Continuous scrolling in Android PDF viewer using Kotlin

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/*
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 *   Copyright © 2020-2025 PSPDFKit GmbH. All rights reserved.
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 *
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 *   The PSPDFKit Sample applications are licensed with a modified BSD license.
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 *   Please see License for details. This notice may not be removed from this file.
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 */
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package com.pspdfkit.catalog.examples.kotlin
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import android.content.Context
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import com.pspdfkit.catalog.R
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import com.pspdfkit.configuration.activity.PdfActivityConfiguration
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import com.pspdfkit.configuration.activity.UserInterfaceViewMode
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import com.pspdfkit.configuration.page.PageFitMode
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import com.pspdfkit.configuration.page.PageScrollDirection
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import com.pspdfkit.configuration.page.PageScrollMode
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import com.pspdfkit.ui.PdfActivity
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/**
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 * Opens the [PdfActivity] configured for viewing a scientific paper.
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 */
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class ScientificPaperExample(context: Context) : AssetExample(context, R.string.scientificPaperExampleTitle, R.string.scientificPaperExampleDescription) {
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    override val assetPath: String
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        get() = "Scientific-paper.pdf"
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    override fun prepareConfiguration(configuration: PdfActivityConfiguration.Builder) {
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        configuration.scrollMode(PageScrollMode.CONTINUOUS)
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        configuration.scrollDirection(PageScrollDirection.VERTICAL)
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        configuration.fitMode(PageFitMode.FIT_TO_WIDTH)
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        configuration.pagePadding(5)
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        configuration.setUserInterfaceViewMode(UserInterfaceViewMode.USER_INTERFACE_VIEW_MODE_VISIBLE)
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    }
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}