【實用生產應用app】Load Map Markers from CSV File|最夯免費app-gigacircle

This app was born from the need to be able to place markers on a map using a collection of Lat/Lon coordinates stored in a comma delimited csv file and have the map and marker information viewable online and offline.

Mapping is provided by way of the Open Street Map and OSMDroid projects so all credit to them for the excellent work they do. Map tiles are loaded when the application is used and stored in the osmdroid folder on the sdcard of the device and as such any that have been viewed at whatever zoom level will also be available offline.

Operation of the app and location of the markers is based the provision of a comma delimited csv file within which there are 4 columns being:

Title - This is the type of asset being marked on the map. On the example shown this is various types of water source. Up to 12 different types can be defined and each will be marked on the map with a different coloured marker. The colour of the marker assigned to each item can be controlled to some degree by the order in which the types appear in the csv file.

Description - The description containing the details of the asset listed. This will be displayed when the marker for the item is touched on the screen.

Latitude and Longitude - Self explanatory. These items will be displayed on the screen when a long press is used on a marker.

Before the application can run the csv file must be created. At this stage the file must be named "MapMarkers.csv" and must reside in the /sdcard/Android/Data folder of the device.