diff --git a/app/src/main/java/io/legado/app/utils/BatteryUtils.kt b/app/src/main/java/io/legado/app/utils/BatteryUtils.kt
deleted file mode 100644
index c7d49a3aa..000000000
--- a/app/src/main/java/io/legado/app/utils/BatteryUtils.kt
+++ /dev/null
@@ -1,16 +0,0 @@
-package io.legado.app.utils
-
-import android.content.Context
-import android.content.Intent
-import android.content.IntentFilter
-import android.os.BatteryManager
-
-object BatteryUtils {
-
-    fun getLevel(context: Context): Int {
-        val iFilter = IntentFilter(Intent.ACTION_BATTERY_CHANGED)
-        val batteryStatus = context.registerReceiver(null, iFilter)
-
-        return batteryStatus?.getIntExtra(BatteryManager.EXTRA_LEVEL, -1) ?: -1
-    }
-}
diff --git a/app/src/main/java/io/legado/app/utils/ContextExtensions.kt b/app/src/main/java/io/legado/app/utils/ContextExtensions.kt
index de1eedaa8..1ad897272 100644
--- a/app/src/main/java/io/legado/app/utils/ContextExtensions.kt
+++ b/app/src/main/java/io/legado/app/utils/ContextExtensions.kt
@@ -3,10 +3,12 @@ package io.legado.app.utils
 import android.annotation.SuppressLint
 import android.content.Context
 import android.content.Intent
+import android.content.IntentFilter
 import android.content.res.ColorStateList
 import android.content.res.Configuration
 import android.graphics.Bitmap
 import android.graphics.drawable.Drawable
+import android.os.BatteryManager
 import android.provider.Settings
 import androidx.annotation.ColorRes
 import androidx.annotation.DrawableRes
@@ -133,4 +135,13 @@ fun Context.shareWithQr(title: String, text: String) {
 fun Context.sysIsDarkMode(): Boolean {
     val mode = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
     return mode == Configuration.UI_MODE_NIGHT_YES
+}
+
+/**
+ * 获取电量
+ */
+fun Context.getBettery(): Int {
+    val iFilter = IntentFilter(Intent.ACTION_BATTERY_CHANGED)
+    val batteryStatus = registerReceiver(null, iFilter)
+    return batteryStatus?.getIntExtra(BatteryManager.EXTRA_LEVEL, -1) ?: -1
 }
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/utils/DocumentUtils.kt b/app/src/main/java/io/legado/app/utils/DocumentUtils.kt
index 15b1a7754..2adfcddf4 100644
--- a/app/src/main/java/io/legado/app/utils/DocumentUtils.kt
+++ b/app/src/main/java/io/legado/app/utils/DocumentUtils.kt
@@ -7,6 +7,7 @@ import android.provider.DocumentsContract
 import androidx.documentfile.provider.DocumentFile
 import java.util.*
 
+@Suppress("unused")
 object DocumentUtils {
 
     fun exists(root: DocumentFile, fileName: String, vararg subDirs: String): Boolean {
diff --git a/app/src/main/java/io/legado/app/utils/EncoderUtils.kt b/app/src/main/java/io/legado/app/utils/EncoderUtils.kt
index 4858113e3..406aa3815 100644
--- a/app/src/main/java/io/legado/app/utils/EncoderUtils.kt
+++ b/app/src/main/java/io/legado/app/utils/EncoderUtils.kt
@@ -3,6 +3,7 @@ package io.legado.app.utils
 import android.util.Base64
 import java.nio.charset.StandardCharsets
 
+@Suppress("unused")
 object EncoderUtils {
 
     fun escape(src: String): String {
diff --git a/app/src/main/java/io/legado/app/utils/FileUtils.kt b/app/src/main/java/io/legado/app/utils/FileUtils.kt
index 8dbfa318f..2b4cbce61 100644
--- a/app/src/main/java/io/legado/app/utils/FileUtils.kt
+++ b/app/src/main/java/io/legado/app/utils/FileUtils.kt
@@ -10,7 +10,7 @@ import io.legado.app.App
 import java.io.File
 import java.io.IOException
 
-
+@Suppress("unused")
 object FileUtils {
 
     fun exists(root: File, fileName: String, vararg subDirs: String): Boolean {
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 7953259f5..8c5070d11 100644
--- a/app/src/main/java/io/legado/app/utils/LogUtils.kt
+++ b/app/src/main/java/io/legado/app/utils/LogUtils.kt
@@ -8,7 +8,7 @@ import java.util.*
 import java.util.logging.*
 import java.util.logging.Formatter
 
-
+@Suppress("unused")
 object LogUtils {
     const val TIME_PATTERN = "yyyy-MM-dd HH:mm:ss"
 
diff --git a/app/src/main/java/io/legado/app/utils/MD5Utils.kt b/app/src/main/java/io/legado/app/utils/MD5Utils.kt
index a83345bc6..f0044a999 100644
--- a/app/src/main/java/io/legado/app/utils/MD5Utils.kt
+++ b/app/src/main/java/io/legado/app/utils/MD5Utils.kt
@@ -6,7 +6,7 @@ import java.security.NoSuchAlgorithmException
 /**
  * 将字符串转化为MD5
  */
-
+@Suppress("unused")
 object MD5Utils {
 
     fun md5Encode(str: String?): String? {
diff --git a/app/src/main/java/io/legado/app/utils/NetworkUtils.kt b/app/src/main/java/io/legado/app/utils/NetworkUtils.kt
index 616aa0006..0c59f05a3 100644
--- a/app/src/main/java/io/legado/app/utils/NetworkUtils.kt
+++ b/app/src/main/java/io/legado/app/utils/NetworkUtils.kt
@@ -8,6 +8,7 @@ import java.net.URL
 import java.util.*
 import java.util.regex.Pattern
 
+@Suppress("unused")
 object NetworkUtils {
     fun getUrl(response: Response<*>): String {
         val networkResponse = response.raw().networkResponse
diff --git a/app/src/main/java/io/legado/app/utils/StringUtils.kt b/app/src/main/java/io/legado/app/utils/StringUtils.kt
index 46053cad8..dda534eed 100644
--- a/app/src/main/java/io/legado/app/utils/StringUtils.kt
+++ b/app/src/main/java/io/legado/app/utils/StringUtils.kt
@@ -12,6 +12,7 @@ import kotlin.math.abs
 import kotlin.math.log10
 import kotlin.math.pow
 
+@Suppress("unused")
 object StringUtils {
     private const val HOUR_OF_DAY = 24
     private const val DAY_OF_YESTERDAY = 2
diff --git a/app/src/main/java/io/legado/app/utils/SystemUtils.kt b/app/src/main/java/io/legado/app/utils/SystemUtils.kt
index 91121c000..c29381bbf 100644
--- a/app/src/main/java/io/legado/app/utils/SystemUtils.kt
+++ b/app/src/main/java/io/legado/app/utils/SystemUtils.kt
@@ -9,6 +9,8 @@ import android.net.Uri
 import android.os.PowerManager
 import android.provider.Settings
 
+
+@Suppress("unused")
 object SystemUtils {
 
     fun getScreenOffTime(context: Context): Int {
diff --git a/app/src/main/java/io/legado/app/utils/UTF8BOMFighter.kt b/app/src/main/java/io/legado/app/utils/UTF8BOMFighter.kt
index 5ced93613..3f502f8b6 100644
--- a/app/src/main/java/io/legado/app/utils/UTF8BOMFighter.kt
+++ b/app/src/main/java/io/legado/app/utils/UTF8BOMFighter.kt
@@ -1,5 +1,6 @@
 package io.legado.app.utils
 
+@Suppress("unused")
 object UTF8BOMFighter {
     private val UTF8_BOM_BYTES = byteArrayOf(0xEF.toByte(), 0xBB.toByte(), 0xBF.toByte())
 
diff --git a/app/src/main/java/io/legado/app/utils/ZipUtils.kt b/app/src/main/java/io/legado/app/utils/ZipUtils.kt
index 44d547e5c..a8ec51d45 100644
--- a/app/src/main/java/io/legado/app/utils/ZipUtils.kt
+++ b/app/src/main/java/io/legado/app/utils/ZipUtils.kt
@@ -7,14 +7,7 @@ import java.util.zip.ZipEntry
 import java.util.zip.ZipFile
 import java.util.zip.ZipOutputStream
 
-/**
- * <pre>
- * author: Blankj
- * blog  : http://blankj.com
- * time  : 2016/08/27
- * desc  : utils about zip
-</pre> *
- */
+@Suppress("unused")
 object ZipUtils {
 
     /**