YFTagView

YFTagView *tagView = [[YFTagView alloc] initWithFrame:CGRectMake(10, 100, self.view.frame.size.width - 20, self.view.frame.size.height - 10)];

// 最大高度
tagView.viewMaxHeight = 400;
    
tagView.delegate = self;

[tagView addTags:@[
                   @"dog",
                   @"cat",
                   @"pig",
                   @"duck",
                   @"horse",
                   @"elephant",
                   @"ant",
                   @"fish",
                   @"bird",
                   @"engle",
                   @"snake",
                   @"mouse",
                   @"squirrel",
                   @"beaver",
                   @"kangaroo",
                   @"monkey",
                   @"panda",
                   @"bear",
                   @"lion",
                   ]];
tagView.inputTextField.placeholder = @"请输入标签";

[self.view addSubview:tagView];