Я создал спиннер, но я хотел бы изменить цвет текста и размер шрифта.Есть много учебников в Интернете на Java.У меня трудности с переводом Java на Kotlin, потому что я новичок.Пожалуйста, помогите найти решение.
SpinnerActivity.kt
class SpinnerActivity : AppCompatActivity() {
lateinit var option : Spinner
lateinit var result :TextView
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_spinner)
option = findViewById(R.id.sp_option) as Spinner
result = findViewById(R.id.tv_result) as TextView
val options = arrayOf("111", "222", "333")
option.adapter = ArrayAdapter<String>(this,R.layout.spinner_layout,options)
option.onItemSelectedListener = object : AdapterView.OnItemSelectedListener{
override fun onNothingSelected(parent: AdapterView<*>?) {
//TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
result.text = "please select an option"
}
override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
//TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
result.text = options.get(position)
}
}
activity_spinner.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".SpinnerActivity">
<Spinner
android:id="@+id/sp_option"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorPrimary"
android:popupTheme="@android:style/ThemeOverlay.Material.Light"
/>
<TextView
android:id="@+id/tv_result"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"/>
</LinearLayout>
spinner_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent" android:layout_height="match_parent">
<TextView
android:id="@+id/custom_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textColor="@color/colorAccent"
/>
</RelativeLayout>