Send your first message
Sendbird UIKit for Android is a set of prebuilt UI components that allows you to easily craft an in-app chat with all the essential messaging features. Our development kit includes light and dark themes, text fonts, colors and more. You can customize these components to create an interactive messaging interface unique to your brand identity.
Sendbird UIKit supports both open channels and group channels. Follow the guide below to start sending a message from scratch using
Note: To build an Android chat app with UIKit, see our Android UIKit tutorial. To learn how to customize in-app chat on Android, see this tutorial.
The minimum requirements for UIKit for Android are:
Android 4.1 (API level 16) or higher
Support androidx only
Gradle 4.0.1 or higher
Sendbird Chat SDK for Android 3.1.1 and later
Before you start
Before installing Sendbird Chat SDK, you need to create a Sendbird application on the Sendbird Dashboard, which comprises everything required in a chat service including users, messages, and channels. You will need the
App ID of your Sendbird application when initializing the Chat SDK.
Note: Each Sendbird application can be integrated with a single client app. Within the same application, users can communicate with each other across all platforms, whether they are on mobile devices or on the web.
You can start building a modern messaging experience in your app by installing Sendbird UIKit. This developer kit is an add-on feature to Sendbird Chat SDK so installing it will also install the core Chat SDK.
Step 1 Create a project
To get started, open
Android Studio and create a new project for UIKit in the Project window as follows:
- Click Start a new Android Studio project in the Welcome to Android Studio window.
- Select Empty Activity in the Select a Project Template window and click Next.
- Enter your project name in the Name field in the Configure your project window.
- Select your language as either Java or Kotlin from the Language drop-down menu.
- Make sure Use legacy android.support.libraries is unchecked.
- Select minimum API level as 16 or higher.
Step 2 Install UIKit
You can install UIKit for Android through
If using Gradle 6.7 or lower, add the following code to your root
Note: Make sure the above code block isn't added to your module
If using Gradle 6.8 or higher, add the following to your
Note: To learn more about updates to Gradle, see this release note.
Next, for all Gradle versions, open the
build.gradle file at the application level. For both
Kotlin, add the following code block and dependencies:
Before saving the
build.gradle file, check if you’ve enabled
dataBinding. Then, click the Sync button to apply all changes.
Note: UIKit SDK versions
2.1.1or lower can be downloaded from JCenter until February 1, 2022. SDK versions higher than
2.1.1will be available on Sendbird's remote repository.
Step 3 Initialize SendbirdUIKit instance
To integrate and run Sendbird UIKit in your app, you need to initialize it first. You can initialize
SendBirdUIKit instance by passing the
SendBirdUIKitAdapter instance as an argument to a parameter in the
SendBirdUIKit.init() method. The
SendBirdUIKit.init() must be called once in the
onCreate() method of your app’s
Note: Local caching has now been added so that the client app can locally cache and retrieve channel and message data. The addition of this functionality requires the database to be reset and migrated. As a result of DB migration in the server, the initialization process of the
SendBirdUIKitinstance is now asynchronous and requires you to receive a callback function before you can move onto the next step. If the database fails to migrate, the
onInitFailed()method is called. If the database successfully migrates, the
onInitSucceed()method is called and you can proceed to the next step. Refer to the updated code below.
Step 4 Add BaseApplication
Add the created
Step 5 Display channel list
ChannelListActivity is the starting point for launching UIKit in your application. By implementing the code below, you will see a complete list of group channels that you're a member of.
Step 6 Send your first message
You can now run the application on an emulator or a plugged-in device. To send a message, you must first create a group channel by clicking on the icon in the top-right corner. Then, you can select users you wish to invite as members to your channel. Once the channel has been created, type your first message and press send.
You've successfully sent your first message with Sendbird.
Note: To customize your user list instead of retrieving the entire list from Sendbird server, set the custom user list query handler.
Methods provided by Sendbird UIKit for Android automatically process data using our Chat SDK. Using
Fragments, chat can easily be added to your Android client app using the components below.
This is the most important class in the UIKit. These interfaces can be used to initialize information and call all
List of methods
Sets a theme as the default theme.
Retrieves the default theme.
Determines whether the theme mode is
Retrieves the current registered
Imports your custom user list. If this isn’t implemented, the list of all users in the Sendbird server are displayed.
Connects to Sendbird server and updates your profile.
Disconnects from Sendbird server.
Updates user information for profile display.
Sets the handler for common custom.
Returns the custom params handler.
Determines whether the user profile is used.
Returns the set value regarding the use of user profile.
Determines whether to compress the image when sending an image file message. This method only applies to the following image types:
Retrieves the set value of
Sets the value of the compression rate to apply to the image. Acceptable values are 0 to 100, inclusive. (Default: 100)
Retrieves the set value of the compression rate to apply to the image.
Sets the new
Retrieves the resized
Listed below are the methods of the
Retrieves the information of the current user
Retrieves the access token of the current user, which is required to provide in the
Listed below are the methods of the
Retrieves the ID of the current user that has been registered to Sendbird server.
Retrieves the current user's nickname. If the nickname hasn’t been set,
Retrieves the URL of the current user's profile image.
The UIKit also provides the following components. All components can be called while fragments and activities are running on the Android platform.
List of components
Shows all channels a user has joined.
Shows the current channel a user has joined. From this component, users can send or receive messages.
Shows all the users of your client app so you can create a channel. Users can be selected from this component to begin chatting.
Shows all the users of your client app from the current channel so you can invite other users to join.
Changes the channel information.
Shows the list of members in the current channel.
Shows the list of members in the current channel whom you can promote as an operator.
Shows the list of members who are banned from the current channel.
Shows the list of moderation options for the current channel.
Shows the list of members who are muted in the current channel.
Shows the list of members who are appointed as an operator in the current channel.