高德地图在Fragment中展示，并实现定位功能

注：

Fragment之间进行切换的时候，会出现不能定位

在Fragment生命周期方法，onDestroy中这样写

mLocationOption = null;mLocationClient = null;mMap = null;mapView.onDestroy()

示例：

public class CurrentLocationFragment extends Fragment implements AMapLocationListener, LocationSource {    private Activity mActivity;    private AMap mMap;    private MapView mapView;    private OnLocationChangedListener mListener;    private AMapLocationClient mLocationClient;    private AMapLocationClientOption mLocationOption;    private LatLng myLocation;    private BitmapDescriptor successDescripter;    private EditText etAddress;    private TextView tvAddressName;    private LinearLayout llOk;    private View view;    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {        LogUtils.d("zh", "onCreateView进来了");        mActivity = getActivity();        view = View.inflate(mActivity, R.layout.fragment_current_location, null);        mapView = (MapView) view.findViewById(R.id.map_view);        etAddress = (EditText) view.findViewById(R.id.et_address);        tvAddressName = (TextView) view.findViewById(R.id.tv_address_name);        llOk = (LinearLayout) view.findViewById(R.id.ll_ok);        mapView.onCreate(savedInstanceState);        initMap();        setUpLocationStyle();        initListener();        return view;    }    /**     * 监听     */    private void initListener() {        llOk.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                String signedAddress = etAddress.getText().toString().trim();//签到地址                String addressName = tvAddressName.getText().toString().trim();//定位地址名称                if (TextUtils.isEmpty(signedAddress)){                    ToastUtils.showToast("请输入签到地点");                    return;                }            }        });    }    private void initMap() {        if (mMap == null) {            mMap = mapView.getMap();        }        mMap.setLocationSource(this);// 设置定位监听        mMap.setMyLocationEnabled(true);        UiSettings uiSettings = mMap.getUiSettings();        uiSettings.setZoomControlsEnabled(true);        CameraUpdate cameraUpdate = CameraUpdateFactory.zoomTo(15);        mMap.moveCamera(cameraUpdate);        successDescripter = BitmapDescriptorFactory.fromResource(R.drawable.gps_point);    }    private void setUpLocationStyle() {        // 自定义系统定位蓝点        MyLocationStyle myLocationStyle = new MyLocationStyle();        myLocationStyle.myLocationIcon(BitmapDescriptorFactory.fromResource(R.drawable.gps_point));        myLocationStyle.strokeWidth(0);        myLocationStyle.radiusFillColor(Color.TRANSPARENT);        mMap.setMyLocationStyle(myLocationStyle);    }    @Override    public void onResume() {        super.onResume();        LogUtils.d("zh", "onResume进来了");        mapView.onResume();    }    @Override    public void onPause() {        super.onPause();        LogUtils.d("zh", mapView + ":onPause");        mapView.onPause();    }    @Override    public void onSaveInstanceState(Bundle outState) {        super.onSaveInstanceState(outState);        LogUtils.d("zh", mapView + ":onSaveInstanceState");        mapView.onSaveInstanceState(outState);    }    @Override    public void onDestroy() {        super.onDestroy();        LogUtils.d("zh", mapView + ":onDestroy进来了");        mLocationOption = null;        mLocationClient = null;        mMap = null;        mapView.onDestroy();    }    @Override    public void onLocationChanged(AMapLocation aMapLocation) {        LogUtils.d("zh", "onLocationChanged进来了");        LogUtils.d("zh", aMapLocation + "");        LogUtils.d("zh", aMapLocation.getErrorCode() + "");        if (aMapLocation != null && aMapLocation.getErrorCode() == 0) {            if (mListener != null) {                mListener.onLocationChanged(aMapLocation);// 显示系统小蓝点            }            //获取当前经纬度坐标            String address = aMapLocation.getAddress();            LogUtils.d("zh",address);            myLocation = new LatLng(aMapLocation.getLatitude(), aMapLocation.getLongitude());            //fixedMarker();            tvAddressName.setText(address);        }    }    @Override    public void activate(OnLocationChangedListener onLocationChangedListener) {        LogUtils.d("zh", "activate进来了");        mListener = onLocationChangedListener;        if (mLocationClient == null) {            mLocationClient = new AMapLocationClient(mActivity);            mLocationOption = new AMapLocationClientOption();            //设置定位监听            mLocationClient.setLocationListener(this);            //设置为高精度定位模式            mLocationOption.setLocationMode(AMapLocationClientOption.AMapLocationMode.Hight_Accuracy);            //设置定位参数            mLocationOption.setOnceLocation(true);//只定位一次            mLocationOption.setHttpTimeOut(2000);            mLocationClient.setLocationOption(mLocationOption);            // 此方法为每隔固定时间会发起一次定位请求，为了减少电量消耗或网络流量消耗，            // 注意设置合适的定位时间的间隔（最小间隔支持为2000ms），并且在合适时间调用stopLocation()方法来取消定位请求            // 在定位结束后，在合适的生命周期调用onDestroy()方法            // 在单次定位情况下，定位无论成功与否，都无需调用stopLocation()方法移除请求，定位sdk内部会移除            mLocationClient.startLocation();//开始定位        }    }    @Override    public void deactivate() {        LogUtils.d("zh", "deactivate我是什么时候进来的");        mListener = null;        if (mLocationClient != null) {            mLocationClient.stopLocation();            mLocationClient.onDestroy();        }        mLocationClient = null;    }}