Disable text selection in PDF using Java for Android

1
/*
2
 *   Copyright © 2020-2025 PSPDFKit GmbH. All rights reserved.
3
 *
4
 *   The PSPDFKit Sample applications are licensed with a modified BSD license.
5
 *   Please see License for details. This notice may not be removed from this file.
6
 */
7

8
package com.pspdfkit.catalog.examples.kotlin
9

10
import android.content.Context
11
import android.net.Uri
12
import com.pspdfkit.Nutrient
13
import com.pspdfkit.catalog.R
14
import com.pspdfkit.catalog.SdkExample
15
import com.pspdfkit.catalog.tasks.ExtractAssetTask
16
import com.pspdfkit.configuration.activity.PdfActivityConfiguration
17
import com.pspdfkit.configuration.policy.ApplicationPolicy
18
import com.pspdfkit.ui.PdfActivityIntentBuilder
19

20
/**
21
 * Example of how to customize application policy preventing copy/paste action.
22
 */
23
class CustomApplicationPolicyExample(context: Context) : SdkExample(context, R.string.customApplicationPolicyExampleTitle, R.string.customApplicationPolicyExampleDescription) {
24

25
    override fun launchExample(context: Context, configuration: PdfActivityConfiguration.Builder) {
26
        // To customize the application policy we extend ApplicationPolicy.
27
        val customApplicationPolicy = CustomApplicationPolicy()
28

29
        // Application policy needs to be set before documents are loaded.
30
        Nutrient.setApplicationPolicy(customApplicationPolicy)
31

32
        // We use a custom utility class to extract the example document from the assets.
33
        ExtractAssetTask.extract(WELCOME_DOC, title, context) { documentFile ->
34
            // Open the example document in PdfActivity.
35
            val intent = PdfActivityIntentBuilder.fromUri(context, Uri.fromFile(documentFile))
36
                .configuration(configuration.build())
37
                .build()
38
            context.startActivity(intent)
39
        }
40
    }
41
}
42

43
/**
44
 * Custom Application policy that disables text copy and paste.
45
 */
46
class CustomApplicationPolicy : ApplicationPolicy() {
47
    override fun hasPermissionForEvent(event: PolicyEvent): Boolean {
48
        return when (event) {
49
            PolicyEvent.TEXT_COPY_PASTE ->
50
                // Disable text copy/paste policy.
51
                false
52
            else -> {
53
                // Enable remaining policies.
54
                true
55
            }
56
        }
57
    }
58
}