init

2025-07-29 11:09:59 +08:00
parent df5acf6b61
commit 56e0a85a4c
106 changed files with 10986 additions and 92 deletions
@@ -0,0 +1,9 @@
+package com.sw.dualscreen.adapter
+
+import androidx.recyclerview.widget.RecyclerView
+import androidx.viewbinding.ViewBinding
+
+abstract class BaseViewHolder<B : ViewBinding, T>(val binding: B) :
+    RecyclerView.ViewHolder(binding.root) {
+    abstract fun bind(item: T)
+}
@@ -0,0 +1,31 @@
+package com.sw.dualscreen.adapter
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import androidx.viewbinding.ViewBinding
+
+class GridRecyclerAdapter<T, B : ViewBinding>(
+    private val itemList: List<T>,
+    private val bindingInflater: (LayoutInflater, ViewGroup, Boolean) -> B,
+    private val bindHolder: (B, T) -> Unit,
+    private val onItemClick: ((T) -> Unit)? = null
+) : RecyclerView.Adapter<BaseViewHolder<B, T>>() {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BaseViewHolder<B, T> {
+        val inflater = LayoutInflater.from(parent.context)
+        val binding = bindingInflater(inflater, parent, false)
+        return object : BaseViewHolder<B, T>(binding) {
+            override fun bind(item: T) = bindHolder(binding, item)
+        }
+    }
+
+    override fun onBindViewHolder(holder: BaseViewHolder<B, T>, position: Int) {
+        holder.bind(itemList[position])
+        holder.itemView.setOnClickListener {
+            onItemClick?.invoke(itemList[position])
+        }
+    }
+
+    override fun getItemCount(): Int = itemList.size
+}
@@ -0,0 +1,36 @@
+package com.sw.dualscreen.adapter
+
+import android.graphics.Rect
+import android.view.View
+import androidx.recyclerview.widget.RecyclerView
+
+/**
+ * item间距
+ */
+class GridSpacingItemDecoration(
+    private val spanCount: Int,
+    private val spacing: Int,
+    private val includeEdge: Boolean
+) : RecyclerView.ItemDecoration() {
+
+    override fun getItemOffsets(
+        outRect: Rect,
+        view: View,
+        parent: RecyclerView,
+        state: RecyclerView.State
+    ) {
+        val position = parent.getChildAdapterPosition(view)
+        val column = position % spanCount
+
+        if (includeEdge) {
+            outRect.left = spacing - column * spacing / spanCount
+            outRect.right = (column + 1) * spacing / spanCount
+            if (position < spanCount) outRect.top = spacing
+            outRect.bottom = spacing
+        } else {
+            outRect.left = column * spacing / spanCount
+            outRect.right = spacing - (column + 1) * spacing / spanCount
+            if (position >= spanCount) outRect.top = spacing
+        }
+    }
+}