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[Android开发]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) {
    }
    }
    }
    

炫意HTML5 » [Android开发]Android LocationManager

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