1

keyBoard/Class/Guard/VC/KBGuideVC.m

@@ -9,6 +9,8 @@
 #import "KBGuideTopCell.h"
 #import "KBGuideKFCell.h"
 #import "KBGuideUserCell.h"
+#import "KBPermissionViewController.h"
+#import "KBKeyboardPermissionManager.h"
 
 typedef NS_ENUM(NSInteger, KBGuideItemType) {
     KBGuideItemTypeTop = 0,   // 顶部固定卡片
@@ -75,12 +77,49 @@ typedef NS_ENUM(NSInteger, KBGuideItemType) {
     self.bgTap.cancelsTouchesInView = NO;
     self.bgTap.delegate = self;
     [self.tableView addGestureRecognizer:self.bgTap];
+
+    // 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];
 }
 
 - (void)dealloc {
     [[NSNotificationCenter defaultCenter] removeObserver:self];
 }
 
+- (void)viewWillAppear:(BOOL)animated {
+    [super viewWillAppear:animated];
+    // 每次进入页面都校验一次（包括从其它页面返回）
+    [self kb_checkKeyboardPermission];
+}
+
+/// 校验键盘权限：
+/// - 未启用或已启用但拒绝完全访问 => 弹出引导页
+/// - 已满足条件且正在展示引导页 => 关闭引导页
+- (void)kb_checkKeyboardPermission {
+    KBKeyboardPermissionManager *mgr = [KBKeyboardPermissionManager shared];
+    BOOL enabled = [mgr isKeyboardEnabled];
+    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];
+        }
+    }
+}
+
 - (void)kb_didTapBackground {
     // 结束编辑，隐藏键盘
     [self.view endEditing:YES];