how to start Android Service/activity/dialog based on GPS Location and other events

how to start an android service/activity/di开发者_C百科alog based on 1- user inserts new SIM card 2- based on GPS location stored in SQLite database

regards

---

1 - Here is the answer Event when sim card is changed

2 - You can listen location changes (LocationListener), get coordinates and check if they are in your db.