Survicate Flutter SDK

The Survicate Flutter SDK will increase your APK size by approximately 3 MB when obfuscated and your IPA size by approximately 2.2 MB. Note that the SDK features a Time To Live (TTL) mechanism of 60 seconds. This means any modifications made to your survey will be reflected on your respondents' devices after a delay of up to 60 seconds.

Requirements

• Using Survicate Mobile SDK requires an account at survicate.com. You can create your account here for free, or become invited to your company account by one of your colleagues.
• Additionally, please check iOS and Android library requirements, as they're applicable too.

Installation

To use this plugin, add survicate_sdk as a dependency in your pubspec.yaml file.

Configuration

Configuration for Android

1. Configure your workspace key in AndroidManifest.xml file.

2. Add the Survicate Maven repository to your project build.gradle located under android directory.

Configuration for iOS

1. Add workspace key to your Info.plist file.
   • Create Survicate Dictionary.
   • Define WorkspaceKey String in Survicate Dictionary. Your Info.plist file should looks like this:
2. Run pod update in your ios directory.

Initialization

Initialize the SDK in your application using initializeSdk() method. Call this method only once, in the main component (e.g lib/main.dart file).

Using SDK

Survicate allows you to launch precisely targeted surveys inside your app. In the Survicate Panel, you can set conditions that need to be met for the surveys to appear. Users matching conditions defined in the Survicate panel will see the survey automatically. Here's a list of conditions you can use to target your surveys:

• Name of the screen that a user currently sees
• Any application event
• User attributes and identities
• Language of the device
• Operating system

Make sure to list all the screens and events described in your application. Once you got this covered, you or any person responsible for creating and managing surveys will be able to trigger surveys from the Survicate panel with no need for you to update the application.

Targeting a survey by screen name

A survey can appear when a user is viewing a specific screen. For example, a survey can be triggered to show up on the application's home screen after a user spends more than ten seconds there. To set it up, you need to send information to Survicate about the user entering and leaving a screen.

Note: Multiple active screens are allowed. In specific, calling enterScreen() does not make the previous screen to be discarded. Be sure to call leaveScreen() when you no longer want the screen to be treated as active.

Screen name is case sensitive. If there's any discrepancy between what's declared in the ‘Screens’ tab of the Target section in the Survicate panel and the application code, the survey will not appear.

Events-based survey targeting

The SDK allows you to launch surveys based on events your users trigger in your app. Your survey will show instantly after an event occurs in your app.

Event name and property keys are case sensitive. If there is any discrepancy between what's declared in the ‘Triggers’ tab of the Target section in the Survicate panel and the application code, the survey will not appear.

Passing user attributes

You can provide user attributes to Survicate as an extra layer of information about your users. The attributes have various use cases:

• Identification of survey participants (answers are anonymous by default).
• Directing surveys to particular users (Audience filters).
• Filtering responses.
• Recalling data in questions.

Bear in mind that user attributes are cached. You only need to provide them once, e.g. when user logs in, not after each initilization. You can also change their values at any time to trigger a survey.

Attribute types

• string: any text.
• num: an integer or decimal.
• bool: a logic value.
• dateTime: a dart:core DateTime object which can be used with date or time interval filters in the panel (the latter measure elapsed time from a given timestamp).

Special attributes

• user_id: This corresponds to the "Logged-in status" in the panel's Audience filter. A user is considered logged-in when a trait with the "user_id" key has been set on the device, regardless of the value.

• first_name, last_name, email: If none of these is specified, a response will be marked as Anonymous in the panel.

Additional notes
You can set your own attribute keys without any prior registration. They will show up in the panel once any response with the attribute is uploaded.

Reseting user data for testing purposes

If you need to test surveys on your device, reset() method might be helpful. This method will reset all user data stored on your device (survey views, attributes, information about answered surveys for the targeting engine).

Event listeners

SDK allows you to utilize event listeners. You may find them useful to trigger actions in your application based on actions performed by respondents. Here's a list of events you can subscribe to:

• onSurveyDisplayed - occurs when survey is loaded and appears in the User Interface
• onQuestionAnswered - occurs after a question is answered ( Survicate stores incomplete survey submissions )
• onSurveyClosed - occurs when a user closes the survey using the close button
• onSurveyCompleted - occurs when a user finishes the survey

SurvicateAnswer properties (QuestionAnsweredEvent.answer)

The id, ids and value properties are provided only for the cases enlisted in the table above. Therefore, expect that there might be answer objects that consist only of the type property.

Changelog

6.2.0 (2025-03-18)

New

You can add images to every question type. Available image placement options are above and under the questions.

Updated

Bumping up reference of Android to 6.2.0.
Bumping up reference of iOS to 6.2.0.

6.1.0 (2025-03-12)

New

You can add a disclaimer with or without a consent checkbox to all question types.

Improved

Enhanced support for landscape orientation.

Updated

Bumping up reference of Android to 6.1.0.
Bumping up reference of iOS to 6.1.0.

Fixed

The "has any value" logic condition in Matrix question now applies also to partial and empty answers.

6.0.0 (2025-02-19)

Breaking

SDK requires CompileSDK 34 or higher
SDK requires minimum deployment target of iOS 14.

New

Survey logic has been split into 2 types - Branch and Display logic.
Branch logic includes all the previously available logic settings that allow you to select which question your respondents should see next based on their response to the current question.
A new type of logic - Display logic - allows you to decide whether the current question should be shown or not based on the respondents’ answers to the questions earlier in the survey.

Improved

Surveys are now displayed consecutively, if more than one survey meets the targeting criteria (instantly recurring surveys without event trigger will result in showing the survey in a loop).
Improved animation on survey close and completion.

Updated

Bumping up reference of Android to 6.0.0.
Bumping up reference of iOS to 6.0.0.

Fixed

An issue on iOS with answer selection in shape question.

5.5.2 (2024-12-20)

Fixed

Fixed an issue with Android's getNetworkCapabilities method that could occasionally cause exceptions during SDK initialization.
Fixed a crash on iOS caused by non-thread-safe access to localizedDescription during error logging.

5.5.1 (2024-12-10)

Fixed

Fixed an issue on iOS where comments were missing in event listeners.
Fixed an issue on iOS where in Smiley Scale question in some cases the submit button was disabled.
Fixed an issue on iOS with missing submit button in Multiple Answer question.
Fixed an issue on iOS with missing comment field in CSAT question when answer is mandatory.

5.5.0 (2024-12-06)

New

You can now add a comment field to NPS, Smiley scale, Rating scale, Matrix, and Date question types. There is also a comment title available for all comment fields. You can use it to ask a question and give your respondents some context of what you would like to see in the comment.

Updated

AndroidX Annotation to 1.9.1
Coroutines Android to 1.9.0

5.4.0 (2024-10-23)

New

Each question type except Welcome message, Date, and Thank you screen can be set as mandatory or optional.

Improved

Accessibility features for Matrix question, survey progress indicator, and navigation buttons.

5.3.0 (2024-09-13)

New

Once an event is invoked in the app, its name and property names are also sent to Survicate’s panel now. They will be shown as suggestions when a user configures event targeting of a survey.

5.2.0 (2024-09-05)

New

New conditions are available in event targeting:
Time delay after event occurrence
Number of event occurrences
Time of the first occurrence
Time of the last occurrence
If multiple conditions are applied, all of them should be met for a survey to appear.

Updated

Bumping up reference of Android to 5.2.0.
Bumping up reference of iOS to 5.2.0.

Fixed

Fixed an issue with submit button visibility in single choice question on iOS.

5.1.1 (2024-08-01)

Updated

Bumping up reference of Android to 5.1.1.
Bumping up reference of iOS to 5.1.2.

Improved

More distinguishable emojis in the 3-choice Smiley scale.

Fixed

Excessive spacing between Smiley scale emojis in the 3-choice layout.
Back button icon color on dark backgrounds on Android.
An issue on Android where "Submit" was displayed instead of "Start Survey" on the welcome CTA point after navigating back to it.
Issue on iOS with non visible Submit button in multiple choice questions.

5.1.0 (2024-07-19)

New

Navigation buttons are available now. When enabled, your survey respondents can go back to the previous questions, see their selected answers, and change them if necessary.

Improved

Higher resolution of Smiley scale icons on Android.

Updated

Bumping up reference of Android to 5.1.0.
Bumping up reference of iOS to 5.1.1.

Fixed

Propagating Matrix answer in SurvicateAnswer.value of event listener.
An issue on Android that resulted in unexpected vertical padding for Matrix question in full screen mode.
Configuration json will be printed in console only in verbose log level on iOS.

5.0.0 (2024-06-19)

New

Matrix question type added.

Updated

Bumping up reference of Android to 5.0.0.
Bumping up reference of iOS to 5.0.0.

Fixed

UI state bugs related to Activity's configuration changes.
Animation resource names that could conflict with resources of the app or other libraries on Android.
An issue on iOS where setUserTraits cleared previously set user traits.

4.4.0 (2024-05-09)

New

New targeting option available - event properties. You can add multiple properties to one event and join them with either “or” or “and” operator.
Property names and values are case-sensitive. Only string values are supported.
SDK now supports listeners.

Updated

Bumping up reference of Android to 4.4.0.
Bumping up reference of iOS to 4.4.0.

Fixed

A bug in Android that could prevent a survey from being displayed if a delay was set for multiple screens in the panel.
Horizontal mode support for Numerical Rating question for up to 5 items in Android.

4.3.0 (2024-03-26)

New

More flexible survey recurring options are available now. Now you can specify how many days / weeks / months / years should pass before the survey can appear again. It’s also possible to set after how many days / weeks / months / years the survey should stop recurring.
If you run several mobile surveys, now you can use survey throttling settings to specify a time frame that should pass between showing them. Use global throttling to set the same time frame for all your mobile surveys. Or use the survey level throttling to override the global settings and specify a different period before showing a particular survey.

Updated

Bumping up reference of Android to 4.3.0.
Bumping up reference of iOS to 4.3.0.

Fixed

Issue with recursive display of non-recurring survey on iOS.

4.2.0 (2024-03-20)

New

New targeting filter is available - screen orientation (portrait mode or landscape mode targeting). You can either include or exclude one of the orientation modes.

Updated

Bumping up reference of Android to 4.2.0.
Bumping up reference of iOS to 4.2.0.

Improved

Performance enhancements in answers synchronization on Android.

Fixed

An issue where SurveyActivity could crash when it was restored after process termination on Android.
A race condition in the recalling feature on Android.

4.0.1 (2024-01-23)

Updated

Bumping up reference of Android to 4.0.2.
Bumping up reference of iOS to 4.0.2.

Improved

Date format in user traits recalling

Fixed

A bug where users could see survey more times than specified in recurrence settings if SDK was updated in meantime
Sending user attributes to backend only when necessary in Android
An issue where Thank you screen don't close survey in classic theme in iOS

4.0.0 (2024-01-09)

New

User conditions targeting is changed to the audience targeting: create an audience that will be available for usage among all your mobile surveys. Enable multiple audiences at the same time in one survey if necessary
User attributes now support not only string values but also numbers, boolean, and datetime values
New attribute operators are available to support new data types
Survey audience can be set not only by including a set of respondents who met the required criteria but also by excluding those who should not see the survey
And / or operators in audience targeting are switchable now: within one attribute filter that has several attributes in it and between different filters

Breaking

Method setUserTrait now takes single UserTrait argument instead of two String arguments.
Method setUserTraits now takes List<UserTrait> argument instead of Map<String, String> argument.

Updated

Bumping up reference of Android to 4.0.1.
Bumping up reference of iOS to 4.0.0
Use NetworkCapabilities to check internet connection (API 24+)
Migrate to WindowCompat APIs for setting full screen background

Fixed

Fixed invalid survey closing when app has specified android:enableOnBackInvokedCallback="true" in the AndroidManifest.xml

3.0.5 (2023-12-14)

Updated

Bumping up references: Android to 3.0.6.
AGP to 8.1.2.
Kotlin to 1.9.10.
AndroidX RecyclerView to 1.3.2.
Creating User Trait requires non null key.
Added a Proguard rule for User Traits.

Fixed

Issue on Android with saving User Traits that could cause crash whenever saved User Trait key was null.
Issue on Android where answers saved without internet were not synchronized in next app sessions.
Issue on Android with javadoc generation.

3.0.4 (2023-10-02)

Fixed

Bumping up references: Android to 3.0.4 and iOS to 3.0.4
Issue on iOS where surveys were not translated when app language was set to dialect.
Issue on iOS where rating scale question answer ID was missing in listener.
On Android, added image scaling to shapes rating questions to fit all answers on the screen in horizontal layout.
Issue on Android on Thank You question with button's title not using text from survey settings.
Issue on Android where in some cases survey was not dismissible.

3.0.2 (2020-09-19)

New

First version of the SDK, with references to the native Survicate SDKs version 3.0.2.