Topic preferences

The Batch Android SDK allows you to:

• Add or remove topic preferences from a user profile (the profile is created automatically if it doesn’t already exist).
• Partially update topic preferences within a user profile.

Requires SDK 3.3+

Here’s how to update topic preferences:

Kotlin

Batch.Profile.editor().apply {
  setTopicPreferences(listOf("technology", "finance")) // Null to erase.
  // Alternatively, partially update them with:
  addToTopicPreferences(listOf("investing"))
  removeFromTopicPreferences(listOf("travel"))
  save()
}

Java

Batch.Profile.editor()
  .setTopicPreferences(listOf("topic1", "topic2")) // Null to erase.
  // Alternatively, partially update them with:
  .addToTopicPreferences(listOf("topic3"))
  .removeFromTopicPreferences(listOf("topic4"))
  .save()
}

Note: Topics must be a valid List of String not longer than 25 items. String should be made of letters, numbers or underscores ([a-z0-9_]) and can't be longer than 300 characters.

Topics are deduplicated and follows a last-wins rule: if a value already exists in the array, it is moved to the end. Size limits are enforced after deduplication.