地址查詢Google Map

1.AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.gmapv2"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="15"
        android:targetSdkVersion="15" />

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />

    <uses-feature
        android:glEsVersion="0x00020000"
        android:required="true" />

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

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="Address2Map"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
     
        <meta-data
            android:name="com.google.android.maps.v2.API_KEY"
            android:value="AIzaSyC5wZD4vNgP2Qa2jx7Dgh1aAtEN_jy9JJk" />
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

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


</manifest>

2.addressmap.xml

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

    <LinearLayout      
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">"

        <EditText
            android:id="@+id/etAddr"
            android:layout_width="240sp"
             android:text="台北市中正區公園路30號"
            android:layout_height="wrap_content"
            android:ems="10" >

            <requestFocus />
        </EditText>

        <Button
            android:id="@+id/btnAddr"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Show" />

    </LinearLayout>

    <fragment
        android:id="@+id/addrmap"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        class="com.google.android.gms.maps.MapFragment" />

</LinearLayout>

3.Address2Map.java 

import java.io.IOException;
import java.util.List;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.android.maps.GeoPoint;
import android.app.Activity;
import android.location.Address;
import android.location.Geocoder;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class Address2Map extends Activity {
GeoPoint gp;
Button bt;
EditText et;
private GoogleMap map;

@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.addressmap);
bt = (Button) findViewById(R.id.btnAddr);
et = (EditText) findViewById(R.id.etAddr);
map = ((MapFragment) getFragmentManager()
.findFragmentById(R.id.addrmap)).getMap();
bt.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
getGPFromAddress(et.getText().toString());
LatLng position = null;
try {
position = new LatLng(gp.getLatitudeE6() / 1E6, gp
.getLongitudeE6() / 1E6);
} catch (Exception ex) {
Log.e("Error Line 49", "position error");
return;

}
if (map != null) {
Marker main = map.addMarker(new MarkerOptions()
.position(position)
.title("MainPOS")
.icon(BitmapDescriptorFactory
.fromResource(R.drawable.ic_launcher)));

// Move the camera instantly to TaipeiMainStation with a
// zoom of 15.
map.moveCamera(CameraUpdateFactory.newLatLngZoom(position,
20));

// Zoom in, animating the camera.
map.animateCamera(CameraUpdateFactory.zoomTo(15), 2000,
null);
}
}

});

}

public void getGPFromAddress(String addr) {
if (!addr.equals("")) {
Geocoder geocoder = new Geocoder(this);
List<Address> addresses = null;
Address address = null;
try {
addresses = geocoder.getFromLocationName(addr, 1);

} catch (IOException e) {
Log.e("Error 78", "Error in geocoder");
return;
}
if (addresses == null || addresses.isEmpty()) {
Toast.makeText(this, "找不到該地址", Toast.LENGTH_SHORT).show();
} else {
address = addresses.get(0);
double geoLatitude = address.getLatitude() * 1E6;
double geoLongitude = address.getLongitude() * 1E6;
Log.e("Location",
address.getLatitude() + ":" + address.getLongitude());
gp = new GeoPoint((int) geoLatitude, (int) geoLongitude);

}
} else {
Toast.makeText(this, "未輸入地址", Toast.LENGTH_SHORT).show();
}

}

}