diff --git a/app/src/main/java/io/legado/app/ui/config/ConfigFragment.kt b/app/src/main/java/io/legado/app/ui/config/ConfigFragment.kt
index c3b0ae799..fd957e433 100644
--- a/app/src/main/java/io/legado/app/ui/config/ConfigFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/config/ConfigFragment.kt
@@ -10,6 +10,7 @@ import io.legado.app.App
 import io.legado.app.R
 import io.legado.app.help.BookHelp
 import io.legado.app.lib.theme.ATH
+import io.legado.app.utils.LogUtils
 import io.legado.app.utils.getPrefString
 
 
@@ -39,6 +40,7 @@ class ConfigFragment : PreferenceFragmentCompat(), Preference.OnPreferenceChange
     override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
         when (key) {
             "downloadPath" -> BookHelp.upDownloadPath()
+            "recordLog" -> LogUtils.upLevel()
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/main/my/MyFragment.kt b/app/src/main/java/io/legado/app/ui/main/my/MyFragment.kt
index 36f2db63b..af839204e 100644
--- a/app/src/main/java/io/legado/app/ui/main/my/MyFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/main/my/MyFragment.kt
@@ -10,6 +10,7 @@ import androidx.preference.PreferenceFragmentCompat
 import io.legado.app.App
 import io.legado.app.R
 import io.legado.app.base.BaseFragment
+import io.legado.app.help.BookHelp
 import io.legado.app.help.permission.Permissions
 import io.legado.app.help.permission.PermissionsCompat
 import io.legado.app.help.storage.Backup
@@ -21,6 +22,7 @@ import io.legado.app.ui.book.source.manage.BookSourceActivity
 import io.legado.app.ui.config.ConfigActivity
 import io.legado.app.ui.config.ConfigViewModel
 import io.legado.app.ui.replacerule.ReplaceRuleActivity
+import io.legado.app.utils.LogUtils
 import io.legado.app.utils.startActivity
 import kotlinx.android.synthetic.main.view_title_bar.*
 import org.jetbrains.anko.startActivity
@@ -82,9 +84,9 @@ class MyFragment : BaseFragment(R.layout.fragment_my_config) {
             key: String?
         ) {
             when (key) {
-                "isNightTheme" -> {
-                    App.INSTANCE.applyDayNight()
-                }
+                "isNightTheme" -> App.INSTANCE.applyDayNight()
+                "recordLog" -> LogUtils.upLevel()
+                "downloadPath" -> BookHelp.upDownloadPath()
             }
         }
 
diff --git a/app/src/main/java/io/legado/app/utils/LogUtils.kt b/app/src/main/java/io/legado/app/utils/LogUtils.kt
index 571c4e4cf..b271cbda0 100644
--- a/app/src/main/java/io/legado/app/utils/LogUtils.kt
+++ b/app/src/main/java/io/legado/app/utils/LogUtils.kt
@@ -11,66 +11,36 @@ import java.util.logging.Formatter
 
 
 object LogUtils {
+    const val TIME_PATTERN = "yyyy-MM-dd HH:mm:ss"
 
-    private val logger: Logger by lazy {
+    val logger: Logger by lazy {
         Logger.getGlobal().apply {
-            addFileHandler(
-                this,
-                Level.INFO,
-                FileHelp.getCachePath()
-            )
+            addHandler(fileHandler)
         }
     }
 
-    fun log(msg: String) {
-        if (App.INSTANCE.getPrefBoolean("recordLog")) {
-            logger.log(Level.INFO, msg)
-        }
-    }
-
-    private const val DATE_PATTERN = "yyyy-MM-dd"
-    const val TIME_PATTERN = "HH:mm:ss"
-
-    /**
-     * 为log添加控制台handler
-     *
-     * @param log 要添加handler的log
-     * @param level 控制台的输出等级
-     */
-    fun addConsoleHandler(log: Logger, level: Level) {
-        // 控制台输出的handler
-        val consoleHandler = ConsoleHandler()
-        // 设置控制台输出的等级（如果ConsoleHandler的等级高于或者等于log的level，则按照FileHandler的level输出到控制台，如果低于，则按照Log等级输出）
-        consoleHandler.level = level
-        // 添加控制台的handler
-        log.addHandler(consoleHandler)
-    }
-
-    /**
-     * 为log添加文件输出Handler
-     *
-     * @param log 要添加文件输出handler的log
-     * @param level log输出等级
-     * @param filePath 指定文件全路径
-     */
-    fun addFileHandler(log: Logger, level: Level, filePath: String) {
-        var fileHandler: FileHandler? = null
-        try {
-            fileHandler =
-                FileHandler(filePath + File.separator + getCurrentDateStr(DATE_PATTERN) + ".log")
-            // 设置输出文件的等级（如果FileHandler的等级高于或者等于log的level，则按照FileHandler的level输出到文件，如果低于，则按照Log等级输出）
-            fileHandler.level = level
-            fileHandler.formatter = object : Formatter() {
+    private val fileHandler by lazy {
+        FileHandler(FileHelp.getCachePath() + File.separator + "app.log", 1024, 2).apply {
+            formatter = object : Formatter() {
                 override fun format(record: LogRecord): String {
                     // 设置文件输出格式
-                    return (getCurrentDateStr(TIME_PATTERN) + ":" + record.message + "\n")
+                    return (getCurrentDateStr(TIME_PATTERN) + ": " + record.message + "\n")
                 }
             }
-        } catch (e: Exception) {
-            e.printStackTrace()
+            level = if (App.INSTANCE.getPrefBoolean("recordLog")) {
+                Level.INFO
+            } else {
+                Level.OFF
+            }
+        }
+    }
+
+    fun upLevel() {
+        fileHandler.level = if (App.INSTANCE.getPrefBoolean("recordLog")) {
+            Level.INFO
+        } else {
+            Level.OFF
         }
-        // 添加输出文件handler
-        log.addHandler(fileHandler)
     }
 
     /**