Android uses Baidu lbs sdk (2) for positioning, androidlbs

Android uses Baidu lbs sdk (2) for positioning, androidlbs

Yesterday, I initially contacted Baidu's lbs sdk to allow applications to display maps through MapView. Today, based on yesterday's code, I implemented the following positioning functions:

First, let's take a look:

The buttons in the lower left corner can be switched into three modes:

NORMAL (LocationMode. NORMAL ),

Follow (LocationMode. FOLLOWING ),

I believe that those who have used Baidu map are familiar with these models.

The following code is used:

Declare a MapView and a BaiduMap respectively:

private MapView mMapView;private BaiduMap mBaiduMap;

Initialize the SDK before SetContentView:

SDKInitializer.initialize(getApplicationContext());

How to change the positioning icon:

MCurrentMarker = BitmapDescriptorFactory. fromResource (R. drawable. icon_geo); // custom icon // mCurrentMarker = null; // default icon mBaiduMap. setMyLocationConfigeration (new MyLocationConfiguration (mCurrentMode, true, mCurrentMarker ));

Positioning mode:

private LocationMode mCurrentMode;

MCurrentMode = LocationMode. NORMAL; // NORMAL mode // mCurrentMode = LocationMode. FOLLOWING; // Follow Mode // mCurrentMode = LocationMode. COMPASS; // COMPASS mode mBaiduMap. setMyLocationConfigeration (new MyLocationConfiguration (mCurrentMode, true, mCurrentMarker ));

Initialization:

// Map initialization mMapView = (MapView) findViewById (R. id. bmapView); mBaiduMap = mMapView. getMap (); // enable the position layer mBaiduMap. setMyLocationEnabled (true); // locate initialization mLocClient = new LocationClient (this); mLocClient. registerLocationListener (myListener); LocationClientOption option = new LocationClientOption (); option. setOpenGps (true); // enable gpsoption. setCoorType ("bd09ll"); // sets the coordinate type option. setScanSpan (5000); mLocClient. setLocOption (option); mLocClient. start ();

SetScanSpan is the positioning interval (MS), setCoorType coordinate types are divided into three types:

Bd09ll Baidu encrypted longitude and latitude coordinates

Bd09 Baidu encrypted mocato Coordinate

Gcj02 coordinate of the national test authority to encrypt the longitude and latitude

Find the SDK listening function:

Public class MyLocationListenner implements BDLocationListener {@ Overridepublic void onReceiveLocation (BDLocation location) {// After map view is destroyed, if (location = null | mMapView = null) return; MyLocationData locData = new MyLocationData. builder (). accuracy (location. getRadius () // set the direction information obtained by the developer, clockwise 0-100 ction ). latitude (location. getLatitude ()). longpolling (location. getlongpolling ()). build (); mBaiduMap. setMyLocationData (locData); if (isFirstLoc) {isFirstLoc = false; LatLng ll = new LatLng (location. getLatitude (), location. getlongpolling (); MapStatusUpdate u = MapStatusUpdateFactory. newLatLng (ll); mBaiduMap. animateMapStatus (u) ;}} public void onReceivePoi (BDLocation poiLocation ){}}

Rewrite onPause, onResume, onDestory:

@ Overrideprotected void onPause () {mMapView. onPause (); super. onPause () ;}@ Overrideprotected void onResume () {mMapView. onResume (); super. onResume () ;}@ Overrideprotected void onDestroy () {// destroy the mLocClient when exiting. stop (); // close the position layer mBaiduMap. setMyLocationEnabled (false); mMapView. onDestroy (); mMapView = null; super. onDestroy ();}

Declare the Service in AndroidManifest. xml. This step is critical and cannot be located without writing:

 <service            android:name="com.baidu.location.f"            android:enabled="true"            android:process=":remote" >        </service>

Of course, the Key is also indispensable and must be correct:

        <meta-data            android:name="com.baidu.lbsapi.API_KEY"            android:value="************************" />

Finally, add the required permissions to the AndroidManifest. xml file:

<! -- For BaiduMap sdk start --> <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> <us Es-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 =" andro Id. permission. READ_SMS "/> <uses-permission android: name =" android. permission. SEND_SMS "/> <! -- SDK1.5 requires the permission of android. permission. GET_TASKS to determine whether the program is the currently running application? --> <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"/> <! -- Call cancel --> <uses-permission android: name = "android. permission. process_outgoing_cils "> </uses-permission> <uses-permission android: name =" android. permission. READ_PHONE_STATE "/> <uses-permission android: name =" android. permission. MODIFY_AUDIO_SETTINGS "/> <! -- For BaiduMap sdk end -->

This is all done.

Reprinted please indicate the source: Zhou mu Shui CSDN blog http://blog.csdn.net/zhoumushui

My GitHub: Zhou mu Shui's GitHub https://github.com/zhoumushui