Implement qmui_contentView method for UINavigationBar

.gitignore

@@ -1,4 +1,4 @@
 .DS_Store
 xcuserdata/
-
+.derivedData/
 

QMUIKit/QMUIComponents/QMUIKeyboardManager.m

@@ -15,6 +15,7 @@
 
 #import "QMUIKeyboardManager.h"
 #import "QMUICore.h"
+#import "UIApplication+QMUI.h"
 #import "QMUILog.h"
 #import "QMUIAppearance.h"
 #import "QMUIMultipleDelegates.h"
@@ -396,10 +397,10 @@ - (UIResponder *)unPackageTargetResponder:(NSValue *)value {
 }
 
 - (UIResponder *)firstResponderInWindows {
-    UIResponder *responder = [UIApplication.sharedApplication.keyWindow qmui_findFirstResponder];
+    UIResponder *responder = [UIApplication.sharedApplication.qmui_keyWindow qmui_findFirstResponder];
     if (!responder) {
-        for (UIWindow *window in UIApplication.sharedApplication.windows) {
-            if (window != UIApplication.sharedApplication.keyWindow) {
+        for (UIWindow *window in UIApplication.sharedApplication.qmui_windows) {
+            if (window != UIApplication.sharedApplication.qmui_keyWindow) {
                 responder = [window qmui_findFirstResponder];
                 if (responder) {
                     return responder;
@@ -720,7 +721,7 @@ - (void)keyboardDidChangedFrame:(UIView *)keyboardView {
         self.keyboardMoveBeginRect = endFrame;
 
         if (self.currentResponder) {
-            UIWindow *mainWindow = UIApplication.sharedApplication.keyWindow ?: UIApplication.sharedApplication.delegate.window;
+            UIWindow *mainWindow = UIApplication.sharedApplication.qmui_keyWindow ?: UIApplication.sharedApplication.delegate.window;
             if (mainWindow) {
                 CGRect keyboardRect = keyboardMoveUserInfo.endFrame;
                 CGFloat distanceFromBottom = [QMUIKeyboardManager distanceFromMinYToBottomInView:mainWindow keyboardRect:keyboardRect];
@@ -793,7 +794,7 @@ + (CGRect)convertKeyboardRect:(CGRect)rect toView:(UIView *)view {
         return rect;
     }
 
-    UIWindow *mainWindow = UIApplication.sharedApplication.keyWindow ?: UIApplication.sharedApplication.delegate.window;
+    UIWindow *mainWindow = UIApplication.sharedApplication.qmui_keyWindow ?: UIApplication.sharedApplication.delegate.window;
     if (!mainWindow) {
         if (view) {
             [view convertRect:rect fromView:nil];
@@ -855,15 +856,15 @@ + (CGFloat)distanceFromMinYToBottomInView:(UIView *)view keyboardRect:(CGRect)re
  所以只要找到 UIInputSetHostView 即可，优先从 UIRemoteKeyboardWindow 找，不存在的话则从 UITextEffectsWindow 找。
  */
 + (UIView *)keyboardView {
-    UIView *inputSetHostView = [[UIApplication.sharedApplication.windows qmui_filterWithBlock:^BOOL(__kindof UIWindow * _Nonnull window) {
+    UIView *inputSetHostView = [[UIApplication.sharedApplication.qmui_windows qmui_filterWithBlock:^BOOL(__kindof UIWindow * _Nonnull window) {
         return [NSStringFromClass(window.class) isEqualToString:@"UIRemoteKeyboardWindow"];
     }] qmui_compactMapWithBlock:^id _Nullable(__kindof UIWindow * _Nonnull window) {
         return [self inputSetHostViewInWindow:window];
     }].firstObject;
 
     if (inputSetHostView) return inputSetHostView;
 
-    inputSetHostView = [[UIApplication.sharedApplication.windows qmui_filterWithBlock:^BOOL(__kindof UIWindow * _Nonnull window) {
+    inputSetHostView = [[UIApplication.sharedApplication.qmui_windows qmui_filterWithBlock:^BOOL(__kindof UIWindow * _Nonnull window) {
         return [NSStringFromClass(window.class) isEqualToString:@"UITextEffectsWindow"];
     }] qmui_compactMapWithBlock:^id _Nullable(__kindof UIWindow * _Nonnull window) {
         return [self inputSetHostViewInWindow:window];
@@ -885,14 +886,14 @@ + (UIWindow *)keyboardWindow {
     UIView *inputSetHostView = [self keyboardView];
     if (inputSetHostView) return inputSetHostView.window;
 
-    UIWindow *window = [UIApplication.sharedApplication.windows qmui_firstMatchWithBlock:^BOOL(__kindof UIWindow * _Nonnull item) {
+    UIWindow *window = [UIApplication.sharedApplication.qmui_windows qmui_firstMatchWithBlock:^BOOL(__kindof UIWindow * _Nonnull item) {
         return [NSStringFromClass(item.class) isEqualToString:@"UIRemoteKeyboardWindow"];
     }];
     if (window) {
         return window;
     }
 
-    window = [UIApplication.sharedApplication.windows qmui_firstMatchWithBlock:^BOOL(__kindof UIWindow * _Nonnull item) {
+    window = [UIApplication.sharedApplication.qmui_windows qmui_firstMatchWithBlock:^BOOL(__kindof UIWindow * _Nonnull item) {
         return [NSStringFromClass(item.class) isEqualToString:@"UITextEffectsWindow"];
     }];
     return window;

QMUIKit/QMUIComponents/QMUIModalPresentationViewController.h

@@ -314,7 +314,7 @@ typedef NS_ENUM(NSUInteger, QMUIModalPresentationAnimationStyle) {
 
 @end
 
-/// 专用于QMUIModalPresentationViewController的UIWindow，这样才能在`UIApplication.sharedApplication.windows`里方便地区分出来
+/// 专用于QMUIModalPresentationViewController的UIWindow，这样才能在`UIApplication.sharedApplication.qmui_windows`里方便地区分出来
 @interface QMUIModalPresentationWindow : UIWindow
 
 @end

QMUIKit/QMUIComponents/QMUIModalPresentationViewController.m

@@ -15,6 +15,7 @@
 
 #import "QMUIModalPresentationViewController.h"
 #import "QMUICore.h"
+#import "UIApplication+QMUI.h"
 #import "UIViewController+QMUI.h"
 #import "UIView+QMUI.h"
 #import "QMUIKeyboardManager.h"
@@ -271,7 +272,7 @@ - (void)viewWillDisappear:(BOOL)animated {
 
         if (self.shownInWindowMode) {
             // 恢复 keyWindow 之前做一下检查，避免这个问题 https://github.com/Tencent/QMUI_iOS/issues/90
-            if (UIApplication.sharedApplication.keyWindow == self.window) {
+            if (UIApplication.sharedApplication.qmui_keyWindow == self.window) {
                 if (self.previousKeyWindow.hidden) {
                     // 保护了这个 issue 记录的情况，避免主 window 丢失 keyWindow https://github.com/Tencent/QMUI_iOS/issues/315
                     [UIApplication.sharedApplication.delegate.window makeKeyWindow];
@@ -505,7 +506,7 @@ - (void)showWithAnimated:(BOOL)animated completion:(void (^)(BOOL))completion {
     // makeKeyAndVisible 导致的 viewWillAppear: 必定 animated 是 NO 的，所以这里用额外的变量保存这个 animated 的值
     self.appearAnimated = animated;
     self.appearCompletionBlock = completion;
-    self.previousKeyWindow = UIApplication.sharedApplication.keyWindow;
+    self.previousKeyWindow = UIApplication.sharedApplication.qmui_keyWindow;
     if (!self.window) {
         self.window = [[QMUIModalPresentationWindow alloc] init];
         self.window.windowLevel = UIWindowLevelQMUIAlertView;
@@ -751,7 +752,7 @@ - (UIViewController *)childViewControllerForHomeIndicatorAutoHidden {
 @implementation QMUIModalPresentationViewController (Manager)
 
 + (BOOL)isAnyModalPresentationViewControllerVisible {
-    for (UIWindow *window in UIApplication.sharedApplication.windows) {
+    for (UIWindow *window in UIApplication.sharedApplication.qmui_windows) {
         if ([window isKindOfClass:[QMUIModalPresentationWindow class]] && !window.hidden) {
             return YES;
         }
@@ -763,7 +764,7 @@ + (BOOL)hideAllVisibleModalPresentationViewControllerIfCan {
 
     BOOL hideAllFinally = YES;
 
-    for (UIWindow *window in UIApplication.sharedApplication.windows) {
+    for (UIWindow *window in UIApplication.sharedApplication.qmui_windows) {
         if (![window isKindOfClass:[QMUIModalPresentationWindow class]]) {
             continue;
         }

QMUIKit/QMUIComponents/QMUIPopupContainerView.m

@@ -15,6 +15,7 @@
 
 #import "QMUIPopupContainerView.h"
 #import "QMUICore.h"
+#import "UIApplication+QMUI.h"
 #import "QMUICommonViewController.h"
 #import "UIViewController+QMUI.h"
 #import "QMUILog.h"
@@ -697,7 +698,7 @@ - (void)showWithAnimated:(BOOL)animated completion:(void (^)(BOOL))completion {
         QMUICommonViewController *viewController = (QMUICommonViewController *)self.popupWindow.rootViewController;
         viewController.supportedOrientationMask = [QMUIHelper visibleViewController].supportedInterfaceOrientations;
 
-        self.previousKeyWindow = UIApplication.sharedApplication.keyWindow;
+        self.previousKeyWindow = UIApplication.sharedApplication.qmui_keyWindow;
         [self.popupWindow makeKeyAndVisible];
 
         isShowingByWindowMode = YES;
@@ -798,7 +799,7 @@ - (void)hideWithAnimated:(BOOL)animated completion:(void (^)(BOOL))completion {
 - (void)hideCompletionWithWindowMode:(BOOL)windowMode completion:(void (^)(BOOL))completion {
     if (windowMode) {
         // 恢复 keyWindow 之前做一下检查，避免类似问题 https://github.com/Tencent/QMUI_iOS/issues/90
-        if (UIApplication.sharedApplication.keyWindow == self.popupWindow) {
+        if (UIApplication.sharedApplication.qmui_keyWindow == self.popupWindow) {
             [self.previousKeyWindow makeKeyWindow];
         }
 

QMUIKit/QMUIComponents/QMUITheme/QMUIThemeManager.m

@@ -14,6 +14,7 @@
 
 #import "QMUIThemeManager.h"
 #import "QMUICore.h"
+#import "UIApplication+QMUI.h"
 #import "UIView+QMUITheme.h"
 #import "UIViewController+QMUITheme.h"
 #import "QMUIThemePrivate.h"
@@ -137,7 +138,7 @@ - (void)removeTheme:(NSObject *)theme {
 - (void)notifyThemeChanged {
     [[NSNotificationCenter defaultCenter] postNotificationName:QMUIThemeDidChangeNotification object:self];
 
-    [UIApplication.sharedApplication.windows enumerateObjectsUsingBlock:^(__kindof UIWindow * _Nonnull window, NSUInteger idx, BOOL * _Nonnull stop) {
+    [UIApplication.sharedApplication.qmui_windows enumerateObjectsUsingBlock:^(__kindof UIWindow * _Nonnull window, NSUInteger idx, BOOL * _Nonnull stop) {
         if (!window.hidden && window.alpha > 0.01 && window.rootViewController) {
             [window.rootViewController qmui_themeDidChangeByManager:self identifier:self.currentThemeIdentifier theme:self.currentTheme];
 

QMUIKit/QMUICore/QMUICommonDefines.h

@@ -81,6 +81,11 @@
 #define IOS18_SDK_ALLOWED YES
 #endif
 
+#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 270000
+/// 当前编译使用的 Base SDK 版本为 iOS 27.0 及以上
+#define IOS27_SDK_ALLOWED YES
+#endif
+
 #pragma mark - Clang
 
 #define ArgumentToString(macro) #macro

QMUIKit/QMUICore/QMUIConfiguration.m

@@ -1029,7 +1029,7 @@ - (void)setDefaultStatusBarStyle:(UIStatusBarStyle)defaultStatusBarStyle {
 - (NSArray <UIViewController *>*)appearanceUpdatingViewControllersOfClasses:(NSArray<Class<UIAppearanceContainer>> *)classes {
     if (!classes.count) return nil;
     NSMutableArray *viewControllers = [NSMutableArray array];
-    [UIApplication.sharedApplication.windows enumerateObjectsUsingBlock:^(__kindof UIWindow * _Nonnull window, NSUInteger idx, BOOL * _Nonnull stop) {
+    [UIApplication.sharedApplication.qmui_windows enumerateObjectsUsingBlock:^(__kindof UIWindow * _Nonnull window, NSUInteger idx, BOOL * _Nonnull stop) {
         if (window.rootViewController) {
             [viewControllers addObjectsFromArray:[window.rootViewController qmui_existingViewControllersOfClasses:classes]];
         }

QMUIKit/UIKitExtensions/NSObject+QMUI.m

@@ -262,7 +262,25 @@ @implementation NSObject (QMUI_KeyValueCoding)
 - (id)qmui_valueForKey:(NSString *)key {
     if ([self isKindOfClass:[UIView class]] && QMUICMIActivated && !IgnoreKVCAccessProhibited) {
         BeginIgnoreUIKVCAccessProhibited
-        id value = [self valueForKey:key];
+
+        id value = nil;
+        // 修复：增加 KVC 键合法性校验，避免访问未定义的 key 导致崩溃
+        if ([self respondsToSelector:NSSelectorFromString(key)] ||
+            [self.class instancesRespondToSelector:NSSelectorFromString(key)] ||
+            [self.class accessInstanceVariablesDirectly]) {
+            // 方式1：优先通过 selector 访问（方法/属性）
+            SEL getterSel = NSSelectorFromString(key);
+            if ([self respondsToSelector:getterSel]) {
+                value = ((id (*)(id, SEL))objc_msgSend)(self, getterSel);
+            } else {
+                // 方式2：校验实例变量存在性后再通过 KVC 访问
+                Ivar ivar = class_getInstanceVariable([self class], [key UTF8String]);
+                if (ivar) {
+                    value = [self valueForKey:key];
+                }
+            }
+        }
+
         EndIgnoreUIKVCAccessProhibited
         return value;
     }

QMUIKit/UIKitExtensions/UIApplication+QMUI.h

@@ -20,6 +20,13 @@ NS_ASSUME_NONNULL_BEGIN
 
 /// 判断当前的 App 是否已经完全启动
 @property(nonatomic, assign, readonly) BOOL qmui_didFinishLaunching;
+
+/// 通过 Scene 获取当前 keyWindow，等价于 iOS 27 之前 `UIApplication.keyWindow` 的语义。若找不到则返回 nil。
+@property(nullable, nonatomic, readonly) UIWindow *qmui_keyWindow;
+
+/// 通过 Scene 聚合当前 App 的所有 window，等价于 iOS 27 之前 `UIApplication.windows` 的语义。
+@property(nonatomic, copy, readonly) NSArray<UIWindow *> *qmui_windows;
+
 @end
 
 NS_ASSUME_NONNULL_END

QMUIKit/UIKitExtensions/UIApplication+QMUI.m

@@ -15,6 +15,23 @@
 #import "UIApplication+QMUI.h"
 #import "QMUICore.h"
 
+static UIWindow *QMUIKeyWindowInWindowScenes(NSSet<UIScene *> *connectedScenes, NSIndexSet *allowedActivationStates) {
+    for (UIScene *scene in connectedScenes) {
+        if (![scene isKindOfClass:[UIWindowScene class]]) {
+            continue;
+        }
+        if (allowedActivationStates && ![allowedActivationStates containsIndex:scene.activationState]) {
+            continue;
+        }
+        for (UIWindow *window in ((UIWindowScene *)scene).windows) {
+            if (window.isKeyWindow) {
+                return window;
+            }
+        }
+    }
+    return nil;
+}
+
 @implementation UIApplication (QMUI)
 
 QMUISynthesizeBOOLProperty(qmui_didFinishLaunching, setQmui_didFinishLaunching)
@@ -45,4 +62,54 @@ - (void)qmui_handleDidFinishLaunchingNotification:(NSNotification *)notification
     [NSNotificationCenter.defaultCenter removeObserver:self name:UIApplicationDidFinishLaunchingNotification object:nil];
 }
 
+- (UIWindow *)qmui_keyWindow {
+    static NSIndexSet *foregroundActiveStates;
+    static NSIndexSet *foregroundStates;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        foregroundActiveStates = [NSIndexSet indexSetWithIndex:UISceneActivationStateForegroundActive];
+        NSMutableIndexSet *states = [NSMutableIndexSet indexSet];
+        [states addIndex:UISceneActivationStateForegroundInactive];
+        [states addIndex:UISceneActivationStateForegroundActive];
+        foregroundStates = states;
+    });
+
+    UIWindow *keyWindow = QMUIKeyWindowInWindowScenes(self.connectedScenes, foregroundActiveStates);
+    if (!keyWindow) {
+        keyWindow = QMUIKeyWindowInWindowScenes(self.connectedScenes, foregroundStates);
+    }
+    if (!keyWindow) {
+        keyWindow = QMUIKeyWindowInWindowScenes(self.connectedScenes, nil);
+    }
+#ifndef IOS27_SDK_ALLOWED
+    if (!keyWindow) {
+        BeginIgnoreDeprecatedWarning
+        keyWindow = self.keyWindow;
+        EndIgnoreDeprecatedWarning
+    }
+#endif
+    return keyWindow;
+}
+
+- (NSArray<UIWindow *> *)qmui_windows {
+    NSMutableArray<UIWindow *> *windows = [NSMutableArray array];
+    for (UIScene *scene in self.connectedScenes) {
+        if (![scene isKindOfClass:[UIWindowScene class]]) {
+            continue;
+        }
+        [windows addObjectsFromArray:((UIWindowScene *)scene).windows];
+    }
+    if (windows.count > 0) {
+        return windows;
+    }
+#ifndef IOS27_SDK_ALLOWED
+    BeginIgnoreDeprecatedWarning
+    NSArray<UIWindow *> *legacyWindows = self.windows;
+    EndIgnoreDeprecatedWarning
+    return legacyWindows ?: @[];
+#else
+    return @[];
+#endif
+}
+
 @end

QMUIKit/UIKitExtensions/UIMenuController+QMUI.m

@@ -14,6 +14,7 @@
 
 #import "UIMenuController+QMUI.h"
 #import "QMUICore.h"
+#import "UIApplication+QMUI.h"
 #import "NSArray+QMUI.h"
 
 @implementation UIMenuController (QMUI)
@@ -110,7 +111,7 @@ + (UIWindow *)qmuimc_menuControllerWindow {
     if (kMenuControllerWindow && !kMenuControllerWindow.hidden) {
         return kMenuControllerWindow;
     }
-    [UIApplication.sharedApplication.windows enumerateObjectsUsingBlock:^(__kindof UIWindow * _Nonnull window, NSUInteger idx, BOOL * _Nonnull stop) {
+    [UIApplication.sharedApplication.qmui_windows enumerateObjectsUsingBlock:^(__kindof UIWindow * _Nonnull window, NSUInteger idx, BOOL * _Nonnull stop) {
         NSString *windowString = [NSString stringWithFormat:@"UI%@%@", @"Text", @"EffectsWindow"];
         if ([window isKindOfClass:NSClassFromString(windowString)] && !window.hidden) {
             if (@available(iOS 16.0, *)) {
@@ -136,7 +137,7 @@ + (UIWindow *)qmuimc_menuControllerWindow {
 
 + (UIWindow *)qmuimc_firstResponderWindowExceptMainWindow {
     __block UIWindow *resultWindow = nil;
-    [UIApplication.sharedApplication.windows enumerateObjectsUsingBlock:^(__kindof UIWindow * _Nonnull window, NSUInteger idx, BOOL * _Nonnull stop) {
+    [UIApplication.sharedApplication.qmui_windows enumerateObjectsUsingBlock:^(__kindof UIWindow * _Nonnull window, NSUInteger idx, BOOL * _Nonnull stop) {
         if (window != UIApplication.sharedApplication.delegate.window) {
             UIResponder *responder = [UIMenuController qmuimc_findFirstResponderInView:window];
             if (responder) {

QMUIKit/UIKitExtensions/UINavigationBar+QMUI.m

@@ -359,6 +359,25 @@ + (void)load {
 }
 
 - (UIView *)qmui_contentView {
+    if (@available(iOS 26.0, *)) {
+        // 如果 contentView 已经被构造出来，则通过遍历 view 层级树的方式获取
+        UIView *contentView = [self.subviews qmui_firstMatchWithBlock:^BOOL(__kindof UIView * _Nonnull item) {
+            return [NSStringFromClass(item.class) containsString:@"ContentView"];
+        }];
+        if (contentView) return contentView;
+
+        // Xcode 26 编译在 iOS 26 上时，无法用以前的 KVC 方式获取 contentView，所以改为通过 Ivar 获取
+        NSObject *provider = [self valueForKey:@"visualProvider"];
+        __block UIView *result = nil;
+        [provider qmui_enumrateIvarsUsingBlock:^(Ivar  _Nonnull ivar, NSString * _Nonnull ivarDescription) {
+            if (!result && [ivarDescription containsString:@"contentView"]) {
+                result = getObjectIvarValue(provider, ivar);
+            }
+        }];
+        return result;
+    }
+
+    // 在 bar init 完即可获取到 contentView，虽然此时尚未被添加到 view 上
     return [self valueForKeyPath:@"visualProvider.contentView"];
 }
 

QMUIKit/UIKitExtensions/UIView+QMUI.m

@@ -50,7 +50,7 @@ + (void)load {
             if (selfObject == firstArgv && [selfObject conformsToProtocol:@protocol(UITextInput)]) {
                 // 像 QMUIModalPresentationViewController 那种以 window 的形式展示浮层，浮层里的输入框 becomeFirstResponder 的场景，[window makeKeyAndVisible] 被调用后，就会立即走到这里，但此时该 window 尚不是 keyWindow，所以这里延迟到下一个 runloop 里再去判断
                 dispatch_async(dispatch_get_main_queue(), ^{
-                    if (IS_DEBUG && ![selfObject isKindOfClass:[UIWindow class]] && selfObject.window && !selfObject.window.keyWindow) {
+                    if (IS_DEBUG && ![selfObject isKindOfClass:[UIWindow class]] && selfObject.window && !selfObject.window.isKeyWindow) {
                         [selfObject QMUISymbolicUIViewBecomeFirstResponderWithoutKeyWindow];
                     }
                 });