Android LocationManager

获取位置(LocationManager):

1. 需要申请权限

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

2. 代码

   public class TestgpsActivity extends Activity {
       private LocationManager lm;
       private MyListener listener;
   
       @Override
       public void onCreate(Bundle savedInstanceState) {
           super.onCreate(savedInstanceState);
           setContentView(R.layout.main);
           lm = (LocationManager) getSystemService(LOCATION_SERVICE);
   
           Criteria criteria = new Criteria();
           criteria.setAccuracy(Criteria.ACCURACY_FINE);
           criteria.setCostAllowed(true);
           criteria.setPowerRequirement(Criteria.POWER_HIGH);
           criteria.setSpeedRequired(true);
           String provider = lm.getBestProvider(criteria, true);
           //第一个参数 位置提供者 第二个参数 最短更新时间 第三参数 最短的更新的距离
           listener = new MyListener();
           lm.requestLocationUpdates(provider, 0, 0, listener);
   
       }
       @Override
       protected void onDestroy() {
           lm.removeUpdates(listener);
           super.onDestroy();
       }
   
       private class MyListener implements LocationListener{
   
           /**
            * 当位置改变的时候
            */
           @Override
           public void onLocationChanged(Location location) {
               float accuracy = location.getAccuracy();
               double wlong = location.getLatitude(); //纬度
               double jlong = location.getLongitude(); //经度
   
               TextView tv = new TextView(getApplicationContext());
               tv.setText("经度:"+jlong+"\n"+"纬度:"+wlong+"\n"+ accuracy);
               setContentView(tv);
   
           }
           /**
            * 某一个位置提供者的状态发生改变的时候调用的方法
            */
           @Override
           public void onStatusChanged(String provider, int status, Bundle extras) {
   
           }
   
           @Override
           public void onProviderEnabled(String provider) {
   
           }
   
           @Override
           public void onProviderDisabled(String provider) {
   
           }
       }
   }