添加了界面及逻辑

2025-07-18 17:16:00 +08:00
parent b68c967d82
commit f97ef151c3
74 changed files with 3108 additions and 34 deletions
@@ -0,0 +1,84 @@
+package com.sw.platecabinet.adapter
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.recyclerview.widget.GridLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import androidx.viewbinding.ViewBinding
+import com.sw.platecabinet.R
+
+/**
+ * 通用分页适配器（支持ViewBinding）
+ */
+class GenericPageAdapter<T, VB : ViewBinding>(
+    private var pages: List<List<T>>,
+    private val pageLayoutId: Int,
+    private val itemBindingInflater: (LayoutInflater, ViewGroup, Boolean) -> VB,
+    private val itemBindCallback: VB.(item: T, position: Int) -> Unit
+) : RecyclerView.Adapter<GenericPageAdapter<T, VB>.PageViewHolder>() {
+
+    fun updatePages(newPages: List<List<T>>) {
+        this.pages = newPages
+        notifyDataSetChanged()
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): PageViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(pageLayoutId, parent, false)
+        return PageViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: PageViewHolder, position: Int) {
+        holder.bind(pages[position])
+    }
+
+    override fun getItemCount(): Int = pages.size
+
+    inner class PageViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        private val childRecyclerView: RecyclerView = itemView.findViewById(R.id.childRecyclerView)
+
+        fun bind(items: List<T>) {
+            childRecyclerView.layoutManager = GridLayoutManager(itemView.context, 2)
+
+            // 添加间距装饰(12dp)
+            childRecyclerView.addItemDecoration(
+                GridSpacingItemDecoration(
+                    spanCount = 2, // 2列
+                    spacing = itemView.context.dpToPx(12), // 12dp
+                    includeEdge = true // 包含边缘间距
+                )
+            )
+
+            childRecyclerView.adapter =
+                GenericChildAdapter(items, itemBindingInflater, itemBindCallback)
+        }
+    }
+}
+
+/**
+ * 通用子项适配器（支持ViewBinding）
+ */
+class GenericChildAdapter<T, VB : ViewBinding>(
+    private val items: List<T>,
+    private val bindingInflater: (LayoutInflater, ViewGroup, Boolean) -> VB,
+    private val bindCallback: VB.(item: T, position: Int) -> Unit,
+) : RecyclerView.Adapter<GenericChildAdapter<T, VB>.ViewHolder>() {
+
+    inner class ViewHolder(private val binding: VB) : RecyclerView.ViewHolder(binding.root) {
+        fun bind(item: T, position: Int) {
+            binding.bindCallback(item, position)
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val binding = bindingInflater(LayoutInflater.from(parent.context), parent, false)
+        return ViewHolder(binding)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        holder.bind(items[position], position)
+
+    }
+
+    override fun getItemCount(): Int = items.size
+}
@@ -0,0 +1,54 @@
+package com.sw.platecabinet.adapter
+
+import android.content.Context
+import android.graphics.Rect
+import android.view.View
+import androidx.recyclerview.widget.RecyclerView
+
+/**
+ * 为RecyclerView添加间距的ItemDecoration
+ */
+class GridSpacingItemDecoration(
+    private val spanCount: Int,         // 列数
+    private val spacing: Int,           // 间距(dp)
+    private val includeEdge: Boolean    // 是否包含边缘
+) : RecyclerView.ItemDecoration() {
+
+    override fun getItemOffsets(
+        outRect: Rect,
+        view: View,
+        parent: RecyclerView,
+        state: RecyclerView.State
+    ) {
+        val position = parent.getChildAdapterPosition(view) // item position
+        val column = position % spanCount // item column
+
+        if (includeEdge) {
+            // 左右间距计算
+            outRect.left = spacing - column * spacing / spanCount
+            outRect.right = (column + 1) * spacing / spanCount
+
+            // 第一行添加顶部间距
+            if (position < spanCount) {
+                outRect.top = spacing
+            }
+            outRect.bottom = spacing // 每行底部都添加间距
+        } else {
+            // 左右间距计算(不包含边缘)
+            outRect.left = column * spacing / spanCount
+            outRect.right = spacing - (column + 1) * spacing / spanCount
+
+            // 不是第一行时添加顶部间距
+            if (position >= spanCount) {
+                outRect.top = spacing
+            }
+        }
+    }
+}
+
+/**
+ * 将dp值转换为px
+ */
+fun Context.dpToPx(dp: Int): Int {
+    return (dp * resources.displayMetrics.density).toInt()
+}