diff --git a/app/src/main/java/io/legado/app/ui/widget/text/ScrollMultiAutoCompleteTextView.kt b/app/src/main/java/io/legado/app/ui/widget/text/ScrollMultiAutoCompleteTextView.kt
index a8731d764..8d8c3fe93 100644
--- a/app/src/main/java/io/legado/app/ui/widget/text/ScrollMultiAutoCompleteTextView.kt
+++ b/app/src/main/java/io/legado/app/ui/widget/text/ScrollMultiAutoCompleteTextView.kt
@@ -36,7 +36,7 @@ open class ScrollMultiAutoCompleteTextView @JvmOverloads constructor(
     override fun dispatchTouchEvent(event: MotionEvent): Boolean {
         if (event.action == MotionEvent.ACTION_DOWN) {
             //如果是新的按下事件，则对mBottomFlag重新初始化
-            mBottomFlag = false
+            mBottomFlag = lineCount <= maxLines
         }
         return super.dispatchTouchEvent(event)
     }
diff --git a/app/src/main/res/layout/item_source_edit.xml b/app/src/main/res/layout/item_source_edit.xml
index 6f05121f0..cd14a6fe4 100644
--- a/app/src/main/res/layout/item_source_edit.xml
+++ b/app/src/main/res/layout/item_source_edit.xml
@@ -9,7 +9,6 @@
         android:id="@+id/editText"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:inputType="textMultiLine"
-        android:maxLines="12" />
+        android:inputType="textMultiLine" />
 
 </io.legado.app.ui.widget.text.TextInputLayout>
\ No newline at end of file