android 模拟器上GPS的使用

Java代码：

package test.GPS;

import android.app.Activity;
import android.content.Context;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class TestGPSActivity extends Activity
{
private static final String TAG = "GPSTestActivity";
private Location preLocation;
private long preTime;
private static final int step = 2000; // msecs
private LocationManager locationManager;
private boolean status = false;
private Button btn;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Log.i(TAG, "onCreate(Bundle savedInstanceState)");
btn = (Button) findViewById(R.id.beginBtn);
btn.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
if (!status)
{
status = true;
startLoactionService();
btn.setText("点击这里停止");
}
else
{
status = false;
stopLocationService();
btn.setText("点击这里开始");
}
}
});
}

public void startLoactionService()
{
String serviceName = Context.LOCATION_SERVICE;
locationManager = (LocationManager) getSystemService(serviceName);
// String provider = LocationManager.GPS_PROVIDER;
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(false);
criteria.setBearingRequired(false);
criteria.setCostAllowed(true);
criteria.setPowerRequirement(Criteria.POWER_LOW);
String provider = locationManager.getBestProvider(criteria, true);
Log.i(TAG, "we choose:"+provider);
Location location = locationManager.getLastKnownLocation(provider);
Log.i(TAG, "we :"+location);
preTime = System.currentTimeMillis();
updateWithNewLocation(location);
locationManager.requestLocationUpdates(provider, step, 0,
locationListener);
}

public void stopLocationService()
{
if (locationManager != null)
{
locationManager.removeUpdates(locationListener);
}
}

private final LocationListener locationListener = new LocationListener()
{
public void onLocationChanged(Location location)
{
Log.i(TAG, "onLocationChanged(Location location)");
updateWithNewLocation(location);
}

public void onProviderDisabled(String provider)
{
updateWithNewLocation(null);
}

public void onProviderEnabled(String provider)
{
}

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

private void updateWithNewLocation(Location location)
{
Log.i(TAG, "updateWithNewLocation(Location location)");
String latLongString;
TextView myLocationText;
myLocationText = (TextView) findViewById(R.id.result);
if (location != null)
{
double lat = location.getLatitude();
double lng = location.getLongitude();
long subTime = (System.currentTimeMillis() - preTime) / 1000;
float v = (subTime == 0 || preLocation == null) ? 0 : (preLocation
.distanceTo(location) / subTime);
latLongString = "纬度:" + lat + " 经度:" + lng + " 速度:" + v + " m/s , "
+ v * 3.6 + " km/h";
preLocation = location;
preTime = System.currentTimeMillis();
}
else
{
latLongString = "无法获取地理信息";
}
myLocationText.setText(System.currentTimeMillis() + ": "
+ latLongString);
}
}

xml代码：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button
android:id="@+id/beginBtn"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="start"
/>
<TextView
android:id="@+id/result"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="data"
/>
</LinearLayout>

加上权限：

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

GPS数据模拟方法：

打开DDMS视图，找到Emulator Control，在Manual里面选择Sexagesimal,输入Longitude和Latitude，点击Send.至此完成测试.