根据百度地图API得到坐标和地址并在地图上显示

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="100dip"
        android:background="@android:color/white"
        android:orientation="vertical" >
        <TextView
            android:id="@+id/textview_location_latitude_degree"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@android:color/black"
            android:textStyle="bold"
            android:text="location" />
        <TextView
            android:id="@+id/textview_location_longitude_degree"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@android:color/black"
            android:textStyle="bold"
            android:text="location" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:layout_marginTop="30dip" >
         <com.baidu.mapapi.MapView
            android:id="@+id/bmapView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:clickable="true" />
     </LinearLayout>

</LinearLayout>

BMapApiDemoApp.java

package com.example.textdemo4;

import android.app.Application;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.BMapManager;
import com.baidu.mapapi.MKEvent;
import com.baidu.mapapi.MKGeneralListener;

public class BMapApiDemoApp extends Application {

    public LocationClient mLocationClient = null;
    public String mData;
    public String address;
    public MyLocationListenner myListener = new MyLocationListenner();
    public TextView mTv;
    public TextView mAddress;

    /*private static LocationApplication instance;
    public static LocationApplication getInstance() {
        return instance;
    }*/

    static BMapApiDemoApp mDemoApp;
    private static BMapApiDemoApp instance;

    public static BMapApiDemoApp getInstance() {
        return instance;
    }

    BMapManager mBMapMan = null;  //百度MapAPI的管理类

    // 授权Key
    // 申请地址：http://developer.baidu.com/map/android-mobile-apply-key.htm
    String mStrKey = "F7A0CB2F6BA513A57031EEBEBE99BEC0B9A36434";
    boolean m_bKeyRight = true;    // 授权Key正确，验证通过

    // 常用事件监听，用来处理通常的网络错误，授权验证错误等
    static class MyGeneralListener implements MKGeneralListener {
        @Override
        public void onGetNetworkState(int iError) {
            Log.d("MyGeneralListener", "onGetNetworkState error is "+ iError);
            Toast.makeText(BMapApiDemoApp.mDemoApp.getApplicationContext(), "您的网络出错啦！",
                    Toast.LENGTH_LONG).show();
        }

        @Override
        public void onGetPermissionState(int iError) {
            Log.d("MyGeneralListener", "onGetPermissionState error is "+ iError);
            if (iError ==  MKEvent.ERROR_PERMISSION_DENIED) {
                // 授权Key错误：
                Toast.makeText(BMapApiDemoApp.mDemoApp.getApplicationContext(),
                        "请在BMapApiDemoApp.java文件输入正确的授权Key！",
                        Toast.LENGTH_LONG).show();
                BMapApiDemoApp.mDemoApp.m_bKeyRight = false;
            }
        }

    }

    @Override
    public void onCreate() {
        Log.v("BMapApiDemoApp", "onCreate");
        mDemoApp = this;
        mBMapMan = new BMapManager(this);
        boolean isSuccess = mBMapMan.init(this.mStrKey, new MyGeneralListener());
        // 初始化地图sdk成功，设置定位监听时间
        if (isSuccess) {
            mBMapMan.getLocationManager().setNotifyInternal(10, 5);
        }
        else {
            // 地图sdk初始化失败，不能使用sdk
        }

        //----------------------
        instance = this;
        mLocationClient = new LocationClient(getApplicationContext());
        mLocationClient.registerLocationListener(myListener);
        setLocationOption();
        //----------------------
        super.onCreate();
    }

    @Override
    //建议在您app的退出之前调用mapadpi的destroy()函数，避免重复初始化带来的时间消耗
    public void onTerminate() {
        if (mBMapMan != null) {
            mBMapMan.destroy();
            mBMapMan = null;
        }
        super.onTerminate();
    }

    // 设置相关参数
    public void setLocationOption() {
        LocationClientOption option = new LocationClientOption();
        option.setProdName("Compass");
        option.setOpenGps(true); // 打开gps
        option.setCoorType("bd09ll");
        option.setAddrType("all");
        option.setScanSpan(5 * 60 * 1000);
        option.setPriority(LocationClientOption.NetWorkFirst);
        mLocationClient.setLocOption(option);
    }

    /**
     *监听函数，又新位置的时候，格式化成字符串，输出到屏幕中
     */
    public class MyLocationListenner implements BDLocationListener {

        @Override
        public void onReceiveLocation(BDLocation location) {
            // TODO Auto-generated method stub
            if (location == null)
                return;
            StringBuffer sb = new StringBuffer(256);
            // sb.append("时间: ");
            // sb.append(location.getTime());
            sb.append("纬度 : ");
            sb.append(location.getLatitude() + "°");
            sb.append(", 经度 : ");
            sb.append(location.getLongitude() + "°");
//            sb.append(", 精度 : ");
//            sb.append(location.getRadius() + " 米");
            mData = sb.toString();
            if(mTv != null) mTv.setText(sb);

            if (location.getLocType() == BDLocation.TypeGpsLocation) {
                address = "速度 : " + location.getSpeed();
            } else if (location.getLocType() == BDLocation.TypeNetWorkLocation) {
                address = "地址 : " + location.getAddrStr();
            }
            if(mAddress !=null) mAddress.setText(address);
        }

        @Override
        public void onReceivePoi(BDLocation poiLocation) {

        }

    }

}

MainActivity.java

package com.example.textdemo4;

import com.baidu.mapapi.BMapManager;
import com.baidu.mapapi.GeoPoint;
import com.baidu.mapapi.LocationListener;
import com.baidu.mapapi.MapActivity;
import com.baidu.mapapi.MapView;
import com.baidu.mapapi.MyLocationOverlay;
import android.location.Location;
import android.os.Bundle;
import android.widget.TextView;

public class MainActivity extends MapActivity {

    BMapApiDemoApp application;
    TextView mLatitudeTV;// 纬度
    TextView mLongitudeTV;// 经度

    MapView mMapView = null;
    LocationListener mLocationListener = null;
    MyLocationOverlay mLocationOverlay = null;    //定位图层

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        application = (BMapApiDemoApp) getApplication();

        setContentView(R.layout.activity_main);
        mLongitudeTV = (TextView) findViewById(R.id.textview_location_longitude_degree);
        mLatitudeTV = (TextView) findViewById(R.id.textview_location_latitude_degree);

        application.mTv = mLatitudeTV;
        application.mAddress = mLongitudeTV;
        application.mLocationClient.start();

        //========================
        BMapApiDemoApp app = (BMapApiDemoApp)this.getApplication();
        if (app.mBMapMan == null) {
            app.mBMapMan = new BMapManager(getApplication());
            app.mBMapMan.init(app.mStrKey, new BMapApiDemoApp.MyGeneralListener());
        }
        app.mBMapMan.start();
        // 如果使用地图SDK，请初始化地图Activity
        this.initMapActivity(app.mBMapMan);

        mMapView = (MapView)findViewById(R.id.bmapView);
        mMapView.setBuiltInZoomControls(true);
        //设置在缩放动画过程中也显示overlay,默认为不绘制
        mMapView.setDrawOverlayWhenZooming(true);

        // 添加定位图层
        mLocationOverlay = new MyLocationOverlay(this, mMapView);
        mMapView.getOverlays().add(mLocationOverlay);

        // 注册定位事件
        mLocationListener = new LocationListener(){
            @Override
            public void onLocationChanged(Location location) {
                if (location != null){
                    GeoPoint pt = new GeoPoint((int)(location.getLatitude()*1e6),
                            (int)(location.getLongitude()*1e6));
                    mMapView.getController().animateTo(pt);
                }
            }
        };
    }

    @Override
    protected void onPause() {
        BMapApiDemoApp app = (BMapApiDemoApp)this.getApplication();
        app.mBMapMan.getLocationManager().removeUpdates(mLocationListener);
        mLocationOverlay.disableMyLocation();
        mLocationOverlay.disableCompass(); // 关闭指南针
        app.mBMapMan.stop();
        super.onPause();
    }

    @Override
    protected void onResume() {
        BMapApiDemoApp app = (BMapApiDemoApp)this.getApplication();
        // 注册定位事件，定位后将地图移动到定位点
        app.mBMapMan.getLocationManager().requestLocationUpdates(mLocationListener);
        mLocationOverlay.enableMyLocation();
        mLocationOverlay.enableCompass(); // 打开指南针
        app.mBMapMan.start();
        super.onResume();
    }

    @Override
    protected boolean isRouteDisplayed() {
        // TODO Auto-generated method stub
        return false;
    }

}

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.textdemo4"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />
    <!-- 访问网络的权限 -->
    <uses-permission android:name="android.permission.INTERNET" />
    <!-- 访问精确位置的权限 -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <!-- 访问网络状态的权限 -->
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <!-- 访问WIFI网络状态的权限 -->
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <!-- 改变WIFI网络状态的权限 -->
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
    <!-- 读写存储卡的权限 -->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <!-- 读取电话状态的权限 -->
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.CALL_PHONE" />

    <supports-screens
        android:anyDensity="true"
        android:largeScreens="true"
        android:normalScreens="false"
        android:resizeable="true"
        android:smallScreens="true" />

    <application  android:name=".BMapApiDemoApp"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/title_activity_main"
            android:screenOrientation="sensor" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <service
            android:name="com.baidu.location.f"
            android:enabled="true"
            android:process=":remote" />

    </application>

</manifest>

完整DEMO下载地址：http://download.csdn.net/detail/androidsj/5868395