这与虚拟设备上的Google Play服务相关。解决方法是使用API25和版本7.1.1。
以下是示例:
当我在Genymotion上尝试运行虚拟设备时,如果安装了Google Play服务(错误:服务不可用):
10-07 07:13:30.023 3481-3481/com.unalfaruk.mapexample I/System.out: Your Location: 65.96992333333333 -18.540028333333332
10-07 07:13:30.023 3481-3481/com.unalfaruk.mapexample W/System.err: java.io.IOException: Service not Available
10-07 07:13:30.024 3481-3481/com.unalfaruk.mapexample W/System.err: at android.location.Geocoder.getFromLocation(Geocoder.java:136)
10-07 07:13:30.024 3481-3481/com.unalfaruk.mapexample W/System.err: at com.unalfaruk.mapexample.MapsActivity$1.onLocationChanged(MapsActivity.java:71)
10-07 07:13:30.024 3481-3481/com.unalfaruk.mapexample W/System.err: at android.location.LocationManager$ListenerTransport._handleMessage(LocationManager.java:297)
![enter image description here](https://istack.dev59.com/U6SIl.webp)
当我尝试启用Genymotion和Google Play服务时(错误:grpc失败):
10-07 07:18:56.325 2694-2694/com.unalfaruk.mapexample I/System.out: Your Location: 65.96669666666666 -15.0
10-07 07:18:57.670 2694-2694/com.unalfaruk.mapexample W/System.err: java.io.IOException: grpc failed
10-07 07:18:57.670 2694-2694/com.unalfaruk.mapexample W/System.err: at android.location.Geocoder.getFromLocation(Geocoder.java:136)
10-07 07:18:57.670 2694-2694/com.unalfaruk.mapexample W/System.err: at com.unalfaruk.mapexample.MapsActivity$1.onLocationChanged(MapsActivity.java:71)
10-07 07:18:57.670 2694-2694/com.unalfaruk.mapexample W/System.err: at android.location.LocationManager$ListenerTransport._handleMessage(LocationManager.java:297)
![enter image description here](https://istack.dev59.com/c1Dd4.webp)
当我尝试启用AVD管理器和Google Play服务时(没有错误):
10-07 14:20:14.769 3159-3159/com.unalfaruk.mapexample I/System.out: Your Location: 37.421998333333335 -122.08400000000002
10-07 14:20:15.220 3159-3159/com.unalfaruk.mapexample I/System.out: Your Adress: Address[addressLines=[0:"1600 Amphitheatre Parkway",1:"Mountain View, CA 94043",2:"USA"],feature=1600,admin=California,sub-admin=null,locality=Mountain View,thoroughfare=Amphitheatre Parkway,postalCode=94043,countryCode=US,countryName=United States,hasLatitude=true,latitude=37.422329,hasLongitude=true,longitude=-122.0843055,phone=null,url=null,extras=null]
![enter image description here](https://istack.dev59.com/7gZa8.webp)