Sorry, but this is not possible.
Even if that were the case, consider how easy it is to abuse such features with malware . You can listen to intentions directed at you and those that are broadcast, but the launch of applications should not be a broadcast event.
What you can do is replace the launcher . If the user agrees to this.
You can also hack crawls by reading the logs of a magazine. For example, give your application permission android.permission.READ_LOGS and analyze the logs to determine the application that launched it. This is just an idea, however ... it looks like something you would not want to rely on.