Question

我正在尝试使用Google地图v2构建应用。我的目标是尝试获取用户当前位置，然后通过spinner1显示它们附近的位置。如果用户选择例如Hospital，那么在地图上它将向医院显示标记。以下是logcat的结果。

Logcat

所以，我在spinner1的右侧添加了另一个微调器（spinner2）来存储所有这些医院名称。正如你所看到的，在logcat上有20家医院，但我的问题出在spinner2上，它只显示了1家医院。

result

如何将这20个数据添加到spinner2？这是我的代码：

    ...
    @Override
    protected void onPostExecute(List<HashMap<String, String>> list){

        gmapv2.clear();

        for(int i = 0; i<list.size(); i++){
            MarkerOptions m_opt = new MarkerOptions();
            HashMap<String, String> hash_tempat = list.get(i);
            double llat = Double.parseDouble(hash_tempat.get("lat"));
            double llong = Double.parseDouble(hash_tempat.get("lng"));
            String nama = hash_tempat.get("place_name");
            //Log.d("dari gg ke hendy", nama);
            String vici = hash_tempat.get("vicinity");
            Log.d("dari gg ke hendy", nama + " " + vici);
            LatLng ab_latLng = new LatLng(llat, llong);
            m_opt.position(ab_latLng);
            m_opt.title(nama + " : " + vici);
            m_opt.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
            Marker e = gmapv2.addMarker(m_opt);
            detailTempat.put(e.getId(), hash_tempat.get("reference"));

            adapt = new ArrayAdapter<String>(Places_On_Resta_Map.this, android.R.layout.simple_spinner_item, new ArrayList<String>());
            adapt.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
            spinnerDetail.setAdapter(adapt);
            adapt.add(nama);
            pDialog.dismiss();
        }
    }

任何想法或帮助将不胜感激。环境：Windows 7，Eclipse，Genymotion。

Answer 1

试试如下：

   ArrayList<String> myArray;
 for(int i = 0; i<list.size(); i++){
        MarkerOptions m_opt = new MarkerOptions();
        HashMap<String, String> hash_tempat = list.get(i);
        double llat = Double.parseDouble(hash_tempat.get("lat"));
        double llong = Double.parseDouble(hash_tempat.get("lng"));
        String nama = hash_tempat.get("place_name");
        myArray.add(nama);

        String vici = hash_tempat.get("vicinity");
        Log.d("dari gg ke hendy", nama + " " + vici);
        LatLng ab_latLng = new LatLng(llat, llong);
        m_opt.position(ab_latLng);
        m_opt.title(nama + " : " + vici);
        m_opt.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
        Marker e = gmapv2.addMarker(m_opt);
        detailTempat.put(e.getId(), hash_tempat.get("reference"));
    }

      adapt = new ArrayAdapter<String>(Places_On_Resta_Map.this, 
       android.R.layout.simple_spinner_item, myArray); //Change your array here
        adapt.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinnerDetail.setAdapter(adapt);
      pDialog.dismiss();

Answer 2

你可以这样做：

@Override
protected void onPostExecute(List<HashMap<String, String>> list){

    gmapv2.clear();
    adapt = new ArrayAdapter<String>(Places_On_Resta_Map.this, android.R.layout.simple_spinner_item, new ArrayList<String>());
    adapt.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);

    for(int i = 0; i<list.size(); i++){
        MarkerOptions m_opt = new MarkerOptions();
        HashMap<String, String> hash_tempat = list.get(i);
        double llat = Double.parseDouble(hash_tempat.get("lat"));
        double llong = Double.parseDouble(hash_tempat.get("lng"));
        String nama = hash_tempat.get("place_name");
        //Log.d("dari gg ke hendy", nama);
        String vici = hash_tempat.get("vicinity");
        Log.d("dari gg ke hendy", nama + " " + vici);
        LatLng ab_latLng = new LatLng(llat, llong);
        m_opt.position(ab_latLng);
        m_opt.title(nama + " : " + vici);
        m_opt.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));
        Marker e = gmapv2.addMarker(m_opt);
        detailTempat.put(e.getId(), hash_tempat.get("reference"));

        adapt.add(nama);//<---------
        pDialog.dismiss();
    }
   spinnerDetail.setAdapter(adapt);//<---------
}

使用数组适配器的Android微调器不显示所有数据

2 个答案: