I need to make my application perform multiple directions for different functions, these functions, each different application has, so I need some activities to open the default application chosen by the user to perform a function.
The activities I need are:
Open a translator and translate a text
Make a call to a specific number
Add a contact of a specific number
Open a message application to send a message to a specific number.
These are the activities I need, I already researched Google but found nothing about it, so I would like you to help me. If there is some page listing all android activities and their functions that any of you know can pass me? I also did not find anything about it.