Custom UI for navigating between PDFs in Java for Android

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/*
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 *   Copyright © 2014-2025 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.java;
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import android.content.Context;
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import android.content.Intent;
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import androidx.annotation.NonNull;
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import com.pspdfkit.catalog.R;
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import com.pspdfkit.catalog.SdkExample;
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import com.pspdfkit.catalog.examples.java.activities.DocumentSwitcherActivity;
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import com.pspdfkit.configuration.activity.PdfActivityConfiguration;
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import com.pspdfkit.configuration.activity.TabBarHidingMode;
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import com.pspdfkit.document.providers.AssetDataProvider;
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import com.pspdfkit.ui.PdfActivityIntentBuilder;
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/**
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 * This example extends the default `PdfActivity` and adds a side navigation drawer that allows to
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 * switch between documents without leaving the activity.
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 */
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public class DocumentSwitcherExample extends SdkExample {
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    public DocumentSwitcherExample(Context context) {
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        super(
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                context.getString(R.string.documentSwitcherExampleTitle),
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                context.getString(R.string.documentSwitcherExampleDescription));
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    }
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    @Override
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    public void launchExample(
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            @NonNull final Context context, @NonNull final PdfActivityConfiguration.Builder configuration) {
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        // Use a custom activity and a custom PdfActivity subclass.
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        configuration
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                .hideUserInterfaceWhenCreatingAnnotations(false)
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                // Disable tab bar - example displays list of documents in a drawer instead.
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                .setTabBarHidingMode(TabBarHidingMode.HIDE)
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                // The custom layout has no content editor. In order to prevent the activity from accessing
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                // it we have to deactivate it in the configuration.
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                .contentEditingEnabled(false)
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                .layout(R.layout.activity_document_switcher);
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        // Launch the custom example activity using the (read-only) document from assets and
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        // configuration.
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        final Intent intent = PdfActivityIntentBuilder.fromDataProvider(context, new AssetDataProvider(WELCOME_DOC))
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                .configuration(configuration.build())
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                .activityClass(DocumentSwitcherActivity.class)
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                .build();
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        context.startActivity(intent);
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    }
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}