Mopinion Native Android SDK

The Mopinion Native Android SDK has been developed 100% in native Kotlin, powerful tool to collect users feedback from an Android App based on events.

Contents

• Mopinion Native Android SDK
  • Contents
  • Release notes for version 2.0.0 🎉
    • What's changed:
  • Installation
    • Step 1:
    • Step 2:
    • Step 2 using Versions Catalog
    • Step 3:
    • Step 4:
    • On API versions \< 26 O (Oreo)
  • Implementing the SDK
  • Kotlin
  • Jetpack Compose implementation 🚀
  • Java:
  • Ignore form rules
  • Extra data
  • Clear Extra Data
    • Example:
  • Implementing FormState Callbacks
    • Kotlin Example:
    • Java Example:
  • Flutter Integration

Release notes for version 2.0.0 🎉

What's changed:

• Now there is only one initialise method.
• Now there is only one event method with an optional formStateListener lambda.
• Caching concurrency processes have been improved, now they are more efficient.
• Implemented Modular Clean Architecture 🎉

Installation

• Install the Mopinion Native Android SDK Library by following the next steps.
• Download our Mopinion Forms app from the Google Play Store to preview what your mobile forms will look like in your app.

Step 1:

Add the JitPack repository to your build.gradle root file. Add it at the end of repositories:

allprojects {
        repositories {
            ...
            maven { url 'https://jitpack.io' }
        }
    }

In newer versions of Android Studio this repository will have to be set in settings.gradle file of the project as the following:

dependencyResolutionManagement {
    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
    repositories {
        google()
        mavenCentral()
        maven {
            ...
            url 'https://www.jitpack.io'
        }
    }
}

Step 2:

Install the Mopinion Native Android SDK by adding it to the build.gradle module level of your project. The minimal required Android API is 21.

dependencies {
    //For the full version
    implementation 'com.mopinion.native-android-sdk:mopinion-sdk:2.0.0'
    //For the webview version
    implementation 'com.mopinion.native-android-sdk:webview-sdk:2.0.0'
}

Step 2 using Versions Catalog

[versions]
mopinion="CURRENT_VERSION"
...

[libraries]
mopinion-sdk = { group = "com.mopinion.native-android-sdk", name = "mopinion-sdk", version.ref = "mopinion" }

Step 3:

The library needs to communicate with Mopinion Servers, please make sure you have the Internet permission in your AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.app">

        <uses-permission android:name="android.permission.INTERNET" />

        <application
        ...

Step 4:

This SDK contains view components that extend from MaterialComponents. Your application theme needs to extend from a MaterialComponents theme. In case you can not change the application theme, and you have to use AppCompat themes mandatory, then you can use a MaterialComponent Bridge theme. Both Theme.MaterialComponents and Theme.MaterialComponents.Light have .Bridge themes:

• Theme.MaterialComponents.Bridge
• Theme.MaterialComponents.Light.Bridge
• Theme.MaterialComponents.NoActionBar.Bridge
• Theme.MaterialComponents.Light.NoActionBar.Bridge
• Theme.MaterialComponents.Light.DarkActionBar.Bridge

Bridge themes inherit from AppCompat themes, but also define the new Material Components theme attributes for you. If you use a bridge theme, you can start using Material Design components without changing your app theme.

For more information, please visit MaterialComponents implementation steps.

On API versions < 26 O (Oreo)

This SDK implements Java LocalDateTime, which is not available on lower versions of Java 8 APIs, to be able to use it, you will have to apply the desugar plugin to your build.gradle (App module) as the following:

defaultConfig {
        // Required when setting minSdkVersion to 20 or lower
        multiDexEnabled true
    }

compileOptions {
        coreLibraryDesugaringEnabled true
        ...
    }

    dependencies {
    ...
    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
    ...
}

Implementing the SDK

Kotlin

• In your MainActivity.kt, Mopinion object will be initialised, it will require two values, one Application and one String with the deployment key, as the following:

Mopinion.initialise(this.application, "DEPLOYMENT_KEY")

• Once Mopinion is initialised, it is possible to instantiate Mopinion object wherever we need it, keep in mind that it's processes will be lifecycle aware, to instantiate a Mopinion object it will require one value, an AppCompatActivity or FragmentActivity:

  Activity:

import com.mopinion.mopinion_android_sdk.*

class SomeActivity : AppCompatActivity() {
    private lateinit var mopinion: Mopinion

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        //This can be called from onCreate()
        mopinion = Mopinion(this)
        //Somewhere in the class where needed, .event can be called.
        mopinion.event("action") {
        }
    }
}

• Fragment:

import com.mopinion.mopinion_android_sdk.*

class SomeFragment : Fragment() {
    private lateinit var mopinion: Mopinion

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        //This can be called from onViewCreated()
        mopinion = Mopinion(requireActivity())
        //Somewhere in the class where needed, .event can be called.
        mopinion.event("action") {
        }
    }
}

Jetpack Compose implementation 🚀

We do support FragmentActivity and AppCompatActivity which are completely compatible with Jetpack Compose and are non limiting or causing any deprecation to your project.

In order to use the SDK, your MainActivity needs to extend either from FragmentActivity or AppCompatActivity.

We do suggest the following init implementation as example:

class MainActivity: FragmentActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        Mopinion.initialise(this.application, "DEPLOYMENT_KEY")

        setContent {
            MyApplicationTheme(dynamicColor = false) {
                Surface(
                    modifier = Modifier.fillMaxSize(),
                    color = MaterialTheme.colorScheme.background,
                ) {
                    Navigation()
                }
            }
        }
    }
}

And in order to construct the Mopinion object in your Composable, we will need either a FragmentActivity or an AppCompatActivity too.

We do suggest the following Mopinion construction implementation:

@Composable
fun MyScreen() {
  val fragmentActivity = LocalContext.current as? FragmentActivity ?: handleException() //here you can handle the exception if the local context is not a FragmentActivity.
  val mopinion = remember { Mopinion(fragmentActivity) }
  Text(
    text = "Stop guessing, start knowing!",
    modifier = Modifier
      .clickable {
        mopinion.event("YourEventName")
      }
  )
}

Java:

• In your MainActivity.java, Mopinion object will be initialised, it will require two values, one Application and one String deployment key, as the following:

Mopinion.Companion.initialise(this.application, "DEPLOYMENT_KEY");

• Once Mopinion is initialised, it is possible to instantiate Mopinion object wherever we need it, keep in mind that it's processes will be lifecycle aware, to instantiate a Mopinion object it will require one value, an AppCompatActivity or FragmentActivity:
• Activity:

public class SomeActivity extends AppCompatActivity {

    private Mopinion mopinion;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.some_activity);

        mopinion = new Mopinion(this);
        mopinion.event("action", formState -> Unit.INSTANCE);
    }
}

• Fragment:

public class SomeFragment extends Fragment {

    private Mopinion mopinion;

    @Override
    protected void onViewCreated(Bundle savedInstanceState) {

        mopinion = new Mopinion(requireActivity());
        mopinion.event("action", formState -> Unit.INSTANCE);
    }
}

• The Activity or FragmentActivity will be used to implement the lifecycle safe coroutine launch method repeatOnLifecycle().
• The initialise should contain your deployment key. This key can be found in your Mopinion account at the Feedback forms section under Deployments.
• The event is a specific event that can be connected to a feedback form action in the Mopinion system. The default action event triggers the form, but an unlimited number of custom events can also be added.
• event is an optional lambda function, which receives a FormState Sealed Class containing the different FormStates, it also contains within its data classes:
  • FormSent contains FeedbackPostModel object with the data that has been sent.
  • FormError contains hasErrors: Boolean and the errorMessage: String.

Ignore form rules

The function event, receives a mandatory String parameter named eventName. Also, receives an optional parameter named ignoreProactiveRules which by default is set to false. You can set ignoreProactiveRules to true to ignore all form rules and show the form.

  ///example:
  mopinion.event(eventName = "myEvent", ignoreProactiveRules = true) { formState ->

  }

Extra data

It's also possible to send extra data from the app to your form. To do this, supply a key and a value to the data() method. Add the data before calling the event() method if you want to include the data in the form that comes up for that event.

mopinion.data(key as String, value as String)

import com.mopinion.mopinion_android_sdk.*

val mopinion = Mopinion(this / requireActivity(), "$FORM_KEY")
mopinion.data("first name", "Andy")
mopinion.data("last name", "Rubin")
...
mopinion.event(eventName as String)

Clear Extra Data

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:

mopinion.removeData(key as String)

Example:

mopinion.removeData("first name")

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

mopinion.removeData()

Implementing FormState Callbacks

The event() function is a lambda function which once has been executed, receives a Sealed Class FormState. This behaviour is meant to indicate in which state the Form is. This class contains the following States: State	Methods	Description
Loading	No methods	Is emitted when the form is loading.
FormOpened	No methods	Is emitted once the form is opened.
FormSent	.feedbackPostModel/.getFeedbackPostModel()	Is emitted once the user submits the form. This Object contains FeedbackPostModel, which is the form with the data the user has submitted.
FormCanceled	No methods	Is emitted when the form is canceled (tapping outside of the BottomSheetDialogFragment or the back arrow).
FormClosed	No methods	Is emitted when the form is submitted and closes automatically, or when the form logic is set to auto-close when the form is submitted.
Error	.message/.getMessage: String, .hasErrors/.getHasErrors(): Boolean	Is emitted when an error occurs when the form is being submitted.
HasNotBeenShown	.reason/getReason(): Reason	Is emitted when due to circumstances that can not be determined as errors occur. This state has as constructor a Reason which gives a clear reason of why the form is not showing up.
Redirected	.redirectInfo: RedirectInfo?	Emitted when a link has been clicked in the SDK, with the LinkComponent and the user has been redirected to a URL in the browser. The RedirectInfo contains data of that redirection such as event: String, formKey: String, formName: String, triggerMethod: String, url: String, redirectInfoError: String?

As mentioned in the HasNotBeenShown State, this state contains a Reason explaining why the form did not showed up. The possible reasons by the moment are the following: Reason	Methods	Description
ErrorWhileFetchingForm	.exception/.getException(): Exception	This reason is provided when fetching the form an error occurs, it contains an Exception.
DoesNotMatchProactiveRules	No methods	This reason is provided when the form rules does not match the required criteria to be shown.
EventDoesNotExist	No methods	The event provided does not exist on the deployment.
FormDoesNotExist	No methods	The form key required does not exist on backend, meaning the form key to which the GET call has been made returns an empty form. This can occur because the form has been deleted and the deployment has not been updated.

Kotlin Example:

mopinion.event(event) { formState ->
    when (formState) {
        is FormState.Error -> {
            if (formState.hasErrors) {
                //do something...
                val errorMessage = formState.message
            }
        }
        FormState.FormCanceled -> {
            //do something...
        }
        FormState.FormClosed -> {
            //do something...
        }
        FormState.FormOpened -> {
            //do something...
        }
        is FormState.FormSent -> {
            //do something...
            val postedObject = formState.feedbackPostModel
            //postedObject is the object that contains the form data that has been submitted. 
        }
        FormState.Loading -> {
            //do something...
        }
        is FormState.HasNotBeenShown -> {
          //do something...
          //check why the form did not shown up:
          val reasonOfWhyDidNotShowUp = formState.reason
        }
    }
}

If some of the States will not be used, just set the else and empty curly braces:

mopinion.event(event) { formState ->
    when (formState) {
        is FormState.Error -> {
            if (formState.hasErrors) {
                //do something...
                val errorMessage = formState.message
            }
        }
        is FormState.FormSent -> {
            //do something...
            val postedObject = formState.feedbackPostModel
            //postedObject is the object that contains the form data that has been submitted. 
        }
        else -> {
            //do nothing.
        }
    }
}

Java Example:

class SomeClass extends AppCompatActivity {
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.some_activity);

    mopinion.event("action", formState -> {
      if (formState instanceof FormState.Loading) {
            //do something...
      }
      if (formState instanceof FormState.FormOpened) {
        //do something...
      }
      if (formState instanceof FormState.FormSent) {
        //do something...
        // So we can extract the posted object.
        FeedbackPostModel postedObject = ((FormState.FormSent) formState).getFeedbackPostModel();
      }
      if (formState instanceof FormState.FormCanceled) {
        //do something...
      }
      if (formState instanceof FormState.FormClosed) {
        //do something...
      }
      if (formState instanceof FormState.Error) {
        //do something...
        // It is possible to check if it has errors and extract the error message.
        if (((FormState.Error) formState).getHasErrors()) {
            String errorMessage = ((FormState.Error) formState).getMessage();
        }
      }
      if (formState instanceof FormState.HasNotBeenShown) {
        //do something...
        //check why the form did not show up:
        Reason reasonOfWhyDidNotShowUp = ((FormState.HasNotBeenShown) formState).getReason();

      }
      return Unit.INSTANCE;
    });
  }
}

If some of the States will not be used, just do not implement the if sentence. Always keep the return Unit.INSTANCE in Java.

Flutter Integration

To be able to use our Native SDK in a Flutter project, please go to the Flutter Integration SDK repository and follow the instructions.