Android Paging Sample

The sample shows how to implement a simple activity feed. The feed should implement fetch as you scroll with a page size of two weeks at a time. If the app doesn't receive any events within that time period it should fetch the next period until we get some events or we reach the oldest activity.

Implementation

• The app relies on RxJava. For Coroutines implementation, please refer to Coroutines feature branch
• Multi-Module app relying on a network module (Retrofit) and a local storage module (Room)
• Jetpack Compose is used to display the list of items.
• A simple mocked API is available to get the list of activities and information about them.

Endpoint

http://qapital-ios-testtask.herokuapp.com

Fetch activities:

http://qapital-ios-testtask.herokuapp.com/activities?from=<date>&to=<date>

Where the two dates should be of the format YYYY-MM-DDThh:mm:ss+00:00. This will fetch all activities that happened between from and to. The return format is a JSON object that holds the list of activities under the key "activities" and a date indicating what is the earliest date there is an activity for under the key "oldest". The activities contain a message that has a number of words marked with <strong> that should be emphasized. The amount is in dollars. The user id can be used to fetch a user from the users endpoint.

{
	"oldest": "2016-05-23T00:00:00+00:00",
	"activities": [
		{
			"message": "<strong>You</strong> didn't resist a guilty pleasure at <strong>Starbucks</strong>.",
			"amount": 2.5,
			"userId": 2,
			"timestamp": "2016-10-04T00:00:00+00:00"
		},
		{
			"message": "<strong>You</strong> made a roundup.",
			"amount": 0.32,
			"userId": 3,
			"timestamp": "2016-10-03T00:00:00+00:00"
		}
	]
}

Fetch a user:

http://qapital-ios-testtask.herokuapp.com/users/<id>

Returns the user with the specified id

[
	{
		"userId": 1,
		"displayName": "Mikael",
		"avatarUrl": "http://qapital-ios-testtask.herokuapp.com/avatars/mikael.jpg"
	}
]