Setup

Skip the create new app step. Your existing v2 app can be migrated to v3. > > Follow steps mentioned in Add the CometChat dependency section below to upgrade to latest version of v3

Get your Application Keys

Signup for CometChat and then:

1. Create a new app
2. Head over to the API Keys section and note the Auth Key, App ID & Region

Minimum Requirement

• Android API Level 21
• Android API level 24 (in case you are using the calls SDKS)
• Androidx Compatibility

Add the CometChat Dependency

Gradle

First, add the repository URL to the project level build.gradle file in the repositories block under the allprojects section:

Groovy

allprojects {
  repositories {
    maven {
      url "https://dl.cloudsmith.io/public/cometchat/cometchat/maven/"
    }
  }
}

Then, add CometChat to the app level build.gradle file in the dependencies section.

Groovy

dependencies {
  implementation 'com.cometchat:chat-sdk-android:4.0.9'
}

Important

In case you plan to use the calling feature, please add the Calling dependency implementation 'com.cometchat:calls-sdk-android:4.0.6' in the dependencies section of the app-level build.gradle file.

Finally, add the below lines android section of the app level gradle file.

Groovy

android {
  compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
  }
}

Initialize CometChat

The init() method initialises the settings required for CometChat. The init() method takes the below parameters:

1. appID - You CometChat App ID
2. appSettings - An object of the AppSettings class can be created using the AppSettingsBuilder class. The region field is mandatory and can be set using the setRegion() method.

The AppSettings class allows you to configure three settings:

• Region: The region where you app was created.
• Presence Subscription : Represents the subscription type for user presence (real-time online/offline status)
• autoEstablishSocketConnection(boolean value): This property takes a boolean value which when set to true informs the SDK to manage the web-socket connection internally. If set to false, it informs the SDK that the web-socket connection will be managed manually. The default value for this parameter is true. For more information on this, please check the Managing Web-Socket connections manually section. The default value for this property is true.
• overrideAdminHost(adminHost: string): This method takes the admin URL as input and uses this admin URL instead of the default admin URL. This can be used in case of dedicated deployment of CometChat.
• overrideClientHost(clientHost: string): This method takes the client URL as input and uses this client URL instead of the default client URL. This can be used in case of dedicated deployment of CometChat.

We suggest you call the init() method on app startup.

Java

private String appID = "APP_ID"; // Replace with your App ID
private String region = "REGION"; // Replace with your App Region ("eu" or "us")

AppSettings appSettings= new AppSettings.AppSettingsBuilder()
  .subscribePresenceForAllUsers()
  .setRegion(region)
  .autoEstablishSocketConnection(true)
  .build();

CometChat.init(this, appID,appSettings, new CometChat.CallbackListener<String>() {
  @Override
  public void onSuccess(String successMessage) {
    Log.d(TAG, "Initialization completed successfully");
  }

  @Override
  public void onError(CometChatException e) {
    Log.d(TAG, "Initialization failed with exception: " + e.getMessage());
  }
});

Kotlin

val appID:String="APP_ID"  // Replace with your App ID
val region:String="REGION"  // Replace with your App Region ("eu" or "us")

AppSettings appSetting = AppSettings.AppSettingsBuilder()
  .setRegion(region)
  .subscribePresenceForAllUsers()
  .autoEstablishSocketConnection(true)
  .build();

CometChat.init(this,appID,appSetting, object : CometChat.CallbackListener<String>() {
  override fun onSuccess(p0: String?) {
    Log.d(TAG, "Initialization completed successfully")
  }

  override fun onError(p0: CometChatException?) {
      Log.d(TAG, "Initialization failed with exception: " + p0?.message)
    }
  }
)

Parameter	Description
this	Android context for your application
appID	CometChat App ID
appSetting	An object of the AppSettings class.

Auto Mode Connection

info

Know more about auto mode connection click here

App State	Behaviour
App in foreground	Connected with WebSocket
App in background	Immediately disconnected with WebSocket

Manual Mode Connection

info

Know more about manual mode connection click here

App State	Behaviour
App in foreground	Call CometChat.connect() to create the WebSocket connection
App in background	Disconnect the WebSocket connection if no ping is received within 30 seconds after the app goes in the background.