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Commit b60386d

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caller9caller9
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Merge pull request #472 from googlesamples/yang-mapview
mapview
2 parents b37af95 + 80e6432 commit b60386d

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+119
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‎android/canonical/app/build.gradle

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@@ -39,6 +39,7 @@ dependencies {
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implementation 'com.google.android.material:material:1.1.0'
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implementation 'com.google.android.gms:play-services-maps:17.0.0'
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implementation 'com.google.android.gms:play-services-location:17.0.0'
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implementation 'com.google.android.libraries.places:places:2.3.0'
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implementation "android.arch.lifecycle:extensions:1.1.1"
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implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.2.0'
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kapt 'com.android.databinding:compiler:3.1.4'

‎android/canonical/app/src/main/java/com/google/samples/quickstart/canonical/MapsFragment.kt

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@@ -7,28 +7,49 @@ import android.location.Location
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import androidx.fragment.app.Fragment
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import android.os.Bundle
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import android.util.Log
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import android.view.LayoutInflater
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import android.view.View
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import android.view.ViewGroup
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import android.widget.LinearLayout
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import android.widget.Toast
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import androidx.core.content.ContextCompat.checkSelfPermission
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import com.google.android.gms.location.FusedLocationProviderClient
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import com.google.android.gms.location.LocationServices
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import com.google.android.gms.common.api.Status
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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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import com.google.android.libraries.places.api.Places
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import com.google.android.libraries.places.api.model.Place
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import com.google.android.libraries.places.api.model.RectangularBounds
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import com.google.android.libraries.places.api.net.PlacesClient
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import com.google.android.libraries.places.widget.AutocompleteSupportFragment
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import com.google.android.libraries.places.widget.listener.PlaceSelectionListener
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class MapsFragment : Fragment() {
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private lateinit var map: GoogleMap
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private lateinit var fusedLocationClient: FusedLocationProviderClient
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private lateinit var lastLocation: Location
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private lateinit var placesClient : PlacesClient
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private lateinit var autocompleteLayout : LinearLayout
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private lateinit var targetLatLng : LatLng
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private lateinit var targetName : String
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private lateinit var autocompleteFragment : AutocompleteSupportFragment
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private var currentLatLng : LatLng? = null
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private var targetMarker : Marker? = null
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companion object {
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private const val LOCATION_PERMISSION_REQUEST_CODE = 1
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private const val ZOOM_VALUE = 14f
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private const val PADDING_RATIO = 1.5
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private const val FRAGMENT_TAG = "Mapfragment"
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}
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override fun onRequestPermissionsResult(requestCode: Int,
@@ -51,27 +72,71 @@ class MapsFragment : Fragment() {
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}
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}
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private fun initPlaces() {
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context?.let { Places.initialize(it, getString(R.string.google_maps_key)) }
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placesClient = context?.let { Places.createClient(it) }!!
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}
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private fun setPlacesSearchBias() {
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// Search nearby result
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currentLatLng?.let {
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autocompleteFragment.setLocationBias(
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RectangularBounds.newInstance(
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LatLng(currentLatLng!!.latitude - 1, currentLatLng!!.longitude - 1),
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LatLng(currentLatLng!!.latitude + 1, currentLatLng!!.longitude + 1)
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))
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}
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}
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private fun setUpMap() {
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if (checkSelfPermission(context as Activity,
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Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
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requestPermissions(arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), LOCATION_PERMISSION_REQUEST_CODE)
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return
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}
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// Add and adjust the position of MyLocation button.
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map.isMyLocationEnabled = true
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map.setPadding(0, (PADDING_RATIO * autocompleteLayout.height).toInt(),0,0)
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fusedLocationClient.lastLocation.addOnSuccessListener(this.activity as Activity) { location ->
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// Got last known location. In some rare situations this can be null.
65-
if (location != null) {
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location?.let {
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lastLocation = location
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val currentLatLng = LatLng(location.latitude, location.longitude)
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map.animateCamera(CameraUpdateFactory.newLatLngZoom(currentLatLng, 12f))
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map.addMarker(MarkerOptions().position(currentLatLng).title("My location"))
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map.moveCamera(CameraUpdateFactory.newLatLng(currentLatLng))
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currentLatLng = LatLng(location.latitude, location.longitude)
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map.animateCamera(CameraUpdateFactory.newLatLngZoom(
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currentLatLng,
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ZOOM_VALUE
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))
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map.addMarker(MarkerOptions()
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.position(currentLatLng!!)
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.title(getString(R.string.my_location_title)))
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map.moveCamera(CameraUpdateFactory.newLatLngZoom(
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currentLatLng,
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ZOOM_VALUE
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))
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setPlacesSearchBias()
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} ?: run{
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Toast.makeText(context, getString(R.string.cannot_access_location), Toast.LENGTH_SHORT)
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}
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}
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}
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private fun setUpAutocomplete(autocompleteFragment : AutocompleteSupportFragment, mapFragment : SupportMapFragment) {
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autocompleteFragment.setPlaceFields(listOf(Place.Field.ID, Place.Field.NAME, Place.Field.LAT_LNG))
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autocompleteFragment.setOnPlaceSelectedListener(object : PlaceSelectionListener {
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override fun onPlaceSelected(place: Place) {
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targetLatLng = place.latLng!!
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targetName = place.name.toString()
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mapFragment.getMapAsync(searchPlacesCallback)
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}
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override fun onError(status: Status) {
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Log.e(FRAGMENT_TAG, "An error occurred: $status")
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}
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})
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}
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private val mapReadyCallback = OnMapReadyCallback { googleMap ->
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/**
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setUpMap()
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}
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private val searchPlacesCallback = OnMapReadyCallback { map ->
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targetMarker?.remove()
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map.moveCamera(CameraUpdateFactory.newLatLngZoom(
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targetLatLng,
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ZOOM_VALUE
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))
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targetMarker = map.addMarker(MarkerOptions()
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.position(targetLatLng)
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.title(targetName)
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.draggable(true))
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}
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override fun onCreateView(
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inflater: LayoutInflater,
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container: ViewGroup?,
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override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
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super.onViewCreated(view, savedInstanceState)
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val mapFragment = childFragmentManager.findFragmentById(R.id.map) as SupportMapFragment?
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mapFragment?.getMapAsync(mapReadyCallback)
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initPlaces()
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val mapFragment = childFragmentManager.findFragmentById(R.id.map_fragment) as SupportMapFragment
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autocompleteFragment = childFragmentManager.findFragmentById(R.id.autocomplete_fragment) as AutocompleteSupportFragment
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autocompleteLayout = view.findViewById(R.id.autocomplete_linearLayout)
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mapFragment.getMapAsync(mapReadyCallback)
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setUpAutocomplete(autocompleteFragment, mapFragment)
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}
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}

‎android/canonical/app/src/main/res/layout/activity_main.xml

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@@ -24,5 +24,4 @@
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</FrameLayout>
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</androidx.constraintlayout.widget.ConstraintLayout>

‎android/canonical/app/src/main/res/layout/fragment_maps.xml

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@@ -1,8 +1,26 @@
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<?xml version="1.0" encoding="utf-8"?>
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<fragment xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:id="@+id/map"
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android:name="com.google.android.gms.maps.SupportMapFragment"
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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
7-
android:layout_height="match_parent"
8-
tools:context=".MapsFragment" />
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android:layout_height="match_parent">
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<fragment
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:id="@+id/map_fragment"
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android:name="com.google.android.gms.maps.SupportMapFragment" />
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<LinearLayout
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android:orientation="vertical"
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android:layout_margin="20dp"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:id="@+id/autocomplete_linearLayout"
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android:background="@android:color/white">
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<fragment
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:id="@+id/autocomplete_fragment"
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android:name="com.google.android.libraries.places.widget.AutocompleteSupportFragment" />
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</LinearLayout>
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</RelativeLayout>

‎android/canonical/app/src/main/res/values/strings.xml

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<string name="start">Start Timer</string>
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<string name="working">Started</string>
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<string name="stopped">Stopped</string>
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<string name="my_location_title">My location</string>
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<string name="cannot_access_location">Cannot access location now. Please Try later</string>
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</resources>

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