diff --git a/app/actionmanager.cpp b/app/actionmanager.cpp
index f8b44ff..ae028fc 100644
--- a/app/actionmanager.cpp
+++ b/app/actionmanager.cpp
@@ -16,16 +16,6 @@
 #define ACTION_NAME(s) QStringLiteral(STRIFY(s))
 #define STRIFY(s) #s
 
-ActionManager::ActionManager()
-{
-
-}
-
-ActionManager::~ActionManager()
-{
-
-}
-
 QIcon ActionManager::loadHidpiIcon(const QString &resp, QSize sz)
 {
     QSvgRenderer r(resp);
diff --git a/app/actionmanager.h b/app/actionmanager.h
index 314b107..3c42408 100644
--- a/app/actionmanager.h
+++ b/app/actionmanager.h
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2022 Gary Wang <wzc782970009@gmail.com>
+// SPDX-FileCopyrightText: 2025 Gary Wang <git@blumia.net>
 //
 // SPDX-License-Identifier: MIT
 
@@ -12,8 +12,8 @@ class MainWindow;
 class ActionManager
 {
 public:
-    ActionManager();
-    ~ActionManager();
+    explicit ActionManager() = default;
+    ~ActionManager() = default;
 
     void setupAction(MainWindow * mainWindow);
     void retranslateUi(MainWindow *MainWindow);
diff --git a/app/playlistmanager.h b/app/playlistmanager.h
index 0314987..2339409 100644
--- a/app/playlistmanager.h
+++ b/app/playlistmanager.h
@@ -62,12 +62,12 @@ public:
     Q_INVOKABLE QModelIndex loadPlaylist(const QList<QUrl> & urls);
     Q_INVOKABLE QModelIndex loadPlaylist(const QUrl & url);
 
-    inline int totalCount() const;
+    int totalCount() const;
     QModelIndex previousIndex() const;
     QModelIndex nextIndex() const;
     QModelIndex curIndex() const;
-    inline bool isFirstIndex() const;
-    inline bool isLastIndex() const;
+    bool isFirstIndex() const;
+    bool isLastIndex() const;
     void setCurrentIndex(const QModelIndex & index);
     QUrl urlByIndex(const QModelIndex & index);
     QString localFileByIndex(const QModelIndex & index);
diff --git a/app/shortcutedit.cpp b/app/shortcutedit.cpp
index 20486e2..10e3e77 100644
--- a/app/shortcutedit.cpp
+++ b/app/shortcutedit.cpp
@@ -40,11 +40,6 @@ ShortcutEditor::ShortcutEditor(ShortcutEdit * shortcutEdit, QWidget * parent)
     reloadShortcuts();
 }
 
-ShortcutEditor::~ShortcutEditor()
-{
-
-}
-
 void ShortcutEditor::setDescription(const QString &desc)
 {
     m_descriptionLabel->setText(desc);
diff --git a/app/shortcutedit.h b/app/shortcutedit.h
index 1b70cf4..997a33c 100644
--- a/app/shortcutedit.h
+++ b/app/shortcutedit.h
@@ -18,7 +18,7 @@ class ShortcutEditor : public QWidget
     Q_OBJECT
 public:
     explicit ShortcutEditor(ShortcutEdit * shortcutEdit, QWidget * parent = nullptr);
-    ~ShortcutEditor();
+    ~ShortcutEditor() = default;
 
     void setDescription(const QString & desc);