2 * Copyright © 2017,2019,2021-2022 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser Android <https://www.stoutner.com/privacy-browser-android>.
6 * Privacy Browser Android is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * Privacy Browser Android is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Privacy Browser Android. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser.views
22 import android.content.Context
23 import android.util.AttributeSet
25 import androidx.viewpager.widget.ViewPager
27 class WrapVerticalContentViewPager : ViewPager {
29 constructor(context: Context) : super(context)
30 constructor(context: Context, attrs: AttributeSet?) : super(context, attrs)
32 override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
33 // Perform an initial `super.onMeasure`, which populates the child count.
34 super.onMeasure(widthMeasureSpec, heightMeasureSpec)
36 // Initialize the maximum height variable.
39 // Find the maximum height of each of the child views.
40 for (i in 0 until childCount) {
41 // Get the child view.
42 val childView = getChildAt(i)
44 // Measure the child view height with no constraints.
45 childView.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED))
47 // Store the child's height if it is larger than the maximum height.
48 if (childView.measuredHeight > maximumHeight) {
49 maximumHeight = childView.measuredHeight
53 // Perform a final `super.onMeasure` to set the maximum height.
54 super.onMeasure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(maximumHeight, MeasureSpec.EXACTLY))