Question

这是布局代码

    LinearLayoutManager layoutManager = new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false);
    locationRecycler = findViewById(R.id.locations_area);
    locationRecycler.setLayoutManager(layoutManager);
    locationAreaAdapter = new LocationAreaAdapter(this, locations);




public  void callMapPins(){

    for (  markerCount=0 ; markerCount<lat.size();markerCount++){
        LatLng sydney = new LatLng(Float.parseFloat(lat.get(markerCount)), Float.parseFloat(lng.get(markerCount)));
       // mgoogleMap.addMarker(new MarkerOptions().position(sydney));

      markerId.add( mgoogleMap.addMarker(new MarkerOptions().position(sydney)).getId()) ;
        mgoogleMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
            @Override
            public boolean onMarkerClick(Marker marker) {
            if(markerId.contains(marker.getId())){
             // Toast.makeText(insideHostelList.this, "", Toast.LENGTH_SHORT).show();

            recyclerView.scrollToPosition(markerCount);
               //this is not working 

            }

                return false;
            }
        });
        mgoogleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(sydney,10f));
    }
}

我将标记ID存储在数组中，然后单击一个比较ID的标记，然后使用标记计数滚动到特定位置，但似乎不起作用，任何人都可以帮忙。

Answer 1

将OnMarkerClickListener移出for循环。在创建标记并将其添加到地图并存储ID之后，设置markerClickListener。

  public  void callMapPins(){

    for (markerCount=0 ; markerCount<lat.size();markerCount++){

        LatLng sydney = new LatLng(Float.parseFloat(lat.get(markerCount)), Float.parseFloat(lng.get(markerCount)));

        markerId.add( mgoogleMap.addMarker(new MarkerOptions().position(sydney)).getId()) ;
    }


    mgoogleMap.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
        @Override
        public boolean onMarkerClick(Marker marker) {
            if(markerId.contains(marker.getId())){
                // Toast.makeText(insideHostelList.this, "", Toast.LENGTH_SHORT).show();
              int index = markerId.indexOf(marker.getId());
                recyclerView.scrollToPosition(index);
                //this is not working 
                mgoogleMap.moveCamera(CameraUpdateFactory.newLatLngZoom(marker.getPosition(),10f));
            }

            return false;
        }
    });
}

单击地图上的标记时，滚动到特定的卡位置

1 个答案: