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使用Google Play服务版本9.0.83进行路线跟踪活动时，地图上没有显示标记

本文介绍了使用Google Play服务版本9.0.83进行路线跟踪活动时，地图上没有显示标记的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

在下面的代码中，我的 if（map！= null& mapIsReady == true）{...} 在我的 updateLocation 方法永远不会被调用。任何想法为什么？

  package com.noureddine_ouertani.www.wocelli50; 
 
导入android.Manifest; 
导入android.content.Context; 
导入android.content.pm.PackageManager; 
导入android.graphics.Color; 
导入android.location.Criteria; 
导入android.location.Location; 
导入android.location.LocationListener; 
导入android.location.LocationManager; 
导入android.net.Uri; 
导入android.os.Bundle; 
导入android.os.PowerManager; 
导入android.support.annotation.NonNull; 
导入android.support.v4.app.ActivityCompat; 
导入android.support.v4.app.FragmentActivity; 
导入android.widget.Toast; 
 
 import com.google.android.gms.appindexing.Action; 
 import com.google.android.gms.appindexing.AppIndex; 
 import com.google.android.gms.common.ConnectionResult; 
 import com.google.android.gms.common.api.GoogleApiClient; 
 import com.google.android.gms.location.LocationServices; 
 import com.google.android.gms.maps.CameraUpdateFactory; 
导入com.google.android.gms.maps.GoogleMap; 
 import com.google.android.gms.maps.OnMapReadyCallback; 
 import com.google.android.gms.maps.SupportMapFragment; 
 import com.google.android.gms.maps.model.LatLng; 
导入com.google.android.gms.maps.model.MarkerOptions; 
 import com.google.android.gms.maps.model.PolylineOptions; 
 
 import java.util.ArrayList; 
 import java.util.List; 
 
 public class NeueRouteAufzeichnen extends FragmentActivity实现了OnMapReadyCallback，GoogleApiClient.ConnectionCallbacks，GoogleApiClient.OnConnectionFailedListener {
 
私人LocationManager locationManager; 
私人位置mLastLocation; 
私人位置previousLocation; 
私人长途旅行; 
 
 private boolean tracking = false; 
私人长时间startTime; 
 private PowerManager.WakeLock wakeLock; 
私人布尔gpsFix; 
 
 private static final double MILLISECONDS_PER_HOUR = 100 * 60 * 60; 
 private static final double MILES_PER_KILOMETER = 0.621371192; 
 private static final int MAP_ZOOM = 18; 
 
私人列表<位置>位置; 
 
私有GoogleApiClient mGoogleApiClient; 
 
 GoogleMap地图; 
 LatLng myPosition; 
布尔值mapIsReady = false; 
 
 com.google.android.gms.location.LocationListener mlocationListener = new com.google.android.gms.location.LocationListener（）{
 @Override 
 public void onLocationChanged（位置位置）{
 
 updateLocation（location）; 
} 
 
}; 
 
 @Override 
 protected void onCreate（Bundle savedInstanceState）{
 super.onCreate（savedInstanceState）; 
 if（mGoogleApiClient == null）{
 mGoogleApiClient = new GoogleApiClient.Builder（this）
 .addConnectionCallbacks（this）
 .addOnConnectionFailedListener（this）
 .addApi（ LocationServices.API）
 .addApi（AppIndex.API）.build（）; 
} 
 setContentView（R.layout.activity_neue_route_aufzeichnen）; 
 SupportMapFragment mapFragment =（SupportMapFragment）getSupportFragmentManager（）
 .findFragmentById（R.id.map）; 
 mapFragment.getMapAsync（this）; 
 locations = new ArrayList< Location>（）; 
 
 
 
保护无效onStart（）{
 mGoogleApiClient.connect（）; 
 super.onStart（）; 
 //注意：这是自动生成的，用于实现App Indexing API。 
 //有关更多信息，请参阅https://g.co/AppIndexing/AndroidStudio。 
 Action viewAction = Action.newAction（
 Action.TYPE_VIEW，// TODO：选择一个动作类型
NeueRouteAufzeichnen Page，// TODO：为显示的内容定义一个标题。 b $ b // TODO：如果您的网页内容与此应用活动的内容匹配，则
 //确保此自动生成的网页网址是正确的。
 //否则，请将网址设置为null。
 Uri.parse（http：// host / path），
 // TODO：确保这个自动生成的应用程序URL是正确的
 Uri.parse（android -app：//com.noureddine_ouertani.www.wocelli50/http/host/path）
）; 
 AppIndex.AppIndexApi.start（mGoogleApiClient，viewAction）; 
} 
 
保护无效onStop（）{
 mGoogleApiClient.disconnect（）; 
 super.onStop（）; 
 //注意：这是自动生成的，用于实现App Indexing API。 
 //有关更多信息，请参阅https://g.co/AppIndexing/AndroidStudio。 
 Action viewAction = Action.newAction（
 Action.TYPE_VIEW，// TODO：选择一个动作类型
NeueRouteAufzeichnen Page，// TODO：为显示的内容定义一个标题。 b $ b // TODO：如果您的网页内容与此应用活动的内容匹配，则
 //确保此自动生成的网页网址是正确的。
 //否则，请将网址设置为null。
 Uri.parse（http：// host / path），
 // TODO：确保这个自动生成的应用程序URL是正确的
 Uri.parse（android -app：//com.noureddine_ouertani.www.wocelli50/http/host/path）
）; 
 AppIndex.AppIndexApi.end（mGoogleApiClient，viewAction）; 
 
 $ b @Override 
 public void onConnected（Bundle connectionHint）{
 if（ActivityCompat.checkSelfPermission（this，Manifest.permission.ACCESS_FINE_LOCATION）！= PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission（this，Manifest.permission.ACCESS_FINE_LOCATION）！= PackageManager.PERMISSION_GRANTED）{
 Toast.makeText（getApplicationContext（），mGoogleApiClient缺少的权限，Toast.LENGTH_SHORT）.show ）; 
} 
 Toast.makeText（getApplicationContext（），mGoogleApiClient已连接。，Toast.LENGTH_SHORT）.show（）; 
 mLastLocation = LocationServices.FusedLocationApi.getLastLocation（mGoogleApiClient）; 
 if（mLastLocation！= null）{
 Toast.makeText（getApplicationContext（），YES！mLastLocation！= null，Toast.LENGTH_SHORT）.show（）; 
 
 $ b} 
 
 @Override 
 public void onConnectionSuspended（int i）{
 Toast.makeText（getApplicationContext（），Connection mGoogleApiClient挂起。，Toast.LENGTH_SHORT）.show（）; 
} 
 
 public void addPoint（Location location）{
 locations.add（location）; 
 Toast.makeText（getApplicationContext（），addPoint已被调用。，Toast.LENGTH_SHORT）.show（）; 
} 
 
 @Override 
 public void onMapReady（GoogleMap map）{
 
 distanceTraveled = 0; 
 
 Criteria criteria = new Criteria（）; 
 criteria.setAccuracy（Criteria.ACCURACY_FINE）; 
 criteria.setBearingRequired（true）; 
 criteria.setCostAllowed（true）; 
 criteria.setPowerRequirement（Criteria.POWER_LOW）; 
 criteria.setAltitudeRequired（false）; 
 locationManager =（LocationManager）getSystemService（LOCATION_SERVICE）; 
 
 Toast.makeText（getApplicationContext（），onMapReady被调用。，Toast.LENGTH_SHORT）.show（）; 
 if（ActivityCompat.checkSelfPermission（this，Manifest.permission.ACCESS_FINE_LOCATION）！= PackageManager.PERMISSION_GRANTED）{
 float LOCATION_REFRESH_DISTANCE = 5000; 
长LOCATION_REFRESH_TIME = 0; 
 locationManager.requestLocationUpdates（LocationManager.GPS_PROVIDER，LOCATION_REFRESH_TIME，LOCATION_REFRESH_DISTANCE，（LocationListener）mlocationListener）; 
} 
 
 PowerManager powerManager =（PowerManager）getSystemService（Context.POWER_SERVICE）; 
 wakeLock = powerManager.newWakeLock（PowerManager.PARTIAL_WAKE_LOCK，NO Sleep）; 
 wakeLock.acquire（）; 
 if（！mGoogleApiClient.isConnected（））{
 mGoogleApiClient.connect（）; 
} 
 
 tracking = true; 
 startTime = System.currentTimeMillis（）; 
 //Toast.makeText（getApplicationContext（），onMapReady！中的mGoogleApiClient.connect（）调用，Toast.LENGTH_SHORT）.show（）; 
 // LatLng sydney = new LatLng（-34，151）; 
 //map.addMarker（new MarkerOptions（）。position（sydney）.title（悉尼标记））; 
 //map.moveCamera(CameraUpdateFactory.newLatLng(sydney））; 
 mapIsReady = true; 
 
 
 
 $ b保护无效updateLocation（位置位置）{
 Toast.makeText（getApplicationContext（），updateLocation方法调用。，Toast。 LENGTH_SHORT）.show（）; 
 if（location！= null&& gpsFix == true）{
 addPoint（location）; 
 
 if（previousLocation！= null）
 distanceTraveled + = location.distanceTo（previousLocation）; 
} 
 
 if（map！= null& mapIsReady == true）{
 Toast.makeText（getApplicationContext（），got last last location ... mLastlocation displayed ！，Toast.LENGTH_SHORT）.show（）; 
 LatLng newPosition = new LatLng（location.getLatitude（），location.getLongitude（））; 
 map.addMarker（new MarkerOptions（）。position（newPosition）.title（newPosition））; 
 map.moveCamera（CameraUpdateFactory.newLatLng（newPosition））; 
 locations.add（mLastLocation）; 
} 
 
 previousLocation = location; 
} 
 $ b $ public void draw（）{
 Toast.makeText（getApplicationContext（），Draw method called。，Toast.LENGTH_SHORT）.show（）; 
 if（map == null）{
 return; 
} 
 
 PolylineOptions选项=新的PolylineOptions（）; 
 
 options.color（Color.parseColor（＃CC0000FF））; 
 options.width（5）; 
 options.visible（true）; （位置locRecorded：locations）
 
 {
 options.add（new LatLng（locRecorded.getLatitude（），
 locRecorded.getLongitude（）））; 
 Toast.makeText（getApplicationContext（），draw method got new location！，Toast.LENGTH_SHORT）.show（）; 
 
 
 
} 
 
 map.addPolyline（options）; 
 
 
 @Override 
 public void onConnectionFailed（@NonNull ConnectionResult connectionResult）{
 Toast.makeText（getApplicationContext（），mGoogleApiClient连接失败，Toast.LENGTH_SHORT）.show（）; 
} 
 
 
}

下面的地图（没有标记）





PS ：我仍然不会调用我的 draw（）方法。



。

阅读了一些帖子和答案后（例如或）关于这个日志错误我想我发现这是一个已知的Google Play服务版本9.0.83问题，导致一些应用程序中的错误使用像我的一个GoogleApiClient。



我试图解决这个问题：
1.
2.



您还需要添加 this.map = map; 在你的 onMapReady 中。



在你的例子中：

  public class NeueRouteAufzeichnen extends FragmentActivity实现了OnMapReadyCallback，GoogleApiClient.ConnectionCallbacks，GoogleApiClient.OnConnectionFailedListener {
 
 private Location mLastLocation; 
私人位置previousLocation; 
私人长途旅行; 
 
 private boolean tracking = false; 
私人长时间startTime; 
 private PowerManager.WakeLock wakeLock; 
私人布尔gpsFix; 
 
 private static final double MILLISECONDS_PER_HOUR = 100 * 60 * 60; 
 private static final double MILES_PER_KILOMETER = 0.621371192; 
 private static final int MAP_ZOOM = 18; 
 
私人列表<位置>位置; 
 
私有GoogleApiClient mGoogleApiClient; 
 
 GoogleMap地图; 
 LatLng myPosition; 
布尔值mapIsReady = false; 
 
 LocationRequest mLocationRequest; 
 
 com.google.android.gms.location.LocationListener mlocationListener = new com.google.android.gms.location.LocationListener（）{
 @Override 
 public void onLocationChanged（位置位置）{
 updateLocation（location）; 
} 
}; 
 
 @Override 
 protected void onCreate（Bundle savedInstanceState）{
 super.onCreate（savedInstanceState）; 
 if（mGoogleApiClient == null）{
 mGoogleApiClient = new GoogleApiClient.Builder（this）
 .addConnectionCallbacks（this）
 .addOnConnectionFailedListener（this）
 .addApi（ LocationServices.API）
 .addApi（AppIndex.API）.build（）; 
} 
 setContentView（R.layout.activity_neue_route_aufzeichnen）; 
 SupportMapFragment mapFragment =（SupportMapFragment）getSupportFragmentManager（）
 .findFragmentById（R.id.map）; 
 mapFragment.getMapAsync（this）; 
 locations = new ArrayList< Location>（）; 
} 
 
保护无效onStart（）{
 mGoogleApiClient.connect（）; 
 super.onStart（）; 
 //注意：这是自动生成的，用于实现App Indexing API。 
 //有关更多信息，请参阅https://g.co/AppIndexing/AndroidStudio。 
 Action viewAction = Action.newAction（
 Action.TYPE_VIEW，// TODO：选择一个动作类型
NeueRouteAufzeichnen Page，// TODO：为显示的内容定义一个标题。 b $ b // TODO：如果您的网页内容与此应用活动的内容匹配，则
 //确保此自动生成的网页网址是正确的。
 //否则，请将网址设置为null。
 Uri.parse（http：// host / path），
 // TODO：确保这个自动生成的应用程序URL是正确的
 Uri.parse（android -app：//com.noureddine_ouertani.www.wocelli50/http/host/path）
）; 
 AppIndex.AppIndexApi.start（mGoogleApiClient，viewAction）; 
} 
 
保护无效onStop（）{
 mGoogleApiClient.disconnect（）; 
 super.onStop（）; 
 //注意：这是自动生成的，用于实现App Indexing API。 
 //有关更多信息，请参阅https://g.co/AppIndexing/AndroidStudio。 
 Action viewAction = Action.newAction（
 Action.TYPE_VIEW，// TODO：选择一个动作类型
NeueRouteAufzeichnen Page，// TODO：为显示的内容定义一个标题。 b $ b // TODO：如果您的网页内容与此应用活动的内容匹配，则
 //确保此自动生成的网页网址是正确的。
 //否则，请将网址设置为null。
 Uri.parse（http：// host / path），
 // TODO：确保这个自动生成的应用程序URL是正确的
 Uri.parse（android -app：//com.noureddine_ouertani.www.wocelli50/http/host/path）
）; 
 AppIndex.AppIndexApi.end（mGoogleApiClient，viewAction）; 
 
 $ b @Override 
 public void onConnected（Bundle connectionHint）{
 if（ActivityCompat.checkSelfPermission（this，Manifest.permission.ACCESS_FINE_LOCATION）！= PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission（this，Manifest.permission.ACCESS_FINE_LOCATION）！= PackageManager.PERMISSION_GRANTED）{
 Toast.makeText（getApplicationContext（），mGoogleApiClient缺少的权限，Toast.LENGTH_SHORT）.show ）; 
} 
 Toast.makeText（getApplicationContext（），mGoogleApiClient已连接。，Toast.LENGTH_SHORT）.show（）; 
 mLastLocation = LocationServices.FusedLocationApi.getLastLocation（mGoogleApiClient）; 
 if（mLastLocation！= null）{
 Toast.makeText（getApplicationContext（），YES！mLastLocation！= null，Toast.LENGTH_SHORT）.show（）; 
} 
 
 mLocationRequest = LocationRequest.create（）; 
 mLocationRequest.setPriority（LocationRequest.PRIORITY_HIGH_ACCURACY）; 
 mLocationRequest.setInterval（1000）; // 1 SECOND 
 mLocationRequest.setFastestInterval（1000）; // 1 SECOND 
 LocationServices.FusedLocationApi.requestLocationUpdates（
 mGoogleApiClient，mLocationRequest，mlocationListener）; 
 
 $ b @Override 
 public void onConnectionSuspended（int i）{
 Toast.makeText（getApplicationContext（），暂停mGoogleApiClient的连接。，Toast。 LENGTH_SHORT）.show（）; 
} 
 
 public void addPoint（Location location）{
 locations.add（location）; 
 Toast.makeText（getApplicationContext（），addPoint已被调用。，Toast.LENGTH_SHORT）.show（）; 
} 
 
 @Override 
 public void onMapReady（GoogleMap map）{
 this.map = map; 
 
 distanceTraveled = 0; 
 
 Criteria criteria = new Criteria（）; 
 criteria.setAccuracy（Criteria.ACCURACY_FINE）; 
 criteria.setBearingRequired（true）; 
 criteria.setCostAllowed（true）; 
 criteria.setPowerRequirement（Criteria.POWER_LOW）; 
 criteria.setAltitudeRequired（false）; 
 
 Toast.makeText（getApplicationContext（），onMapReady被调用。，Toast.LENGTH_SHORT）.show（）; 
 
 PowerManager powerManager =（PowerManager）getSystemService（Context.POWER_SERVICE）; 
 wakeLock = powerManager.newWakeLock（PowerManager.PARTIAL_WAKE_LOCK，NO Sleep）; 
 wakeLock.acquire（）; 
 if（！mGoogleApiClient.isConnected（））{
 mGoogleApiClient.connect（）; 
} 
 
 tracking = true; 
 startTime = System.currentTimeMillis（）; 
 //Toast.makeText（getApplicationContext（），onMapReady！中的mGoogleApiClient.connect（）调用，Toast.LENGTH_SHORT）.show（）; 
 // LatLng sydney = new LatLng（-34，151）; 
 //map.addMarker（new MarkerOptions（）。position（sydney）.title（悉尼标记））; 
 //map.moveCamera(CameraUpdateFactory.newLatLng(sydney））; 
 mapIsReady = true; 
 
 
 $ b protected void updateLocation（Location location）{
 Toast.makeText（getApplicationContext（），updateLocation method called。，Toast.LENGTH_SHORT）.show （）; 
 if（location！= null&& gpsFix == true）{
 addPoint（location）; 
 
 if（previousLocation！= null）
 distanceTraveled + = location.distanceTo（previousLocation）; 
} 
 
 if（map！= null& mapIsReady == true）{
 Toast.makeText（getApplicationContext（），got last last location ... mLastlocation displayed ！，Toast.LENGTH_SHORT）.show（）; 
 LatLng newPosition = new LatLng（location.getLatitude（），location.getLongitude（））; 
 map.addMarker（new MarkerOptions（）。position（newPosition）.title（newPosition））; 
 map.moveCamera（CameraUpdateFactory.newLatLng（newPosition））; 
 locations.add（mLastLocation）; 
} 
 
 previousLocation = location; 
} 
 $ b $ public void draw（）{
 Toast.makeText（getApplicationContext（），Draw method called。，Toast.LENGTH_SHORT）.show（）; 
 if（map == null）{
 return; 
} 
 
 PolylineOptions选项=新的PolylineOptions（）; 
 
 options.color（Color.parseColor（＃CC0000FF））; 
 options.width（5）; 
 options.visible（true）; （位置locRecorded：locations）
 
 {
 options.add（new LatLng（locRecorded.getLatitude（），
 locRecorded.getLongitude（）））; 
 Toast.makeText（getApplicationContext（），draw method got new location！，Toast.LENGTH_SHORT）.show（）; 
 
 
} 
 
 map.addPolyline（options）; 
 
 
 @Override 
 public void onConnectionFailed（@NonNull ConnectionResult connectionResult）{
 Toast.makeText（getApplicationContext（），mGoogleApiClient连接失败，Toast.LENGTH_SHORT）.show（）; 
} 
}


In the following code the content of my if(map!=null && mapIsReady==true) {...} in my updateLocation method is never called. Any idea why?

package com.noureddine_ouertani.www.wocelli50;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.PowerManager;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.widget.Toast;

import com.google.android.gms.appindexing.Action;
import com.google.android.gms.appindexing.AppIndex;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.gms.maps.model.PolylineOptions;

import java.util.ArrayList;
import java.util.List;

public class NeueRouteAufzeichnen extends FragmentActivity implements OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {

private LocationManager locationManager;
private Location mLastLocation;
private Location previousLocation;
private long distanceTraveled;

private boolean tracking = false;
private long startTime;
private PowerManager.WakeLock wakeLock;
private boolean gpsFix;

private static final double MILLISECONDS_PER_HOUR = 100 * 60 * 60;
private static final double MILES_PER_KILOMETER = 0.621371192;
private static final int MAP_ZOOM = 18;

private List<Location> locations;

private GoogleApiClient mGoogleApiClient;

GoogleMap map;
LatLng myPosition;
boolean mapIsReady = false;

com.google.android.gms.location.LocationListener mlocationListener = new com.google.android.gms.location.LocationListener() {
    @Override
    public void onLocationChanged(Location location) {

        updateLocation(location);
    }

};

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (mGoogleApiClient == null) {
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .addApi(AppIndex.API).build();
    }
    setContentView(R.layout.activity_neue_route_aufzeichnen);
    SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
            .findFragmentById(R.id.map);
    mapFragment.getMapAsync(this);
    locations = new ArrayList<Location>();

    }

protected void onStart() {
    mGoogleApiClient.connect();
    super.onStart();
    // ATTENTION: This was auto-generated to implement the App Indexing API.
    // See https://g.co/AppIndexing/AndroidStudio for more information.
    Action viewAction = Action.newAction(
            Action.TYPE_VIEW, // TODO: choose an action type.
            "NeueRouteAufzeichnen Page", // TODO: Define a title for the content shown.
            // TODO: If you have web page content that matches this app activity's content,
            // make sure this auto-generated web page URL is correct.
            // Otherwise, set the URL to null.
            Uri.parse("http://host/path"),
            // TODO: Make sure this auto-generated app URL is correct.
            Uri.parse("android-app://com.noureddine_ouertani.www.wocelli50/http/host/path")
    );
    AppIndex.AppIndexApi.start(mGoogleApiClient, viewAction);
}

protected void onStop() {
    mGoogleApiClient.disconnect();
    super.onStop();
    // ATTENTION: This was auto-generated to implement the App Indexing API.
    // See https://g.co/AppIndexing/AndroidStudio for more information.
    Action viewAction = Action.newAction(
            Action.TYPE_VIEW, // TODO: choose an action type.
            "NeueRouteAufzeichnen Page", // TODO: Define a title for the content shown.
            // TODO: If you have web page content that matches this app activity's content,
            // make sure this auto-generated web page URL is correct.
            // Otherwise, set the URL to null.
            Uri.parse("http://host/path"),
            // TODO: Make sure this auto-generated app URL is correct.
            Uri.parse("android-app://com.noureddine_ouertani.www.wocelli50/http/host/path")
    );
    AppIndex.AppIndexApi.end(mGoogleApiClient, viewAction);
}

@Override
public void onConnected(Bundle connectionHint) {
    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
        Toast.makeText(getApplicationContext(), "Permissions missing for mGoogleApiClient.", Toast.LENGTH_SHORT).show();
    }
    Toast.makeText(getApplicationContext(), "mGoogleApiClient is connected.", Toast.LENGTH_SHORT).show();
    mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
    if(mLastLocation!=null){
        Toast.makeText(getApplicationContext(), "YES! mLastLocation!=null", Toast.LENGTH_SHORT).show();

    }
}

@Override
public void onConnectionSuspended(int i) {
    Toast.makeText(getApplicationContext(), "Connection of mGoogleApiClient is suspended.", Toast.LENGTH_SHORT).show();
}

public void addPoint(Location location) {
    locations.add(location);
    Toast.makeText(getApplicationContext(), "addPoint has been called.", Toast.LENGTH_SHORT).show();
}

@Override
public void onMapReady(GoogleMap map) {

    distanceTraveled = 0;

    Criteria criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_FINE);
    criteria.setBearingRequired(true);
    criteria.setCostAllowed(true);
    criteria.setPowerRequirement(Criteria.POWER_LOW);
    criteria.setAltitudeRequired(false);
    locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);

        Toast.makeText(getApplicationContext(), "onMapReady is called.", Toast.LENGTH_SHORT).show();
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            float LOCATION_REFRESH_DISTANCE = 5000;
            long LOCATION_REFRESH_TIME = 0;
            locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, LOCATION_REFRESH_TIME, LOCATION_REFRESH_DISTANCE, (LocationListener) mlocationListener);
        }

        PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
        wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "NO Sleep");
        wakeLock.acquire();
        if (!mGoogleApiClient.isConnected()) {
            mGoogleApiClient.connect();
        }

        tracking = true;
        startTime = System.currentTimeMillis();
        //Toast.makeText(getApplicationContext(), " mGoogleApiClient.connect()call from onMapReady!", Toast.LENGTH_SHORT).show();
        //LatLng sydney = new LatLng(-34, 151);
        //map.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
        //map.moveCamera(CameraUpdateFactory.newLatLng(sydney));
        mapIsReady = true;

}


protected void updateLocation(Location location) {
    Toast.makeText(getApplicationContext(), "updateLocation method called.", Toast.LENGTH_SHORT).show();
    if (location != null && gpsFix == true) {
        addPoint(location);

        if (previousLocation != null)
            distanceTraveled += location.distanceTo(previousLocation);
    }

    if(map!=null && mapIsReady==true) {
        Toast.makeText(getApplicationContext(), " got last location ... mLastlocation displayed!", Toast.LENGTH_SHORT).show();
        LatLng newPosition = new LatLng(location.getLatitude(), location.getLongitude());
        map.addMarker(new MarkerOptions().position(newPosition).title("newPosition"));
        map.moveCamera(CameraUpdateFactory.newLatLng(newPosition));
        locations.add(mLastLocation);
    }

    previousLocation = location;
}

public void draw() {
    Toast.makeText(getApplicationContext(), "Draw method called.", Toast.LENGTH_SHORT).show();
    if (map == null) {
        return;
    }

    PolylineOptions options = new PolylineOptions();

    options.color(Color.parseColor("#CC0000FF"));
    options.width(5);
    options.visible(true);

    for (Location locRecorded : locations) {
        options.add(new LatLng(locRecorded.getLatitude(),
                locRecorded.getLongitude()));
        Toast.makeText(getApplicationContext(), "draw method got new location!", Toast.LENGTH_SHORT).show();



    }

    map.addPolyline(options);

}

@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
    Toast.makeText(getApplicationContext(), "Connection of mGoogleApiClient failed.", Toast.LENGTH_SHORT).show();
}


}

I get the following map (with no marker)

PS: I still don't call my draw() method.

and I get this log error that you see.

After reading some posts and answers (e.g. this or this) about this log error I thought that I figured out that it's a known Google Play Services version 9.0.83 issue that causes bugs in some apps that use a GoogleApiClient like mine.

I tried to fix this by:1. Downgrading Google Play Services Manually 2. Adapting dependencies after downgrading Google Play Sevices

But this didn't solve the problem.

PS: Here is my XML

<fragment 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:id="@+id/map"
tools:context=".NeueRouteAufzeichnen"
android:name="com.google.android.gms.maps.SupportMapFragment" />
解决方案

As you are using FusedLocationApi, you can request location updates as explained here: https://developer.android.com/training/location/receive-location-updates.html

You also need to add this.map = map; in your onMapReady.

In your example:

public class NeueRouteAufzeichnen extends FragmentActivity implements OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {

    private Location mLastLocation;
    private Location previousLocation;
    private long distanceTraveled;

    private boolean tracking = false;
    private long startTime;
    private PowerManager.WakeLock wakeLock;
    private boolean gpsFix;

    private static final double MILLISECONDS_PER_HOUR = 100 * 60 * 60;
    private static final double MILES_PER_KILOMETER = 0.621371192;
    private static final int MAP_ZOOM = 18;

    private List<Location> locations;

    private GoogleApiClient mGoogleApiClient;

    GoogleMap map;
    LatLng myPosition;
    boolean mapIsReady = false;

    LocationRequest mLocationRequest;

    com.google.android.gms.location.LocationListener mlocationListener = new com.google.android.gms.location.LocationListener() {
        @Override
        public void onLocationChanged(Location location) {
            updateLocation(location);
        }
    };

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (mGoogleApiClient == null) {
            mGoogleApiClient = new GoogleApiClient.Builder(this)
                    .addConnectionCallbacks(this)
                    .addOnConnectionFailedListener(this)
                    .addApi(LocationServices.API)
                    .addApi(AppIndex.API).build();
        }
        setContentView(R.layout.activity_neue_route_aufzeichnen);
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
        locations = new ArrayList<Location>();
    }

    protected void onStart() {
        mGoogleApiClient.connect();
        super.onStart();
        // ATTENTION: This was auto-generated to implement the App Indexing API.
        // See https://g.co/AppIndexing/AndroidStudio for more information.
        Action viewAction = Action.newAction(
                Action.TYPE_VIEW, // TODO: choose an action type.
                "NeueRouteAufzeichnen Page", // TODO: Define a title for the content shown.
                // TODO: If you have web page content that matches this app activity's content,
                // make sure this auto-generated web page URL is correct.
                // Otherwise, set the URL to null.
                Uri.parse("http://host/path"),
                // TODO: Make sure this auto-generated app URL is correct.
                Uri.parse("android-app://com.noureddine_ouertani.www.wocelli50/http/host/path")
        );
        AppIndex.AppIndexApi.start(mGoogleApiClient, viewAction);
    }

    protected void onStop() {
        mGoogleApiClient.disconnect();
        super.onStop();
        // ATTENTION: This was auto-generated to implement the App Indexing API.
        // See https://g.co/AppIndexing/AndroidStudio for more information.
        Action viewAction = Action.newAction(
                Action.TYPE_VIEW, // TODO: choose an action type.
                "NeueRouteAufzeichnen Page", // TODO: Define a title for the content shown.
                // TODO: If you have web page content that matches this app activity's content,
                // make sure this auto-generated web page URL is correct.
                // Otherwise, set the URL to null.
                Uri.parse("http://host/path"),
                // TODO: Make sure this auto-generated app URL is correct.
                Uri.parse("android-app://com.noureddine_ouertani.www.wocelli50/http/host/path")
        );
        AppIndex.AppIndexApi.end(mGoogleApiClient, viewAction);
    }

    @Override
    public void onConnected(Bundle connectionHint) {
        if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            Toast.makeText(getApplicationContext(), "Permissions missing for mGoogleApiClient.", Toast.LENGTH_SHORT).show();
        }
        Toast.makeText(getApplicationContext(), "mGoogleApiClient is connected.", Toast.LENGTH_SHORT).show();
        mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
        if (mLastLocation != null) {
            Toast.makeText(getApplicationContext(), "YES! mLastLocation!=null", Toast.LENGTH_SHORT).show();
        }

        mLocationRequest = LocationRequest.create();
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        mLocationRequest.setInterval(1000); // 1 SECOND
        mLocationRequest.setFastestInterval(1000); // 1 SECOND
        LocationServices.FusedLocationApi.requestLocationUpdates(
                mGoogleApiClient, mLocationRequest, mlocationListener);
    }

    @Override
    public void onConnectionSuspended(int i) {
        Toast.makeText(getApplicationContext(), "Connection of mGoogleApiClient is suspended.", Toast.LENGTH_SHORT).show();
    }

    public void addPoint(Location location) {
        locations.add(location);
        Toast.makeText(getApplicationContext(), "addPoint has been called.", Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onMapReady(GoogleMap map) {
        this.map = map;

        distanceTraveled = 0;

        Criteria criteria = new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        criteria.setBearingRequired(true);
        criteria.setCostAllowed(true);
        criteria.setPowerRequirement(Criteria.POWER_LOW);
        criteria.setAltitudeRequired(false);

        Toast.makeText(getApplicationContext(), "onMapReady is called.", Toast.LENGTH_SHORT).show();

        PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
        wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "NO Sleep");
        wakeLock.acquire();
        if (!mGoogleApiClient.isConnected()) {
            mGoogleApiClient.connect();
        }

        tracking = true;
        startTime = System.currentTimeMillis();
        //Toast.makeText(getApplicationContext(), " mGoogleApiClient.connect()call from onMapReady!", Toast.LENGTH_SHORT).show();
        //LatLng sydney = new LatLng(-34, 151);
        //map.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
        //map.moveCamera(CameraUpdateFactory.newLatLng(sydney));
        mapIsReady = true;

    }

    protected void updateLocation(Location location) {
        Toast.makeText(getApplicationContext(), "updateLocation method called.", Toast.LENGTH_SHORT).show();
        if (location != null && gpsFix == true) {
            addPoint(location);

            if (previousLocation != null)
                distanceTraveled += location.distanceTo(previousLocation);
        }

        if (map != null && mapIsReady == true) {
            Toast.makeText(getApplicationContext(), " got last location ... mLastlocation displayed!", Toast.LENGTH_SHORT).show();
            LatLng newPosition = new LatLng(location.getLatitude(), location.getLongitude());
            map.addMarker(new MarkerOptions().position(newPosition).title("newPosition"));
            map.moveCamera(CameraUpdateFactory.newLatLng(newPosition));
            locations.add(mLastLocation);
        }

        previousLocation = location;
    }

    public void draw() {
        Toast.makeText(getApplicationContext(), "Draw method called.", Toast.LENGTH_SHORT).show();
        if (map == null) {
            return;
        }

        PolylineOptions options = new PolylineOptions();

        options.color(Color.parseColor("#CC0000FF"));
        options.width(5);
        options.visible(true);

        for (Location locRecorded : locations) {
            options.add(new LatLng(locRecorded.getLatitude(),
                    locRecorded.getLongitude()));
            Toast.makeText(getApplicationContext(), "draw method got new location!", Toast.LENGTH_SHORT).show();


        }

        map.addPolyline(options);

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        Toast.makeText(getApplicationContext(), "Connection of mGoogleApiClient failed.", Toast.LENGTH_SHORT).show();
    }
}

这篇关于使用Google Play服务版本9.0.83进行路线跟踪活动时，地图上没有显示标记的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！

10-30 14:21
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