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app/src/main/java/com/example/defenseapplication/adapter/DeviceAdapter.kt

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+package com.example.defenseapplication.adapter
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import com.example.defenseapplication.R
+import com.example.defenseapplication.databinding.ItemDeviceBinding
+
+data class DeviceUi(
+    val name: String,
+    val isOnline: Boolean
+)
+
+class DeviceAdapter : RecyclerView.Adapter<DeviceAdapter.DeviceViewHolder>() {
+
+    private val items = mutableListOf<DeviceUi>()
+
+    fun submitList(deviceList: List<DeviceUi>) {
+        items.clear()
+        items.addAll(deviceList)
+        notifyDataSetChanged()
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): DeviceViewHolder {
+        val binding = ItemDeviceBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+        return DeviceViewHolder(binding)
+    }
+
+    override fun onBindViewHolder(holder: DeviceViewHolder, position: Int) {
+        holder.bind(items[position])
+    }
+
+    override fun getItemCount(): Int = items.size
+
+    inner class DeviceViewHolder(private val binding: ItemDeviceBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(item: DeviceUi) {
+            binding.tvDeviceName.text = item.name
+            if (item.isOnline) {
+                binding.tvDeviceStatus.text = "\u25CF  正在运行"
+                binding.tvDeviceStatus.setTextColor(binding.root.context.getColor(R.color.green))
+            } else {
+                binding.tvDeviceStatus.text = "\u25CF  离线"
+                binding.tvDeviceStatus.setTextColor(binding.root.context.getColor(R.color.red))
+            }
+        }
+    }
+}