GoogleMap(通过输入地址,查询显示在google 地图上)

主Activity:

package net.blogjava.mobile.map;

import java.util.List;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Point;
import android.location.Address;
import android.location.Geocoder;
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 Main extends MapActivity {
	private MapController mapController;
	private GeoPoint geoPoint;
	List<Address> addresses;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);

		// 用于显示地图的一个ViewGroup
		MapView mapView = (MapView) findViewById(R.id.mapview);

		// 使得这个View可以获得点击事件
		mapView.setClickable(true);

		// 设置是否可以进行自动缩放控制
		mapView.setBuiltInZoomControls(true);

		// 获取控制缩放的操作对象
		mapController = mapView.getController();

		// 通过系统默认区域设置进行地图定位
		Geocoder gc = new Geocoder(this);
		// mapView.setTraffic(true);
		// mapView.setSatellite(true);
		mapView.setStreetView(true);

		try {
			// 通过地址名称描述返回一个查询结果的数组(后面参数为返回最大结果数)
			addresses = gc.getFromLocationName("荆州市江陵中学", 5);

			// 如果未查询到任何结果
			if (addresses != null) {
				geoPoint = new GeoPoint(
				// 返回纬度,经度
						(int) (addresses.get(0).getLatitude() * 1E6),
						(int) (addresses.get(0).getLongitude() * 1E6));

				setTitle(addresses.get(0).getFeatureName());
				MyOverlay myOverlay = new MyOverlay();
				mapView.getOverlays().add(myOverlay);
				mapController.setZoom(20);
				mapController.animateTo(geoPoint);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}


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

	class MyOverlay extends Overlay {

		@Override
		public boolean draw(Canvas canvas, MapView mapView, boolean shadow,
				long when) {
			Paint paint = new Paint();
			paint.setColor(Color.RED);
			Point screenPoint = new Point();
			mapView.getProjection().toPixels(geoPoint, screenPoint);
			Bitmap bmp = BitmapFactory.decodeResource(getResources(),
					R.drawable.flag);
			canvas.drawBitmap(bmp, screenPoint.x, screenPoint.y, paint);
			canvas.drawText(addresses.get(0).getFeatureName().toString(),
					screenPoint.x, screenPoint.y, paint);
			return super.draw(canvas, mapView, shadow, when);
		}

	}

}

配置文件:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
	package="net.blogjava.mobile.map" android:versionCode="1"
	android:versionName="1.0">
	<application android:icon="@drawable/icon" android:label="@string/app_name">
		<activity android:name=".Main" 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="3" />
	<uses-permission android:name="android.permission.INTERNET" />
</manifest> 

main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
	android:orientation="vertical" android:layout_width="fill_parent"
	android:layout_height="fill_parent">
	<com.google.android.maps.MapView
		android:id="@+id/mapview" android:layout_width="fill_parent"
		android:layout_height="fill_parent" 
		android:apiKey="0y_0zdWEE7Cd9rf2h8PcSNl2itJSrEaOMLSIJ1g" />
</LinearLayout>

评论

4 楼 linmeboss 2011-03-11  

大哥 我把你的源码运行下 怎么结果不对啊

3 楼 edison_cool911 2011-03-11  

需要自己签名的apkkey的,自己申请个了在试下...[

2 楼 dh1314al 2011-03-11  

楼主你的湖北荆州人？我也是荆州人,哈哈！博客写的很好,收~藏~了！

1 楼 蓝月儿 2011-01-12  

怎么没有图标显示地址呢