MapsCompose.kt

/*
 * Copyright 2023 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.app_compose

import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.material.Switch
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Modifier
import com.google.android.gms.maps.model.CameraPosition
import com.google.android.gms.maps.model.LatLng
import com.google.maps.android.compose.GoogleMap
import com.google.maps.android.compose.MapProperties
import com.google.maps.android.compose.MapType
import com.google.maps.android.compose.MapUiSettings
import com.google.maps.android.compose.Marker
import com.google.maps.android.compose.rememberCameraPositionState
import com.google.maps.android.compose.rememberUpdatedMarkerState

@Composable
fun AddAMap() {
  // [START maps_android_compose_add_a_map]
  val singapore = LatLng(1.35, 103.87)
  val singaporeMarkerState = rememberUpdatedMarkerState(position = singapore)
  val cameraPositionState = rememberCameraPositionState {
    position = CameraPosition.fromLatLngZoom(singapore, 10f)
  }
  GoogleMap(
    modifier = Modifier.fillMaxSize(),
    cameraPositionState = cameraPositionState
  ) {
    Marker(
      state = singaporeMarkerState,
      title = "Singapore",
      snippet = "Marker in Singapore"
    )
  }
  // [END maps_android_compose_add_a_map]
}

@Composable
fun Properties() {
  // [START maps_android_compose_set_properties]
  var uiSettings by remember { mutableStateOf(MapUiSettings()) }
  var properties by remember {
    mutableStateOf(MapProperties(mapType = MapType.SATELLITE))
  }

  Box(Modifier.fillMaxSize()) {
    GoogleMap(
      modifier = Modifier.matchParentSize(),
      properties = properties,
      uiSettings = uiSettings
    )
    Switch(
      checked = uiSettings.zoomControlsEnabled,
      onCheckedChange = {
        uiSettings = uiSettings.copy(zoomControlsEnabled = it)
      }
    )
  }
  // [END maps_android_compose_set_properties]
}