在Objective C中的自定义视图上放置一个按钮

@property (nonatomic, strong) UIButton *customButton;

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        // 初始化按钮
        self.customButton = [UIButton buttonWithType:UIButtonTypeSystem];
        self.customButton.frame = CGRectMake(0, 0, 100, 50);
        [self.customButton setTitle:@"按钮" forState:UIControlStateNormal];
        
        // 添加按钮的点击事件
        [self.customButton addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
        
        // 将按钮添加到自定义视图上
        [self addSubview:self.customButton];
    }
    return self;
}

- (void)buttonClicked:(UIButton *)sender {
    // 按钮点击事件的处理逻辑
    NSLog(@"按钮被点击了！");
}

CustomView *customView = [[CustomView alloc] initWithFrame:CGRectMake(0, 0, 200, 200)];
[self.view addSubview:customView];