android kotlin spinner适用于API 23，但不适用于API 21

本文介绍了android kotlin spinner适用于API 23，但不适用于API 21的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我在真实设备SM-G900F API 23中测试了微调器，它运行良好.但是它在SM-N9005 API 21中不起作用.它显示了微调器，但是当我单击微调器时它没有显示任何选项.

I test my spinner in real device SM-G900F API 23, it is working well. But it is not working in SM-N9005 API 21. It shows the spinner but it did not show any options when I click the spinner.

请在下面查看我的代码，以帮助解决此问题.

Please see my code below and help to solve this issue.

override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_country_selector) val spinnerOne = search_spinner1 val spinnerTwo = search_spinner2 val userDetail = UserDetail(this) //SpinnerOne spinnerOne.adapter = ArrayAdapter<String>(this, R.layout.item, countryArray) //SpinnerTwo val dataAdapter = ArrayAdapter<String>(this, R.layout.item, tempArray) spinnerTwo.setAdapter(dataAdapter) spinnerOne.onItemSelectedListener = object : AdapterView.OnItemSelectedListener { override fun onNothingSelected(parent: AdapterView<*>?) { } override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) { countrySelected = parent?.getItemAtPosition(position).toString() citySelected = countrySelected if (countrySelected == "香港") { userDetail.saveCountry(countrySelected) userDetail.saveCity(countrySelected) spinnerTwo.visibility = View.GONE finish() } else if (countrySelected == "澳門") { userDetail.saveCountry(countrySelected) userDetail.saveCity(countrySelected) spinnerTwo.visibility = View.GONE finish() } else if (countrySelected == "台灣") { userDetail.saveCountry(countrySelected) tempArray.clear() tempArray.addAll(taiwanArray) dataAdapter.notifyDataSetChanged() spinnerTwo.visibility = View.VISIBLE } } } //hide spinner2 spinnerTwo.visibility = View.GONE spinnerTwo.onItemSelectedListener = object : AdapterView.OnItemSelectedListener { override fun onNothingSelected(parent: AdapterView<*>?) { } override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) { citySelected = parent?.getItemAtPosition(position).toString() if (citySelected == "選擇城市") { } else { userDetail.saveCity(citySelected) finish() } } }

以下是xml文件:

Here with the xml file:

在此处输入代码

enter code here

推荐答案

我找到了答案

android:spinnerMode ="dialog"

android:spinnerMode="dialog"

添加此代码，它将适用于API 21和23

add this code it will be work for API 21 and 23