diff --git a/app/src/main/java/com/dazuoye/filemanager/fileSystem/WrappedFile.kt b/app/src/main/java/com/dazuoye/filemanager/fileSystem/WrappedFile.kt
index 8907477..c9ac5c8 100644
--- a/app/src/main/java/com/dazuoye/filemanager/fileSystem/WrappedFile.kt
+++ b/app/src/main/java/com/dazuoye/filemanager/fileSystem/WrappedFile.kt
@@ -27,7 +27,7 @@ class WrappedFile(private val f: File, skipCalculateDirectorySize: Boolean = fal
       var unit = SizeUnit.B
 
       while (sizeFirst > 1024u && unit != SizeUnit.GB) {
-        sizeLast = size.mod(1024u).toInt()
+        sizeLast = sizeFirst.mod(1024u).toInt()
         sizeFirst /= 1024u
         unit = when (unit) {
           SizeUnit.B -> SizeUnit.KB
diff --git a/app/src/main/java/com/dazuoye/filemanager/fileSystem/adapters/Image.kt b/app/src/main/java/com/dazuoye/filemanager/fileSystem/adapters/Image.kt
index c24efca..9251516 100644
--- a/app/src/main/java/com/dazuoye/filemanager/fileSystem/adapters/Image.kt
+++ b/app/src/main/java/com/dazuoye/filemanager/fileSystem/adapters/Image.kt
@@ -2,6 +2,7 @@ package com.dazuoye.filemanager.fileSystem.adapters
 
 import android.content.Context
 import android.graphics.Bitmap
+import android.graphics.BitmapFactory
 import android.media.ThumbnailUtils
 import android.util.Size
 import android.view.LayoutInflater
@@ -25,7 +26,7 @@ class ImageModel(image: File) {
     if (!image.isFile) {
       throw RuntimeException("No such Image")
     }
-    thumbnail = ThumbnailUtils.createImageThumbnail(image, Size(512, 512), null)
+    thumbnail = ThumbnailUtils.createImageThumbnail(image, Size(80, 120), null)
   }
 }
 
diff --git a/app/src/main/java/com/dazuoye/filemanager/picture_page.kt b/app/src/main/java/com/dazuoye/filemanager/picture_page.kt
index d32960d..03d91d5 100644
--- a/app/src/main/java/com/dazuoye/filemanager/picture_page.kt
+++ b/app/src/main/java/com/dazuoye/filemanager/picture_page.kt
@@ -291,4 +291,9 @@ class picture_page : AppCompatActivity() {
       loadingText(loadingTextView, defaultText, next)
     }
   }
+
+  override fun onDestroy() {
+    super.onDestroy()
+    System.gc()
+  }
 }
\ No newline at end of file
diff --git a/app/src/main/rust/libfshelper/src/lib.rs b/app/src/main/rust/libfshelper/src/lib.rs
index cde4892..3ba2d42 100644
--- a/app/src/main/rust/libfshelper/src/lib.rs
+++ b/app/src/main/rust/libfshelper/src/lib.rs
@@ -15,7 +15,7 @@ pub extern "system" fn Java_com_dazuoye_filemanager_utils_FSHelper_getFolderSize
         .expect("failed to parse input")
         .into();
 
-    if !fs::exists(&dir).expect(format!("Cannot stat {}", dir).as_str()) {
+    if !fs::exists(&dir).expect(format!("Cannot stat {dir}").as_str()) {
         return env
             .new_string(format!("{} not exists!", dir))
             .expect("Couldn't create java string!")
@@ -30,7 +30,7 @@ pub extern "system" fn Java_com_dazuoye_filemanager_utils_FSHelper_getFolderSize
                 match item.metadata() {
                     Ok(metadata) => size += metadata.len(),
                     Err(e) => {
-                        eprintln!("Error getting metadata for item: {:?}", e);
+                        eprintln!("Error getting metadata for item: {e:?}");
                         continue;
                     }
                 }