android googleMap demo

demo运行前请确保安装了GoogleAPI的android插件，（请采用GoogleAPI模式）

package com.royal.googleMap;

import java.util.List;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Point;
import android.os.Bundle;

import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;

public class GoogleMapDemoActivity extends MapActivity {

	private MapView mapView;
	private GeoPoint geoPoint;
	private MapController mapController;

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

		mapView = (MapView) findViewById(R.id.map_view);
//		mapView = new MapView(this,"05RuQFhSv2zb5X5u91S0hcsIdcVwFNfwrE__18w");

		// 设置为交通模式
		// mapView.setTraffic(true);
		// 设置为卫星模式
//		mapView.setSatellite(true);
		// 设置为街景模式
		 mapView.setStreetView(true);

		// 取得MapController对象（控制MapView）
		mapController = mapView.getController();
		mapView.setEnabled(true);
		mapView.setClickable(true);

		// 设置地图支持缩放
		mapView.setBuiltInZoomControls(true);

		// 设置起点
		geoPoint = new GeoPoint((int) (22.744680959764427 * 1000000),
				(int) (113.59523713588715 * 1000000));
		
		// 定位
		mapController.animateTo(geoPoint);
		// 设置倍数（1-21）
		mapController.setZoom(12);

		// 添加Overlay,用于显示标注信息
		MyLocationOverlay myLocationOverlay = new MyLocationOverlay();
		List<Overlay> list = mapView.getOverlays();
		list.add(myLocationOverlay);

	}

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

	/**
	 * 绘图类
	 * @author Royal
	 *
	 */
	class MyLocationOverlay extends Overlay {

		@Override
		public boolean draw(Canvas canvas, MapView mapView, boolean shadow,
				long when) {
			// TODO Auto-generated method stub
			super.draw(canvas, mapView, shadow);
			Paint paint = new Paint();
			Point myScreenCoords = new Point();
			// 将经纬度转换成实际屏幕坐标
			mapView.getProjection().toPixels(geoPoint, myScreenCoords);
			paint.setStrokeWidth(1);
			paint.setARGB(255, 255, 0, 0);
			paint.setStyle(Paint.Style.STROKE);
			Bitmap bmp = BitmapFactory.decodeResource(getResources(),
					R.drawable.home);
			canvas.drawBitmap(bmp, myScreenCoords.x, myScreenCoords.y, paint);
			canvas.drawText("Here am I", myScreenCoords.x, myScreenCoords.y, paint);
			return true;
		}

	}

}

 

AndroidManifest.xml

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

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

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        
        <!-- 声明适用Google Map API -->
        <uses-library android:name="com.google.android.maps"/>
        
        <activity
            android:label="@string/app_name"
            android:name=".GoogleMapDemoActivity" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
    
    <uses-permission android:name="android.permission.INTERNET"/>
</manifest>