我有一个简单的Spinner实现为:

vehicle = json.getJSONArray("vehicle");
for(int i = 0; i < vehicle.length(); i++){
    JSONObject c = vehicle.getJSONObject(i);
    //put json obkject on variable
    String id = c.getString("id");
    String name = c.getString("name");
    String capacity = c.getString("capacity");
    String cost = c.getString("cost");
    String v = name + " ("+capacity + " Liters)";
    vehicleList.add(v);
    // Set Spinner Adapter
    mySpinner.setAdapter(new ArrayAdapter<String>(OrderDetails.this,android.R.layout.simple_spinner_dropdown_item,vehicleList));
    // Spinner on item click listener
    mySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> arg0,View arg1, int position, long arg3) {
            car = vehicleList.get(+position);
            Toast.makeText(getApplicationContext(), car, Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onNothingSelected(AdapterView<?> arg0) {
            car = null;
        }
    });
}


我想在car变量中获取“ ID”的值。上面的实现有可能吗?

提前致谢。

最佳答案

尝试以此替换您的项目Click监听器...

mySpinner.setOnItemSelectedListener(new OnItemSelectedListener() {

    public void onItemSelected(AdapterView<?> arg0, View view,
            int position, long id) {
        int spinnerItem = spinner.getSelectedItemPosition();
        car = vehicleList.get(spinnerItem);
        Toast.makeText(getApplicationContext(), selectedId, Toast.LENGTH_SHORT).show();
    }

    public void onNothingSelected(AdapterView<?> arg0) {
        // nothing to do here :|
    }
});


//编辑
您可以创建另一个保存ID值的列表...,然后将值作为vehicleList添加到该列表中...

idList.add(id);


然后在微调器中选择项目时调用

String selectedId = idList.get(spinnerItem);

09-10 06:32
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