Android的Location功能代码

来源：互联网发布：首富隆起知乎编辑：程序博客网时间：2024/06/06 01:49

import static android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;

public class LocationUtil {

    public static boolean isEnabled(Context context) {
        LocationManager mLocationManager = (LocationManager) context
                .getSystemService(Context.LOCATION_SERVICE);
        if (mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            return true;
        }
        if (mLocationManager
                .isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
            return true;
        }
        return false;
    }

    public static void startLocationService(Context context) {
        LocationManager mLocationManager = (LocationManager) context
                .getSystemService(Context.LOCATION_SERVICE);
        mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
                1000L, 10, mLocationListener);
        mLocationManager.requestLocationUpdates(
                LocationManager.NETWORK_PROVIDER, 1000L, 10,
                mLocationListener);
    }

    public static void stopLocationService(Context context) {
        LocationManager mLocationManager = (LocationManager) context
                .getSystemService(Context.LOCATION_SERVICE);
        mLocationManager.removeUpdates(mLocationListener);
    }

    public static Location getLocationByGPS(Context context) {
        LocationManager mLocationManager = (LocationManager) context
                .getSystemService(Context.LOCATION_SERVICE);
        Location location = mLocationManager
                .getLastKnownLocation(LocationManager.GPS_PROVIDER);
        return location;
    }

    public static Location getLocationByNetwork(Context context) {
        LocationManager mLocationManager = (LocationManager) context
                .getSystemService(Context.LOCATION_SERVICE);
        Location location = mLocationManager
                .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        return location;
    }

    public static void openLocationSetting(Activity act, int requestCode) {
        act.startActivityForResult(new Intent(ACTION_LOCATION_SOURCE_SETTINGS),
                requestCode);
    }

    private static final LocationListener mLocationListener = new LocationListener() {

        public void onLocationChanged(Location location) {
            // 当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
            System.out.println("onLocationChanged:" + location.getLatitude());
        }

        public void onProviderDisabled(String provider) {
            // Provider被disable时触发此函数，比如GPS被关闭
            System.out.println("onProviderDisabled:" + provider);
        }

        public void onProviderEnabled(String provider) {
            // Provider被enable时触发此函数，比如GPS被打开
            System.out.println("onProviderEnabled:" + provider);
        }

        public void onStatusChanged(String provider, int status, Bundle extras) {
            // Provider的转态在可用、暂时不可用和无服务三个状态直接切换时触发此函数
            System.out.println("onStatusChanged:" + status);
        }
    };
}

需要增加权限：
<uses-permission
android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission
android:name="android.permission.ACCESS_COARSE_LOCATION" />