我有一个主要视图是谷歌地图的活动。我在最初加载地图时设置了一个标记，但是当我点击它时，我无法获得地点或任何东西。将显示地图，但我无法单击标记，或者点击或点击屏幕并按住以创建新标记。基本上它什么都做不了......我无法弄明白为什么！希望你们能看到我没看到的东西。
这是我的主要活动。
public class MapsActivity extends FragmentActivity {
//Maps
private GoogleMap mMap;
//Marker
private Marker marker;
//Location
private LocationListener locationListener = null;
private LocationManager locationManager = null;
private static final float DEFAULTZOOM = 15;
private double longitude_mapsActivity;
private double latitude_from_mapsActivity;
private String cityName_mapsActivity;
private String countryName_mapsActivity;
//ProgressBar
private ProgressBar myPB_MAPS;
//Buttons
private ImageButton fab_doneButton;
//SearchEditText
private EditText editText_Search;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
SupportMapFragment mapFragment = (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
mMap.animateCamera(CameraUpdateFactory.zoomTo(15), 2000, null);
}
});
//Get user current location.
//myPB_MAPS = (ProgressBar) findViewById(R.id.myPB_MAPS);
//initialize your map
initMap();
//FAB button
fab_doneButton = (ImageButton) findViewById(R.id.activity_maps_FAB_done);
fab_doneButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (countryName_mapsActivity == null) {
Toast.makeText(MapsActivity.this, "Location is null", Toast.LENGTH_SHORT).show();
} else {
Global_Class.getInstance().getValue().countryName_GLOBAL = countryName_mapsActivity;
Global_Class.getInstance().getValue().cityName_GLOBAL = cityName_mapsActivity;
Global_Class.getInstance().getValue().longitude_user_GLOBAL = longitude_mapsActivity;
Global_Class.getInstance().getValue().latitude_user_GLOBAL = latitude_from_mapsActivity;
//Go to make sure we're sending all the GPS info, so we set geoLocationFromMapsIsPresent to true.
FinishCard.geoLocationFromMapsIsPresent();
FinishCard.setComingBackFromMaps();
Intent FinishCardIntent = new Intent(MapsActivity.this, FinishCard.class);
startActivity(FinishCardIntent);
}
}
});
//EditText
editText_Search = (EditText) findViewById(R.id.maps_EditText);
editText_Search.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_SEARCH) {
performSearch();
return true;
}
return false;
}
});
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
}
private void performSearch()
{
String location = editText_Search.getText().toString();
if(location.length() == 0)
{
Toast.makeText(this,"Please enter a location",Toast.LENGTH_SHORT).show();
return;
}
//1-first step
Geocoder gc = new Geocoder(this);
List<Address> list = null;//For this function I only want a single address.
try
{
//3-Third step
list = gc.getFromLocationName(location,10);
}
catch (IOException e)
{
e.printStackTrace();
}
//4-Fourth step
Address add = list.get(0);//Give me the first and only item of the list.
//5-fifth step
String locality = add.getLocality();//So if you enter Taj mahal you get Agra, the place where its at, thats what Address locality does.
double lat = add.getLatitude();
double lng = add.getLongitude();
//GoToLocation() method
gotoLocation(lat, lng, DEFAULTZOOM);
//For Removing existing markers.
if(marker != null)
{
marker.remove();
}
MarkerOptions options = new MarkerOptions()
.title(locality)
.position(new LatLng(lat, lng))
.draggable(true);
marker = mMap.addMarker(options);
}
private void gotoLocation(double lat, double lng, float zoom)
{
LatLng ll = new LatLng(lat,lng);
CameraUpdate update = CameraUpdateFactory.newLatLngZoom(ll, zoom);
mMap.moveCamera(update);
}
private void setMarker(String locality, String country, double lat, double lng)
{
if(marker != null)
{
marker.remove();
}
MarkerOptions options = new MarkerOptions()
.title(locality)
.position(new LatLng(lat, lng))
.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE))
.draggable(true);
if(country.length() > 0)
{
options.snippet(country);//Background highlight TEXT SUPER IMPORTANT
}
//.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
marker = mMap.addMarker(options);//So here we connect our marker to our map, which is used in initMap.
}
private void initMap()
{
if(mMap == null)
{
if(mMap != null)
{
mMap.setOnMapLongClickListener(new GoogleMap.OnMapLongClickListener()
{
@Override
public void onMapLongClick(LatLng ll) {
Geocoder gc = new Geocoder(MapsActivity.this);
List<Address> list = null;
try {
list = gc.getFromLocation(ll.latitude, ll.longitude, 1);
} catch (IOException e) {
e.printStackTrace();
}
Address add = list.get(0);
MapsActivity.this.setMarker(add.getLocality(), add.getCountryName(), ll.latitude, ll.longitude);//this is where we set the orange marker.
latitude_from_mapsActivity= ll.latitude;
longitude_mapsActivity= ll.longitude;
countryName_mapsActivity = add.getCountryName();
cityName_mapsActivity = add.getLocality();
}
});
mMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
@Override
public boolean onMarkerClick(Marker marker)
{
LatLng ll = marker.getPosition();
latitude_from_mapsActivity= ll.latitude;
longitude_mapsActivity = ll.longitude;
Geocoder gc = new Geocoder(MapsActivity.this);
//Global_Class.getInstance().getValue().cardLocality = "Paris";
List<Address> list = null;
try
{
list = gc.getFromLocation(ll.latitude, ll.longitude,1);
}
catch (IOException e)
{
e.printStackTrace();
}
try
{
Address add = list.get(0);
countryName_mapsActivity = add.getCountryName();
cityName_mapsActivity = add.getLocality();
return false;
}
catch (IndexOutOfBoundsException e)
{
return false;
}
}
});
mMap.setOnMarkerDragListener(new GoogleMap.OnMarkerDragListener() //If you want to drag the original google maps marker you use this method, if you comment this out it will use the orange one.
{
@Override
public void onMarkerDragStart(Marker marker) {
}
@Override
public void onMarkerDrag(Marker marker) {
}
@Override
public void onMarkerDragEnd(Marker marker) {
Geocoder gc = new Geocoder(MapsActivity.this);
List<Address> list = null;
LatLng ll = marker.getPosition();
try {
list = gc.getFromLocation(ll.latitude, ll.longitude, 1);
} catch (IOException e) {
e.printStackTrace();
}
Address add = list.get(0);
marker.setTitle(add.getLocality());
marker.setSnippet(add.getCountryName());
//marker.showInfoWindow();
}
});
}
}
}
}
这是我的xml
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.daprlabs.swipedeck.GeoLocation.MapsActivity">
<RelativeLayout
android:layout_width="340dp"
android:layout_height="50dp"
android:background="#FFFFFF"
android:elevation="10sp"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp">
<EditText
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/maps_EditText"
android:imeOptions="actionSearch"
android:inputType="text"/>
</RelativeLayout>
<ProgressBar
android:layout_width="50dp"
android:layout_height="50dp"
android:id="@+id/myPB_MAPS"
android:layout_marginLeft="150dp"
android:layout_marginTop="55dp"/>
<ImageButton
android:layout_width="70dp"
android:layout_height="70dp"
android:background="@drawable/circle_fab"
android:id="@+id/activity_maps_FAB_done"
android:layout_gravity="right|bottom"
android:src="@drawable/white_plus" />
</fragment>
答案 0 :(得分：0)
你在initMap()中自相矛盾。
删除以下if语句：
if (mMap == null)
同样只在initMap()返回后调用mapFragment.getMapAsync。此时，您知道您的地图已准备就绪。
mapFragment.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
LatLng sydney = new LatLng(-34, 151);
mMap.addMarker(new MarkerOptions().position(sydney).title("Marker in Sydney"));
mMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
mMap.animateCamera(CameraUpdateFactory.zoomTo(15), 2000, null);
initMap();
}
});
答案 1 :(得分：0)
你应该实施
OnMapReadyCallback
反过来覆盖
onMapReady
现在您可以在onMapReady中操作Map。在此之前，您无法确定您的地图是否已正确设置。
操作Map的任何操作都需要在onMapReady上进行操作，例如在其上加载标记和设置标记点击侦听器。
作为Map在适当时间进行操作的示例，您可以从以下代码中获取提示，其中仅在正确设置了Map的相机时设置。
public class YourMapFragment extends Fragment implements OnMapReadyCallback {
...
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(currentPosition,16));
mMap.addMarker(new MarkerOptions()
.position(currentPosition)
.snippet("Lat:" + lat + "Lng:" + log));
}
...
}