How Can I Communicate with another application?

Question

I'd like ask you if there's a way to send information or commands to other applications. For example: a person is typing a message to one, and after ten seconds my program adds (by using the command append("text").to(EditText); ) a string like "hello" in the EditText of the message.

I discovered that information can be shared between different apps through ContentProviders

Is there a way to accomplish this?

Answer 1

This is only possible when the developer of this particular app predicted such behavior. It could be done simply by broadcasting intents between apps, but this "another" app must have a suitable Broadcast Receiver to make a use of this intents. http://developer.android.com/guide/components/intents-filters.html

Answer 2

Or, you can fire up an intent on another app and bundle your Data into it and pass it through Intent object. Check out this link. I purposely haven't written a code. I think everyone should learn on their own. Remember,The developer site is the Bible for Android.