百度地图开发

首先要集成百度地图所需要的包，
在mainfest设置权限
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.SEND_SMS" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" >
</uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
</uses-permission>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" >
</uses-permission>
<uses-permission android:name="android.permission.READ_PHONE_STATE" >
</uses-permission>
实现通过两个类，一个BaiduMapActivity ，打开百度地图，一个图标类
package com.example.twtje0304.baidumapactivity;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import java.util.List;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.view.Window;
import com.*;
import com.baidu.mapapi.BMapManager;
import com.baidu.mapapi.GeoPoint;
import com.baidu.mapapi.MapActivity;
import com.baidu.mapapi.MapController;
import com.baidu.mapapi.MapView;
import com.baidu.mapapi.Overlay;
/**
 * @author zhangzhibing
 */
public class BaiduMapActivity extends MapActivity {
    /** Called when the activity is first created. */
    private MapView bmapsView;
    private Bitmap posBitmap;
    private BMapManager mBMapMan = null;
    private MapController controller;
    private String location;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        setContentView(R.layout.present_gps);
        mBMapMan = new BMapManager(getApplication());
        
           //13605834F4A4934B09861654E32184A694FC5D0C  是获取的baidu api key，一定要自己获取，别人的不用，一个key只能对应一个apk。
      mBMapMan.init("13605834F4A4934B09861654E32184A694FC5D0C", null);
        super.initMapActivity(mBMapMan);
        location=getIntent().getStringExtra("location");
        posBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pos);
        bmapsView = (MapView) findViewById(R.id.bmapsView);
        controller = bmapsView.getController();
        bmapsView.setBuiltInZoomControls(true);
//        double lng=Double.valueOf(location.split(",")[0]);
//        double lat=Double.valueOf(location.split(",")[1]);
        double lng=112;
        double lat=34;
//lat、lng代表经纬度。
        updateMapView(lat,lng);
    }
    @Override
    protected boolean isRouteDisplayed() {
        // TODO Auto-generated method stub
        return false;
    }
    private void updateMapView(double lng, double lat) {
      
        GeoPoint gp = new GeoPoint((int) (lat * 1E6), (int) (lng * 1E6));
  
        bmapsView.displayZoomControls(true);
      
        controller.animateTo(gp);
     
        controller.setCenter(gp);
        controller.setZoom(12);
      
        List<Overlay> ol = bmapsView.getOverlays();
        
        ol.clear();
      
        ol.add(new PosOverLay(gp, posBitmap));
    }
    @Override
    protected void onDestroy() {
        if (mBMapMan != null) {
            mBMapMan.destroy();
            mBMapMan = null;
        }
        super.onDestroy();
    }
    @Override
    protected void onPause() {
        if (mBMapMan != null) {
            mBMapMan.stop();
        }
        super.onPause();
    }
    @Override
    protected void onResume() {
        if (mBMapMan != null) {
            mBMapMan.start();
        }
        super.onResume();
    }
}
package com.example.twtje0304.baidumapactivity;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Point;
import com.baidu.mapapi.GeoPoint;
import com.baidu.mapapi.MapView;
import com.baidu.mapapi.Overlay;
import com.baidu.mapapi.Projection;
public class PosOverLay extends Overlay {
   Bitmap posBitmap;
   GeoPoint gp;
   public PosOverLay(GeoPoint gp, Bitmap posBitmap) {
      super();
      this.gp = gp;
      this.posBitmap = posBitmap;
   }
   @Override
   public void draw(Canvas canvas, MapView mapView, boolean shadow) {
      if (!shadow) {
         Projection proj = mapView.getProjection();
         Point p = new Point();
         proj.toPixels(gp, p);
         canvas.drawBitmap(posBitmap, p.x - posBitmap.getWidth() / 2, p.y- posBitmap.getHeight(), null);
      }
   }
}