package com.action.android_test;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.TextView;
public class MainActivity extends Activity {
private Location location=null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//获得位置服务的名称
String serviceName = this.LOCATION_SERVICE;
//获得位置服务的管理对象
LocationManager locationManager = (LocationManager)getSystemService(serviceName);
// 通过GPS获取定位的位置数据
location = locationManager.getLastKnownLocation(locationManager.GPS_PROVIDER);
updateToNewLocation(location);
/**服务管理对象的监听器*/
//参数1：定位的方式 参数2：监听更新间隔时间(ms) 参数3：监听更新的距离(m) 参数4：监听的方法
locationManager.requestLocationUpdates(locationManager.GPS_PROVIDER, 2000, 10, new LocationListener() {
public void onStatusChanged(String provider, int status, Bundle extras) {
}
public void onProviderEnabled(String provider) {
}
public void onProviderDisabled(String provider) {
}
public void onLocationChanged(Location location) {
updateToNewLocation(location);
}
});
}
private void updateToNewLocation(Location location) {
TextView tv1;
tv1 = (TextView) this.findViewById(R.id.tv1);
if (location != null) {
double latitude = location.getLatitude();
double longitude= location.getLongitude();
tv1.setText("经纬度为：n"+"维度：" + latitude+ "n经度" + longitude);
} else {
tv1.setText("无法获取地理信息");
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
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