java获取OnCheckedChangedListener中的视图位置

Question

我目前有一个自定义的ArrayAdapter，它使用xml布局文件，并使用传入的ArrayList<>Java对象进行填充。在布局中有一个我称之为setOnCheckedChangeListener的开关。但是，在侦听器中，我在检索开关来自列表中的位置或甚至该行中的其他视图时遇到问题。这两种都可以

我见过有人使用ViewHolder，但我不确定这是否能帮我做我想做的事。这是我的适配器代码

    public class AlarmAdapter extends ArrayAdapter<Alarm>  {
    Context context;
    TextView alarmId;
    TextView repeatDaysText;
    public AlarmAdapter(Context context, ArrayList<Alarm> alarmList){
        super(context, R.layout.alarm_layout, alarmList);
        this.context =context;
    }


    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {

        //Get the data item for this position
        Alarm alarm = getItem(position);

        //Check if an existing view is being reused, otherwise inflate the view
        if (convertView == null) {
            convertView = LayoutInflater.from(getContext()).inflate(R.layout.alarm_layout, parent, false);
        }
        //sets the widgets to correspond to variables

        //Set hidden id reference
        alarmId = (TextView)convertView.findViewById(R.id.hidden_alarm_id);
        alarmId.setText(String.valueOf(alarm.getId()));

        //Set the time display string
        TextView timeText = (TextView) convertView.findViewById(R.id.time_display_text);
        SimpleDateFormat  sdf = new SimpleDateFormat("hh:mm a");
        timeText.setText(sdf.format(alarm.getTime()));

        //Set the days repeating on
        repeatDaysText = (TextView)convertView.findViewById(R.id.repeat_days_text);
        if(alarm.getClass() == RepeatingAlarm.class){
            String repeatText = UtilityFunctions.generateRepeatText(((RepeatingAlarm)alarm).getRepeatDays());
            if(repeatText != null){
                repeatDaysText.setText(repeatText);
                repeatDaysText.setVisibility(View.VISIBLE);
            }
        } else {
            repeatDaysText.setVisibility(View.GONE);
        }

        //Set the status of the alarm
        Switch statusSwitch = (Switch) convertView.findViewById(R.id.activate_alarm_switch);
        statusSwitch.setChecked(alarm.getStatus());

        statusSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            @Override
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {


                if(isChecked){
                    //Activate alarm
//                    AlarmController.getInstance().activateAlarm(context,/*some id*/);
                } else{
                    //Deactivate alarm
//                    AlarmController.getInstance().cancelAlarm(context,/*some id*/);
                }
            }
        });

        return convertView;
    }

}

Answer 1

  ListView mListView = findViewById(R.id.listView);
    for (int position = 0; position <mListView.getChildCount();position ++){
        cb = (CheckBox) mListView.getChildAt(position ).findViewById(R.id.myCheckBox);
        if(cb.isChecked()){
            // doSomething  with the position
        }

Answer 2

我能够利用Alarm checkedAlarm = getItem(position);获取我的报警对象，然后从那里检索控制器所需的报警id。我把它称为on checked listener中的第一件事