单车家族（结对项目）3

地图定位

1、初始化

SDKInitializer.initialize(getApplicationContext());//我测试在Application的onCreate()不行，必须在activity的onCreate()中

2、配置map参数

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private void initMap() {
// 地图初始化
mMapView = (MapView) findViewById(R.id.id_bmapView);
mBaiduMap = mMapView.getMap();
// 开启定位图层
mBaiduMap.setMyLocationEnabled(true);
// 定位初始化
mlocationClient = new LocationClient(this);
mlocationClient.registerLocationListener(myListener);
LocationClientOption option = new LocationClientOption();
option.setOpenGps(true); // 打开gps
option.setCoorType("bd09ll"); // 设置坐标类型
option.setScanSpan(5000);//设置onReceiveLocation()获取位置的频率
option.setIsNeedAddress(true);//如想获得具体位置就需要设置为true
mlocationClient.setLocOption(option);
mlocationClient.start();
mCurrentMode = MyLocationConfiguration.LocationMode.FOLLOWING;
mBaiduMap.setMyLocationConfigeration(new MyLocationConfiguration(
mCurrentMode, true, null));
myOrientationListener = new MyOrientationListener(this);
//通过接口回调来实现实时方向的改变
myOrientationListener.setOnOrientationListener(new MyOrientationListener.OnOrientationListener() {
@Override
public void onOrientationChanged(float x) {
mCurrentX = x;
}
});
myOrientationListener.start();
mSearch = RoutePlanSearch.newInstance();
mSearch.setOnGetRoutePlanResultListener(this);
initMarkerClickEvent();
}

3、获取当前地址

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public class MyLocationListenner implements BDLocationListener {

@Override  
public void onReceiveLocation(BDLocation bdLocation) {  
    // map view 销毁后不在处理新接收的位置  
    if (bdLocation == null || mMapView == null) {  
        return;  
    }  
    MyLocationData locData = new MyLocationData.Builder()  
            .accuracy(bdLocation.getRadius())  
            .direction(mCurrentX)//设定图标方向     // 此处设置开发者获取到的方向信息，顺时针0-360  
            .latitude(bdLocation.getLatitude())  
            .longitude(bdLocation.getLongitude()).build();  
    mBaiduMap.setMyLocationData(locData);  
    currentLatitude = bdLocation.getLatitude();  
    currentLongitude = bdLocation.getLongitude();  
    current_addr.setText(bdLocation.getAddrStr());  
    currentLL = new LatLng(bdLocation.getLatitude(),  
            bdLocation.getLongitude());  
    startNodeStr = PlanNode.withLocation(currentLL);  
    //option.setScanSpan(5000)，每隔5000ms这个方法就会调用一次，而有些我们只想调用一次，所以要判断一下isFirstLoc  
    if (isFirstLoc) {  
        isFirstLoc = false;  
        LatLng ll = new LatLng(bdLocation.getLatitude(),  
                bdLocation.getLongitude());  
        MapStatus.Builder builder = new MapStatus.Builder();  
        //地图缩放比设置为18  
        builder.target(ll).zoom(18.0f);  
        mBaiduMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));  
        changeLatitude = bdLocation.getLatitude();  
        changeLongitude = bdLocation.getLongitude();  
        if (!isServiceLive) {  
            addOverLayout(currentLatitude, currentLongitude);  
        }  
    }  
}  

}