Netease-Music-Demo/wyy/DiscoverView/DiscoverButtonsView.swift

//
//  DiscoverButtonsView.swift
//  wyy
//
//  Created by 施书顺 on 2021/3/5.
//

import UIKit
import SnapKit

class DiscoverButtonsView: UIView {
    
    let buttonScrollView = UIButtonScrollView()
    var buttons = [UIButton]()
    
    init(){
        super.init(frame: CGRect.zero)
        
        addSubview(buttonScrollView)
        buttonScrollView.snp.makeConstraints{ make in
            make.centerX.equalToSuperview()
            make.width.equalTo(UIScreen.main.bounds.width)
            make.height.equalTo(80)
            make.top.equalTo(0)
        }
        buttonScrollView.canCancelContentTouches = true
        buttonScrollView.bounces = true
        buttonScrollView.showsHorizontalScrollIndicator = false
        buttonScrollView.showsVerticalScrollIndicator = false
        buttonScrollView.contentSize = CGSize(width: 70 * 7, height: 80)
        addButtonToScrollView(imageName: "calendar", title: "每日推荐")
        addButtonToScrollView(imageName: "fm", title: "私人FM")
        addButtonToScrollView(imageName: "songlist", title: "歌单")
        addButtonToScrollView(imageName: "ranklist", title: "排行榜")
        addButtonToScrollView(imageName: "album", title: "数字专辑")
        addButtonToScrollView(imageName: "singroom", title: "歌房")
        addButtonToScrollView(imageName: "gaming", title: "游戏专区")
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    func addButtonToScrollView(imageName: String, title: String){
        let button = UIButton()
        button.setImage(UIImage(named: imageName), for: .normal)
        button.adjustsImageWhenHighlighted = false
        buttonScrollView.addSubview(button)
        button.snp.makeConstraints{ make in
            if(buttons.isEmpty){
                make.left.equalTo(20)
            }else{
                make.left.equalTo(buttons[buttons.count - 1].snp.right).offset(20)
            }
            make.top.equalTo(0)
            make.width.equalTo(50)
            make.height.equalTo(50)
        }
        buttons.append(button)
        
        let titleLabel = UILabel()
        titleLabel.text = title
        titleLabel.font = UIFont.systemFont(ofSize: 12)
        buttonScrollView.addSubview(titleLabel)
        titleLabel.snp.makeConstraints{ make in
            make.centerX.equalTo(button.snp.centerX)
            make.top.equalTo(button.snp.bottom).offset(10)
        }
    }

}