1

CustomKeyboard/View/KBToolBar.m

@@ -7,15 +7,139 @@
 
 #import "KBToolBar.h"
 
+@interface KBToolBar ()
+@property (nonatomic, strong) UIView *leftContainer;
+@property (nonatomic, strong) NSArray<UIButton *> *leftButtonsInternal;
+@property (nonatomic, strong) UIButton *settingsButtonInternal;
+@end
+
 @implementation KBToolBar
 
 - (instancetype)initWithFrame:(CGRect)frame{
     if (self = [super initWithFrame:frame]) {
-        
+        self.backgroundColor = [UIColor clearColor];
+        _leftButtonTitles = @[@"Item1", @"Item2", @"Item3", @"Item4"]; // 默认标题
+        [self setupUI];
     }
     return self;
 }
 
 
+#pragma mark - Public
+
+- (NSArray<UIButton *> *)leftButtons {
+    return self.leftButtonsInternal;
+}
+
+- (UIButton *)settingsButton {
+    return self.settingsButtonInternal;
+}
+
+- (void)setLeftButtonTitles:(NSArray<NSString *> *)leftButtonTitles {
+    _leftButtonTitles = [leftButtonTitles copy];
+    // Update titles if buttons already exist
+    [self.leftButtonsInternal enumerateObjectsUsingBlock:^(UIButton * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
+        if (idx < self.leftButtonTitles.count) {
+            [obj setTitle:self.leftButtonTitles[idx] forState:UIControlStateNormal];
+        }
+    }];
+}
+
+#pragma mark - 视图搭建
+
+- (void)setupUI {
+    [self addSubview:self.leftContainer];
+    [self addSubview:self.settingsButtonInternal];
+
+    // 右侧设置按钮
+    [self.settingsButtonInternal mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.right.equalTo(self.mas_right).offset(-12);
+        make.centerY.equalTo(self.mas_centerY);
+        make.width.height.mas_equalTo(32);
+    }];
+
+    // 左侧容器占用剩余空间
+    [self.leftContainer mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.left.equalTo(self.mas_left).offset(12);
+        make.right.equalTo(self.settingsButtonInternal.mas_left).offset(-12);
+        make.centerY.equalTo(self.mas_centerY);
+        make.height.mas_equalTo(32);
+    }];
+
+    // 在左侧容器中创建 4 个等宽按钮
+    NSMutableArray<UIButton *> *buttons = [NSMutableArray arrayWithCapacity:4];
+    UIView *previous = nil;
+    for (NSInteger i = 0; i < 4; i++) {
+        UIButton *btn = [self buildActionButtonAtIndex:i];
+        [self.leftContainer addSubview:btn];
+        [buttons addObject:btn];
+        [btn mas_makeConstraints:^(MASConstraintMaker *make) {
+            if (previous) {
+                make.left.equalTo(previous.mas_right).offset(8);
+                make.width.equalTo(previous);
+            } else {
+                make.left.equalTo(self.leftContainer.mas_left);
+            }
+            make.top.bottom.equalTo(self.leftContainer);
+        }];
+        previous = btn;
+    }
+    // 最后一个按钮贴右侧
+    [previous mas_makeConstraints:^(MASConstraintMaker *make) {
+        make.right.equalTo(self.leftContainer.mas_right);
+    }];
+    self.leftButtonsInternal = buttons.copy;
+}
+
+- (UIButton *)buildActionButtonAtIndex:(NSInteger)idx {
+    UIButton *btn = [UIButton buttonWithType:UIButtonTypeSystem];
+    btn.layer.cornerRadius = 16;
+    btn.layer.masksToBounds = YES;
+    btn.backgroundColor = [UIColor colorWithWhite:1 alpha:0.9];
+    btn.titleLabel.font = [UIFont systemFontOfSize:14 weight:UIFontWeightMedium];
+    NSString *title = (idx < self.leftButtonTitles.count) ? self.leftButtonTitles[idx] : [NSString stringWithFormat:@"Item%ld", (long)(idx+1)];
+    [btn setTitle:title forState:UIControlStateNormal];
+    [btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
+    btn.tag = idx;
+    [btn addTarget:self action:@selector(onLeftAction:) forControlEvents:UIControlEventTouchUpInside];
+    return btn;
+}
+
+#pragma mark - Actions
+
+- (void)onLeftAction:(UIButton *)sender {
+    if ([self.delegate respondsToSelector:@selector(toolBar:didTapActionAtIndex:)]) {
+        [self.delegate toolBar:self didTapActionAtIndex:sender.tag];
+    }
+}
+
+- (void)onSettings {
+    if ([self.delegate respondsToSelector:@selector(toolBarDidTapSettings:)]) {
+        [self.delegate toolBarDidTapSettings:self];
+    }
+}
+
+#pragma mark - Lazy
+
+- (UIView *)leftContainer {
+    if (!_leftContainer) {
+        _leftContainer = [[UIView alloc] init];
+        _leftContainer.backgroundColor = [UIColor clearColor];
+    }
+    return _leftContainer;
+}
+
+- (UIButton *)settingsButtonInternal {
+    if (!_settingsButtonInternal) {
+        _settingsButtonInternal = [UIButton buttonWithType:UIButtonTypeSystem];
+        _settingsButtonInternal.layer.cornerRadius = 16;
+        _settingsButtonInternal.layer.masksToBounds = YES;
+        _settingsButtonInternal.backgroundColor = [UIColor colorWithWhite:1 alpha:0.9];
+    [_settingsButtonInternal setTitle:@"⚙︎" forState:UIControlStateNormal]; // 简单的齿轮符号
+        [_settingsButtonInternal setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
+        [_settingsButtonInternal addTarget:self action:@selector(onSettings) forControlEvents:UIControlEventTouchUpInside];
+    }
+    return _settingsButtonInternal;
+}
 
 @end