Mopinion Mobile SDK for iOS

Use the Mopinion Mobile SDK to collect feedback from iOS apps based on events. For this you can include the SDK as a Framework in your Xcode project.

Other Mopinion SDK's are also available:

• iOS web SDK
• Android native and web SDK

Contents

• Release notes
• 1. Installation
• 1.1 Install using Swift PM
• 1.2 Install using CocoaPods
• 2. Implement the SDK
• 2.1 Display a form
• 2.2 Submit extra data
• 2.3 Evaluate if a form will open
• 2.4 Using callback mode
• 3. Edit triggers

Release notes for version 1.2.1

Fixes in 1.2.1

• Fixed a retain cycle with the delegate or calling uiviewcontroller.
• Fixed the deployment condition "Show only on specific OS (and OS version)" to also work for versions specified with leading/trailing spaces.

Remarks

• This readme applies to both the CocoaPods and Swift Package Manager distribution, as the latter uses the same binaries as the GitHub release for CocoaPods.
• Built with Xcode 16.3, tested on iOS 18.

1. Installation

Install the Mopinion Mobile SDK Framework via either the Swift Package Manager or the popular dependency manager Cocoapods.

1.1 Install using Swift Package Manager in Xcode 16

1. If you no longer want to use CocoaPods for your project, then in terminal, at the root folder of your project execute:
   pod deintegrate
   After that you can optionally remove the <your-project-name>.xcworkspace if it is no longer needed.

2. Open your project's <your-project-name>.xcodeproj file in Xcode.

3. In Xcode, from the menu, select File -> Add Package Dependencies…. The Swift Package Collections panel appears.

4. In the search field of the panel, enter https://github.com/mopinion-com/mopinion-sdk-ios-swiftpm and press enter.

5. From the drop-down button Dependency Rule, choose one of the following options:

   • Exact Version and in the version field enter 1.2.1.
   • Up to Next Major Version and in the version field enter 1.2.1.

6. Click the button Add Package. A package product selection panel appears.

7. Choose MopinionSDK and click the button Add Package.

8. If Xcode 14.2 shows a warning PackageIndex.findPackages failed: featureDisabled, then clean your project, close the project and open your project again in Xcode. The warning will have disappeared.

1.2 Install using CocoaPods

Skip this section if you've installed with swiftpm.

1. Install CocoaPods if you didn't have it installed yet. From macOS Monterey 12.1 installation of cocoapods 1.11.2 works out of the box on ARM based Macs:

sudo gem install cocoapods

2. In the terminal, create a Podfile in the folder that contains your Xcode project :

platform :ios, '12.0'
use_frameworks!
target '<YOUR TARGET>' do
   pod 'MopinionSDK', '>= 1.2.1'
end

3. From that folder, install the needed pods:

$ pod install

4. After this, going forward you should use the newly created <your-project-name>.xcworkspace file to open in Xcode.

2. Implement the SDK

2.1 The basics to display a form

In your app code, for instance the AppDelegate.swift file, put:

import MopinionSDK
...
// debug mode
MopinionSDK.load("<MOPINION DEPLOYMENT KEY>", true)
// live
MopinionSDK.load("<MOPINION DEPLOYMENT KEY>")

Replace the <MOPINION DEPLOYMENT KEY> by your specific deployment key. Copy this key using a web browser from your Mopinion account, in side menu Data collection, section Deployments, via the button with symbol <>.

In an UIViewController, for example ViewController.swift, put:

import MopinionSDK
...
MopinionSDK.event(self, "_button")

where "_button" is the default name for a passive form event.

You are free to name events after custom events in your app and define them in the Mopinion deployment interface.

In the Mopinion system you can enable or disable the feedback form when (a user of) your app submits the event. The SDK will ignore unknown events, so you can implement all events beforehand in your app and freely assign/remove forms to them after your app has been released.

The event could be a touch of a button, at the end of a transaction, proactive, etc.

2.2 Submitting extra data

Your app can send extra (string based) data to your form.

2.2.1 Use the data() method

SDK version 0.3.1 introduced the data() method to supply a key and a value.

The data should be added before the event() method is called if you want to include the data in the form that comes up for that event.

MopinionSDK.data(_ key: String, _ value: String)

Example:

import MopinionSDK
...
MopinionSDK.load("abcd1234")
...
MopinionSDK.data("first name", "Steve")
MopinionSDK.data("last name", "Jobs")
...
MopinionSDK.event(self, "_button")

Note: In the set of meta data, the keys are unique. If you re-use a key, the previous value for that key will be overwritten.

2.2.2 clear extra data

From version 0.3.4 it's possible to remove all or a single key-value pair from the extra data previously supplied with the data(key,value) method. To remove a single key-value pair use this method:

MopinionSDK.removeData(forKey: String)

Example:

MopinionSDK.removeData(forKey: "first name")

To remove all supplied extra data use this method without arguments:

MopinionSDK.removeData()

Example:

MopinionSDK.removeData()

2.3 Evaluate if a form will open

The event() method of the SDK autonomously checks deployment conditions and opens a form, or not.

From SDK version 0.4.6 you can use the evaluate() and related methods to give your app more control on opening a form for proactive events or take actions when no form would have opened.

It can also be used on passive events, but such forms will always be allowed to open.

2.3.1 Procedure overview

1. Call the evaluate() method and pass it the delegate object that implements the MopinionOnEvaluateDelegate protocol.
2. In your delegate's callback method mopinionOnEvaluateHandler(), check the response parameters and retrieve the formKey if there is any.
3. Optionally, pass the formKey to the method openFormAlways() to open your form directly, ignoring any conditions in the deployment.

2.3.2 evaluate() method

Evaluates whether or not a form would have opened for the specified event. If without errors, the delegate object will receive the mopinionOnEvaluateHandler() call with the response.

func evaluate( _ event: String, onEvaluateDelegate: MopinionOnEvaluateDelegate )

Parameters:

• event: The name of the event as definied in the deployment. For instance "_button".
• onEvaluateDelegate : The object implementing the MopinionOnEvaluateDelegate protocol to handle the mopinionOnEvaluateHandler() callback method.

2.3.3 mopinionOnEvaluateHandler() method

Method where the app receives the response of the evaluate call. Defined by the MopinionOnEvaluateDelegate protocol. Note that in case of any system errors this may not be called at all.

func mopinionOnEvaluateHandler(hasResult: Bool, event: String, formKey: String?, response: [String : Any]?)

Parameters:

• hasResult: if true then the form identified by the formKey would have opened. If false then the form would not have opened and the formKey might be null in case no forms were found associated with the event.
• event: the original event name that was passed to the evaluate call to check in the deployment.
• formKey: identifying key of the first feedback form found associated with the event. Only one formKey will be selected even if multiple forms matched the event name in the deployment.
• response: optional dictionary object for extra response details on success/failure and forms. Reserved for future extensions.

2.3.4 openFormAlways() method

Opens the form specified by the formkey for the event, regardless of any proactive conditions set in the deployment.

func openFormAlways(_ parentView: UIViewController, formKey: String, forEvent: event) 

Parameters:

• parentView: Your UIViewController object that can act as a parent view controller for the SDK.
• formKey: key of a feedback form as provided by the mopinionOnEvaluateHandler() call.
• forEvent: The same event as passed to the evaluate() call. For instance "_button".

2.3.5 Example of using evaluate()

This snippet of pseudo code highlights the key points on how the aforementioned procedure fits together to implement the MopinionOnEvaluateDelegate protocol.

...
import MopinionSDK
...
// assuming that in your AppDelegate, you already did MopinionSDK.load(<MOPINION DEPLOYMENT KEY>)
...
class ViewController: UIViewController, MopinionOnEvaluateDelegate {
...
    func doSomething() {
        // check if a form would open                       
        MopinionSDK.evaluate("_myproactiveevent", onEvaluateDelegate: self)
        // the actual result will be in the mopinionOnEvaluateHandler call
    }
...
	// callback handler for protocol MopinionOnEvaluateDelegate
    func mopinionOnEvaluateHandler(hasResult: Bool, event: String, formKey: String?, response: [String : Any]?) {
        if(hasResult) {
            // at least one form was found and all optional parameters are non-null
            // because conditions can change every time, use the form key to open it directly
            MopinionSDK.openFormAlways(self, formKey: formKey!, forEvent: event)
        }else{
            if let _ = formKey {
                // Found form wouldn't open for event
                // we'll open it anyway using the formKey and event
                MopinionSDK.openFormAlways(self, formKey: formKey!, forEvent: event)
            }else{
                // no form found for event
                ...
            }
        }
    }
...

2.4 Using callback mode

By default the SDK manages the feedback form autonomously without further involving your app. SDK version 0.5.0 introduced callbacks to inform your code of certain actions (MopinionCallbackEvent).

Provide a callback handler to receive a response, containing either data or possible error information.

2.4.1 Procedure overview

1. Call the event() method and pass it a callback method that implements the MopinionCallbackEventDelegate.onMopinionEvent protocol.
2. In your callback method onMopinionEvent(), check the kind of mopinionEvent and optionally call didSucceed() or hasErrors() on the response to check for errors.
3. Optionally, call hasData() on the response object to check if there is data.
4. Depending on the kind of mopinionEvent, check for the presence of data specified by a ResponseDataKey using the call hasData(ResponseDataKey) on the response.
5. To get the data, call getString(ResponseDataKey) respectively getJSONObject(ResponseDataKey) on the response, depending on the type of data to retrieve.

You can also provide an optional error-callback handler to event() to seperately receive responses with error information. In that case the primary handler only receives responses without errors.

2.4.2 Callback variants of the event() method

Triggers an event you defined in your deployment to open a form and receive MopinionCallbackEvent callbacks. If you don't specify a failHandler, the callback handler will also receive error responses.

func event(parentView: event: onCallbackEvent:  onCallbackEventError:)
func event(parentView: event: onCallbackEventDelegate:)
func event(parentView: event: onCallbackEventDelegate:  onCallbackEventErrorDelegate:)

Parameters:

• parentView: The UIViewController that serves as parent view of the app.
• event: The name of the event as defined in the deployment for the form. For instance "_button".
• onCallbackEvent: a closure implementing the onMopinionEvent() callback.
• onCallbackEventError: a closure implementing the onMopinionEventError() callback for MopinionCallbackEvents that resulted in errors.
• onCallbackEventDelegate: The object implementing the MopinionCallbackEventDelegate protocol to handle the onMopinionEvent() callback.
• onCallbackEventErrorDelegate: The object implementing the MopinionCallbackEventErrorDelegate protocol to handle the onMopinionEventError() callback for MopinionCallbackEvents that resulted in errors.

2.4.3 Callback methods onMopinionEvent() and onMopinionEventError()

These methods you implement in your code to receive MopinionCallbackEvents. They have the same parameters to pass you a response with optional additional information. What information is provided depends on the type of MopinionCallbackEvent and its origin.

func onMopinionEvent(mopinionEvent: MopinionCallbackEvent, response: MopinionResponse)
func onMopinionEventError(mopinionEvent: MopinionCallbackEvent, response: MopinionResponse)

Parameters:

• mopinionEvent: The kind of response event that you receive from the SDK. Currently one of the following:

  • FORM_OPEN : when the form is shown
  • FORM_SENT : when the user has submitted the form
  • FORM_CLOSED : when the form has closed
  • NO_FORM_WILL_OPEN : when no form will open

• response: The MopinionResponse object containing additional information on the MopinionEvent. The response is never nil, but use its hasData() methods to check if it contains any additional data, or hasErrors() for errors.

2.4.4 MopinionResponse object

The data collection present in this object depends on the kind of MopinionCallbackEvent and its origin. The data is a key-value collection. Both data and errors can be missing. The response object contains methods to inspect and retrieve them.

Getting data with response.get() and response.hasData()

Check with hasData(key) first, as the get<>(key) methods can return null. Pass a standard ResponseDataKey to these methods for the data you're interested in.

ResponseDataKey	Method to read it	Description
DATA_JSONOBJECT	.getJSONObject()	dictionary of the 'raw' JSONObject with all available data
FORM_KEY	.getString()	an internal unique identifier for the form
FORM_NAME	.getString()	the name of the form. Distinct from the title of the form.

MopinionCallbackEvents and provided data in response

This is the data that can be present for a certain MopinionCallbackEvent:

MopinionCallbackEvent	ResponseDataKeys	Remarks
NO_FORM_WILL_OPEN	-
FORM_OPEN	DATA_JSONOBJECT
	FORM_KEY
	FORM_NAME
FORM_SENT	DATA_JSONOBJECT
	FORM_KEY
	FORM_NAME
FORM_CLOSED	DATA_JSONOBJECT	Currently only automatically closed forms provide data
	FORM_KEY	only when autoclosed
	FORM_NAME	only when autoclosed

The order in which MopinionCallbackEvents occur is:

1. NO_FORM_WILL_OPEN

- or - 
 
1. FORM_OPEN
2. FORM_SENT (only if the user submits a form)
3. FORM_CLOSED

Reading response errors

Call response.hasErrors() , followed by response.getError() to get the error object.
The getError() method might return nil.

At the moment there is only one pre-defined error condition:

MopinionCallbackEvent	response.getError()	Meaning
NO_FORM_WILL_OPEN	MopinionError.formConfigFormNotFound	The form associated with the event and deployment does not exist
NO_FORM_WILL_OPEN	any other	Other error prevented loading the form

2.4.5 Callback handler example to run code after send

Pseudo code to show the usage of the event() callback with closures and some involved objects to implement running code after send. You must wait for the form to be closed after send before running any code affecting your own UI.

...
import MopinionSDK
...
// assuming that in your AppDelegate, you already did MopinionSDK.load(<MOPINION DEPLOYMENT KEY>)
...
class YourViewController: UIViewController, MopinionOnEvaluateDelegate {
...
    var wasFormSent: Bool = false	// track state outside closure
...
    func demonstrateMopinionCallback() {
        self.wasFormSent = false
    
        // open the form associated with the event "_myfeedbackbutton" from the deployment and receive callbacks in the closures        
        MopinionSDK.event(self, "_myfeedbackbutton", onCallbackEvent: {  (mopinionEvent, response) -> (Void) in
            print("callback in success closure")
            if(mopinionEvent == .FORM_SENT) {
                let formKey = response.getString(.FORM_KEY)!
                print("The form with formKey=\(formKey) has been sent, but is still displayed")
                self.wasFormSent = true
            } else if(mopinionEvent == .FORM_CLOSED) {
                if(self.wasFormSent) {
                    let formKey = response.getString(.FORM_KEY) ?? ""
                    print("The form \(formKey) has beent sent and closed, now you can run some code.")
                }
            } else if(mopinionEvent == .NO_FORM_WILL_OPEN) {
                print("No form will open for this event.")
            }

        }, onCallbackEventError: { (mopinionEvent, response) -> (Void) in
            if let error = response.getError() {
                print("there was an error during callback: \(String(describing: error))")
            }
        } )
    }
...
}
...

3. Edit triggers

In the Mopinion deployment editor you can define event names and triggers that will work with the SDK event names that you used in your app. Login to your Mopinion account and go to Data collection, Deployments to use this functionality.

The custom defined events can be used in combination with rules/conditions:

• trigger: passive or proactive. A proactive trigger can show its form only once; you can set the refresh duration after which the trigger can fire again. A passive trigger behaves almost the same, but can fire every time as it ignores the refresh duration (except when the percentage condition is set)
• refresh duration: the number of days to wait before the trigger can fire again in an app instance, specified by the setting "Refresh condition settings per visitor after {x} days".
• submit: allow opening a proactive form until it has been submitted at least once. This affects the trigger rule, to allow opening a form more than once. Support for this appeared in SDK version 0.4.3.
• percentage: % of users that should see the form. This setting makes the trigger fire once per refresh duration, even if no form was shown or it is a passive trigger.
• date: only show the form at, after or before a specific date or date range
• time: only show the form at, after or before a specific time or time range
• target: only show the form for a specific OS (iOS or Android) and optional list of versions.