前言
百度地图的定位功能和基础地图功能是分开的,使用的是另外的jar包和so库文件,详情请关注官网:
百度定位SDK
配置
下载对应的jar包和so库,然后移动到lib目录下
AS中注意事项
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| sourceSets { main { jniLibs.srcDirs = ['libs'] } }
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在application标签中声明service组件,每个app拥有自己单独的定位service
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| <service android:name="com.baidu.location.f" android:enabled="true" android:process=":remote"> </service>
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这个很重要 ,不要以为和基础地图的使用方式相同就忽略了对定位SDK配置官方说明的阅读
声明使用权限
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| <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>
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注意事项:
在Android6.0也就是M版本的手机上实现Demo时,由于M版本Google引入了动态权限分配的机制,如果没有在代码中申请权限,默认权限是不会被打开的,作为调试的注意事项,你需要到设置中手动的为Demo程序打开权限,方便定位能够正确的进行。
AK配置
参照基础地图使用的AK配置即可
Demo实现
布局文件
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| <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context="mapdemo.example.com.selfbaidumap.MainActivity">
<LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <EditText android:layout_weight="3" android:layout_width="wrap_content" android:layout_height="match_parent" android:id="@+id/et_locationresult"/> <Button android:layout_weight="1" android:layout_width="wrap_content" android:layout_height="match_parent" android:id="@+id/bt_locate" android:text="定位"/> </LinearLayout> <com.baidu.mapapi.map.MapView android:id="@+id/bmapView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:clickable="true" />
</LinearLayout>
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代码实现
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| public class MainActivity extends AppCompatActivity { private MapView bmapView; private BitmapDescriptor bitmap = null; private BaiduMap mBaiduMap = null; private LocationClient mLocationClient = null; private BDLocationListener myListener = new MyLocationListener();
private EditText editTextLocationResult; private Button doLocateButton;
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
SDKInitializer.initialize(getApplicationContext()); setContentView(R.layout.activity_main);
bmapView = (MapView) findViewById(R.id.bmapView); mBaiduMap = bmapView.getMap(); mBaiduMap.setOnMarkerClickListener(new BaiduMap.OnMarkerClickListener() { @Override public boolean onMarkerClick(Marker marker) { if (marker.getExtraInfo() != null) { Bundle bundle = marker.getExtraInfo(); LatLng latlng = bundle.getParcelable("LatLng"); String address = bundle.getString("ADDRESS"); TextView tv = new TextView(MainActivity.this); tv.setBackgroundResource(R.drawable.marker_info_bg); tv.setTextColor(Color.WHITE); tv.setText(address); InfoWindow info = new InfoWindow(tv, latlng, -47); mBaiduMap.showInfoWindow(info); } return false; } });
doLocateButton = (Button) findViewById(R.id.bt_locate); doLocateButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { startLocate(); } }); editTextLocationResult = (EditText) findViewById(R.id.et_locationresult); bitmap = BitmapDescriptorFactory .fromResource(R.drawable.icon_gcoding); mLocationClient = new LocationClient(getApplicationContext()); mLocationClient.registerLocationListener(myListener); initLocation(); }
private void initLocation() { LocationClientOption option = new LocationClientOption(); option.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy ); option.setCoorType("bd09ll"); int span = 1000; option.setScanSpan(span); option.setIsNeedAddress(true); option.setOpenGps(true); option.setLocationNotify(true); option.setIsNeedLocationDescribe(true); option.setIsNeedLocationPoiList(true); option.setIgnoreKillProcess(false); option.SetIgnoreCacheException(false); option.setEnableSimulateGps(false); mLocationClient.setLocOption(option); }
private void startLocate() { if (mLocationClient != null) { mLocationClient.start(); } }
@Override protected void onResume() { if (bmapView != null) { bmapView.onResume(); } super.onResume(); }
@Override protected void onPause() { if (bmapView != null) { bmapView.onPause(); } super.onPause(); }
@Override protected void onDestroy() { if (bmapView != null) { bmapView.onDestroy(); } if (bitmap != null) { bitmap.recycle(); } super.onDestroy(); } public class MyLocationListener implements BDLocationListener { @Override public void onReceiveLocation(BDLocation location) { StringBuffer sb = new StringBuffer(256); sb.append("time : "); sb.append(location.getTime()); sb.append("\nerror code : "); sb.append(location.getLocType()); sb.append("\nlatitude : "); sb.append(location.getLatitude()); sb.append("\nlontitude : "); sb.append(location.getLongitude()); sb.append("\nradius : "); sb.append(location.getRadius()); if (location.getLocType() == BDLocation.TypeGpsLocation) { sb.append("\nspeed : "); sb.append(location.getSpeed()); sb.append("\nsatellite : "); sb.append(location.getSatelliteNumber()); sb.append("\nheight : "); sb.append(location.getAltitude()); sb.append("\ndirection : "); sb.append(location.getDirection()); sb.append("\naddr : "); sb.append(location.getAddrStr()); sb.append("\ndescribe : "); sb.append("gps定位成功");
} else if (location.getLocType() == BDLocation.TypeNetWorkLocation) { sb.append("\naddr : "); sb.append(location.getAddrStr()); sb.append("\noperationers : "); sb.append(location.getOperators()); sb.append("\ndescribe : "); sb.append("网络定位成功"); } else if (location.getLocType() == BDLocation.TypeOffLineLocation) { sb.append("\ndescribe : "); sb.append("离线定位成功,离线定位结果也是有效的"); } else if (location.getLocType() == BDLocation.TypeServerError) { sb.append("\ndescribe : "); sb.append("服务端网络定位失败,可以反馈IMEI号和大体定位时间到loc-bugs@baidu.com,会有人追查原因"); } else if (location.getLocType() == BDLocation.TypeNetWorkException) { sb.append("\ndescribe : "); sb.append("网络不同导致定位失败,请检查网络是否通畅"); } else if (location.getLocType() == BDLocation.TypeCriteriaException) { sb.append("\ndescribe : "); sb.append("无法获取有效定位依据导致定位失败,一般是由于手机的原因,处于飞行模式下一般会造成这种结果,可以试着重启手机"); } sb.append("\nlocationdescribe : "); sb.append(location.getLocationDescribe()); List<Poi> list = location.getPoiList(); if (list != null) { sb.append("\npoilist size = : "); sb.append(list.size()); for (Poi p : list) { sb.append("\npoi= : "); sb.append(p.getId() + " " + p.getName() + " " + p.getRank()); } } Log.i("BaiduLocationApiDem", sb.toString()); editTextLocationResult.setText(location.getAddrStr()); addMark(location.getLatitude(), location.getLongitude(), location.getAddrStr()); mLocationClient.stop(); } }
private void addMark(double latitude, double longitude, String address) { LatLng latlng = new LatLng(latitude, longitude); Bundle bundle = new Bundle(); bundle.putString("ADDRESS", address); bundle.putParcelable("LatLng", latlng); OverlayOptions option = new MarkerOptions().icon(bitmap).extraInfo(bundle).position(latlng); if (mBaiduMap != null) { mBaiduMap.addOverlay(option); mBaiduMap.setMapStatus(MapStatusUpdateFactory.newLatLng(latlng)); } } }
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实际效果
(个人地理位置信息被处理了,实际Demo以个人位置为准)