phone-book | A simple API REST for experiencing testing frameworks | REST library

1. one issue that can be either a bad parameter name, or an actual bug is that your selection is requesting a RAW_CONTACT_ID and supplying a parameter called contactId, I'm not sure what is stored in contactId but there's a big difference between a rawContactId and a contactId, so if that's indeed a contactId your operations will not find anything to update (or even worse, update the wrong contact).
2. The second issue is that your two loops (over userInfoMobileNos and userInfoGmails) keep updating (overriding) the same Data row, so eventually you should end up with just the last value in the contact details. You're also not checking if there's a Data row in the contact details that fit your selection, if there's not, there will be no row to update, and therefore the code will simply do nothing.
3. Third issue, but it may be intentional, not sure how you expect your app to work, is that you assume the info item type, i.e. you only update a phone if it's TYPE_MOBILE, and you only update the email if it's TYPE_WORK, what if there are other phones and emails stored for that contact? your code will simply keep those untouched, not sure if that intentional or not.

To fix issue one, just make sure the value in contactId is a RawContactId and change the name of the param. For the second issue, you should instead do a delete-and-insert, see code below. For the third issue, you'll need to change the selection code (paramsMobile) to remove it's assumption of label.

Here's suggested code:

HTML

In the codes of your link, they use "permission" as a data.

So I think they do a mistake. They don't want to have a pipe here but a boolean data from the back.

So it might be

(Their github link is dead so no possible way to have a clean code)

You can have a ListView that builds a Text widget for each value.

dont need regex like this