在我的应用程序中，我在 map 上绘制了 12 个标记，然后对于这些标记中的每一个，我都有 12 个对话框弹出并显示标记位置的地址。我在想一定有更好的方法来做到这一点，所以我一直在尝试创建一个列表来保存所有标记，并在点击时将列表中的标记传递到对话框中，所以我不必12 个独立的对话框。
目前我的标记被绘制到屏幕上，但是当标记被粘贴时对话框不显示，但是当我使用 12 个单独的对话框时它会显示。谁能指出问题所在的正确方向。
private List<Marker> markers = new ArrayList<Marker>();
//sets the default map location to glasgow
double defaultLat = 55.85432829452839;
double defaultLng = -4.268357989501965;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_muc_main);
//get drawable IDs
icoUser = R.drawable.yellow_point;
icoScotstoun = R.drawable.squash;
icoIbrox = R.drawable.rugby;
icoSecc = R.drawable.boxing;
icoKelvingrove = R.drawable.bowls;
icoHockey = R.drawable.hockey;
icoVeledrome = R.drawable.athetics;
icoCeltic = R.drawable.party;
icoTollcross = R.drawable.aqua;
icoHampden = R.drawable.athetics;
icoCathkin = R.drawable.cycleing;
icoStrathclyde = R.drawable.tri;
icoEdinburgh = R.drawable.athetics;
icoDundee = R.drawable.shooting;
//ArrayAdapter <String> adapter = new ArrayAdapter<String>(MucMainActivity.this, android.R.layout.simple_spinner_item, paths);
ArrayAdapter <String> adapter = new ArrayAdapter<String>(MucMainActivity.this, R.layout.spinner_layout, maptypes);
mapTypeSpinner = (Spinner) findViewById(R.id.spinner1);
mapTypeSpinner.setAdapter(adapter);
mapTypeSpinner.setOnItemSelectedListener(this);
//checks if the map has been instantiated or not if it hasn't then the map gets istantiated
if(mMap == null)
{
//passes the map fragment ID from the layout XML and casts it to a map fragment object
//and gets the google map object.
mMap = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();
}
if(mMap != null)
{
defaultSetting();
addListenerOnChkIos();
mMap.setOnMarkerClickListener(this);
}
//showUserLocation();
}
//@Override
// public boolean onCreateOptionsMenu(Menu menu)
//{
// Inflate the menu; this adds items to the action bar if it is present.
//getMenuInflater().inflate(R.menu.muc_main, menu);
//return true;
//}
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3)
{
// TODO Auto-generated method stub
int position = mapTypeSpinner.getSelectedItemPosition();
switch(position)
{
case 0:
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
break;
case 1:
mMap.setMapType(GoogleMap.MAP_TYPE_TERRAIN);
break;
case 2:
mMap.setMapType(GoogleMap.MAP_TYPE_SATELLITE);
break;
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0)
{
// TODO Auto-generated method stub
}
private void showUserLocation()
{
//get location manager
locMan = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
//get last location
Location lastLoc = locMan.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
double lat = lastLoc.getLatitude();
double lng = lastLoc.getLongitude();
//create LatLng
LatLng lastLatLng = new LatLng(lat, lng);
//remove any existing marker
if(marUser!=null) marUser.remove();
//create and set marker properties
marUser = mMap.addMarker(new MarkerOptions()
.position(lastLatLng)
.title("You are here")
.icon(BitmapDescriptorFactory.fromResource(icoUser)));
//move to location
mMap.animateCamera(CameraUpdateFactory.newLatLng(lastLatLng), 1000, null);
}
public void defaultSetting()
{
//sets the map type
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
// sets the default location of the map to Glasgow
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(defaultLat, defaultLng), 12.0f), null );
//mMap.animateCamera(CameraUpdateFactory.newLatLng(new LatLng(55.85432829452839, -4.268357989501965)), 3000, null);
//mMap.addMarker(new MarkerOptions().position(new LatLng(defaultLat,defaultLng)).title("hello"));
addMarkers();
}
public void addMarkers()
{
for ( int i = 0; i < 11; i++)
{
red = mMap.addMarker(new MarkerOptions().position(new LatLng(55.88069,-4.34025)).icon(BitmapDescriptorFactory.fromResource(icoScotstoun)));
markers.add(red);
blue = mMap.addMarker(new MarkerOptions().position(new LatLng(55.85360,-4.30454)).icon(BitmapDescriptorFactory.fromResource(icoIbrox)));
markers.add(blue);
green = mMap.addMarker(new MarkerOptions().position(new LatLng(55.86070,-4.28761)).icon(BitmapDescriptorFactory.fromResource(icoSecc)));
markers.add(green);
yellow = mMap.addMarker(new MarkerOptions().position(new LatLng(55.86782,-4.28875)).icon(BitmapDescriptorFactory.fromResource(icoKelvingrove)));
markers.add(yellow);
brown = mMap.addMarker(new MarkerOptions().position(new LatLng(55.84496,-4.23671)).icon(BitmapDescriptorFactory.fromResource(icoHockey)));
markers.add(brown);
pink = mMap.addMarker(new MarkerOptions().position(new LatLng(55.84496,-4.23671)).icon(BitmapDescriptorFactory.fromResource(icoVeledrome)));
markers.add(pink);
purple = mMap.addMarker(new MarkerOptions().position(new LatLng(55.84959,-4.20555)).icon(BitmapDescriptorFactory.fromResource(icoCeltic)));
markers.add(purple);
orange = mMap.addMarker(new MarkerOptions().position(new LatLng(55.84505,-4.17607)).icon(BitmapDescriptorFactory.fromResource(icoTollcross)));
markers.add(orange);
cyan = mMap.addMarker(new MarkerOptions().position(new LatLng(55.82570,-4.25239)).icon(BitmapDescriptorFactory.fromResource(icoHampden)));
markers.add(cyan);
magenta = mMap.addMarker(new MarkerOptions().position(new LatLng(55.79550,-4.22329)).icon(BitmapDescriptorFactory.fromResource(icoCathkin)));
markers.add(magenta);
olive = mMap.addMarker(new MarkerOptions().position(new LatLng(55.78529,-4.01481)).icon(BitmapDescriptorFactory.fromResource(icoStrathclyde)));
markers.add(olive);
darkBlue = mMap.addMarker(new MarkerOptions().position(new LatLng(55.93920,-3.17273)).icon(BitmapDescriptorFactory.fromResource(icoEdinburgh)));
markers.add(darkBlue);
LightGreen = mMap.addMarker(new MarkerOptions().position(new LatLng(56.49302,-2.74663)).icon(BitmapDescriptorFactory.fromResource(icoDundee)));
markers.add(LightGreen);
//dundeeM = mMap.addMarker(new MarkerOptions().position(new LatLng(56.49302,-2.74663)).title("DUNDEE"));
}
markers.size(); }
@Override
public boolean onMarkerClick(Marker marker)
{
if(marker.equals(marker.getId()))
{
// Create custom dialog object
final Dialog dialog = new Dialog(MucMainActivity.this);
// Include dialog.xml file
dialog.setContentView(R.layout.custom);
// Set dialog title
dialog.setTitle(marker.getTitle());
// set values for custom dialog components - text, image and button
TextView text = (TextView) dialog.findViewById(R.id.textDialog);
text.setText("Cathkin Braes Country Park" + "\n"+ "cathkin Road" + "\n" + "Glasgow" + "\n" + "G45");
ImageView image = (ImageView) dialog.findViewById(R.id.imageDialog);
image.setImageResource(R.drawable.biking);
dialog.show();
Button declineButton = (Button) dialog.findViewById(R.id.declineButton);
// if decline button is clicked, close the custom dialog
declineButton.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View v)
{
// Close dialog
dialog.dismiss();
}
});
}
return true;
}
最佳答案
方法内部
public boolean onMarkerClick(Marker marker)
你有条件检查:
if(marker.equals(marker.getId()))
尝试删除它。您将标记存储在开头定义的私有(private)成员中
private List<Marker> markers = new ArrayList<Marker>();
所以我不明白为什么要检查标记是否等于标记 ID。
希望对您有所帮助。
关于javascript - 优化安卓代码，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20623790/