| /* |
| * Copyright (C) 2023 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 com.android.intentresolver.widget |
| |
| import android.view.View |
| import androidx.recyclerview.widget.RecyclerView |
| |
| internal val RecyclerView.areAllChildrenVisible: Boolean |
| get() { |
| val count = getChildCount() |
| if (count == 0) return true |
| val first = getChildAt(0) |
| val last = getChildAt(count - 1) |
| val itemCount = adapter?.itemCount ?: 0 |
| return getChildAdapterPosition(first) == 0 |
| && getChildAdapterPosition(last) == itemCount - 1 |
| && isFullyVisible(first) |
| && isFullyVisible(last) |
| } |
| |
| private fun RecyclerView.isFullyVisible(view: View): Boolean = |
| view.left >= paddingLeft && view.right <= width - paddingRight |
