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;  
9.   
10. public class LocationUtil {  
11.   
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.     }  
24.   
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.     }  
34.   
35.     public static void stopLocationService(Context context) {  
36.         LocationManager mLocationManager = (LocationManager) context  
37.                 .getSystemService(Context.LOCATION_SERVICE);  
38.         mLocationManager.removeUpdates(mLocationListener);  
39.     }  
40.   
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.     }  
48.   
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.     }  
56.   
57.     public static void openLocationSetting(Activity act, int requestCode) {  
58.         act.startActivityForResult(new Intent(ACTION_LOCATION_SOURCE_SETTINGS),  
59.                 requestCode);  
60.     }  
61.   
62.     private static final LocationListener mLocationListener = new LocationListener() {  
63.   
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.         }  
68.   
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.         }  
73.   
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.         }  
78.   
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" />