Android範例(2) GPS

package com.kent.gps;

import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.TextView;

public class GpsTestActivity extends Activity implements LocationListener { 
private LocationManager mLocationManager;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);     
setContentView(R.layout.main);
mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
mLocationManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0, 0, this);
TextView mTextView00 = (TextView)findViewById(R.id.TextView00);  
mTextView00.setText("GPS Information");
}

@Override 
public void onResume(){
if (mLocationManager != null) {

}               
super.onResume();
}

@Override    
protected void onPause() {        
if (mLocationManager != null) {            
mLocationManager.removeUpdates((LocationListener) this);        
}                
super.onPause();    
}  

public void onLocationChanged(Location location) {        
TextView mTextView01 = (TextView)findViewById(R.id.TextView01);
TextView mTextView02 = (TextView)findViewById(R.id.TextView02);
TextView mTextView03 = (TextView)findViewById(R.id.TextView03);
TextView mTextView04 = (TextView)findViewById(R.id.TextView04);
TextView mTextView05 = (TextView)findViewById(R.id.TextView05);
TextView mTextView06 = (TextView)findViewById(R.id.TextView06);
TextView mTextView07 = (TextView)findViewById(R.id.TextView07);
mTextView01.setText("Latitude：  " + String.valueOf(location.getLatitude()));
mTextView02.setText("Longitude：  " + String.valueOf(location.getLongitude()));
mTextView03.setText("Accuracy：  " + String.valueOf(location.getAccuracy()));
mTextView04.setText("Latitude：  " + String.valueOf(location.getAltitude()));
mTextView05.setText("Time：  " + String.valueOf(location.getTime()));
mTextView06.setText("Speed：  " + String.valueOf(location.getSpeed()));
mTextView07.setText("Bearing：  " + String.valueOf(location.getBearing()));   
}

public void onProviderDisabled(String provider) {

}
public void onProviderEnabled(String provider) {

}
public void onStatusChanged(String provider, int status, Bundle extras) {

}   
}