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CustomKeyboard/View/KBKeyboardView.h

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+//
+//  KBKeyboardView.h
+//  CustomKeyboard
+//
+//  键盘主容器，内部管理按键行布局。
+//
+
+#import <UIKit/UIKit.h>
+
+@class KBKeyboardView, KBKey;
+
+typedef NS_ENUM(NSInteger, KBKeyboardLayoutStyle) {
+    KBKeyboardLayoutStyleLetters = 0,
+    KBKeyboardLayoutStyleNumbers
+};
+
+@protocol KBKeyboardViewDelegate <NSObject>
+@optional
+/// 键被点击的回调
+- (void)keyboardView:(KBKeyboardView *)keyboard didTapKey:(KBKey *)key;
+@end
+
+@interface KBKeyboardView : UIView
+
+@property (nonatomic, weak) id<KBKeyboardViewDelegate> delegate;
+@property (nonatomic, assign) KBKeyboardLayoutStyle layoutStyle; // 布局样式（字母/数字）
+@property (nonatomic, assign, getter=isShiftOn) BOOL shiftOn;    // 大小写状态
+
+- (void)reloadKeys; // 当布局样式/大小写变化时调用
+
+@end