android--Gold Map Automatic positioning

As with other maps, go to the official website to register as a developer and then get the key. Directly below the code.

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Package Com.example.gaodemap;import Com.amap.api.maps.amap;import Com.amap.api.maps.cameraupdate;import Com.amap.api.maps.cameraupdatefactory;import Com.amap.api.maps.mapview;import Com.amap.api.maps.model.LatLng; Import Com.amap.api.maps.model.marker;import Com.amap.api.maps.model.markeroptions;import android.app.Activity; Import Android.content.context;import Android.location.location;import Android.location.locationlistener;import Android.location.locationmanager;import Android.os.bundle;import Android.widget.compoundbutton;import Android.widget.togglebutton;public class Mainactivity extends Activity {private Mapview mmapview;private AMap AMap; Private Mapview mapview;private Locationmanager locationmanager; @Overrideprotected void OnCreate (Bundle Savedinstancestate) {super.oncreate (savedinstancestate); Setcontentview (r.layout.activity_main); LocationManager = (Locationmanager) Getsystemservice (context.location_service); Mmapview = (Mapview) Findviewbyid (R.ID.MAP); Mmapview.oncreate (SavediNstancestate); init ();//gprs provides positioning information change locationmanager.requestlocationupdates (Locationmanager.gps_provider, 300, 8, New Locationlistener () {@Overridepublic void onstatuschanged (String provider, int status, Bundle extras) {//TODO Auto-gen erated method stub} @Overridepublic void Onproviderenabled (String provider) {////Use the positioning information provided by GPRS to update the location updateposition ( Locationmanager.getlastknownlocation (provider));} @Overridepublic void onproviderdisabled (String provider) {//TODO auto-generated method stub} @Overridepublic void Onlocationchanged (location location) {//TODO auto-generated method Stubupdateposition (location);}}); ToggleButton TB = (ToggleButton) Findviewbyid (R.ID.TB); Tb.setoncheckedchangelistener (new Compoundbutton.oncheckedchangelistener () {@Overridepublic void oncheckedchanged (Compoundbutton Buttonview, Boolean isChecked) {//TODO auto-generated method stubif (isChecked) {amap.setmaptype (amap.map_type_satellite);} Else{amap.setmaptype (Amap.map_type_normal);}});} Initialize the AMAP object private void init () {if (aMap = = null) {AMap = Mmapview.getmap ();}} @Overrideprotected void OnDestroy () {//TODO auto-generated method Stubsuper.ondestroy (); Mmapview.ondestroy ();} @Overrideprotected void OnPause () {//TODO auto-generated method Stubsuper.onpause (); Mmapview.onpause ();} @Overrideprotected void Onresume () {//TODO auto-generated method Stubsuper.onresume (); Mmapview.onresume ();} @Overrideprotected void Onsaveinstancestate (Bundle outstate) {//TODO auto-generated method Stubsuper.onsaveinstancestate (outstate); mmapview.onsaveinstancestate (outstate);} private void Updateposition (location location) {latlng pos = new Latlng (Location.getlatitude (), Location.getlongitude () );//Create a cameraupdatecameraupdate cu = Cameraupdatefactory.changelatlng (POS) that sets the latitude and longitude;//update the display area of the map Amap.movecamera (CU) ;//Clear all marker and other coverings amap.clear ();//Create a Markeroptions object markeroptions markoptions = new Markeroptions (); Markoptions.position (POS);//Add markeroptions (actually add Marker) Marker Marker = Amap.addmarker (markoptions);}}

<?xml version= "1.0" encoding= "Utf-8"? ><framelayout xmlns:android= "http://schemas.android.com/apk/res/ Android "Android:layout_width=" Match_parent "android:layout_height=" Match_parent "> <com.amap.api.maps. Mapview android:id= "@+id/map" android:layout_width= "match_parent" android:layout_height= "match_parent "> </com.amap.api.maps.MapView> <togglebutton android:id=" @+id/tb "android:layout_width="         Wrap_content "android:layout_height=" wrap_content "android:gravity=" Top|right "android:textoff=" General map "        android:texton= "Satellite map" android:checked= "false" android:background= "@android: Color/transparent" /> <linearlayout android:layout_width= "fill_parent" android:layout_height= "Wrap_content" a ndroid:layout_gravity= "Bottom" android:orientation= "horizontal" > <button android:id= "@+id/ Near "Android:layout_width=" WRap_content "android:layout_height=" Wrap_content "android:text=" near "android:layout_weight=" 1 "android:back Ground= "@android: Color/transparent"/> <button android:id= "@+id/route" android:layout_width = "Wrap_content" android:layout_height= "wrap_content" android:text= "route" android:background= "@android: C Olor/transparent "android:layout_weight=" 1 "/> <button android:id=" @+id/my "Android: Layout_width= "Wrap_content" android:layout_height= "wrap_content" android:text= "my" android:background = "@android: Color/transparent" android:layout_weight= "1"/> </LinearLayout></FrameLayout>

android--Gold Map Automatic positioning