feat: 新增 removeAtRange() 方法，用于便捷删除指定范围内的数据

CymChad · Nov 21, 2023 · 2c2ac7e · 2c2ac7e
1 parent 8d2532f
commit 2c2ac7e
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diff --git a/library/src/main/java/com/chad/library/adapter/base/BaseDifferAdapter.kt b/library/src/main/java/com/chad/library/adapter/base/BaseDifferAdapter.kt
@@ -152,6 +152,27 @@ abstract class BaseDifferAdapter<T : Any, VH : RecyclerView.ViewHolder>(
         }
     }
 
+    override fun removeAtRange(range: kotlin.ranges.IntRange) {
+        if (range.isEmpty()) {
+            return
+        }
+        if (range.first >= items.size) {
+            throw IndexOutOfBoundsException("Range first position: ${range.first} - last position: ${range.last}. size:${items.size}")
+        }
+
+        val last = if (range.last >= items.size) {
+            items.size - 1
+        } else {
+            range.last
+        }
+
+        val list = items.toMutableList()
+        for (it in last downTo  range.first) {
+            list.removeAt(it)
+        }
+        submitList(list)
+    }
+
     override fun swap(fromPosition: Int, toPosition: Int) {
         if (fromPosition in items.indices || toPosition in items.indices) {
             items.toMutableList().also {

diff --git a/library/src/main/java/com/chad/library/adapter/base/BaseQuickAdapter.kt b/library/src/main/java/com/chad/library/adapter/base/BaseQuickAdapter.kt
@@ -651,6 +651,37 @@ abstract class BaseQuickAdapter<T : Any, VH : RecyclerView.ViewHolder>(
         removeAt(index)
     }
 
+    /**
+     * 删除给定范围内的数据
+     *
+     * @param range Int 索引范围
+     */
+    open fun removeAtRange(range: kotlin.ranges.IntRange) {
+        if (range.isEmpty()) {
+            return
+        }
+        if (range.first >= items.size) {
+            throw IndexOutOfBoundsException("Range first position: ${range.first} - last position: ${range.last}. size:${items.size}")
+        }
+
+        val last = if (range.last >= items.size) {
+            items.size - 1
+        } else {
+            range.last
+        }
+
+        for (it in last downTo  range.first) {
+            mutableItems.removeAt(it)
+        }
+
+        notifyItemRangeRemoved(range.first, last - range.first + 1)
+
+        // 处理空视图的情况
+        if (displayEmptyView()) {
+            notifyItemInserted(0)
+        }
+    }
+
     /**
      * Item swap
      * 数据位置交换。这里单纯的只是两个数据交换位置。（注意⚠️，这里移动后的数据顺序与 [move] 不同)

diff --git a/library/src/main/java/com/chad/library/adapter/base/BaseSingleItemAdapter.kt b/library/src/main/java/com/chad/library/adapter/base/BaseSingleItemAdapter.kt
@@ -76,6 +76,10 @@ abstract class BaseSingleItemAdapter<T : Any, VH : RecyclerView.ViewHolder>(priv
         throw RuntimeException("Please use setItem()")
     }
 
+    override fun removeAtRange(range: IntRange) {
+        throw RuntimeException("Please use setItem()")
+    }
+
     override fun removeAt(position: Int) {
         throw RuntimeException("Please use setItem()")
     }