、简单实现百度地图实时定位功能

首先是在百度地图官网注册账户，然后进行申请api，其他就不啰嗦了，获取sha1码方法

参考如下文章  http://jingyan.baidu.com/article/a681b0de0f860f3b184346bc.html
上代码

public class MainActivity extends AppCompatActivity {
MapView mapView;
// TODO: 2017-06-21 获取实时定位
BaiduMap baiduMap;
LocationManager locationmanger;
private String provider;
private boolean isFirstlocats = true;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//获取sdk的值,进行初始化，调用getApplicationContext获取全局传入
SDKInitializer.initialize(getApplicationContext());
setContentView(R.layout.activity_main);
mapView = (MapView) findViewById(R.id.map_view);
//获取baidumap实例
baiduMap = mapView.getMap();
// TODO: 2017-06-21 修改实现本人位置显示
baiduMap.setMyLocationEnabled(true);
//获取位置提供器
locationmanger = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
//获取所有位置提供器
//获取所有可用的额位置提供器
List<String> providerlist = locationmanger.getProviders(true);
if (providerlist.contains(LocationManager.GPS_PROVIDER)) {
provider = LocationManager.GPS_PROVIDER;
} else if (providerlist.contains(LocationManager.NETWORK_PROVIDER)) {
provider = LocationManager.NETWORK_PROVIDER;
} else {
//当前没有可用的位置提供器
Toast.makeText(this, "当前没有可用的位置提供器", Toast.LENGTH_SHORT).show();
return;
}
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
//    ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
//   public void onRequestPermissionsResult(int requestCode, String[] permissions,
//                                          int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
Location location = locationmanger.getLastKnownLocation(provider);
if (location != null) {
//显示当前设备位置信息
showlocation(location);
}
locationmanger.requestLocationUpdates(provider, 5000, 1, locationlistener);
}

LocationListener locationlistener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
//更新当前位置信息
if (location != null) {
Log.e("jknhkhnj", "lkklmkl");
showlocation(location);
}

}

@Override
public void onStatusChanged(String provider, int status, Bundle extras) {

}

@Override
public void onProviderEnabled(String provider) {

}

@Override
public void onProviderDisabled(String provider) {

}
};

private void showlocation(final Location locationmessage) {
if (isFirstlocats) {
//            String currentposition = "经度  ：" + locationmessage.getLatitude() + "\n" + "纬度 ：" + locationmessage.getLongitude();
//            Log.e("currentposition", "===" + currentposition);
LatLng ll = new LatLng(locationmessage.getLatitude(), locationmessage.getLongitude());
MapStatusUpdate update = MapStatusUpdateFactory.newLatLng(ll);
baiduMap.animateMapStatus(update);
update = MapStatusUpdateFactory.zoomBy(16f);
baiduMap.animateMapStatus(update);
isFirstlocats = false;
}
// TODO: 2017-06-21 添加修改实现本人位置显示
MyLocationData.Builder locationbuilder = new MyLocationData.Builder();
locationbuilder.latitude(locationmessage.getLatitude());
locationbuilder.longitude(locationmessage.getLongitude());
MyLocationData locationData = locationbuilder.build();
baiduMap.setMyLocationData(locationData);
}

@Override
protected void onDestroy() {
//在activity执行onDestroy时执行mMapView.onDestroy()，实现地图生命周期管理
super.onDestroy();
// TODO: 2017-06-21 增加显示个人位置
baiduMap.setBaiduHeatMapEnabled(false);
mapView.onDestroy();
if (locationmanger != null) {
//关闭程序时候监听器移除
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
//    ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
//   public void onRequestPermissionsResult(int requestCode, String[] permissions,
//                                          int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
locationmanger.removeUpdates(locationlistener);
}
}

@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
mapView.onPause();
}

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

-===================================================================
需要给build.gradle中添加如下代码

/**
* 目前 Android Studio不支持自动添加 .so文件（Eclipse是支持的），所以我们需要手动加载libs下的.so的动态库
*/
sourceSets {
main() {
jniLibs.srcDirs = ['libs']
}
}

==============================================
权限问题

//百度地图的权限
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.GET_TASKS" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_SETTINGS" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

==================================================
注意

<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
//百度地图的设置
<meta-data
android:name="com.baidu.lbsapi.API_KEY"
android:value="pPcy7cpMIxvofYKRiCItv6BpwrvTZG1s" />
</application>