LazyLayoutItemsProvider.kt
/*
* Copyright 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.compose.foundation.lazy.layout
import androidx.compose.runtime.Composable
internal interface LazyLayoutItemsProvider {
/** Returns the content lambda for the given index and scope object */
fun getContent(index: Int): @Composable () -> Unit
/** The total number of items in the lazy layout (visible or not). */
val itemsCount: Int
/** Returns the key for the item on this index */
fun getKey(index: Int): Any
/**
* Contains the mapping between the key and the index. It could contain not all the items of
* the list as an optimization.
**/
val keyToIndexMap: Map<Any, Int>
}