mit-app-inventor
MapLongPress
About this app
The MapLongPress app demonstrates using Map1.LongPressAtPoint to add latitude and longitude values to TinyDB1 each time the map is long-pressed.
Further functionality can be added after the locations are collected — for example, as shown in this tutorial video.
Code
Screen1.Initializeinvokes theresetprocedure, which simply resetsMap1center and zoom level, setsTinyDB1.Namespace, and logs all current location entries inTinyDB1.- The
log_dbprocedure usesNotifier1.LogInfoto log all location entries inTinyDB1. Button1.Clickclears (and logs) all location entries inTinyDB1.
Designer
All components retain their default properties, — except Width and Height set to Fill parent... where necessary to center UX components and Button text(s) changed from their defaults(s). The initial Map1 center is 41.96°, -71.20°.
