android Recyclerview viewholder统一封装

Recyclerview holder 统一封装 ViewHolder类

import android.annotation.SuppressLint
import android.content.Context
import android.graphics.Color
import android.graphics.drawable.GradientDrawable
import android.os.Build
import android.os.CountDownTimer
import android.util.SparseArray
import android.view.View
import android.widget.ImageView
import android.widget.TextView
import androidx.annotation.RequiresApi
import androidx.recyclerview.widget.RecyclerView
import com.tongtong.feat_watch.utils.WGlide/*** @author: shuhuai* @desc:* @date: 2024/11/15* @version:* @remark*/
open class ViewHolder(itemView: View?) : RecyclerView.ViewHolder(itemView!!
) {private var countDownTimer: CountDownTimer? = null//用于缓存已找的界面private val mView = SparseArray<View>()fun <T : View?> getView(viewId: Int): T? {//对已有的view做缓存var view = mView[viewId]//使用缓存的方式减少findViewById的次数if (view == null) {view = itemView.findViewById(viewId)mView.put(viewId, view)}return view as T?}fun startCountDown(viewId: Int,remainingTime: Long,copywrit: String? = "",unit: TimeUnit = TimeUnit.SECOND,backgroundColor: String = "00000000",callback: (message: String?) -> Unit = { }) {val view = getView<TextView>(viewId)!!countDownTimer = object : CountDownTimer(remainingTime, unit.v) {@RequiresApi(Build.VERSION_CODES.S)override fun onTick(millisUntilFinished: Long) {view.apply {text = TimeUnit.formatTime(millisUntilFinished, unit) + copywritval bg = background as GradientDrawableval code = String.format("#%s", backgroundColor)bg.setColor(Color.parseColor(code))}}override fun onFinish() {callback.invoke("倒计时结束")}}.start()}fun cancelCountDown() {if (countDownTimer != null) {countDownTimer!!.cancel()}}fun destoryDown() {cancelCountDown()countDownTimer = null}//通用的功能进行封装  设置文本 设置条目点击事件  设置图片fun setText(viewId: Int, text: CharSequence?): ViewHolder {val view = getView<TextView>(viewId)!!view.text = text//希望可以链式调用return this}//通用的功能进行封装  设置文本 设置条目点击事件  设置图片fun setText(viewId: Int, text: String?): ViewHolder {val view = getView<TextView>(viewId)!!view.text = text//希望可以链式调用return this}fun setTextColor(viewId: Int, color: Int): ViewHolder {val view = getView<TextView>(viewId)!!view.setTextColor(color)//希望可以链式调用return this}fun setTextBackground(viewId: Int, color: Int): ViewHolder {val view = getView<TextView>(viewId)!!view.setBackgroundColor(color)//希望可以链式调用return this}fun setTextTypeface(viewId: Int, style: Int): ViewHolder {val view = getView<TextView>(viewId)!!view.setTypeface(null, style)//希望可以链式调用return this}fun setSelected(viewId: Int, selected: Boolean): ViewHolder {val view = getView<TextView>(viewId)!!view.isSelected = selected//希望可以链式调用return this}fun setSelected2(viewId: Int, selected: Boolean): ViewHolder {val view = getView<View>(viewId)!!view.isSelected = selectedreturn this}fun setVisible(viewId: Int, visible: Boolean): ViewHolder {val view = getView<View>(viewId)!!view.visibility = if (visible) View.VISIBLE else View.GONEreturn this}fun setVisible(viewId: Int, visible: Boolean, isLocation: Boolean): ViewHolder {val view = getView<View>(viewId)!!if (isLocation) {view.visibility = if (visible) View.VISIBLE else View.INVISIBLE} else {view.visibility = if (visible) View.VISIBLE else View.GONE}return this}/*** 设置本地图片* @param viewId* @param resId* @return*/fun setImageResource(viewId: Int, resId: Int): ViewHolder {val iv = getView<ImageView>(viewId)!!iv.setImageResource(resId)return this}fun setDrawable(mContext: Context?, viewId: Int, resId: Int): ViewHolder {val v = getView<View>(viewId)!!v.setBackgroundDrawable(mContext?.resources?.getDrawable(resId))return this}fun setTextSelected(viewId: Int, bool: Boolean): ViewHolder {val tv = getView<TextView>(viewId)!!tv.isSelected = boolreturn this}/*** 设置本地图片* @param viewId* @param resId* @return*/fun setImageDrawable(mContext: Context, viewId: Int, resId: Int): ViewHolder {val iv = getView<ImageView>(viewId)!!iv.setImageDrawable(mContext.getResources().getDrawable(resId))return this}/*** 加载图片资源路径* @param viewId* @param imageLoader* @return*/fun setImagePath(viewId: Int, imageLoader: HolderImageLoader, res: Int): ViewHolder {val iv = getView<ImageView>(viewId)!!imageLoader.loadImage(iv, imageLoader.path, res)return this}fun setImageGrey(mContext: Context?, viewId: Int, url: String?): ViewHolder {val view = getView<ImageView>(viewId)!!WGlide.setImageGrey(mContext, view, url)return this}fun setImage(mContext: Context?, viewId: Int, url: String?): ViewHolder {val view = getView<ImageView>(viewId)!!WGlide.setImage(mContext, view, url)return this}fun setImage(mContext: Context?, viewId: Int, url: String?, res: Int): ViewHolder {val view = getView<ImageView>(viewId)!!WGlide.setImage(mContext, view, url)return this}fun setImage(mContext: Context?,viewId: Int,url: String?,width: Int?,height: Int?): ViewHolder {val view = getView<ImageView>(viewId)!!WGlide.setImage(mContext, view, url, width, height)return this}fun setImageRadius(mContext: Context?,viewId: Int,url: String?,radius: Float = 0f,): ViewHolder {val view = getView<ImageView>(viewId)!!WGlide.setImageRadius(mContext, view, url, radius)return this}fun setImageRadiusForTop(mContext: Context?,viewId: Int,url: String?,radiusTL: Float = 0f,radiusTR: Float = 0f,): ViewHolder {val view = getView<ImageView>(viewId)!!WGlide.setImageRadius(mContext, view, url, 0f, radiusTL, radiusTR)return this}@SuppressLint("NewApi")fun setBackground(mContext: Context, viewId: Int, bg: Int): ViewHolder {val tv = getView<View>(viewId) as TextViewtv.background = mContext.getResources().getDrawable(bg)return this}/*** 关于事件的*/fun setOnClickListener(viewId: Int, listener: View.OnClickListener?): ViewHolder {val view = getView<View>(viewId)!!view.setOnClickListener(listener)return this}abstract class HolderImageLoader(mContext: Context, var path: String) {var mContext: Context = mContext/*** 需要去复写这个方法加载图片* @param iv* @param path*/abstract fun loadImage(iv: ImageView?, path: String?, res: Int)}
}enum class TimeUnit(val v: Long) {DAY(24 * 60 * 60 * 1000),HOUR(60 * 60 * 1000),MINUTE(60 * 1000),HOUR_UN_SECOND(60 * 1000),HOUR_UN_SECOND_NO_ZERO(1000),SECOND(1000);companion object {fun formatTime(millis: Long, unit: TimeUnit): String {val totalSeconds: Long = millis / 1000val days: Long = totalSeconds / (24 * 3600) // 每天86400秒，24*3600val hours: Long = (totalSeconds % (24 * 3600)) / 3600 // 取余后计算小时val minutes: Long = (totalSeconds % 3600) / 60 // 取余后计算分钟val seconds: Long = totalSeconds % 60 // 取余后计算秒var time = "${days}天${hours}时${minutes}分${seconds}秒"if (unit == HOUR) {time = "${(hours + days * 24)}时${minutes}分${seconds}秒"} else if (unit == MINUTE) {time = "${minutes + (hours + days * 24) * 60}分${seconds}秒"} else if (unit == SECOND) {time = "${seconds + (minutes + (hours + days * 24) * 60) * 60}秒"} else if (unit == HOUR_UN_SECOND) {val _hour = hours + days * 24if (_hour > 0) {time = "${(hours + days * 24)}时${minutes}分"} else {time = "${minutes}分"}} else if (unit == HOUR_UN_SECOND_NO_ZERO) {val _hour = hours + days * 24if (_hour > 0) {time = "${(hours + days * 24)}时${minutes}分"} else {if (minutes > 0) {time = "${minutes}分"} else {time = "${seconds}秒"}}}return time;}}
}

具体实现

import android.content.Context
import android.view.LayoutInflater
import android.view.ViewGroup
import androidx.recyclerview.widget.RecyclerView
import com.tongtong.feat_watch.R
import com.tongtong.feat_watch.ui.hall.bean.HallBean
import com.tongtong.feat_watch.ui.paly.view.scroll.ViewHolder/*** @author: shuhuai* @desc:* @date: 2025/1/15* @version:* @remark*/
class MyAdapter(context: Context?) :RecyclerView.Adapter<ViewHolder?>() {override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder = ViewHolder(LayoutInflater.from(parent?.context).inflate(R.layout.fragment_hall, parent, false))override fun onBindViewHolder(holder: ViewHolder, position: Int) {TODO("Not yet implemented")}override fun getItemCount(): Int {TODO("Not yet implemented")}
}