处理tabbar

keyBoard/Class/Base/V/KBCustomTabBar.h

@@ -0,0 +1,32 @@
+//
+//  KBCustomTabBar.h
+//  keyBoard
+//
+//  Created by Assistant on 2026/01/16.
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class KBCustomTabBar;
+
+@protocol KBCustomTabBarDelegate <NSObject>
+
+- (void)customTabBar:(KBCustomTabBar *)tabBar
+    didSelectItemAtIndex:(NSInteger)index;
+
+@end
+
+@interface KBCustomTabBar : UIView
+
+@property(nonatomic, weak) id<KBCustomTabBarDelegate> delegate;
+@property(nonatomic, assign) NSInteger selectedIndex;
+
+- (instancetype)initWithItems:(NSArray<UITabBarItem *> *)items;
+- (void)setSelectedIndex:(NSInteger)selectedIndex animated:(BOOL)animated;
+- (void)setTransparentBackground:(BOOL)transparent;
+
+@end
+
+NS_ASSUME_NONNULL_END

keyBoard/Class/Base/V/KBCustomTabBar.m

@@ -0,0 +1,159 @@
+//
+//  KBCustomTabBar.m
+//  keyBoard
+//
+//  Created by Assistant on 2026/01/16.
+//
+
+#import "KBCustomTabBar.h"
+#import "Masonry.h"
+
+@interface KBCustomTabBar ()
+
+@property(nonatomic, strong) NSArray<UITabBarItem *> *items;
+@property(nonatomic, strong) NSMutableArray<UIButton *> *buttons;
+@property(nonatomic, strong) UIView *backgroundView;
+
+@end
+
+@implementation KBCustomTabBar
+
+- (instancetype)initWithItems:(NSArray<UITabBarItem *> *)items {
+  self = [super initWithFrame:CGRectZero];
+  if (self) {
+    _items = items;
+    _selectedIndex = 0;
+    _buttons = [NSMutableArray array];
+    [self setupUI];
+  }
+  return self;
+}
+
+- (void)setupUI {
+  // 背景视图
+  self.backgroundView = [[UIView alloc] init];
+  self.backgroundView.backgroundColor = [UIColor whiteColor];
+  [self addSubview:self.backgroundView];
+  [self.backgroundView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.edges.equalTo(self);
+  }];
+
+  // 创建按钮
+  UIStackView *stackView = [[UIStackView alloc] init];
+  stackView.axis = UILayoutConstraintAxisHorizontal;
+  stackView.distribution = UIStackViewDistributionFillEqually;
+  stackView.alignment = UIStackViewAlignmentFill;
+  [self addSubview:stackView];
+  [stackView mas_makeConstraints:^(MASConstraintMaker *make) {
+    make.edges.equalTo(self);
+  }];
+
+  for (NSInteger i = 0; i < self.items.count; i++) {
+    UITabBarItem *item = self.items[i];
+    UIButton *button = [self createButtonWithItem:item index:i];
+    [stackView addArrangedSubview:button];
+    [self.buttons addObject:button];
+  }
+
+  // 设置初始选中状态
+  [self updateButtonStates];
+}
+
+- (UIButton *)createButtonWithItem:(UITabBarItem *)item index:(NSInteger)index {
+  UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
+  button.tag = index;
+
+  // 设置图片
+  [button setImage:item.image forState:UIControlStateNormal];
+  [button setImage:item.selectedImage forState:UIControlStateSelected];
+
+  // 设置标题
+  [button setTitle:item.title forState:UIControlStateNormal];
+  [button setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
+  [button setTitleColor:[UIColor blackColor] forState:UIControlStateSelected];
+  button.titleLabel.font = [UIFont systemFontOfSize:10];
+
+  // 布局：图片在上，文字在下
+  button.imageView.contentMode = UIViewContentModeScaleAspectFit;
+  button.titleLabel.textAlignment = NSTextAlignmentCenter;
+
+  // 调整图片和文字位置
+  CGFloat spacing = 4.0;
+  button.imageEdgeInsets = UIEdgeInsetsMake(-spacing, 0, spacing, 0);
+  button.titleEdgeInsets = UIEdgeInsetsMake(
+      spacing, -button.imageView.frame.size.width, -spacing, 0);
+  button.contentEdgeInsets = UIEdgeInsetsMake(spacing, 0, spacing, 0);
+
+  // 垂直排列
+  [button setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
+  [button
+      setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];
+
+  [button addTarget:self
+                action:@selector(buttonTapped:)
+      forControlEvents:UIControlEventTouchUpInside];
+
+  return button;
+}
+
+- (void)buttonTapped:(UIButton *)button {
+  NSInteger index = button.tag;
+  if (index != self.selectedIndex) {
+    self.selectedIndex = index;
+    [self updateButtonStates];
+
+    if ([self.delegate respondsToSelector:@selector(customTabBar:
+                                              didSelectItemAtIndex:)]) {
+      [self.delegate customTabBar:self didSelectItemAtIndex:index];
+    }
+  }
+}
+
+- (void)setSelectedIndex:(NSInteger)selectedIndex animated:(BOOL)animated {
+  if (_selectedIndex != selectedIndex) {
+    _selectedIndex = selectedIndex;
+    [self updateButtonStates];
+  }
+}
+
+- (void)setSelectedIndex:(NSInteger)selectedIndex {
+  [self setSelectedIndex:selectedIndex animated:NO];
+}
+
+- (void)updateButtonStates {
+  for (NSInteger i = 0; i < self.buttons.count; i++) {
+    UIButton *button = self.buttons[i];
+    button.selected = (i == self.selectedIndex);
+  }
+}
+
+- (void)setTransparentBackground:(BOOL)transparent {
+  if (transparent) {
+    self.backgroundView.backgroundColor = [UIColor clearColor];
+  } else {
+    self.backgroundView.backgroundColor = [UIColor whiteColor];
+  }
+}
+
+- (void)layoutSubviews {
+  [super layoutSubviews];
+
+  // 调整按钮的图片和文字布局
+  for (UIButton *button in self.buttons) {
+    CGFloat imageWidth = button.imageView.frame.size.width;
+    CGFloat imageHeight = button.imageView.frame.size.height;
+    CGFloat titleWidth = button.titleLabel.frame.size.width;
+    CGFloat titleHeight = button.titleLabel.frame.size.height;
+
+    CGFloat spacing = 4.0;
+
+    // 图片在上
+    button.imageEdgeInsets =
+        UIEdgeInsetsMake(-(titleHeight + spacing), 0, 0, -titleWidth);
+    // 文字在下
+    button.titleEdgeInsets =
+        UIEdgeInsetsMake(0, -imageWidth, -(imageHeight + spacing), 0);
+  }
+}
+
+@end