获取手机所在经纬度

「爱情、让人受尽委屈。」 2022-09-05 00:21 168阅读 0赞

首先在AndroidManifest.xml中设置访问权限

<uses-permission android:name="android.permission.ACCESS\_FINE\_LOCATION"/>

<uses-permission android:name="android.permission.ACCESS\_COARSE\_LOCATION"/>

基本代码

//获取位置对象
        private Location getLastKnownLocation() {
            //获取地理位置管理器
            LocationManager mLocationManager = (LocationManager) getApplicationContext().getSystemService(LOCATION_SERVICE);
            if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
                    && ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                // TODO:去请求权限后再获取
                return null;
            }
            List<String> providers = mLocationManager.getProviders(true);
            Location bestLocation = null;
            for (String provider : providers) {
                Location l = mLocationManager.getLastKnownLocation(provider);
                if (l == null) {
                    continue;
                }
                if (bestLocation == null || l.getAccuracy() < bestLocation.getAccuracy()) {
                    bestLocation = l;
                }
            }
    // 在一些手机5.0(api21)获取为空后，采用下面去兼容获取。
            if (bestLocation==null){
                Criteria criteria = new Criteria();
                criteria.setAccuracy(Criteria.ACCURACY_COARSE);
                criteria.setAltitudeRequired(false);
                criteria.setBearingRequired(false);
                criteria.setCostAllowed(true);
                criteria.setPowerRequirement(Criteria.POWER_LOW);
                String provider = mLocationManager.getBestProvider(criteria, true);
                if (!TextUtils.isEmpty(provider)){
                    bestLocation = mLocationManager.getLastKnownLocation(provider);
                }
            }
            return bestLocation;
        }

函数调用

// 使用
    Location location = getLastKnownLocation();
    if(location==null) {
        edtReturn.setText("请打开'App测试'的位置信息访问权限");
        return ;
    }
    double lat = location.getLatitude();//获取纬度
    double lng = location.getLongitude();//获取经度