优化列表图片展示

app/src/main/java/com/ckkj/defense_device/adapter/AddDeviceAdapter.kt

@@ -18,6 +18,8 @@ class AddDeviceAdapter(
     private val onItemClick: (Device) -> Unit
 ) : RecyclerView.Adapter<AddDeviceAdapter.ViewHolder>() {
 
+    private val defaultIcons = listOf(R.mipmap.img1, R.mipmap.img2, R.mipmap.img3)
+
     inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
         val ivIcon: ImageView = itemView.findViewById(R.id.ivDeviceIcon2)
         val tvName: TextView = itemView.findViewById(R.id.tvDeviceName2)
@@ -47,7 +49,9 @@ class AddDeviceAdapter(
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         val device = devices[position]
         holder.tvName.text = device.name
-        holder.ivIcon.setImageResource(R.mipmap.img)
+        
+        val iconResId = defaultIcons[position % defaultIcons.size]
+        holder.ivIcon.setImageResource(iconResId)
 
         // 点击事件
         holder.itemView.setOnClickListener { onItemClick(device) }