Android的Location功能代碼

此代碼為Location功能的簡單封裝。

package arui.csdn.net;

1. import static Android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS;
2. import android.app.Activity;
3. import android.content.Context;
4. import android.content.Intent;
5. import android.location.Location;
6. import android.location.LocationListener;
7. import android.location.LocationManager;
8. import android.os.Bundle;
10. public class LocationUtil {
12. public static boolean isEnabled(Context context) {
13. LocationManager mLocationManager = (LocationManager) context
14. .getSystemService(Context.LOCATION_SERVICE);
15. if (mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
16. return true;
17. }
18. if (mLocationManager
19. .isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
20. return true;
21. }
22. return false;
23. }
25. public static void startLocationService(Context context) {
26. LocationManager mLocationManager = (LocationManager) context
27. .getSystemService(Context.LOCATION_SERVICE);
28. mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
29. 1000L, 10, mLocationListener);
30. mLocationManager.requestLocationUpdates(
31. LocationManager.NETWORK_PROVIDER, 1000L, 10,
32. mLocationListener);
33. }
35. public static void stopLocationService(Context context) {
36. LocationManager mLocationManager = (LocationManager) context
37. .getSystemService(Context.LOCATION_SERVICE);
38. mLocationManager.removeUpdates(mLocationListener);
39. }
41. public static Location getLocationByGPS(Context context) {
42. LocationManager mLocationManager = (LocationManager) context
43. .getSystemService(Context.LOCATION_SERVICE);
44. Location location = mLocationManager
45. .getLastKnownLocation(LocationManager.GPS_PROVIDER);
46. return location;
47. }
49. public static Location getLocationByNetwork(Context context) {
50. LocationManager mLocationManager = (LocationManager) context
51. .getSystemService(Context.LOCATION_SERVICE);
52. Location location = mLocationManager
53. .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
54. return location;
55. }
57. public static void openLocationSetting(Activity act, int requestCode) {
58. act.startActivityForResult(new Intent(ACTION_LOCATION_SOURCE_SETTINGS),
59. requestCode);
60. }
62. private static final LocationListener mLocationListener = new LocationListener() {
64. public void onLocationChanged(Location location) {
65. // 當坐標改變時觸發此函數，如果Provider傳進相同的坐標，它就不會被觸發
66. System.out.println("onLocationChanged:" + location.getLatitude());
67. }
69. public void onProviderDisabled(String provider) {
70. // Provider被disable時觸發此函數，比如GPS被關閉
71. System.out.println("onProviderDisabled:" + provider);
72. }
74. public void onProviderEnabled(String provider) {
75. // Provider被enable時觸發此函數，比如GPS被打開
76. System.out.println("onProviderEnabled:" + provider);
77. }
79. public void onStatusChanged(String provider, int status, Bundle extras) {
80. // Provider的轉態在可用、暫時不可用和無服務三個狀態直接切換時觸發此函數
81. System.out.println("onStatusChanged:" + status);
82. }
83. };
84. }

需要增加權限：

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

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