Android入門之簡單GPS定位實例

Android入門之簡單GPS定位實例

添加權限：android.permission.ACCESS_FINE_LOCATION

1. import android.app.Activity;
2. import android.content.Context;
3. import android.location.*;
4. import android.os.*;
5. import android.widget.*;
7. public class GPSTest extends Activity {
9. private LinearLayout mainView=null;
10. private TextView infoView=null;
11. private TextView locationView=null;
13. private LocationManager locationManager=null;
14. private LocationListener locationListener=null;
16. public void onCreate(Bundle savedInstanceState) {
17. super.onCreate(savedInstanceState);
18. mainView=new LinearLayout(this);
19. mainView.setOrientation(LinearLayout.VERTICAL);
20. infoView=new TextView(this);
21. mainView.addView(infoView);
22. locationView=new TextView(this);
23. mainView.addView(locationView);
24. setContentView(mainView);
25. locationManager_init();
26. }
27. /*locationManager初始化*/
28. void locationManager_init(){
29. locationManager =(LocationManager)this.getSystemService(Context.LOCATION_SERVICE);
30. locationListener_init();
31. locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,1000,0, locationListener);
32. }
33. /*locatonListener初始化*/
34. void locationListener_init(){
35. locationListener=new LocationListener(){
36. //位置變化時觸發
37. public void onLocationChanged(Location location) {
38. locationView.setText("時間："+location.getTime()+"\n");
39. locationView.append("經度："+location.getLongitude()+"\n");
40. locationView.append("緯度："+location.getLatitude()+"\n");
41. locationView.append("海拔："+location.getAltitude()+"\n");
42. }
43. //gps禁用時觸發
44. public void onProviderDisabled(String provider) {
45. infoView.setText("當前GPS狀態：禁用\n");
46. }
47. //gps開啟時觸發
48. public void onProviderEnabled(String provider) {
49. infoView.setText("當前GPS狀態：開啟\n");
50. }
51. //gps狀態變化時觸發
52. public void onStatusChanged(String provider, int status,Bundle extras) {
53. if(status==LocationProvider.AVAILABLE){
54. infoView.setText("當前GPS狀態：可見的\n");
55. }else if(status==LocationProvider.OUT_OF_SERVICE){
56. infoView.setText("當前GPS狀態：服務區外\n");
57. }else if(status==LocationProvider.TEMPORARILY_UNAVAILABLE){
58. infoView.setText("當前GPS狀態：暫停服務\n");
59. }
60. }
61. };
62. }
63. }