写在前面：
公司项目都是跟地图有关的，国内地图sdk接触过高德地图和百度地图，都是中文文档，大家有兴趣可去自己查看，国外地图sdk做的好的有arcgis for android和mapbox，本文将会对mapbox进行入门教程。
android sdk 官网：https://www.mapbox.com/android-docs/map-sdk/overview/
github地址：https://github.com/mapbox/mapbox-gl-native/tree/master/platform/android
官方demo github地址：https://github.com/mapbox/mapbox-android-demo
配置：
access_token：可以去官网注册账号并申请(ps：为方便体验，下面提供一条token)
pk.eyJ1IjoiY2FtbWFjZSIsImEiOiJjaW9vbGtydnQwMDAwdmRrcWlpdDVoM3pjIn0.Oy_gHelWnV12kJxHQWV7XQ
添加依赖：
dependencies {
implementation 'com.mapbox.mapboxsdk:mapbox-android-sdk:5.5.2'
}
在application中初始化
class MyApp :Application(){
override fun onCreate() {
super.onCreate()
Mapbox.getInstance(this, getString(R.string.access_token))
}
}
在AndroidManifest添加权限
< uses-permission android:name="android.permission.INTERNET" />
< uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
加载地图：
xml：
<com.mapbox.mapboxsdk.maps.MapView
android:id="@+id/mapView"
android:layout_width="match_parent"
android:layout_height="match_parent"
mapbox:mapbox_cameraTargetLat="31.855500"
mapbox:mapbox_cameraTargetLng="117.204593"
mapbox:mapbox_cameraZoom="11"
mapbox:mapbox_styleUrl="@string/mapbox_style_mapbox_streets"
mapbox:mapbox_uiLogo="false"
mapbox:mapbox_uiAttribution="false"/>
xml中mapview设置属性：https://github.com/mapbox/mapbox-gl-native/blob/master/platform/android/MapboxGLAndroidSDK/src/main/res/values/attrs.xml
MapViewActivity:
onCreate();onStart();onResume();onPause();onStop();onSaveInstanceState();onLowMemory();onDestroy();部分生命周期调用建议放在baseActivity中
class MapViewActivity :AppCompatActivity(){
private lateinit var mapBox:MapboxMap
override fun onCreate(savedInstanceState:Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_simple_mapview)
mapView.onCreate(savedInstanceState)
setSupportActionBar(toolBar)
supportActionBar?.title="加载地图"
mapView.getMapAsync {
mapBox=it
//可在xml中设置，也可代码动态设置
//it.animateCamera(CameraUpdateFactory.newLatLng(LatLng(31.855500,117.204593)),1000 )
}
}
override fun onStart() {
super.onStart()
mapView.onStart()
}
override fun onResume() {
super.onResume()
mapView.onResume()
}
override fun onPause() {
super.onPause()
mapView.onPause()
}
override fun onStop() {
super.onStop()
mapView.onStop()
}
override fun onDestroy() {
super.onDestroy()
mapView.onDestroy()
}
override fun onLowMemory() {
super.onLowMemory()
mapView.onLowMemory()
}
override fun onSaveInstanceState(outState:Bundle?) {
super.onSaveInstanceState(outState)
outState?.let { mapView.onSaveInstanceState(it) }
}
override fun onCreateOptionsMenu(menu:Menu?):Boolean {
menuInflater.inflate(R.menu.menu_map_style, menu)
return super.onCreateOptionsMenu(menu)
}
override fun onOptionsItemSelected(item:MenuItem?):Boolean {
//通过菜单，选择不同的图层
when(item?.itemId){
R.id.menu_streets->mapBox.setStyleUrl(Style.MAPBOX_STREETS)
R.id.menu_dark->mapBox.setStyleUrl(Style.DARK)
R.id.menu_light->mapBox.setStyleUrl(Style.LIGHT)
R.id.menu_outdoors->mapBox.setStyleUrl(Style.OUTDOORS)
R.id.menu_satelite->mapBox.setStyleUrl(Style.SATELLITE)
R.id.menu_satelite_streets->mapBox.setStyleUrl(Style.SATELLITE_STREETS)
}
return super.onOptionsItemSelected(item)
}
}
mapbox入门教程就完成了，大家通过上面的代码自己复制就可以成功加载地图了，还有点、线、面，图层、geojson的加载等知识会在之后介绍。
