Question

public void onNetworkSuccess(List<Mission> missionList) {

            List<LocationSpinnerObject> LocationsList = new ArrayList<>();
            LocationsList.add(getCurrentLocation());
            for(Mission mission : missionList){



            }
            LocationsSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
                @Override
                public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {

                }

                @Override
                public void onNothingSelected(AdapterView<?> parent) {}

            });

我想从我的任务对象中显示很少的数据，例如lang，lat和address。在微调器中，我想显示地址，当我选择一个地址时，地图动画将更新到该位置（意味着lat和lang将成为返回值）

我该怎么办？谢谢:)

Answer 1

让我们假设您的Mission对象包含lat，lang和address

public void onNetworkSuccess(List<Mission> missionList) {
    List<String> LocationsList = new ArrayList<>();
    LocationsList.add(getCurrentLocation());
    for(Mission mission : missionList) {
        LocationList.add(mission.getAddress()); // This is will show only the address on the spinner.    
    }

    LocationsSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            Mission mission = missionList.get(position); // Retrieve your mission with the selected item position.
            float latitude = mission.getLatitude();
            float longitude = mission.getLongitude(); 
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {

        }
    });    
}

如何使用Spinner从显示文本中获得不同的返回值？

1 个答案: