Android scanning app , change flow of app , use api to access events ,

We currently have an android app , and all source code will be provided We need some changes to this app Currently the app is used to scan and validate tickets , We would like to change the flow of the app , Also currently event ID and Event date must be enetered manually so that the app can fetch sales data We would like to use API to fetch list of events so that user can just click the EVENT in order to fetch sales data These are very small changes WOULD IKE THIS WORK COMPLETED TODAY