Question

我创建了一个由listview和map组成的应用程序。当用户从列表视图中选择时，地图将自动转到该位置。此外，位置的配置文件将显示。按钮组成的按钮，当用户点击时，它将指示等待并获得经度的纬度。我不知道我的代码有什么问题，因为它无法获得位置的纬度和经度。我认为我的问题是在字符串网址中我无法获得经度和经度，但我不知道正确的代码来获取它。

        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {

              LatLng latLngtofocus = new LatLng(Double.parseDouble(GetLocation.get(i).getlatitude()),  Double.parseDouble(GetLocation.get(i).getlatitude()));

                    map.animateCamera(CameraUpdateFactory.newLatLngZoom(latlngtofocus, 17.0f));
                }


    LocationListView = findViewById(R.id.locationlayout);
                    ViewGroup parent = (ViewGroup) LocationListView.getParent();
                    parent.removeView(LocationListView);
                    // inflate your profile view (or get the reference to it if it's already inflated)
                    LocationProfileView = getLayoutInflater().inflate(R.layout.profile_location, parent, false);
                    // add it to the parent
                    parent.addView(LocationProfileView);

btnwaze = (Button) findViewById(R.id.waze);
                btnwaze.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {

                        try
                        {
                            String url = "waze://?q=(Double.parseDouble(GetLocation.get(i).getlatitude()), Double.parseDouble(GetLocation.get(i).getlongitude()))";
                            Intent intent = new Intent( Intent.ACTION_VIEW, Uri.parse( url ) );
                            startActivity( intent );
                        }
                        catch ( ActivityNotFoundException ex  )
                        {
                            Intent intent =
                                    new Intent( Intent.ACTION_VIEW, Uri.parse( "market://details?id=com.waze" ) );
                            startActivity(intent);
                        }
                    }
                });
  });

Answer 1

设置为final int i并将之前的代码更改为String url =“waze：//？ll =”+ GetLocation.get（i）.getlatitude（）+“，”+ GetLocation.get（i）.getlongitude（）+ “＆安培;导航= YES”;

从sqlite获取经度和经度打开waze

1 个答案: