Bring application back to front

Question

My application is a timer with alarm type app. When the timer expires i would like to bring the app\'s main activity back into view, if the user has navigated away, but the app

Answer 1

See http://developer.android.com/guide/appendix/faq/framework.html#4:

How can I check if an Activity is already running before starting it?

The general mechanism to start a new activity if its not running— or to bring the activity stack to the front if is already running in the background— is the to use the NEW_TASK_LAUNCH flag in the startActivity() call.