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chore: Add LiteDemoActivity in Kotlin (#210)
Also apply following changes to Java version: * Refactor variables to remove Hungarian notation
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ApiDemos/kotlin/app/src/gms/java/com/example/kotlindemos/LiteDemoActivity.kt
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| // Copyright 2020 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| package com.example.kotlindemos | ||
|
|
||
| import android.graphics.Color | ||
| import android.os.Bundle | ||
| import android.view.View | ||
| import androidx.appcompat.app.AppCompatActivity | ||
| import com.example.kotlindemos.OnMapAndViewReadyListener.OnGlobalLayoutAndMapReadyListener | ||
| import com.google.android.gms.maps.CameraUpdateFactory | ||
| import com.google.android.gms.maps.GoogleMap | ||
| import com.google.android.gms.maps.SupportMapFragment | ||
| import com.google.android.gms.maps.model.* | ||
|
|
||
| /** | ||
| * This demo shows some features supported in lite mode. | ||
| * In particular it demonstrates the use of [com.google.android.gms.maps.model.Marker]s to | ||
| * launch the Google Maps Mobile application, [com.google.android.gms.maps.CameraUpdate]s | ||
| * and [com.google.android.gms.maps.model.Polygon]s. | ||
| */ | ||
| class LiteDemoActivity : AppCompatActivity(), OnGlobalLayoutAndMapReadyListener { | ||
| private lateinit var map: GoogleMap | ||
| override fun onCreate(savedInstanceState: Bundle?) { | ||
| super.onCreate(savedInstanceState) | ||
|
|
||
| // Set the layout | ||
| setContentView(R.layout.lite_demo) | ||
|
|
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| // Get the map and register for the ready callback | ||
| val mapFragment = supportFragmentManager.findFragmentById(R.id.map) as SupportMapFragment | ||
| OnMapAndViewReadyListener(mapFragment, this) | ||
| } | ||
|
|
||
| /** | ||
| * Move the camera to center on Darwin. | ||
| */ | ||
| fun showDarwin(v: View?) { | ||
| if (!::map.isInitialized) return | ||
|
|
||
| // Center camera on Adelaide marker | ||
| map.moveCamera(CameraUpdateFactory.newLatLngZoom(DARWIN, 10f)) | ||
| } | ||
|
|
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| /** | ||
| * Move the camera to center on Adelaide. | ||
| */ | ||
| fun showAdelaide(v: View?) { | ||
| if (!::map.isInitialized) return | ||
|
|
||
| // Center camera on Adelaide marker | ||
| map.moveCamera(CameraUpdateFactory.newLatLngZoom(ADELAIDE, 10f)) | ||
| } | ||
|
|
||
| /** | ||
| * Move the camera to show all of Australia. | ||
| * Construct a [com.google.android.gms.maps.model.LatLngBounds] from markers positions, | ||
| * then move the camera. | ||
| */ | ||
| fun showAustralia(v: View?) { | ||
| if (!::map.isInitialized) return | ||
|
|
||
| // Create bounds that include all locations of the map | ||
| val boundsBuilder = LatLngBounds.builder() | ||
| .include(PERTH) | ||
| .include(ADELAIDE) | ||
| .include(MELBOURNE) | ||
| .include(SYDNEY) | ||
| .include(DARWIN) | ||
| .include(BRISBANE) | ||
|
|
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| // Move camera to show all markers and locations | ||
| map.moveCamera(CameraUpdateFactory.newLatLngBounds(boundsBuilder.build(), 20)) | ||
| } | ||
|
|
||
| /** | ||
| * Called when the map is ready to add all markers and objects to the map. | ||
| */ | ||
| override fun onMapReady(googleMap: GoogleMap?) { | ||
| // return early if the map was not initialised properly | ||
| map = googleMap ?: return | ||
| addMarkers() | ||
| addPolyObjects() | ||
| showAustralia(null) | ||
| } | ||
|
|
||
| /** | ||
| * Add a Polyline and a Polygon to the map. | ||
| * The Polyline connects Melbourne, Adelaide and Perth. The Polygon is located in the Northern | ||
| * Territory (Australia). | ||
| */ | ||
| private fun addPolyObjects() { | ||
| map.addPolyline( | ||
| PolylineOptions() | ||
| .add( | ||
| MELBOURNE, | ||
| ADELAIDE, | ||
| PERTH | ||
| ) | ||
| .color(Color.GREEN) | ||
| .width(5f) | ||
| ) | ||
| map.addPolygon( | ||
| PolygonOptions() | ||
| .add(*POLYGON) | ||
| .fillColor(Color.CYAN) | ||
| .strokeColor(Color.BLUE) | ||
| .strokeWidth(5f) | ||
| ) | ||
| } | ||
|
|
||
| /** | ||
| * Add Markers with default info windows to the map. | ||
| */ | ||
| private fun addMarkers() { | ||
| map.addMarker( | ||
| MarkerOptions() | ||
| .position(BRISBANE) | ||
| .title("Brisbane") | ||
| ) | ||
| map.addMarker( | ||
| MarkerOptions() | ||
| .position(MELBOURNE) | ||
| .title("Melbourne") | ||
| .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_AZURE)) | ||
| ) | ||
| map.addMarker( | ||
| MarkerOptions() | ||
| .position(SYDNEY) | ||
| .title("Sydney") | ||
| .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)) | ||
| ) | ||
| map.addMarker( | ||
| MarkerOptions() | ||
| .position(ADELAIDE) | ||
| .title("Adelaide") | ||
| .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_YELLOW)) | ||
| ) | ||
| map.addMarker( | ||
| MarkerOptions() | ||
| .position(PERTH) | ||
| .title("Perth") | ||
| .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA)) | ||
| ) | ||
| } | ||
|
|
||
| companion object { | ||
| private val BRISBANE = LatLng(-27.47093, 153.0235) | ||
| private val MELBOURNE = LatLng(-37.81319, 144.96298) | ||
| private val SYDNEY = LatLng(-33.87365, 151.20689) | ||
| private val ADELAIDE = LatLng(-34.92873, 138.59995) | ||
| private val PERTH = LatLng(-31.952854, 115.857342) | ||
| private val DARWIN = LatLng(-12.459501, 130.839915) | ||
|
|
||
| /** | ||
| * A Polygon with five points in the Norther Territory, Australia. | ||
| */ | ||
| private val POLYGON = arrayOf( | ||
| LatLng(-18.000328, 130.473633), LatLng(-16.173880, 135.087891), | ||
| LatLng(-19.663970, 137.724609), LatLng(-23.202307, 135.395508), | ||
| LatLng(-19.705347, 129.550781) | ||
| ) | ||
| } | ||
| } |
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| <?xml version="1.0" encoding="utf-8"?><!-- | ||
| Copyright (C) 2014 The Android Open Source Project | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| --> | ||
| <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" | ||
| xmlns:map="http://schemas.android.com/apk/res-auto" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent"> | ||
|
|
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| <TextView | ||
| android:id="@+id/lite_demo_introtext" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| android:text="@string/lite_demo_intro" /> | ||
|
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|
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| <!-- Change the camera of the map to show no markers --> | ||
| <Button | ||
| android:id="@+id/go_to_darwin" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| android:onClick="showDarwin" | ||
| android:layout_alignParentLeft="true" | ||
| android:layout_alignParentStart="true" | ||
| android:layout_below="@+id/lite_demo_introtext" | ||
| android:text="@string/lite_go_to_darwin" /> | ||
|
|
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| <!-- Change the camera of the map to show one marker --> | ||
| <Button | ||
| android:id="@+id/go_to_adelaide" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| android:onClick="showAdelaide" | ||
| android:layout_alignParentLeft="true" | ||
| android:layout_alignParentStart="true" | ||
| android:layout_below="@+id/go_to_darwin" | ||
| android:layout_toEndOf="@+id/go_to_australia" | ||
| android:layout_toRightOf="@+id/go_to_australia" | ||
| android:text="@string/lite_go_to_adelaide" /> | ||
|
|
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| <!-- Change the camera of the map to show multiple markers --> | ||
| <Button | ||
| android:id="@+id/go_to_australia" | ||
| android:layout_width="wrap_content" | ||
| android:layout_height="wrap_content" | ||
| android:onClick="showAustralia" | ||
| android:layout_alignParentLeft="true" | ||
| android:layout_alignParentStart="true" | ||
| android:layout_below="@+id/go_to_adelaide" | ||
| android:layout_toEndOf="@+id/go_to_darwin" | ||
| android:layout_toRightOf="@+id/go_to_darwin" | ||
| android:text="@string/lite_go_to_australia" /> | ||
|
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|
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| <!-- MapFragment with lite mode enabled --> | ||
| <fragment | ||
| android:id="@+id/map" | ||
| class="com.google.android.gms.maps.SupportMapFragment" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="wrap_content" | ||
| android:layout_alignParentBottom="true" | ||
| android:layout_below="@id/go_to_australia" | ||
| map:liteMode="true" /> | ||
|
|
||
| </RelativeLayout> | ||
|
|
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