diff --git a/app/src/main/java/io/legado/app/utils/PreferencesExtensions.kt b/app/src/main/java/io/legado/app/utils/PreferencesExtensions.kt
index b8370d526..58498a28a 100644
--- a/app/src/main/java/io/legado/app/utils/PreferencesExtensions.kt
+++ b/app/src/main/java/io/legado/app/utils/PreferencesExtensions.kt
@@ -1,11 +1,57 @@
+@file:Suppress("unused")
+
 package io.legado.app.utils
 
 import android.content.SharedPreferences
 import androidx.core.content.edit
 
 
+fun SharedPreferences.getString(key: String): String? {
+    return getString(key, null)
+}
+
+fun SharedPreferences.putString(key: String, value: String) {
+    edit {
+        putString(key, value)
+    }
+}
+
+fun SharedPreferences.getBoolean(key: String): Boolean {
+    return getBoolean(key, false)
+}
+
+fun SharedPreferences.putBoolean(key: String, value: Boolean) {
+    edit {
+        putBoolean(key, value)
+    }
+}
+
+fun SharedPreferences.getInt(key: String): Int {
+    return getInt(key, 0)
+}
+
+fun SharedPreferences.putInt(key: String, value: Int) {
+    edit {
+        putInt(key, value)
+    }
+}
+
+fun SharedPreferences.getLong(key: String): Long {
+    return getLong(key, 0)
+}
+
 fun SharedPreferences.putLong(key: String, value: Long) {
     edit {
         putLong(key, value)
     }
+}
+
+fun SharedPreferences.getFloat(key: String): Float {
+    return getFloat(key, 0f)
+}
+
+fun SharedPreferences.putFloat(key: String, value: Float) {
+    edit {
+        putFloat(key, value)
+    }
 }
\ No newline at end of file