extension添加提示

keyBoard/Class/Categories/KBHUD.h

@@ -11,6 +11,7 @@
 //
 
 #import <Foundation/Foundation.h>
+@class UIView; // forward declare to avoid importing UIKit in header
 
 typedef NS_ENUM(NSUInteger, KBHUDMaskType) {
     /// 不加遮罩，事件可透传到后面的视图（与 SVProgressHUDMaskTypeNone 类似）
@@ -59,6 +60,13 @@ NS_ASSUME_NONNULL_BEGIN
 /// 设置自动隐藏的时长（success/error/info），默认 1.2s
 + (void)setAutoDismissInterval:(NSTimeInterval)interval;
 
+/// 设置缺省承载视图（App Extension 环境下必须设置，例如在键盘扩展里传入 self.view）
+/// 注意：内部弱引用，不会形成循环引用。
+/// 若不设置，在非 Extension 的 App 内默认加到 KeyWindow；在 Extension 内将不会显示。
+/// 可在 viewDidLoad 或 viewDidAppear 调用一次即可。
+/// @param view 作为 HUD 的承载父视图
+ + (void)setContainerView:(nullable UIView *)view;
+
 @end
 
 NS_ASSUME_NONNULL_END

keyBoard/Class/Categories/KBHUD.m

@@ -5,6 +5,7 @@
 
 #import "KBHUD.h"
 #import <MBProgressHUD/MBProgressHUD.h>
+#import <UIKit/UIKit.h>
 
 #ifndef KBSCREEN
 #define KBSCREEN [UIScreen mainScreen].bounds.size
@@ -16,6 +17,7 @@ static __weak MBProgressHUD *sHUD = nil;
 static KBHUDMaskType sMaskType = KBHUDMaskTypeClear;   // 全局默认遮罩
 static BOOL sDefaultTapToDismiss = NO;                  // 全局默认：不允许点击关闭
 static NSTimeInterval sAutoDismiss = 1.2;
+static __weak UIView *sContainerView = nil;             // 缺省承载视图（扩展里必须设置）
 
 #pragma mark - Private Helpers
 
@@ -24,11 +26,37 @@ static NSTimeInterval sAutoDismiss = 1.2;
 }
 
 + (MBProgressHUD *)ensureHUDWithMask:(KBHUDMaskType)mask tap:(BOOL)tap {
+    // 先尝试使用外部指定的容器视图（扩展环境推荐）
+    UIView *hostView = sContainerView;
+#ifndef KB_APP_EXTENSION
+    // App 内退回到 KeyWindow
+    if (!hostView) {
+        // KB_KeyWindow 在 App 目标的 PrefixHeader 中定义；在扩展内不依赖它
+        UIWindow *win = nil;
+        // 避免强依赖某个前缀：这里以运行时方式访问 UIApplication 以规避编译期的 App Extension 限制
+        Class uiAppClass = NSClassFromString(@"UIApplication");
+        if (uiAppClass && [uiAppClass respondsToSelector:@selector(sharedApplication)]) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
+            id app = [uiAppClass performSelector:@selector(sharedApplication)];
+            if ([app respondsToSelector:@selector(keyWindow)]) {
+                win = [app keyWindow];
+            }
+            if (!win && [app respondsToSelector:@selector(windows)]) {
+                NSArray *wins = [app windows];
+                win = wins.firstObject;
+            }
+#pragma clang diagnostic pop
+        }
+        hostView = win;
+    }
+#endif
+
+    if (!hostView) { return nil; }
+
     MBProgressHUD *hud = sHUD;
     if (!hud) {
-        UIWindow *win = KB_KeyWindow();
-        if (!win) { win = UIApplication.sharedApplication.windows.firstObject; }
-        hud = [MBProgressHUD showHUDAddedTo:win animated:YES];
+        hud = [MBProgressHUD showHUDAddedTo:hostView animated:YES];
         sHUD = hud;
         // 外观：深色圆角，白色文字，模仿 SVProgressHUD 默认
         hud.removeFromSuperViewOnHide = YES;
@@ -92,6 +120,7 @@ static NSTimeInterval sAutoDismiss = 1.2;
 + (void)_showText:(NSString *)text icon:(nullable UIImage *)icon {
     [self onMain:^{
         MBProgressHUD *hud = [self ensureHUDWithMask:sMaskType tap:sDefaultTapToDismiss];
+        if (!hud) { return; }
         hud.mode = icon ? MBProgressHUDModeCustomView : MBProgressHUDModeText;
         hud.label.text = text ?: @"";
         hud.detailsLabel.text = nil;
@@ -114,6 +143,7 @@ static NSTimeInterval sAutoDismiss = 1.2;
 + (void)showWithStatus:(NSString *)status allowTapToDismiss:(BOOL)allow {
     [self onMain:^{
         MBProgressHUD *hud = [self ensureHUDWithMask:sMaskType tap:allow];
+        if (!hud) { return; }
         hud.mode = MBProgressHUDModeIndeterminate;
         hud.label.text = status ?: @"";
     }];
@@ -126,6 +156,7 @@ static NSTimeInterval sAutoDismiss = 1.2;
 + (void)showProgress:(float)progress status:(NSString *)status allowTapToDismiss:(BOOL)allow {
     [self onMain:^{
         MBProgressHUD *hud = [self ensureHUDWithMask:sMaskType tap:allow];
+        if (!hud) { return; }
         hud.mode = MBProgressHUDModeDeterminate;
         hud.progress = progress;
         hud.label.text = status ?: @"";
@@ -162,4 +193,8 @@ static NSTimeInterval sAutoDismiss = 1.2;
     [self showWithStatus:nil allowTapToDismiss:allow];
 }
 
++ (void)setContainerView:(UIView *)view {
+    sContainerView = view;
+}
+
 @end