Android获取当前城市名称

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参考：残缺的孤独
txxs

不需要导入百度地图的SDK，利用手机自带的定位，获取当前的经纬度，然后调用百度地图的地址，返回的为json数据

{
status: "OK",
result: {
location: {
lng: 118.776047,
lat: 31.965235
},
formatted_address: "江苏省南京市雨花台区龙西路",
business: "铁心桥",
addressComponent: {
city: "南京市",
direction: "",
distance: "",
district: "雨花台区",
province: "江苏省",
street: "龙西路",
street_number: ""
},
cityCode: 315
}
}

//wd 纬度 
//jd 经度
   public void updateVersion(String wd, String jd) {
        String path = "http://api.map.baidu.com/geocoder?output=json&location=" + wd + "," + jd + "&key="这里为你的百度地图的key";
        OkHttpUtils
                .get()
                .url(path)
                .build()
                .execute(new StringCallback() {
                    @Override
                    public void onError(Call arg0, Exception arg1, int arg2) {
                    }

                    @Override
                    public void onResponse(String arg0, int arg1) {
                        Gson gson = new Gson();
                        City response = gson.fromJson(arg0, City.class);
                        CMLog.d(TAG, arg0);
                        if (response.getStatus().equals("OK")) {
                            CMLog.d("地址为", response.getResult().getAddressComponent().getCity());
                        }
                    }

                });
    }


    public void getLocation() {
        String locationProvider;
        //获取地理位置管理器
        LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        //获取所有可用的位置提供器
        List<String> providers = locationManager.getProviders(true);
        if (providers.contains(LocationManager.GPS_PROVIDER)) {
            //如果是GPS
            locationProvider = LocationManager.GPS_PROVIDER;
        } else if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
            //如果是Network
            locationProvider = LocationManager.NETWORK_PROVIDER;
        } else {
            Toast.makeText(this, "没有可用的位置提供器", Toast.LENGTH_SHORT).show();
            return;
        }
        //获取Location
        Location location = locationManager.getLastKnownLocation(locationProvider);
        if (location != null) {
            //不为空,显示地理位置经纬度
            showLocation(location);
        }
        //监视地理位置变化
        locationManager.requestLocationUpdates(locationProvider, 3000, 1, locationListener);
    }

    /**
     * 显示地理位置经度和纬度信息
     *
     * @param location
     */
    private void showLocation(Location location) {
        String locationStr = "纬度：" + location.getLatitude() + "\n"
                + "经度：" + location.getLongitude();
        updateVersion(location.getLatitude() + "", location.getLongitude() + "");
    }

    /**
     * LocationListern监听器
     * 参数：地理位置提供器、监听位置变化的时间间隔、位置变化的距离间隔、LocationListener监听器
     */

    LocationListener locationListener = new LocationListener() {

        @Override
        public void onStatusChanged(String provider, int status, Bundle arg2) {

        }

        @Override
        public void onProviderEnabled(String provider) {

        }

        @Override
        public void onProviderDisabled(String provider) {

        }

        @Override
        public void onLocationChanged(Location location) {
            //如果位置发生变化,重新显示
            showLocation(location);
        }
    };

注意：别忘了加上权限

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>  
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />  
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>