调整逻辑

keyBoard/Class/Guard/VC/KBGuideVC.m

@@ -27,6 +27,8 @@ typedef NS_ENUM(NSInteger, KBGuideItemType) {
 @property (nonatomic, strong) UITapGestureRecognizer *bgTap;// 点击空白收起键盘
 
 @property (nonatomic, strong) NSMutableArray<NSDictionary *> *items; // 数据源 [{type, text}]
+/// 权限引导页作为子控制器（用于“同时隐藏”）
+@property (nonatomic, strong, nullable) KBPermissionViewController *permVC;
 
 @end
 
@@ -80,6 +82,9 @@ typedef NS_ENUM(NSInteger, KBGuideItemType) {
 
     // 监听应用回到前台/变为活跃：用于从设置返回时再次校验权限
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(kb_checkKeyboardPermission) name:UIApplicationDidBecomeActiveNotification object:nil];
+
+    // 提前创建并铺满权限引导页（默认隐藏），避免后续显示时出现布局进场感
+    [self kb_preparePermissionOverlayIfNeeded];
 }
 
 - (void)dealloc {
@@ -101,23 +106,26 @@ typedef NS_ENUM(NSInteger, KBGuideItemType) {
     KBFARecord fa = [mgr lastKnownFullAccess];
     BOOL needGuide = (!enabled) || (enabled && fa == KBFARecordDenied);
 
-    UIViewController *top = [UIViewController kb_topMostViewController];
-    if (needGuide) {
-        if (![top isKindOfClass:[KBPermissionViewController class]]) {
-            KBPermissionViewController *guide = [KBPermissionViewController new];
-            guide.modalPresentationStyle = UIModalPresentationFullScreen;
-            __weak typeof(self) weakSelf = self;
-            guide.onBack = ^{
-                // 用户主动点击“返回”时，同步退出引导页
-                [weakSelf.navigationController popViewControllerAnimated:YES];
-            };
-            [top presentViewController:guide animated:YES completion:nil];
-        }
-    } else {
-        if ([top isKindOfClass:[KBPermissionViewController class]]) {
-            [top dismissViewControllerAnimated:YES completion:nil];
-        }
-    }
+    [self kb_preparePermissionOverlayIfNeeded];
+    BOOL show = needGuide;
+    [UIView performWithoutAnimation:^{
+        self.permVC.view.hidden = !show;
+    }];
+}
+
+/// 提前创建权限引导页覆盖层（仅一次）
+- (void)kb_preparePermissionOverlayIfNeeded {
+    if (self.permVC) return;
+    KBPermissionViewController *guide = [KBPermissionViewController new];
+    guide.modalPresentationStyle = UIModalPresentationFullScreen; // 仅用于内部布局，不会真正 present
+    KBWeakSelf;
+    guide.backHandler = ^{ [weakSelf.navigationController popViewControllerAnimated:YES]; };
+    self.permVC = guide;
+    [self addChildViewController:guide];
+    [self.view addSubview:guide.view];
+    [guide.view mas_makeConstraints:^(MASConstraintMaker *make) { make.edges.equalTo(self.view); }];
+    [guide didMoveToParentViewController:self];
+    guide.view.hidden = YES; // 初始隐藏
 }
 
 - (void)kb_didTapBackground {