扫码附件设备，链接设备动画

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

@@ -10,14 +10,33 @@ import com.example.defenseapplication.R
 
 data class Device(
     val name: String,
-    val icon: String
+    val icon: String  // 暂时保留，不再实际使用静态图片
 )
-class AddDeviceAdapter(private val devices: List<Device>, private val onItemClick: (Device) -> Unit) :
-    RecyclerView.Adapter<AddDeviceAdapter.ViewHolder>() {
+
+class AddDeviceAdapter(
+    private val devices: List<Device>,
+    private val onItemClick: (Device) -> Unit
+) : RecyclerView.Adapter<AddDeviceAdapter.ViewHolder>() {
 
     inner class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
         val ivIcon: ImageView = itemView.findViewById(R.id.ivDeviceIcon2)
-        val tvName: TextView = itemView.findViewById(R.id.tvDeviceName2)   // ID 要和布局中一致
+        val tvName: TextView = itemView.findViewById(R.id.tvDeviceName2)
+
+        // 启动帧动画
+        fun startAnimation() {
+            val drawable = ivIcon.drawable
+            if (drawable is android.graphics.drawable.AnimationDrawable && !drawable.isRunning) {
+                drawable.start()
+            }
+        }
+
+        // 停止帧动画
+        fun stopAnimation() {
+            val drawable = ivIcon.drawable
+            if (drawable is android.graphics.drawable.AnimationDrawable && drawable.isRunning) {
+                drawable.stop()
+            }
+        }
     }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
@@ -28,13 +47,17 @@ class AddDeviceAdapter(private val devices: List<Device>, private val onItemClic
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         val device = devices[position]
         holder.tvName.text = device.name
-        // 根据 icon 字符串加载对应图片（假设 icon 是本地 drawable 的名称）
-        val resId = holder.itemView.context.resources.getIdentifier(device.icon, "drawable", holder.itemView.context.packageName)
-        if (resId != 0) holder.ivIcon.setImageResource(resId) else holder.ivIcon.setImageResource(R.drawable.img)
+        holder.ivIcon.setImageResource(R.drawable.img)
 
-        // 设置点击事件
+        // 点击事件
         holder.itemView.setOnClickListener { onItemClick(device) }
     }
 
+    override fun onViewRecycled(holder: ViewHolder) {
+        super.onViewRecycled(holder)
+        // 视图被回收时停止动画，节省资源
+        holder.stopAnimation()
+    }
+
     override fun getItemCount(): Int = devices.size
 }