LoginActivity.java - Init CometChat and Login to CometChat - Voice and Video Chat App - Android App

LoginActivity.java

...
public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
  ...  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    ...
    this.initCometChat();
  }
  ...
  private void initCometChat() {
    AppSettings appSettings=new AppSettings.AppSettingsBuilder().subscribePresenceForAllUsers().setRegion(Constants.COMETCHAT_REGION).build();

    CometChat.init(this, Constants.COMETCHAT_APP_ID, appSettings, new CometChat.CallbackListener<String>() {
      @Override
      public void onSuccess(String successMessage) {
        UIKitSettings.setAuthKey(Constants.COMETCHAT_AUTH_KEY);
        CometChat.setSource("uikit","android","java");
        Toast.makeText(LoginActivity.this, "Initialized CometChat", Toast.LENGTH_SHORT).show();
      }
      @Override
      public void onError(CometChatException e) {
        Toast.makeText(LoginActivity.this, "Failure to initialize CometChat", Toast.LENGTH_SHORT).show();
      }
    });
  }
  ...
  private void loginCometChat() {
    if (this.loggedInUser != null && this.loggedInUser.getUid() != null) {
      CometChat.login(this.loggedInUser.getUid(), Constants.COMETCHAT_AUTH_KEY, new CometChat.CallbackListener<User>() {

        @Override
        public void onSuccess(User user) {
          Toast.makeText(LoginActivity.this, "Login Successfully", Toast.LENGTH_SHORT).show();
          goToCometChatUI();
        }

        @Override
        public void onError(CometChatException e) {
        }
      });
    }
  }
  ...
}