优化

app/src/main/java/io/legado/app/ui/book/manga/recyclerview/MangaVH.kt

@@ -7,6 +7,7 @@ import android.view.Gravity
 import android.view.ViewGroup
 import android.widget.Button
 import android.widget.FrameLayout
+import android.widget.ImageView
 import android.widget.ProgressBar
 import android.widget.TextView
 import androidx.appcompat.widget.AppCompatImageView
@@ -101,6 +102,7 @@ open class MangaVH<VB : ViewBinding>(val binding: VB, private val context: Conte
                         mImage.updateLayoutParams<FrameLayout.LayoutParams> {
                             gravity = Gravity.CENTER
                         }
+                        mImage.scaleType = ImageView.ScaleType.FIT_CENTER
                     }
                     return false
                 }

app/src/main/res/layout/item_book_manga_page.xml

@@ -11,7 +11,7 @@
     <androidx.appcompat.widget.AppCompatImageView
         android:id="@+id/image"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
         android:adjustViewBounds="true"
         android:scaleType="fitXY" />