Required For Setup
- A OneSignal Account, if you do not already have one
- Your OneSignal App ID, available in Keys & IDs
- A Google/Firebase Server API Key
- A device or emulator that has Google Play services installed and updated on it
- Device will not subscribe or receive push notifications with out this
- Android Studio 2.3.3 or newer
- If you're using Eclipse, follow this guide instead
1. Gradle Setup
1.1 Open your app/build.gradle (Module: app) file, add the following to the very top.
buildscript {
repositories {
maven { url 'https://plugins.gradle.org/m2/'}
}
dependencies {
classpath 'gradle.plugin.com.onesignal:onesignal-gradle-plugin:[0.11.0, 0.99.99]'
}
}
apply plugin: 'com.onesignal.androidsdk.onesignal-gradle-plugin'
repositories {
maven { url 'https://maven.google.com' }
}1.2 Add the following to your dependencies section.
dependencies {
implementation 'com.onesignal:OneSignal:[3.9.1, 3.99.99]'
}1.3 Add the following in your android > defaultConfig section of the gradle file.
- Update
PUT YOUR ONESIGNAL APP ID HEREwith your OneSignal app id
android {
defaultConfig {
manifestPlaceholders = [
onesignal_app_id: 'PUT YOUR ONESIGNAL APP ID HERE',
// Project number pulled from dashboard, local value is ignored.
onesignal_google_project_number: 'REMOTE'
]
}
}Sync Gradle
Make sure to press "Sync Now" on the banner that pops up after saving!
2. Add Required Code
2.1 Add the following to the onCreate method in your Application class.
- Don't have an Application class? Follow our creation guide!
import com.onesignal.OneSignal;
public class YourAppClass extends Application {
public void onCreate() {
super.onCreate();
// OneSignal Initialization
OneSignal.startInit(this)
.inFocusDisplaying(OneSignal.OSInFocusDisplayOption.Notification)
.unsubscribeWhenNotificationsAreDisabled(true)
.init();
}
}import com.onesignal.OneSignal
class YourAppClass : Application() {
override fun onCreate() {
super.onCreate()
// OneSignal Initialization
OneSignal.startInit(this)
.inFocusDisplaying(OneSignal.OSInFocusDisplayOption.Notification)
.unsubscribeWhenNotificationsAreDisabled(true)
.init()
}
}3. Create a custom default notification icon
3.1 By default, notifications will be shown with a bell icon in the notification shade. Follow the Customize Notification Icons guide to create a your own small notification icon for your app.
Troubleshooting
If run into any issues please see our Android troubleshooting guide, or our general Troubleshooting section.
- For a full example, see our example projects on Github.
4. Add Email
Next, if you collect emails from users, you can set a user's email with the setEmail method. This enables OneSignal Email Messaging, which allows you to send emails in addition to push.
OneSignal.setEmail("example@domain.com");If you have a backend server, we strongly recommend using Identity Verification with your users. Your backend can generate an email authentication token and send it to your app or website. The following code also includes callbacks:
String email = "example@domain.com";
String emailAuthHash = "..."; // Email auth hash generated from your server
OneSignal.setEmail(email, emailAuthHash, new OneSignal.EmailUpdateHandler() {
public void onSuccess() {
// Email successfully synced with OneSignal
}
public void onFailure(OneSignal.EmailUpdateError error) {
// Error syncing email, check error.getType() and error.getMessage() for details
}
});Additional email methods are available in the Android Native SDK
You're Done!
Next up: Send your first push notification via the OneSignal Dashboard
Notification Features
To configure notifications features, go to Features Setup.
Notification Handlers
NotificationOpenedHandler - This will be called when a notification is tapped on.
See our setNotificationOpenedHandler documentation to add one.
NotificationReceivedHandler - This will be called when a notification is received.
See our setNotificationReceivedHandler documentation to add one.
NotificationExtenderService - This service can be setup to receive notifications no matter if your app is running or not. It can be used override how notifications are shown in the notification shade or to process data silently without showing a notification. See the Background Data and Notification Overriding section to set this up.