1

CustomKeyboard/KeyboardViewController.m

@@ -234,7 +234,7 @@ static CGFloat KEYBOARDHEIGHT = 256 + 20;
     // 使用与主 App 一致的自定义 Scheme
     NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"%@@//login?src=keyboard", KB_APP_SCHEME]];
     if (!url) return;
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     [self.extensionContext openURL:url completionHandler:^(__unused BOOL success) {
         // 即使失败也不重复尝试；避免打扰。
         __unused typeof(weakSelf) selfStrong = weakSelf;

CustomKeyboard/View/KBFunctionView.m

@@ -259,7 +259,7 @@ static NSString * const kKBFunctionTagCellId = @"KBFunctionTagCellId";
     // 未开启“完全访问”时不做自动读取，避免宿主/系统拒绝并刷错误日志
     if (![[KBFullAccessManager shared] hasFullAccess]) return;
     if (self.pasteboardTimer) return;
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     self.pasteboardTimer = [NSTimer scheduledTimerWithTimeInterval:0.5 repeats:YES block:^(NSTimer * _Nonnull timer) {
         __strong typeof(weakSelf) self = weakSelf; if (!self) return;
         UIPasteboard *pb = [UIPasteboard generalPasteboard];

CustomKeyboard/View/KBKeyboardView.m

@@ -338,7 +338,6 @@
     if (before.length <= 0) { self.backspaceHoldActive = NO; return; }
     [proxy deleteBackward]; // 每次仅删 1 个
 
-    // 轻量递归调度下一次；不使用 NSTimer，避免复杂状态管理
     __weak typeof(self) weakSelf = self;
     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.06 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
         __strong typeof(weakSelf) selfStrong = weakSelf;

keyBoard.xcodeproj/project.pbxproj

@@ -76,6 +76,7 @@
 		04890A042EC0BBBB00FABA60 /* KBCategoryTitleImageCell.m in Sources */ = {isa = PBXBuildFile; fileRef = 04890A012EC0BBBB00FABA60 /* KBCategoryTitleImageCell.m */; };
 		04890A052EC0BBBB00FABA60 /* KBCategoryTitleImageView.m in Sources */ = {isa = PBXBuildFile; fileRef = 04890A032EC0BBBB00FABA60 /* KBCategoryTitleImageView.m */; };
 		049FB20B2EC1C13800FAB05D /* KBSkinBottomActionView.m in Sources */ = {isa = PBXBuildFile; fileRef = 049FB20A2EC1C13800FAB05D /* KBSkinBottomActionView.m */; };
+		049FB20E2EC1CD2800FAB05D /* KBAlert.m in Sources */ = {isa = PBXBuildFile; fileRef = 049FB20D2EC1CD2800FAB05D /* KBAlert.m */; };
 		04A9FE0F2EB481100020DB6D /* KBHUD.m in Sources */ = {isa = PBXBuildFile; fileRef = 04FC97082EB31B14007BD342 /* KBHUD.m */; };
 		04A9FE132EB4D0D20020DB6D /* KBFullAccessManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 04A9FE112EB4D0D20020DB6D /* KBFullAccessManager.m */; };
 		04A9FE162EB873C80020DB6D /* UIViewController+Extension.m in Sources */ = {isa = PBXBuildFile; fileRef = 04A9FE152EB873C80020DB6D /* UIViewController+Extension.m */; };
@@ -266,6 +267,8 @@
 		04890A032EC0BBBB00FABA60 /* KBCategoryTitleImageView.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KBCategoryTitleImageView.m; sourceTree = "<group>"; };
 		049FB2092EC1C13800FAB05D /* KBSkinBottomActionView.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KBSkinBottomActionView.h; sourceTree = "<group>"; };
 		049FB20A2EC1C13800FAB05D /* KBSkinBottomActionView.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KBSkinBottomActionView.m; sourceTree = "<group>"; };
+		049FB20C2EC1CD2800FAB05D /* KBAlert.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KBAlert.h; sourceTree = "<group>"; };
+		049FB20D2EC1CD2800FAB05D /* KBAlert.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KBAlert.m; sourceTree = "<group>"; };
 		04A9A67D2EB9E1690023B8F4 /* KBResponderUtils.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KBResponderUtils.h; sourceTree = "<group>"; };
 		04A9FE102EB4D0D20020DB6D /* KBFullAccessManager.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = KBFullAccessManager.h; sourceTree = "<group>"; };
 		04A9FE112EB4D0D20020DB6D /* KBFullAccessManager.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = KBFullAccessManager.m; sourceTree = "<group>"; };
@@ -544,6 +547,10 @@
 		048908B82EBDC11200FABA60 /* V */ = {
 			isa = PBXGroup;
 			children = (
+				04FC97072EB31B14007BD342 /* KBHUD.h */,
+				04FC97082EB31B14007BD342 /* KBHUD.m */,
+				049FB20C2EC1CD2800FAB05D /* KBAlert.h */,
+				049FB20D2EC1CD2800FAB05D /* KBAlert.m */,
 			);
 			path = V;
 			sourceTree = "<group>";
@@ -968,8 +975,6 @@
 				04FC970B2EB334F8007BD342 /* UIImageView+KBWebImage.m */,
 				04FC970C2EB334F8007BD342 /* KBWebImageManager.h */,
 				04FC970D2EB334F8007BD342 /* KBWebImageManager.m */,
-				04FC97072EB31B14007BD342 /* KBHUD.h */,
-				04FC97082EB31B14007BD342 /* KBHUD.m */,
 				04A9FE142EB873C80020DB6D /* UIViewController+Extension.h */,
 				04A9FE152EB873C80020DB6D /* UIViewController+Extension.m */,
 				047C655A2EBCD08E0035E841 /* UIView+KBShadow.h */,
@@ -1338,6 +1343,7 @@
 				0477BE002EBC6A330055D639 /* HomeRankVC.m in Sources */,
 				047C650D2EBC8A840035E841 /* KBPanModalView.m in Sources */,
 				043FBCD22EAF97630036AFE1 /* KBPermissionViewController.m in Sources */,
+				049FB20E2EC1CD2800FAB05D /* KBAlert.m in Sources */,
 				04A9FE162EB873C80020DB6D /* UIViewController+Extension.m in Sources */,
 				04C6EABE2EAF86530089C901 /* AppDelegate.m in Sources */,
 				04FC95F12EB339A7007BD342 /* LoginViewController.m in Sources */,

keyBoard/Class/Categories/UIViewController+Extension.m

@@ -34,13 +34,25 @@ static inline __kindof UIWindow *KBActiveWindow(void) {
 
 + (UIViewController *)kb_topMostViewController {
     UIWindow *window = KBActiveWindow();
-    UIViewController *root = window.rootViewController;
+    UIViewController *vc = window.rootViewController;
-    if (!root) return nil;
+    if (!vc) return nil;
-    UIViewController *top = root;
+    // 展开容器控制器
-    while (top.presentedViewController) {
+    while (1) {
-        top = top.presentedViewController;
+        if ([vc isKindOfClass:UINavigationController.class]) {
+            vc = ((UINavigationController *)vc).visibleViewController ?: vc;
+            continue;
+        }
+        if ([vc isKindOfClass:UITabBarController.class]) {
+            vc = ((UITabBarController *)vc).selectedViewController ?: vc;
+            continue;
+        }
+        if (vc.presentedViewController) {
+            vc = vc.presentedViewController;
+            continue;
+        }
+        break;
     }
-    return top;
+    return vc;
 }
 
 @end

keyBoard/Class/Common/V/KBAlert.h

@@ -0,0 +1,75 @@
+//
+//  KBAlert.h
+//  keyBoard
+//
+//  系统 UIAlertController 的轻量封装：更易用、更健壮。
+//  特性：
+//  - 任意线程调用；内部切回主线程
+//  - 自动找到可展示的 VC（使用顶层 presented VC）
+//  - Alert 队列：避免“正在展示时再次 present 失败”的崩溃/警告
+//  - iPad ActionSheet 自动设置 popover 锚点（无需关心 sourceView）
+//  - 常见场景一行调用：提示/确认/输入框/操作表
+//  - 可选指定展示的 VC（如在 Extension 内）
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef void (^KBAlertBoolHandler)(BOOL ok);
+typedef void (^KBAlertIndexHandler)(NSInteger index);
+typedef void (^KBAlertTextHandler)(NSString * _Nullable text, BOOL ok);
+
+@interface KBAlert : NSObject
+
+/// 指定一个缺省的“用于 present 的 VC”。
+/// - 适用：App Extension 或自管理容器场景；App 内一般无需设置。
+/// - 注意：弱引用；随时可被释放。
++ (void)setDefaultPresenter:(nullable __kindof UIViewController *)presenter;
+
+#pragma mark - 简单提示（单按钮）
+/// 标准 OK 提示；按钮文案默认为“好”或“OK”。
++ (void)showTitle:(nullable NSString *)title message:(nullable NSString *)message;
+/// 自定义按钮文案与回调。
++ (void)showTitle:(nullable NSString *)title
+          message:(nullable NSString *)message
+           button:(nullable NSString *)button
+       completion:(dispatch_block_t)completion;
+
+#pragma mark - 确认对话框（双按钮）
+/// 默认“取消/确定”按钮，回调 ok=YES 表示点击了确定。
++ (void)confirmTitle:(nullable NSString *)title
+             message:(nullable NSString *)message
+          completion:(KBAlertBoolHandler)completion;
+/// 自定义按钮文案。
++ (void)confirmTitle:(nullable NSString *)title
+             message:(nullable NSString *)message
+                 ok:(nullable NSString *)okTitle
+             cancel:(nullable NSString *)cancelTitle
+          completion:(KBAlertBoolHandler)completion;
+
+#pragma mark - 输入框（单行）
+/// 带单个输入框；ok=YES 时返回输入内容。
++ (void)promptTitle:(nullable NSString *)title
+            message:(nullable NSString *)message
+        placeholder:(nullable NSString *)placeholder
+                 ok:(nullable NSString *)okTitle
+             cancel:(nullable NSString *)cancelTitle
+      keyboardType:(UIKeyboardType)type
+     configuration:(void (^ _Nullable)(UITextField *tf))config
+          completion:(KBAlertTextHandler)completion;
+
+#pragma mark - 操作表（ActionSheet）
+/// 操作表；index 为点击项序号，按 actions 顺序从 0 开始；取消返回 -1。
++ (void)actionSheetTitle:(nullable NSString *)title
+                 message:(nullable NSString *)message
+                 actions:(NSArray<NSString *> *)actions
+                cancel:(nullable NSString *)cancelTitle
+       destructiveIndex:(NSInteger)destructiveIndex // 传入 -1 表示无
+                fromView:(nullable UIView *)anchorView // iPad 可指定锚点；传 nil 自动居中
+               completion:(KBAlertIndexHandler)completion;
+
+@end
+
+NS_ASSUME_NONNULL_END
+

keyBoard/Class/Common/V/KBAlert.m

@@ -0,0 +1,224 @@
+//
+//  KBAlert.m
+//  keyBoard
+//
+
+#import "KBAlert.h"
+#import <UIKit/UIKit.h>
+#import "UIViewController+Extension.h"
+
+@implementation KBAlert
+
+// 简单的串行展示队列，避免重复 present 引发的异常
+static NSMutableArray<dispatch_block_t> *sQueue;
+static BOOL sPresenting = NO;
+static __weak UIViewController *sDefaultPresenter = nil; // 可选外部指定的 presenter（弱引用）
+
+#pragma mark - Helpers
+
++ (void)initialize {
+    if (self == KBAlert.class) {
+        sQueue = [NSMutableArray array];
+    }
+}
+
++ (void)onMain:(dispatch_block_t)blk {
+    if (NSThread.isMainThread) { blk(); } else { dispatch_async(dispatch_get_main_queue(), blk); }
+}
+
++ (UIViewController *)presentingVC {
+    // 优先使用外部指定的 presenter；否则找顶层
+    UIViewController *vc = sDefaultPresenter;
+    if (!vc) {
+        vc = [UIViewController kb_topMostViewController];
+    }
+    return vc;
+}
+
++ (void)enqueuePresent:(dispatch_block_t)presenter {
+    [self onMain:^{
+        [sQueue addObject:[presenter copy]];
+        if (!sPresenting) { [self _dequeueAndPresentNext]; }
+    }];
+}
+
++ (void)_dequeueAndPresentNext {
+    if (sPresenting || sQueue.count == 0) { return; }
+    sPresenting = YES;
+    dispatch_block_t blk = sQueue.firstObject;
+    [sQueue removeObjectAtIndex:0];
+    blk();
+}
+
+// 在任意 action 执行后调用，标记结束并尝试继续队列
++ (void)_markFinishedAndContinue {
+    // 延迟到下一个 runloop 以确保系统完成 dismiss 流程
+    dispatch_async(dispatch_get_main_queue(), ^{
+        sPresenting = NO;
+        [self _dequeueAndPresentNext];
+    });
+}
+
+// iPad 的 ActionSheet 需要 popover 锚点；此处自动兜底
++ (void)configurePopoverIfNeeded:(UIAlertController *)ac anchorView:(UIView *)anchorView inVC:(UIViewController *)vc {
+    if (ac.preferredStyle != UIAlertControllerStyleActionSheet) { return; }
+    UIPopoverPresentationController *pop = ac.popoverPresentationController;
+    if (!pop) { return; }
+    if (anchorView) {
+        pop.sourceView = anchorView;
+        pop.sourceRect = anchorView.bounds;
+    } else if (vc.view) {
+        pop.sourceView = vc.view;
+        CGSize sz = vc.view.bounds.size;
+        CGRect r = CGRectMake(MAX(0, sz.width * 0.5 - 1), MAX(0, sz.height * 0.5 - 1), 2, 2);
+        pop.sourceRect = r; // 居中一个很小的矩形，视觉近似居中弹出
+        pop.permittedArrowDirections = 0;
+    }
+}
+
+#pragma mark - Public API
+
++ (void)setDefaultPresenter:(UIViewController *)presenter { sDefaultPresenter = presenter; }
+
++ (void)showTitle:(NSString *)title message:(NSString *)message {
+    [self showTitle:title message:message button:nil completion:nil];
+}
+
++ (void)showTitle:(NSString *)title
+          message:(NSString *)message
+           button:(NSString *)button
+       completion:(dispatch_block_t)completion {
+    [self enqueuePresent:^{
+        UIViewController *vc = [self presentingVC];
+        if (!vc) { // 无法获取 presenter，直接结束队列
+            [self _markFinishedAndContinue];
+            return;
+        }
+        NSString *ok = button ?: (NSLocalizedString(@"OK", nil).length ? NSLocalizedString(@"OK", nil) : @"好");
+        UIAlertController *ac = [UIAlertController alertControllerWithTitle:(title ?: @"")
+                                                                   message:(message ?: @"")
+                                                            preferredStyle:UIAlertControllerStyleAlert];
+        __weak UIAlertController *wac = ac;
+        UIAlertAction *okAct = [UIAlertAction actionWithTitle:ok style:UIAlertActionStyleDefault handler:^(__unused UIAlertAction * _Nonnull action) {
+            if (completion) { completion(); }
+            // 防止异常：确保 alert 被关闭
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        [ac addAction:okAct];
+        [vc presentViewController:ac animated:YES completion:nil];
+    }];
+}
+
++ (void)confirmTitle:(NSString *)title message:(NSString *)message completion:(KBAlertBoolHandler)completion {
+    [self confirmTitle:title message:message ok:nil cancel:nil completion:completion];
+}
+
++ (void)confirmTitle:(NSString *)title
+             message:(NSString *)message
+                 ok:(NSString *)okTitle
+             cancel:(NSString *)cancelTitle
+          completion:(KBAlertBoolHandler)completion {
+    [self enqueuePresent:^{
+        UIViewController *vc = [self presentingVC];
+        if (!vc) { [self _markFinishedAndContinue]; return; }
+        NSString *ok = okTitle ?: @"确定";
+        NSString *cancel = cancelTitle ?: @"取消";
+        UIAlertController *ac = [UIAlertController alertControllerWithTitle:(title ?: @"")
+                                                                   message:(message ?: @"")
+                                                            preferredStyle:UIAlertControllerStyleAlert];
+        __weak UIAlertController *wac = ac;
+        UIAlertAction *cancelAct = [UIAlertAction actionWithTitle:cancel style:UIAlertActionStyleCancel handler:^(__unused UIAlertAction * _Nonnull a) {
+            if (completion) { completion(NO); }
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        UIAlertAction *okAct = [UIAlertAction actionWithTitle:ok style:UIAlertActionStyleDefault handler:^(__unused UIAlertAction * _Nonnull a) {
+            if (completion) { completion(YES); }
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        [ac addAction:cancelAct];
+        [ac addAction:okAct];
+        [vc presentViewController:ac animated:YES completion:nil];
+    }];
+}
+
++ (void)promptTitle:(NSString *)title
+            message:(NSString *)message
+        placeholder:(NSString *)placeholder
+                 ok:(NSString *)okTitle
+             cancel:(NSString *)cancelTitle
+      keyboardType:(UIKeyboardType)type
+     configuration:(void (^)(UITextField * _Nonnull))config
+          completion:(KBAlertTextHandler)completion {
+    [self enqueuePresent:^{
+        UIViewController *vc = [self presentingVC];
+        if (!vc) { [self _markFinishedAndContinue]; return; }
+        NSString *ok = okTitle ?: @"确定";
+        NSString *cancel = cancelTitle ?: @"取消";
+        UIAlertController *ac = [UIAlertController alertControllerWithTitle:(title ?: @"")
+                                                                   message:(message ?: @"")
+                                                            preferredStyle:UIAlertControllerStyleAlert];
+        __weak UIAlertController *wac = ac;
+        [ac addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull tf) {
+            tf.placeholder = placeholder;
+            tf.keyboardType = type;
+            if (config) { config(tf); }
+        }];
+        UIAlertAction *cancelAct = [UIAlertAction actionWithTitle:cancel style:UIAlertActionStyleCancel handler:^(__unused UIAlertAction * _Nonnull a) {
+            if (completion) { completion(nil, NO); }
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        UIAlertAction *okAct = [UIAlertAction actionWithTitle:ok style:UIAlertActionStyleDefault handler:^(__unused UIAlertAction * _Nonnull a) {
+            NSString *text = wac.textFields.firstObject.text;
+            if (completion) { completion(text, YES); }
+            [wac dismissViewControllerAnimated:YES completion:nil];
+            [KBAlert _markFinishedAndContinue];
+        }];
+        [ac addAction:cancelAct];
+        [ac addAction:okAct];
+        [vc presentViewController:ac animated:YES completion:nil];
+    }];
+}
+
++ (void)actionSheetTitle:(NSString *)title
+                 message:(NSString *)message
+                 actions:(NSArray<NSString *> *)actions
+                  cancel:(NSString *)cancelTitle
+       destructiveIndex:(NSInteger)destructiveIndex
+                fromView:(UIView *)anchorView
+               completion:(KBAlertIndexHandler)completion {
+    [self enqueuePresent:^{
+        UIViewController *vc = [self presentingVC];
+        if (!vc) { [self _markFinishedAndContinue]; return; }
+        UIAlertController *ac = [UIAlertController alertControllerWithTitle:(title ?: @"")
+                                                                   message:(message ?: @"")
+                                                            preferredStyle:UIAlertControllerStyleActionSheet];
+        __weak UIAlertController *wac = ac;
+        [actions enumerateObjectsUsingBlock:^(NSString * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
+            UIAlertActionStyle style = (destructiveIndex >= 0 && (NSInteger)idx == destructiveIndex) ? UIAlertActionStyleDestructive : UIAlertActionStyleDefault;
+            UIAlertAction *act = [UIAlertAction actionWithTitle:obj ?: @"" style:style handler:^(__unused UIAlertAction * _Nonnull a) {
+                if (completion) { completion((NSInteger)idx); }
+                [wac dismissViewControllerAnimated:YES completion:nil];
+                [KBAlert _markFinishedAndContinue];
+            }];
+            [ac addAction:act];
+        }];
+        if (cancelTitle.length) {
+            UIAlertAction *cancel = [UIAlertAction actionWithTitle:cancelTitle style:UIAlertActionStyleCancel handler:^(__unused UIAlertAction * _Nonnull a) {
+                if (completion) { completion(-1); }
+                [wac dismissViewControllerAnimated:YES completion:nil];
+                [KBAlert _markFinishedAndContinue];
+            }];
+            [ac addAction:cancel];
+        }
+
+        [self configurePopoverIfNeeded:ac anchorView:anchorView inVC:vc];
+        [vc presentViewController:ac animated:YES completion:nil];
+    }];
+}
+
+@end
+

keyBoard/Class/Home/VC/HomeRankContentVC.m

@@ -75,7 +75,7 @@
                         desc:d[@"desc"]
                       people:d[@"people"]
                        added:added];
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     cell.onTapAction = ^{
         // 切换添加/已添加状态并刷新该项
         NSMutableArray *m = [weakSelf.dataSource mutableCopy];

keyBoard/Class/Login/VC/KBLoginSheetViewController.m

@@ -132,7 +132,7 @@
 
 - (void)onContinue {
     LoginViewController *login = [LoginViewController new];
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     login.onLoginSuccess = ^(NSDictionary * _Nonnull userInfo) {
         __strong typeof(weakSelf) self = weakSelf; if (!self) return;
         [self dismissViewControllerAnimated:YES completion:^{

keyBoard/Class/Login/VC/LoginViewController.m

@@ -114,7 +114,7 @@
 }
 
 - (void)handleAppleIDButtonPress API_AVAILABLE(ios(13.0)) {
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     [[AppleSignInManager shared] signInFromViewController:self completion:^(ASAuthorizationAppleIDCredential * _Nullable credential, NSError * _Nullable error) {
         __strong typeof(weakSelf) selfStrong = weakSelf;
         if (error) {

keyBoard/Class/Me/VC/KBSkinDetailVC.m

@@ -182,7 +182,7 @@ typedef NS_ENUM(NSInteger, KBSkinDetailSection) {
         _bottomBar = [[KBSkinBottomActionView alloc] init];
         // 中文注释：配置文案与图标，可根据业务传入金币图/价格
         [_bottomBar configWithTitle:@"Download" price:@"20" icon:nil];
-        __weak typeof(self) weakSelf = self;
+        KBWeakSelf
         _bottomBar.tapHandler = ^{
             // 示例：点击下载/购买
 //            [KBHUD showText:@"点击了下载"];

keyBoard/Class/Me/VC/MySkinVC.m

@@ -55,7 +55,7 @@ static NSString * const kMySkinCellId = @"kMySkinCellId";
     }];
 
     // 空态视图（LYEmptyView）统一样式 + 重试按钮
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     [self.collectionView kb_makeDefaultEmptyViewWithImage:nil
                                                     title:@"暂无皮肤"
                                                    detail:@"下拉刷新试试"

keyBoard/Class/Search/VC/KBSearchResultVC.m

@@ -152,7 +152,7 @@ static NSString * const kResultCellId = @"KBSkinCardCell";
     if (!_searchBarView) {
         _searchBarView = [[KBSearchBarView alloc] init];
         _searchBarView.placeholder = @"Themes";
-        __weak typeof(self) weakSelf = self;
+        KBWeakSelf
         _searchBarView.onSearch = ^(NSString * _Nonnull keyword) {
             [weakSelf performSearch:keyword];
         };

keyBoard/Class/Search/VC/KBSearchVC.m

@@ -285,7 +285,7 @@ typedef NS_ENUM(NSInteger, KBSearchSection) {
         if (indexPath.section == KBSearchSectionHistory) {
             // 当没有历史时，外部通过 sizeForHeader 返回 0，这里仍设置但不会显示
             [header configWithTitle:@"Historical Search" showTrash:self.historyWords.count > 0];
-            __weak typeof(self) weakSelf = self;
+            KBWeakSelf
             header.onTapTrash = ^{ [weakSelf clearHistory]; };
         } else {
             [header configWithTitle:@"Recommended Skin" showTrash:NO];
@@ -363,7 +363,7 @@ typedef NS_ENUM(NSInteger, KBSearchSection) {
     if (!_searchBarView) {
         _searchBarView = [[KBSearchBarView alloc] init];
         _searchBarView.placeholder = @"Themes";
-        __weak typeof(self) weakSelf = self;
+        KBWeakSelf
         _searchBarView.onSearch = ^(NSString * _Nonnull keyword) {
             // 置顶到历史 + 打开结果页
             [weakSelf performSearch:keyword];

keyBoard/Class/Shop/VC/KBShopItemVC.m

@@ -27,7 +27,7 @@
     }];
 
     // 刷新组件（演示：2 秒后结束）
-    __weak typeof(self) weakSelf = self;
+    KBWeakSelf
     if (self.isNeedHeader) {
         self.collectionView.mj_header = [MJRefreshNormalHeader headerWithRefreshingBlock:^{
             dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

keyBoard/KeyBoardPrefixHeader.pch

@@ -21,6 +21,7 @@
 /// 系统
 #import <UIKit/UIKit.h>
 #import "KBHUD.h"
+#import "KBAlert.h"
 #import "KBNetworkManager.h"