Warning: file_get_contents(/data/phpspider/zhask/data//catemap/9/java/355.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181

Warning: file_get_contents(/data/phpspider/zhask/data//catemap/4/kotlin/3.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
Java 贴图片段直接将相机移动到当前位置_Java_Android_Google Maps - Fatal编程技术网

Java 贴图片段直接将相机移动到当前位置

Java 贴图片段直接将相机移动到当前位置,java,android,google-maps,Java,Android,Google Maps,我在地图片段中使用place picker生成代码以显示附近的位置,但它无法直接将相机移动到我当前的手机位置,我必须使用center=new lat long手动输入lat long,但我希望它直接根据手机位置移动 @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); client = new Goo

我在地图片段中使用place picker生成代码以显示附近的位置,但它无法直接将相机移动到我当前的手机位置,我必须使用
center=new lat long
手动输入lat long,但我希望它直接根据手机位置移动

@Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        client = new GoogleApiClient.Builder(getContext())
                .addApi(LocationServices.API)
                .addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() {
                    @Override
                    public void onConnected(@Nullable Bundle bundle) {
                        if (isResumed()) {
                            try {
                                LocationRequest request = new LocationRequest();
                                request.setInterval(1000);
                                request.setSmallestDisplacement(1);
                                LocationServices.FusedLocationApi.requestLocationUpdates(client, request, new LocationListener() {
                                    @Override
                                    public void onLocationChanged(Location location) {
                                        LatLng myLatLong = new LatLng(location.getLatitude(),
                                                location.getLongitude());
                                        CameraPosition cameraPosition = new CameraPosition.Builder().target(myLatLong).zoom(17).build();
                                        googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
                                    }
                                });
                            } catch (SecurityException ex) {

                            }
                        }
                    }

                    @Override
                    public void onConnectionSuspended(int i) {

                    }
                }).build();
        client.connect();
    }
如何使相机直接移动到我的位置??谢谢你的帮助

public class MainActivity extends FragmentActivity implements OnMapReadyCallback {
    MapFragment mapFragment;
    GoogleMap gMap;
    MarkerOptions markerOptions = new MarkerOptions();
    CameraPosition cameraPosition;
    LatLng center, latLng;
    String title;

    public static final String ID = "id";
    public static final String TITLE = "name";
    public static final String LAT = "lat";
    public static final String LNG = "lng";

    private String url = "http://192.168.0.12/myjson/markers.php";

    String tag_json_obj = "json_obj_req";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mapFragment = (MapFragment) getFragmentManager().findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);

    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        gMap = googleMap;

        center = new LatLng(-6.337800, 106.698990);
        cameraPosition = new CameraPosition.Builder().target(center).zoom(10).build();
        googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));

        getMarkers();
    }

    private void addMarker(LatLng latlng, final String title) {
        markerOptions.position(latlng);
        markerOptions.title(title);
        gMap.addMarker(markerOptions);

        gMap.setOnInfoWindowClickListener(new GoogleMap.OnInfoWindowClickListener() {
            @Override
            public void onInfoWindowClick(Marker marker) {
                Toast.makeText(getApplicationContext(), marker.getTitle(), Toast.LENGTH_SHORT).show();
            }
        });
    }

    // Fungsi get JSON marker
    private void getMarkers() {
        StringRequest strReq = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {

            @Override
            public void onResponse(String response) {
                Log.e("Response: ", response.toString());

                try {
                    JSONObject jObj = new JSONObject(response);
                    String getObject = jObj.getString("wisata");
                    JSONArray jsonArray = new JSONArray(getObject);

                    for (int i = 0; i < jsonArray.length(); i++) {
                        JSONObject jsonObject = jsonArray.getJSONObject(i);
                        title = jsonObject.getString(TITLE);
                        latLng = new LatLng(Double.parseDouble(jsonObject.getString(LAT)), Double.parseDouble(jsonObject.getString(LNG)));

                        // Menambah data marker untuk di tampilkan ke google map
                        addMarker(latLng, title);
                    }

                } catch (JSONException e) {
                    // JSON error
                    e.printStackTrace();
                }

            }
        }, new Response.ErrorListener() {

            @Override
            public void onErrorResponse(VolleyError error) {
                Log.e("Error: ", error.getMessage());
                Toast.makeText(MainActivity.this, error.getMessage(), Toast.LENGTH_LONG).show();
            }
        });

        AppController.getInstance().addToRequestQueue(strReq, tag_json_obj);
    }
}
public类MainActivity扩展了FragmentActivity在MapreadyCallback上的实现{
MapFragment;
谷歌地图gMap;
MarkerOptions MarkerOptions=新MarkerOptions();
摄像定位摄像定位;
拉特宁中心,拉特宁;
字符串标题;
公共静态最终字符串ID=“ID”;
公共静态最终字符串TITLE=“name”;
公共静态最终字符串LAT=“LAT”;
公共静态最终管柱LNG=“LNG”;
专用字符串url=”http://192.168.0.12/myjson/markers.php";
字符串tag_json_obj=“json_obj_req”;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mapFragment=(mapFragment)getFragmentManager().findFragmentById(R.id.map);
getMapAsync(这个);
}
@凌驾
4月1日公开作废(谷歌地图谷歌地图){
gMap=谷歌地图;
中心=新车床(-6.337800,106.698990);
cameraPosition=新建cameraPosition.Builder().target(中心).zoom(10.build();
googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
getMarkers();
}
专用void addMarker(LatLng LatLng,最终字符串标题){
标记选项位置(板条);
标记选项。标题(标题);
gMap.addMarker(标记选项);
gMap.setOnInfoWindowClickListener(新的GoogleMap.OnInfoWindowClickListener(){
@凌驾
公用无效信息窗口单击(标记){
Toast.makeText(getApplicationContext(),marker.getTitle(),Toast.LENGTH_SHORT.show();
}
});
}
//Fungsi-get-JSON标记
私有void getMarkers(){
StringRequest strReq=newStringRequest(Request.Method.POST,url,new Response.Listener()){
@凌驾
公共void onResponse(字符串响应){
Log.e(“Response:,Response.toString());
试一试{
JSONObject jObj=新的JSONObject(响应);
字符串getObject=jObj.getString(“wisata”);
JSONArray JSONArray=新的JSONArray(getObject);
for(int i=0;i
首先,您需要知道当前位置。为此,您必须使用
GoogleAppClient
。然后,您可以使用
CameraPosition
将地图运行到该位置

下面的代码首先连接到GoogleAPI客户端。在连接回调中,它请求当前位置1秒。最后,它会设置动画以映射到最后一个可用位置

@Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        client = new GoogleApiClient.Builder(getContext())
                .addApi(LocationServices.API)
                .addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() {
                    @Override
                    public void onConnected(@Nullable Bundle bundle) {
                        if (isResumed()) {
                            try {
                                LocationRequest request = new LocationRequest();
                                request.setInterval(1000);
                                request.setSmallestDisplacement(1);
                                LocationServices.FusedLocationApi.requestLocationUpdates(client, request, new LocationListener() {
                                    @Override
                                    public void onLocationChanged(Location location) {
                                        LatLng myLatLong = new LatLng(location.getLatitude(),
                                                location.getLongitude());
                                        CameraPosition cameraPosition = new CameraPosition.Builder().target(myLatLong).zoom(17).build();
                                        googleMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
                                    }
                                });
                            } catch (SecurityException ex) {

                            }
                        }
                    }

                    @Override
                    public void onConnectionSuspended(int i) {

                    }
                }).build();
        client.connect();
    }

我可以在片段活动中使用它吗?只需在片段或活动的`onCreate()`内部输入。