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85 lines
2.5 KiB
Markdown
85 lines
2.5 KiB
Markdown
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# Maps Activity
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[Google Maps Docs](https://developers.google.com/maps/documentation/android-sdk/intro)
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Activity sould be **Google Maps Activity**.
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In `google_maps_api.xml`:
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```xml
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<resources>
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<string name="google_maps_key" templateMergeStartegy="preserve", translateble="false">API_KEY</string>
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</resources>
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```
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## Activity Layout (xml)
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```xml
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<!-- a fragment to contain the map -->
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<fragment xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:map="http://schemas.android.com/apk/res-auto"
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xmlns:tools="http://schemas.android.com/tools"
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android:id="@+id/<fragment_id>"
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android:name="com.google.android.gms.maps.SupportMapFragment"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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tools:context=".<Activity>" />
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```
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## Activity Class (kotlin)
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```kotlin
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import androidx.appcompat.app.AppCompatActivity
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import android.os.Bundle
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import com.google.android.gms.maps.CameraUpdateFactory
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import com.google.android.gms.maps.GoogleMap
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import com.google.android.gms.maps.OnMapReadyCallback
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import com.google.android.gms.maps.SupportMapFragment
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import com.google.android.gms.maps.model.LatLng
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import com.google.android.gms.maps.model.Marker
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import com.google.android.gms.maps.model.MarkerOptions
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class MapsActivity : AppCompatActivity(), OnMapReadyCallback,
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GoogleMap.OnInfoWindowClickListener,
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GoogleMap.OnMarkerClickListener,
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GoogleMap.OnCameraIdleListener{
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private lateinit var mMap: GoogleMap // declare but not valorize
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.<activity_xml>)
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// add the map to a fragment
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val mapFragment = supportFragmentManager.findFragmentById(R.id.<fragment_id>) as SupportMapFragment
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mapFragment.getMapAsync(this)
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}
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override fun onMapReady(googleMap: GoogleMap) {
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mMap = googleMap
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mMap.setOnMarkerClickListener(this)
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mMap.setOnInfoWindowClickListener(this)
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// Add a marker and move the camera
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val location = LatLng(-34.0, 151.0) // set loaction with latitude and longitude
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mMap.addMarker(MarkerOptions().position(location).title("Marker in ...")) // ad the marker to the map with a name and position
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mMap.moveCamera(CameraUpdateFactory.newLatLng(location)) // move camera to the marker
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}
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override fun onInfoWindowClick(p0: Marker?) {
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}
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override fun onMarkerClick(p0: Marker?): Boolean {
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}
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override fun onCameraIdle() {
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}
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}
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```
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