Android user positioning (1)

User location is mainly used to obtain the user's location and track users' movements.

Key APIs:

Location manager is used to manage the user positioning service of Android. Location provider provides multiple positioning methods for developers to use.

Classification of positioning methods:

1. To use GPS satellites for positioning, you must gain the permission Android. Permission. access_fine_location in androidmanifest.

2. Network Positioning: positioning using the signal receiving tower and Wi-Fi intervention points requires the permission Android. Permission. access_fine_location or android. Permission. Access. coarse_location in androidmanifest.

// Follow these steps to obtain the current user location:

A. Known permissions in androidmanifest

B. Obtain the locationmanager object:

Locationmanager manager = (locationmanager) getsystemservice (context. location_service );

C. Select locationprovider

Call the requestlocationupdate method of the locationmanager object

D. Implement the locationlistener and overwrite its abstract method.