageChangeListe
         // dy 垂直方向滑动的距离，负值会使滚动向上滚动
         if (isCancel) {
 
-            if (mCornerX > 0 && mDirection == PageAnimation.Direction.NEXT) {
+            if (mCornerX > 0 && mDirection == Direction.NEXT) {
                 dx = (mScreenWidth - mTouchX).toInt()
             } else {
                 dx = -mTouchX.toInt()
             }
 
-            if (mDirection != PageAnimation.Direction.NEXT) {
+            if (mDirection != Direction.NEXT) {
                 dx = (-(mScreenWidth + mTouchX)).toInt()
             }
 
@@ -124,7 +124,7 @@ class SimulationPageAnim(w: Int, h: Int, view: View, listener: OnPageChangeListe
                 dy = -mTouchY.toInt() // 防止mTouchY最终变为0
             }
         } else {
-            if (mCornerX > 0 && mDirection == PageAnimation.Direction.NEXT) {
+            if (mCornerX > 0 && mDirection == Direction.NEXT) {
                 dx = -(mScreenWidth + mTouchX).toInt()
             } else {
                 dx = (mScreenWidth - mTouchX + mScreenWidth).toInt()
@@ -142,14 +142,14 @@ class SimulationPageAnim(w: Int, h: Int, view: View, listener: OnPageChangeListe
         super.setDirection(direction)
 
         when (direction) {
-            PageAnimation.Direction.PRE ->
+            Direction.PRE ->
                 //上一页滑动不出现对角
                 if (mStartX > mScreenWidth / 2) {
                     calcCornerXY(mStartX, mScreenHeight.toFloat())
                 } else {
                     calcCornerXY(mScreenWidth - mStartX, mScreenHeight.toFloat())
                 }
-            PageAnimation.Direction.NEXT -> if (mScreenWidth / 2 > mStartX) {
+            Direction.NEXT -> if (mScreenWidth / 2 > mStartX) {
                 calcCornerXY(mScreenWidth - mStartX, mStartY)
             }
         }
@@ -163,11 +163,11 @@ class SimulationPageAnim(w: Int, h: Int, view: View, listener: OnPageChangeListe
     override fun setTouchPoint(x: Float, y: Float) {
         super.setTouchPoint(x, y)
         //触摸y中间位置吧y变成屏幕高度
-        if (mStartY > mScreenHeight / 3 && mStartY < mScreenHeight * 2 / 3 || mDirection == PageAnimation.Direction.PRE) {
+        if (mStartY > mScreenHeight / 3 && mStartY < mScreenHeight * 2 / 3 || mDirection == Direction.PRE) {
             mTouchY = mScreenHeight.toFloat()
         }
 
-        if (mStartY > mScreenHeight / 3 && mStartY < mScreenHeight / 2 && mDirection == PageAnimation.Direction.NEXT) {
+        if (mStartY > mScreenHeight / 3 && mStartY < mScreenHeight / 2 && mDirection == Direction.NEXT) {
             mTouchY = 1f
         }
     }
diff --git a/app/src/main/java/com/novel/read/widget/page/anim/SlidePageAnim.kt b/app/src/main/java/com/novel/read/widget/page/anim/SlidePageAnim.kt
index 6a27996..355f3e7 100644
--- a/app/src/main/java/com/novel/read/widget/page/anim/SlidePageAnim.kt
+++ b/app/src/main/java/com/novel/read/widget/page/anim/SlidePageAnim.kt
@@ -26,9 +26,9 @@ class SlidePageAnim(w: Int, h: Int, view: View, listener: OnPageChangeListener)
     }
 
     override fun drawMove(canvas: Canvas) {
-        var dis = 0
+        var dis: Int
         when (mDirection) {
-            PageAnimation.Direction.NEXT -> {
+            Direction.NEXT -> {
                 //左半边的剩余区域
                 dis = (mScreenWidth - mStartX + mTouchX).toInt()
                 if (dis > mScreenWidth) {
@@ -68,9 +68,9 @@ class SlidePageAnim(w: Int, h: Int, view: View, listener: OnPageChangeListener)
 
     override fun startAnim() {
         super.startAnim()
-        var dx = 0
+        val dx: Int
         when (mDirection) {
-            PageAnimation.Direction.NEXT -> if (isCancel) {
+            Direction.NEXT -> if (isCancel) {
                 var dis = (mScreenWidth - mStartX + mTouchX).toInt()
                 if (dis > mScreenWidth) {
                     dis = mScreenWidth