android定位个人当前位置

废话不多说,直接进入代码块:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />

<TextView
android:id="@+id/longitude"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="longitude:"
/>
<TextView
android:id="@+id/latitude"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="latitude:"
/>
<TextView
android:id="@+id/address"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>

</LinearLayout>

清单文件( <uses-library android:name="com.google.android.maps" />
) 中最重要的代码

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="cn.com"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="7" />

<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".TestAddresActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>

<uses-library android:name="com.google.android.maps" />
</application>

<uses-sdk android:minSdkVersion="8" />

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

</manifest>

java代码:

package cn.com;

import java.util.List;
import java.util.Locale;

import com.google.android.maps.GeoPoint;

import android.app.Activity;
import android.content.Context;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class TestAddresActivity extends Activity {

private TextView longitude;
private TextView latitude;
private TextView address;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

longitude = (TextView) findViewById(R.id.longitude);
latitude = (TextView) findViewById(R.id.latitude);
address = (TextView) findViewById(R.id.address);

Location mLocation = getLocation(this);
GeoPoint gp = getGeoByLocation(mLocation);
Address mAddress = getAddressbyGeoPoint(this, gp);

longitude.setText("Longitude: " + mLocation.getLongitude());
latitude.setText("Latitude: " + mLocation.getLatitude());
address.setText("Address: " + mAddress.getCountryName() + ","
+ mAddress.getLocality() + "," + mAddress.getThoroughfare());

}

// Get the Location by GPS or WIFI
public Location getLocation(Context context) {
LocationManager locMan = (LocationManager) context
.getSystemService(Context.LOCATION_SERVICE);
Location location = locMan
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location == null) {
location = locMan
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}
return location;
}

// 通过Location获取GeoPoint
public GeoPoint getGeoByLocation(Location location) {
GeoPoint gp = null;
try {
if (location != null) {
double geoLatitude = location.getLatitude() * 1E6;
double geoLongitude = location.getLongitude() * 1E6;
gp = new GeoPoint((int) geoLatitude, (int) geoLongitude);
}
} catch (Exception e) {
e.printStackTrace();
}
return gp;
}

// 通过GeoPoint来获取Address
public Address getAddressbyGeoPoint(Context cntext, GeoPoint gp) {
Address result = null;
try {
if (gp == null) {
Toast.makeText(getApplicationContext(), "抱歉,暂未获取到信息", 1).show();
}
if (gp != null) {
Geocoder gc = new Geocoder(cntext, Locale.CHINA);

double geoLatitude = (int) gp.getLatitudeE6() / 1E6;
double geoLongitude = (int) gp.getLongitudeE6() / 1E6;

List<Address> lstAddress = gc.getFromLocation(geoLatitude,
geoLongitude, 1);
if (lstAddress.size() > 0) {
result = lstAddress.get(0);
}
}
} catch (Exception e) {
e.printStackTrace();

}
return result;
}

}

注意: 若在模拟器上运行,必须在DDMS上send 经纬度.