List all currencies you get from the endpoint (one per row). Each row has an input where you can enter any amount of money. When you tap on a currency row it should slide to the top and it's input becomes the first responder. When you’re changing the amount the app must simultaneously update the corresponding value for other currencies.
This solution consist of 4 build variants:
- mock
- develop
- test
- production
Except mock build every build variant should have different base api url. Currently there is only one used for rest of them. It can be easily changed in Config.kt file.
I have decided to use different api call when it is different currency on the top of the list. I came across problem that api does not return very small values for currency rates.
For example api call https://hiring.revolut.codes/api/android/latest?base=IDR returns a lot of zero values.
Copyright 2020 Wojciech Kryg
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