如何在Android应用中存储Google地图标记数据？

Question

I have an activity that lets the user mark their route. I need to store the route as soon as the user is done with it. I will need to add a save button which allows the user to name the google map file and retrieve it later on the mobile.

How can i store the lat/lon of the markers in a file and then retrieve and plot it on the map, when the user opens the saved file.

Answer 1

You can use SnappyDB

SnappyDB is a key-value database for Android it's an alternative for SQLite if you want to use a NoSQL approach.

It allows you to store and get primitive types, but also a Serializable object or array in a type-safe way.

        try {
            DB snappydb = DBFactory.open(getActivity()); //create or open an existing databse using the default name

//Saving List of LatLng
            ArrayList<LatLng> listOfLatLng = new ArrayList<LatLng>();
            snappydb.put("LATLNG", listOfLatLng);


//Retrieving List of LatLngs
            ArrayList<LatLng> listOfLatLngNew = snappydb.get("LATLNG",ArrayList.class);


            snappydb.close();

        } catch (SnappydbException e) {
            e.printStackTrace();
        }

Installation

dependencies {
    compile 'com.snappydb:snappydb-lib:0.5.2'
    compile 'com.esotericsoftware.kryo:kryo:2.24.0'
}

Reference Link