--- title: "Form Filling" canonical_url: "https://www.nutrient.io/guides/android/samples/form-filling-kotlin/" md_url: "https://www.nutrient.io/guides/android/samples/form-filling-kotlin.md" last_updated: "2026-05-15T19:10:04.916Z" description: "Fill text fields, checkboxes, and radio buttons programmatically using FormProvider." --- # Form Filling Fill text fields, checkboxes, and radio buttons programmatically using FormProvider. [Get Started](https://www.nutrient.io/sdk/android/getting-started.md) [All Samples](https://www.nutrient.io/guides/android/samples.md) [Download](https://www.nutrient.io/guides/android/downloads.md) [Launch Demo](https://www.nutrient.io/demo/) --- ```kotlin /* * Copyright © 2020-2026 PSPDFKit GmbH. All rights reserved. * * The PSPDFKit Sample applications are licensed with a modified BSD license. * Please see License for details. This notice may not be removed from this file. */ package com.pspdfkit.catalog.examples.kotlin import android.content.Context import android.net.Uri import android.view.Menu import android.view.MenuItem import androidx.annotation.UiThread import com.pspdfkit.catalog.R import com.pspdfkit.catalog.SdkExample import com.pspdfkit.catalog.tasks.ExtractAssetTask import com.pspdfkit.configuration.activity.PdfActivityConfiguration import com.pspdfkit.document.PdfDocument import com.pspdfkit.forms.CheckBoxFormElement import com.pspdfkit.forms.FormType import com.pspdfkit.forms.RadioButtonFormElement import com.pspdfkit.forms.RadioButtonFormField import com.pspdfkit.forms.TextFormElement import com.pspdfkit.forms.TextInputFormat import com.pspdfkit.ui.PdfActivity import com.pspdfkit.ui.PdfActivityIntentBuilder import io.reactivex.rxjava3.disposables.CompositeDisposable import io.reactivex.rxjava3.disposables.Disposable /** * Showcases how to fill forms programmatically. */ class FormFillingExample(context: Context) : SdkExample(context, R.string.formFillingExampleTitle, R.string.formFillingExampleDescription) { override fun launchExample(context: Context, configuration: PdfActivityConfiguration.Builder) { // Turn off saving, so we have the clean original document every time the example is launched. configuration.autosaveEnabled(false) // Enable form editing UI. configuration.formEditingEnabled(true) // Extract the example document from the assets. ExtractAssetTask.extract("Form_example.pdf", title, context) { documentFile -> val intent = PdfActivityIntentBuilder.fromUri(context, Uri.fromFile(documentFile)).configuration(configuration.build()).activityClass(FormFillingActivity::class).build() context.startActivity(intent) } } } class FormFillingActivity : PdfActivity() { /** Holds disposables for all async operations done in this example. We dispose this when destroying the activity. */ private val disposables = CompositeDisposable() @UiThread override fun onDocumentLoaded(document: PdfDocument) { super.onDocumentLoaded(document) fillAllFormFields() } /** * Fills form fields in the document with text "Example ". */ private fun fillAllFormFields() { val document = document?: return document.formProvider.formElementsAsync.subscribe { formElements -> for (formElement in formElements) { when (formElement.type) { FormType.TEXT -> { val textFormElement = formElement as TextFormElement when (textFormElement.inputFormat) { TextInputFormat.DATE -> textFormElement.setText("03/14/1994") else -> textFormElement.setText("Example " + formElement.getName()) } } FormType.CHECKBOX -> { (formElement as CheckBoxFormElement).toggleSelection() } FormType.RADIOBUTTON -> { (formElement as RadioButtonFormElement).toggleSelection() } else -> { Unit } } } }.addToDisposables() } /** * Resets all form fields in the document to their default values. */ private fun resetForm() { val document = document?: return document.formProvider.formFieldsAsync.subscribe { formFields -> for (formField in formFields) { formField.reset() } }.addToDisposables() } /** * Shows how to query form fields/elements by their name. */ private fun fillByName() { val document = document?: return // Form fields can be queried by their fully qualified name. // Each form field can have multiple child form elements that are // the widget annotations that are visually representing actionable // controls inside the form field. document.formProvider.getFormFieldWithFullyQualifiedNameAsync("Sex").subscribe { formField -> val formElement = formField as RadioButtonFormField // Sex radio button field has 2 child form elements. These represent 2 radio buttons in the radio group. // First radio element has the name "Sex.0" and represents the MALE option. // formElement.getFormElements().get(0) // Second radio element has name "Sex.1" and represents the FEMALE option. // formElement.getFormElements().get(1) // Select the MALE radio option. formElement.formElements[0].select() }.addToDisposables() // Form elements (visible portion of the form field) can be queried by their name and filled that way. document.formProvider.getFormElementWithNameAsync("First Name").subscribe { formElement -> (formElement as TextFormElement).setText("John") }.addToDisposables() document.formProvider.getFormElementWithNameAsync("Last Name").subscribe { formElement -> (formElement as TextFormElement).setText("Appleseed") }.addToDisposables() // Querying form elements by name can be slow. If you need to fill many form elements // at once, retrieve list of all form fields/elements first and iterate through it. document.formProvider.formElementsAsync.subscribe { formElements -> // For the sake of example we'll fill only address fields here. val formFillMap = mapOf( "Address_1" to "7440-7498 S Hanna St.", "Address_2" to "", "City" to "Fort Wayne", "STATE" to "IN", "ZIP" to "46774", ) formElements.asSequence().filterIsInstance(TextFormElement::class.java).forEach { textElement -> formFillMap[textElement.name]?.let { textElement.setText(it) } } }.addToDisposables() } override fun onCreateOptionsMenu(menu: Menu): Boolean { super.onCreateOptionsMenu(menu) menu.add(0, RESET_FORM_MENU_ITEM_ID, 0, "Reset form") menu.add(0, FILL_BY_FIELD_NAME, 0, "Fill by field name") return true } override fun onOptionsItemSelected(item: MenuItem): Boolean = when (item.itemId) { RESET_FORM_MENU_ITEM_ID -> { resetForm() true } FILL_BY_FIELD_NAME -> { fillByName() true } else -> { super.onOptionsItemSelected(item) } } override fun onDestroy() { super.onDestroy() disposables.clear() } private fun Disposable.addToDisposables() = disposables.add(this) companion object { private const val RESET_FORM_MENU_ITEM_ID = 1 private const val FILL_BY_FIELD_NAME = 2 } } ``` This code sample is an example that illustrates how to use our SDK. Please adapt it to your specific use case. --- ## Related pages - [Application Policy](/guides/android/samples/application-policy-kotlin.md) - [Custom Form Highlight Color](/guides/android/samples/custom-form-highlight-color-java.md) - [Custom Page Templates](/guides/android/samples/custom-page-templates-java.md) - [Digital Signature (Basic)](/guides/android/samples/digital-signature-basic-kotlin.md) - [Disabled Annotation Property](/guides/android/samples/disabled-annotation-property-java.md) - [Image Document](/guides/android/samples/image-document-kotlin.md) - [Compose Image Document](/guides/android/samples/compose-image-document-kotlin.md) - [Inline Multimedia](/guides/android/samples/inline-multimedia-kotlin.md) - [JavaScript Form Filling](/guides/android/samples/javascript-form-filling-kotlin.md) - [Overlay Visibility](/guides/android/samples/overlay-visibility-kotlin.md) - [PdfFragment](/guides/android/samples/pdffragment-kotlin.md) - [Reader View](/guides/android/samples/reader-view-kotlin.md) - 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