使用android融合位置api在MyLocation上不显示蓝点和圆圈

概述我使用LocationManager跟踪用户当前位置.现在,在将位置管理器更改为FusedLocationAPI之后,即使在设置map.setMyLocationEnabled(true)后,也不会显示蓝点和圆圈.我可以在地图片段的右上角看到当前位置图标,但点击它不会做任何事情.我将我的代码恢复到LocationManager现在我能够看到

我使用LocationManager跟踪用户当前位置.现在,在将位置管理器更改为FusedLocation API之后,即使在设置map.setMyLocationEnabled(true)后,也不会显示蓝点和圆圈.我可以在地图片段的右上角看到当前位置图标,但点击它不会做任何事情.我将我的代码恢复到LocationManager现在我能够看到指向我当前位置的蓝点.使用Fused Location API可能有什么问题.

解决方法:

用于针对API-23或更高版本

见this answer….

对于API-22和更低的目标：

此代码适用于我,它具有MyLocation蓝点/圆,并且它还使用融合位置提供程序在当前位置放置标记.

这是我使用的整个活动代码：

import androID.support.v7.app.AppCompatActivity;import androID.os.Bundle;import com.Google.androID.gms.maps.GoogleMap;import com.Google.androID.gms.maps.SupportMapFragment;import androID.location.Location;import androID.Widget.Toast;import com.Google.androID.gms.common.ConnectionResult;import com.Google.androID.gms.common.API.Googleapiclient;import com.Google.androID.gms.location.LocationRequest;import com.Google.androID.gms.location.LocationServices;import com.Google.androID.gms.location.LocationListener;import com.Google.androID.gms.maps.model.BitmapDescriptorFactory;import com.Google.androID.gms.maps.model.LatLng;import com.Google.androID.gms.maps.model.Marker;import com.Google.androID.gms.maps.model.MarkerOptions;import com.Google.androID.gms.maps.OnMapReadyCallback;public class MainActivity extends AppCompatActivity implements        Googleapiclient.ConnectionCallbacks, Googleapiclient.OnConnectionFailedListener,        LocationListener,        OnMapReadyCallback {    LocationRequest mLocationRequest;    Googleapiclient mGoogleapiclient;    LatLng latLng;    GoogleMap mGoogleMap;    SupportMapFragment mFragment;    Marker mCurrLocation;    @OverrIDe    protected voID onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentVIEw(R.layout.activity_main);        mFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentByID(R.ID.map);        mFragment.getMapAsync(this);    }    @OverrIDe    public voID onMapReady(GoogleMap GoogleMap) {        mGoogleMap = GoogleMap;        mGoogleMap.setMyLocationEnabled(true);        buildGoogleapiclient();        mGoogleapiclient.connect();    }    @OverrIDe    public voID onPause() {        super.onPause();        //Unregister for location callbacks:        if (mGoogleapiclient != null) {            LocationServices.FusedLocationAPI.removeLocationUpdates(mGoogleapiclient, this);        }    }    protected synchronized voID buildGoogleapiclient() {        Toast.makeText(this,"buildGoogleapiclient",Toast.LENGTH_SHORT).show();        mGoogleapiclient = new Googleapiclient.Builder(this)                .addConnectionCallbacks(this)                .addOnConnectionFailedListener(this)                .addAPI(LocationServices.API)                .build();    }    @OverrIDe    public voID onConnected(Bundle bundle) {        Toast.makeText(this,"onConnected",Toast.LENGTH_SHORT).show();        Location mLastLocation = LocationServices.FusedLocationAPI.getLastLocation(                mGoogleapiclient);        if (mLastLocation != null) {            //place marker at current position            mGoogleMap.clear();            latLng = new LatLng(mLastLocation.getLatitude(), mLastLocation.getLongitude());            MarkerOptions markerOptions = new MarkerOptions();            markerOptions.position(latLng);            markerOptions.Title("Current position");            markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_magenta));            mCurrLocation = mGoogleMap.addMarker(markerOptions);        }        mLocationRequest = new LocationRequest();        mLocationRequest.setInterval(5000); //5 seconds        mLocationRequest.setFastestInterval(3000); //3 seconds        mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);        //mLocationRequest.setSmallestdisplacement(0.1F); //1/10 meter        LocationServices.FusedLocationAPI.requestLocationUpdates(mGoogleapiclient, mLocationRequest, this);    }    @OverrIDe    public voID onConnectionSuspended(int i) {        Toast.makeText(this,"onConnectionSuspended",Toast.LENGTH_SHORT).show();    }    @OverrIDe    public voID onConnectionFailed(ConnectionResult connectionResult) {        Toast.makeText(this,"onConnectionFailed",Toast.LENGTH_SHORT).show();    }    @OverrIDe    public voID onLocationChanged(Location location) {        //remove prevIoUs current location marker and add new one at current position        if (mCurrLocation != null) {            mCurrLocation.remove();        }        latLng = new LatLng(location.getLatitude(), location.getLongitude());        MarkerOptions markerOptions = new MarkerOptions();        markerOptions.position(latLng);        markerOptions.Title("Current position");        markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_magenta));        mCurrLocation = mGoogleMap.addMarker(markerOptions);        Toast.makeText(this,"Location Changed",Toast.LENGTH_SHORT).show();        //If you only need one location, unregister the Listener        //LocationServices.FusedLocationAPI.removeLocationUpdates(mGoogleapiclient, this);    }}

activity_main.xml中：

<relativeLayout xmlns:androID="http://schemas.androID.com/apk/res/androID"    xmlns:tools="http://schemas.androID.com/tools" androID:layout_wIDth="match_parent"    androID:layout_height="match_parent" androID:paddingleft="@dimen/activity_horizontal_margin"    androID:paddingRight="@dimen/activity_horizontal_margin"    androID:paddingtop="@dimen/activity_vertical_margin"    androID:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">    <fragment                androID:ID="@+ID/map"        androID:layout_wIDth="wrap_content"        androID:layout_height="wrap_content"/></relativeLayout>

结果：

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