Flutter for Android

You can set up mobile apps to work with Contact Center AI Platform (CCAI Platform) in a number of ways, including with Flutter. This page shows you how to integrate the Android SDK into an Android app using Flutter.

Before you begin

Before following the instructions on this page, you must first follow the instruction in Integrate using Flutter.

Integrate the SDK into an Android app

To integrate the SDK into an Android app, follow these steps:

In the android/build.gradle file in your Flutter example directory, update minSdkVersion to 21 or later.

In the android/src/main/AndroidManifest.xml file, add the following:

<application>
  <activity
    android:name="co.ujet.android.activity.UjetActivity"
    android:exported="true">
    <intent-filter>
      <action android:name="android.intent.action.VIEW"/>
      <category android:name="android.intent.category.DEFAULT"/>
      <category android:name="android.intent.category.BROWSABLE"/>
      <!-- TODO: Change to your custom URL scheme. Config from Portal > Developer Settings > Mobile App > Enable Send SMS to Download App > Android App > URL -->
      <data
        android:host="co.ujet.flutter_example_app"
        android:path="/smartchannel"
        android:scheme="ujet" />
    </intent-filter>
  </activity>

  <meta-data
        android:name="co.ujet.android.companyKey"
        android:value="@string/ujet_company_key"/>
  <meta-data
      android:name="co.ujet.android.companyName"
      android:value="@string/ujet_company_name"/>
  <meta-data
      android:name="co.ujet.android.subdomain"
      android:value="@string/ujet_subdomain"/>
  <meta-data
      android:name="co.ujet.android.companyUrl"
      android:value="@string/ujet_company_url"/>
</application>

In the <application> tag, update the android:name value to .Application, as in the following code sample:

<!--Change the value of android:name to .Application -->
<application
  android:name=".Application"
  android:label="Demo Application"
  android:icon="@mipmap/ic_launcher">

Update android/build.gradle, as in the following code sample:

allprojects {
  repositories {
    google()
    mavenCentral()
    maven {
      url "https://sdk.ujet.co/android/"
    }
  }
}

Update android/app/build.gradle, as in the following code sample:

dependencies {
  // Use UJET SDK version 2.6.0 or latest to support recent push notification changes.
  def ujetSdkVersion = "x.y.z"
  implementation "co.ujet.android:ujet-android:$ujetSdkVersion"
  implementation "co.ujet.android:cobrowse:$ujetSdkVersion"
}

Update res/values/strings.xml, as in the following code sample. Create this if it doesn't exist.

<resources>
  <string name="ujet_company_key">YOUR_COMPANY_KEY</string>
  <string name="ujet_company_name">YOUR_COMPANY_NAME</string>

  <!-- If your tenant / portal url ends with "ujet.co" then set ujet_subdomain string only (ignore
      ujet_company_url), otherwise set ujet_company_url only (ignore ujet_subdomain) following below instructions. -->
  <!-- To get subdomain, extract string content between 'https://' and first '.' of your tenant/portal URL.
      Example, If your tenant url is https://XXX.YYY.ZZZ/ then subdomain will be XXX -->
  <string name="ujet_subdomain">YOUR_SUBDOMAIN</string>

  <!-- Use tenant url as company url here, it should be in format of https://XXX.YYY.ZZZ/api/v2
      (here XXX should match with your subdomain) -->
  <string name="ujet_company_url">YOUR_COMPANY_URL</string>
</resources>

Create a Firebase project or, if you already have one, register this app. Download the google-service.json file and put it in your project in the following directory: example/android/app/.

Register the module

To register the module, open MainActivity.kt and initialize UJETModule, as in the following code sample:

class MainActivity : FlutterActivity() {
    override fun configureFlutterEngine(@NonNull flutterEngine: FlutterEngine) {
        super.configureFlutterEngine(flutterEngine)

        //Register and Initialize UJETModule
        UJETModule.init(flutterEngine.dartExecutor.binaryMessenger, applicationContext)
    }
}

Set up Android push notifications

Follow these steps if you want to integrate push notifications natively. Be sure that you have copied and pasted the firebase directory into your android project as directed in Integrate the SDK into an Android app.

To set up Android push notifications, follow these steps:

Add a firebase dependency for push notifications in your app-level build.gradle file, as in the following code sample:

dependencies {
  implementation platform("com.google.firebase:firebase-bom:32.8.0")
  implementation 'com.google.firebase:firebase-messaging'
}

Update AndroidManifest.xml, as in the following code sample:

<application>
  <service
    android:name=".firebase.MyFirebaseMessagingService"
    android:exported="false">
    <intent-filter>
      <action android:name="com.google.firebase.MESSAGING_EVENT" />
    </intent-filter>
  </service>
</application>

Add a google-services plugin at the root level of your project in build.gradle, as in the following code sample:
```
plugins {
  id 'com.google.gms.google-services' version '4.3.8' apply false
}
```

Add a google-services plugin at the app level of your project in build.gradle, as in the following code sample:

plugins {
  id "com.android.application"
  id "kotlin-android"
  id "dev.flutter.flutter-gradle-plugin"
  id 'com.google.gms.google-services'  // google-services plugin
}

Create MyFirebaseMessagingService that implements FirebaseMessagingService, as in the following code sample:

class MyFirebaseMessagingService: FirebaseMessagingService() {
      private var firebaseTokenManager: FirebaseTokenManager? = null

      override fun onCreate() {
          super.onCreate()
          firebaseTokenManager = FirebaseTokenManager(this)
      }

      override fun onNewToken(token: String) {
          firebaseTokenManager?.updateToken(token)
      }

      override fun onMessageReceived(message: RemoteMessage) {
          if (Ujet.canHandlePush(message.data)) {
              Log.d("Firebase", "Handle the push message by UJET")
          } else {
              // Handle your notifications
          }
      }
  }

Create FirebaseTokenManager, as in the following code sample:

  class FirebaseTokenManager(context: Context) {
      private val sharedPreferences = context.getSharedPreferences("${context.packageName}_preferences", Context.MODE_PRIVATE)
      private var token: String? = null

      fun getToken(): String? {
          token = sharedPreferences.getString("firebaseToken", null)
          if (token == null) {
              FirebaseMessaging.getInstance().token.addOnCompleteListener { task: Task<String?> ->
                  if (!task.isSuccessful || task.result == null) {
                      return@addOnCompleteListener
                  }
                  token = task.result
                  updateToken(token)
              }
          }
          return token
      }

      fun updateToken(token: String?) {
          sharedPreferences
              .edit()
              .putString("firebaseToken", token)
              .apply()
      }
  }