[main function]
1. Display magnetic north azimuth (no permission required)
2. True North Azimuth Display
- Requires GPS permission
- Converts the current location to an address and displays it.
3. Show current location map
- If you select the current address, the current location is displayed on the map.
4. Use the camera (requires permission)
- You can check the direction of the actual building.
5. Others
- Displays the magnetic field strength.
- You can check the level with the water drop in the center of the compass.