In Mapeo Mobile, observations can be shared to other apps using the OS's social sharing mechanism. Mapeo Mobile uses react-native-share to implement this feature instead of the built-in Share API, mostly because of the requirement to be able to share files (e.g. photos).

The implementation from Mapeo Mobile should basically be ported over.

• Implementation of sharing logic in Mapeo Mobile
• Implementation of share options passed into React Native Share
  • Note that this uses a fork of turndown due to a lack of native APIs support for the underlying dom implementation at the time. Context for this is to be able to render rich text markup that some apps (e.g. WhatsApp) support (more context). There's a good chance that we'll still need to rely on the fork, but could be worth quickly trying the original module to see if changes (either in the underlying dom implementation or React Native's JS runtime) have made it feasible to use directly.

The share content should be formatted as following (example below uses English but any translatable strings should be translated appropriately):

Mapeo Alert — \_\*CATEGORY_NAME\*\_
FORMATTED_TIMESTAMP
OBSERVATION_COORDINATES

Non-exhaustive list of apps that this sharing should work with at a minimum (the library takes care of most of this under the hood but for the sake of testing when implemented):

• WhatsApp
• Telegram
• Signal

Screenshots from Mapeo Mobile

1. Share button (bottom left of screen)

   

2. Pressing share button for observation without media attachments.

   • Note that title says Sharing text
   

3. Pressing share button for observation with media attachments

   • Note that title says Sharing image