android高德地图定位功能的实现

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<1>先去高德开放平台去申请开发者账号,并且创建应用,获取API Key
<2>在清单文件中配置key,其中value是应用的key值

 <meta-data            android:name="com.amap.api.v2.apikey"            android:value="952d22d6f6e916e38fbe830d4517ca12" />

配置权限

    <!-- 用于进行网络定位 -->    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />    <!-- 用于访问GPS定位 -->    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />    <!-- 用于获取运营商信息，用于支持提供运营商信息相关的接口 -->    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />    <!-- 用于访问wifi网络信息，wifi信息会用于进行网络定位 -->    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />    <!-- 用于获取wifi的获取权限，wifi信息会用来进行网络定位 -->    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />    <!-- 用于访问网络，网络定位需要上网 -->    <uses-permission android:name="android.permission.INTERNET" />    <!-- 用于读取手机当前的状态 -->    <uses-permission android:name="android.permission.READ_PHONE_STATE" />    <!-- 用于写入缓存数据到扩展存储卡 -->    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />    <!-- 用于申请调用A-GPS模块 -->    <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />    <!-- 用于申请获取蓝牙信息进行室内定位 -->    <uses-permission android:name="android.permission.BLUETOOTH" />    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />

<3>在xml文件中添加地图控件

<com.amap.api.maps.MapView    android:id="@+id/location_view"    android:layout_width="match_parent"    android:layout_height="match_parent"></com.amap.api.maps.MapView>

<4>展示定位地图

public class LocationActivity extends AppCompatActivity {    public AMapLocationClient client=null;    private AMapLocationClientOption option=null;    private MapView mapView;    private AMap map;    private TextView tvAdd;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_location);        initView(savedInstanceState);    }    private void initListener() {        client.setLocationListener(new AMapLocationListener() {            @Override            public void onLocationChanged(AMapLocation aMapLocation) {                if(aMapLocation!=null){                    if(aMapLocation.getErrorCode()==0){                        aMapLocation.getLocationType();//获取当前结果来源,如网络定位.GPS定位                        double lat=aMapLocation.getLatitude();//获取纬度                        double lon=aMapLocation.getLongitude();//获取经度                        aMapLocation.getAccuracy();//获取精度信息//                        option.setOnceLocation(true);                        SimpleDateFormat format=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");                        Date date=new Date(aMapLocation.getTime());//定位时间                        LatLng latlon=new LatLng(lat,lon);                        MarkerOptions marker=new MarkerOptions();                        map.moveCamera(CameraUpdateFactory.newLatLngZoom(latlon,15));//显示在指定位置                        marker.position(latlon);                        marker.title("当前位置");                        marker.visible(true);                        BitmapDescriptor bitmapDescriptor= BitmapDescriptorFactory.fromBitmap(BitmapFactory.decodeResource(getResources(),R.drawable.point));                        marker.icon(bitmapDescriptor);                        map.addMarker(marker);                        tvAdd.setText("当前位置:"+aMapLocation.getAddress()+"         "+format.format(date));                    }else{                        Toast.makeText(LocationActivity.this,"定位失败",Toast.LENGTH_SHORT).show();                    }                }                    map.setMyLocationEnabled(true);            }        });    }    private void initLocation() {        option=new AMapLocationClientOption();        option.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy);        option.setNeedAddress(true);        option.setInterval(60000);        client.setLocationOption(option);        client.startLocation();    }    private void initView(Bundle savedInstanceState) {        mapView = ((MapView) findViewById(R.id.location_view));        tvAdd = ((TextView) findViewById(R.id.location_tv));        //此方法必须重写        mapView.onCreate(savedInstanceState);        client=new AMapLocationClient(getApplicationContext());        initListener();        map=mapView.getMap();        map.setMapType(AMap.MAP_TYPE_NORMAL);        initLocation();    }    @Override    protected void onResume() {        super.onResume();        mapView.onResume();    }    @Override    protected void onPause() {        super.onPause();        mapView.onPause();    }    @Override    protected void onDestroy() {        super.onDestroy();        client.onDestroy();    }    @Override    public void onSaveInstanceState(Bundle outState) {        super.onSaveInstanceState(outState);        mapView.onSaveInstanceState(outState);    }}

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