Android Maps v2-信息窗口尽管存在侦听器,但单击不工作
我正试图根据单击的Android Maps v2-信息窗口尽管存在侦听器,但单击不工作,android,kotlin,android-maps-v2,Android,Kotlin,Android Maps V2,我正试图根据单击的InfoWindow来显示Toast。我已经为每个InfoWindow实现了click监听器,但由于某些原因,它们在单击时都不会执行任何操作。我还分别尝试了两种不同的方法(mGoogleMap.setOnInfoWindowClickListener)和(override fun onInfoWindowClick),但仍然没有成功 class MyFragment : androidx.fragment.app.Fragment(), GoogleMap.OnInfoWind
InfoWindow
来显示Toast
。我已经为每个InfoWindow
实现了click监听器,但由于某些原因,它们在单击时都不会执行任何操作。我还分别尝试了两种不同的方法(mGoogleMap.setOnInfoWindowClickListener
)和(override fun onInfoWindowClick
),但仍然没有成功
class MyFragment : androidx.fragment.app.Fragment(), GoogleMap.OnInfoWindowClickListener, OnMapReadyCallback {
private lateinit var mGoogleMap: GoogleMap
private lateinit var mMapView: MapView
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
val v = inflater.inflate(R.layout.my_fragment, container, false)
mMapView = v.map_location
mMapView.onCreate(savedInstanceState)
mMapView.getMapAsync(this)
return v
}
override fun onMapReady(googleMap: GoogleMap) {
mGoogleMap = googleMap
mGoogleMap.mapType = GoogleMap.MAP_TYPE_NORMAL
val locationA = LatLng(44.862390, -0.550287)
mGoogleMap.addMarker(
MarkerOptions()
.position(locationA)
.title("Location A")
)
val locationB = LatLng(44.863089, -0.551417)
mGoogleMap.addMarker(
MarkerOptions()
.position(locationB)
.title("Location B")
)
mGoogleMap.setOnInfoWindowClickListener { marker ->
if (marker.equals(locationA)) {
Toast.makeText(activity, "A", Toast.LENGTH_SHORT).show()
} else if (marker.equals(locationB)) {
Toast.makeText(activity, "B", Toast.LENGTH_SHORT).show()
}
}
val cameraUpdate = CameraUpdateFactory.newLatLngZoom(LatLng(44.862716, -0.550763), 18f)
}
override fun onInfoWindowClick(marker: Marker?) {
if (marker != null) {
if (marker.id == "locationA") {
Toast.makeText(activity, "A", Toast.LENGTH_SHORT).show()
}
else if (marker.id == "locationB") {
Toast.makeText(activity, "B", Toast.LENGTH_SHORT).show()
}
}
}
override fun onResume() {
super.onResume()
mMapView.onResume()
}
override fun onPause() {
super.onPause()
mMapView.onPause()
}
override fun onDestroy() {
super.onDestroy()
mMapView.onDestroy()
}
override fun onSaveInstanceState(outState: Bundle) {
super.onSaveInstanceState(outState)
mMapView.onSaveInstanceState(outState)
}
override fun onLowMemory() {
super.onLowMemory()
mMapView.onLowMemory()
}
}
您正在将LatLng与Marker进行比较,它无法工作 例如,您应该比较标记标题:
override fun onMapReady(googleMap: GoogleMap) {
mGoogleMap = googleMap
mGoogleMap.mapType = GoogleMap.MAP_TYPE_NORMAL
val locationA = LatLng(44.862390, -0.550287)
// markerA is a variable of your fragment
markerA = mGoogleMap.addMarker(
MarkerOptions()
.position(locationA)
.title("Location A")
)
val locationB = LatLng(44.863089, -0.551417)
// markerB is a variable of your fragment
markerB = mGoogleMap.addMarker(
MarkerOptions()
.position(locationB)
.title("Location B")
)
mGoogleMap.setOnInfoWindowClickListener { marker ->
onMarkerClick(marker)
}
val cameraUpdate = CameraUpdateFactory.newLatLngZoom(LatLng(44.862716, -0.550763), 18f)
}
override fun onInfoWindowClick(marker: Marker?) {
if (marker != null) {
onMarkerClick(marker)
}
}
private fun onMarkerClick(marker: Marker) {
if (marker.id == markerA.id) {
Toast.makeText(activity, "A", Toast.LENGTH_SHORT).show()
} else if (marker.id == markerB.id) {
Toast.makeText(activity, "B", Toast.LENGTH_SHORT).show()
}
}
}
这个去哪儿了?在
mGoogleMap.setOnInfoWindowClickListener
或覆盖有趣的onInfoWindowClick
中,我刚刚尝试了你的答案,但它不起作用。请记住,我希望单击信息窗口时出现土司
,而不是标记
。请查看我制作的onMarkerClick方法版本,因为它是错误的比较。如果至少有两个标记具有相同名称,则最好不要匹配标记的标题。您能告诉我如何检查标记位置吗?我已经尝试了如果(marker.position==locationA){…
但是我得到了一个未解决的引用错误。@MacaronLover我同意您的看法,按名称比较标记不是一个好方法。您可以使用addMarker方法返回的标记id或标记,如下所示:val markerA=mGoogleMap.addMarker(MarkerOptions().position(位置B).标题(“位置B”))