利用百度地图sdk定位 要注意的

最近有个小项目需要进行一些定位的操作，找来找去，觉得百度做的还是比较好的。

就记录一点，

MainActivity.java

public class MainActivity extends Activity {

	public LocationClient mLocationClient = null;
	public LocationClientOption option;

	public BDLocationListener myListener = new BDLocationListener() {
		
		@Override
		public void onReceiveLocation(BDLocation arg0) {
			// TODO Auto-generated method stub
			Toast.makeText(MainActivity.this,"地址："+ arg0.getAddrStr()+"--"+arg0.getCity()+"--"+arg0.getLatitude()+"---"+arg0, Toast.LENGTH_LONG).show();
		}
	};

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		 mLocationClient = new LocationClient(getApplicationContext());     //声明LocationClient类
		 option=new LocationClientOption();
		 option.setLocationMode(LocationMode.Hight_Accuracy);//设置定位模式
		 option.setCoorType("bd09ll");//返回的定位结果是百度经纬度,默认值gcj02
		 option.setScanSpan(5000);//设置发起定位请求的间隔时间为5000ms
		 option.setIsNeedAddress(true);//返回的定位结果包含地址信息
		 option.setNeedDeviceDirect(true);//返回的定位结果包含手机机头的方向
		 option.setAddrType("all");
		 mLocationClient.setLocOption(option);
		 mLocationClient.registerLocationListener( myListener );    //注册监听函数
		 
	}

	public void getLocation(View view){
			mLocationClient.start();
	}
}

mainfest.xml

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

     <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />

  <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_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>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
    </uses-permission>
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" >
    </uses-permission>
    <uses-permission android:name="android.permission.READ_LOGS" >
    </uses-permission>
    <uses-permission android:name="android.permission.VIBRATE" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="android.permission.WRITE_SETTINGS" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        
         <service
            android:name="com.baidu.location.f"
            android:enabled="true"
            android:process=":remote" >
            <intent-filter>
                <action android:name="com.baidu.location.service_v2.2" >
                </action>
            </intent-filter>
        </service>

        <!-- meta-data需要写在application中 -->
        <meta-data
            android:name="com.baidu.lbsapi.API_KEY"
            android:value="............." />//自己的key
        
        
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

</manifest>

一开始没有设置locationClientOption导致使用location.getAddrStr()的时候获取的结果都是null。

没有设置的话，所有文字的结果都是null。。记住这一点就行。其他按着配置就行。