android kotlin spinner适用于API 23,但不适用于API 21 [英] android kotlin spinner working for API 23, but not working for 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
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