获取当前位置并利用百度地图显示

根据百度提示的demo，将其manifest.xml中的内容参考而来：

AndroidManifest.xml:

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

    <uses-sdk
        android:minSdkVersion="7"
        android:targetSdkVersion="10" />

    <application
        android:name="com.example.demobaidumaps.BaiduDemoApp"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <meta-data
            android:name="com.baidu.lbsapi.API_KEY"
            android:value="your key" />

        <activity
            android:name="com.example.demobaidumaps.MainActivity"
            android:configChanges="orientation|keyboardHidden"
            android:screenOrientation="portrait"
            android:label="BaiduMapSDKDemo" >
            <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" >
        </service>
    </application>

    <permission android:name="android.permission.BAIDU_LOCATION_SERVICE" >
    </permission>

    <uses-permission android:name="android.permission.BAIDU_LOCATION_SERVICE" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" >
    </uses-permission>
    <uses-permission android:name="android.permission.INTERNET" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" >
    </uses-permission>
    <!-- <uses-permission android:name="android.permission.WRITE_APN_SETTINGS"></uses-permission> -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" >
    </uses-permission>
    <uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />
    <uses-permission android:name="android.permission.WAKE_LOCK" >
    </uses-permission>
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_GPS" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.READ_SMS" />
    <uses-permission android:name="android.permission.SEND_SMS" />
    <!-- SDK1.5需要android.permission.GET_TASKS权限判断本程序是否为当前运行的应用? -->
    <uses-permission android:name="android.permission.GET_TASKS" />
    <uses-permission android:name="android.permission.CAMERA" >
    </uses-permission>
    <uses-permission android:name="android.permission.RECORD_AUDIO" >
    </uses-permission>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
    </uses-permission>
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
    <uses-permission android:name="android.permission.BROADCAST_STICKY" />
    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
    <!-- 来电消音 -->
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" >
    </uses-permission>
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />

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

</manifest>

全局Application:

BaiduDemoApp.java:

package com.example.demobaidumaps;

import android.app.Application;

import com.baidu.mapapi.SDKInitializer;

public class BaiduDemoApp extends Application{
	
	
	
	public void onCreate(){
		super.onCreate();
		
		SDKInitializer.initialize(this);
//		setContentView(R.layout.activity_main);
	}

}

获取　经纬度并加载地图：

MainActivity.java：

package com.example.demobaidumaps;

import android.app.Activity;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;

import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.BaiduMapOptions;
import com.baidu.mapapi.map.MapStatus;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.model.LatLng;

public class MainActivity extends Activity {
	MapView mMapView = null;
	private BaiduMap mBaiduMap;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		
		LocationManager manager = (LocationManager)getSystemService(LOCATION_SERVICE);
		manager.requestLocationUpdates(LocationManager.GPS_PROVIDER,10000,2,new LocationListener(){

			@Override
			public void onLocationChanged(Location arg0) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void onProviderDisabled(String arg0) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void onProviderEnabled(String arg0) {
				// TODO Auto-generated method stub
				
			}

			@Override
			public void onStatusChanged(String arg0, int arg1, Bundle arg2) {
				// TODO Auto-generated method stub
				
			}
			
		});
		
		Location location = manager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
		LatLng p = null;
		if(location!=null){
			p = new LatLng(location.getLatitude(),location.getLongitude());
			mMapView = new MapView(this,
					new BaiduMapOptions().mapStatus(new MapStatus.Builder()
							.target(p).build()));
		}else{
			p = new LatLng(24.88,118.67);
			mMapView = mMapView = new MapView(this, new BaiduMapOptions());
		}
		
		//p = new LatLng(24.885845140427213,118.67264333192573);
		
		setContentView(mMapView);
		mBaiduMap = mMapView.getMap();
	}

	@Override
	protected void onDestroy() {
		super.onDestroy();
		// 在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理
		mMapView.onDestroy();
	}

	@Override
	protected void onResume() {
		super.onResume();
		// 在activity执行onResume时执行mMapView. onResume ()，实现地图生命周期管理
		mMapView.onResume();
	}

	@Override
	protected void onPause() {
		super.onPause();
		// 在activity执行onPause时执行mMapView. onPause ()，实现地图生命周期管理
		mMapView.onPause();
	}
}

另：

原本是参照百度的文档中的helloworld　Demo进行实验：

即　http://developer.baidu.com/map/index.php?title=androidsdk/guide/hellobaidumap

发现，mapView用写在xml后加载时，程序运行后会报错：

12-02 22:11:19.381: E/AndroidRuntime(1192): FATAL EXCEPTION: main
12-02 22:11:19.381: E/AndroidRuntime(1192): java.lang.NoClassDefFoundError: com.baidu.mapapi.SDKInitializer
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at com.example.demobaidumaps.MainActivity.onCreate(MainActivity.java:27)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at android.app.Activity.performCreate(Activity.java:5008)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at android.app.ActivityThread.access$600(ActivityThread.java:130)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at android.os.Handler.dispatchMessage(Handler.java:99)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at android.os.Looper.loop(Looper.java:137)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at android.app.ActivityThread.main(ActivityThread.java:4745)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at java.lang.reflect.Method.invokeNative(Native Method)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at java.lang.reflect.Method.invoke(Method.java:511)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
12-02 22:11:19.381: E/AndroidRuntime(1192): 	at dalvik.system.NativeStart.main(Native Method)

不知道为什么。

所以，在以后的开发中，就不会再参照此方法了。

其他人有遇到相同问题的，可以用我上面使用的代码。