Cara Menggunakan Spinner | Komponen Android Studio

 

Tambahkan data pada values > strings.xml

<resources>
    <string name="app_name">Register_retrofit</string>
    <string-array name="rute">
        <item>SMRG-JOG</item>
        <item>JOG-JKT</item>
        <item>LMPNG-JKT</item>
        <item>JOG-BNDG</item>
    </string-array>
</resources>

activity_pesan.xml

<Spinner
    android:layout_width="wrap_content"
    android:layout_height="match_parent"
    android:id="@+id/spinner"
    ></Spinner>

PesanActivity.kt

class PesanActivity : AppCompatActivity(), AdapterView.OnItemSelectedListener {
    override fun onNothingSelected(parent: AdapterView<*>?) {

    }

    override fun onItemSelected(parent: AdapterView<*>?, view: View?, position: Int, id: Long) {
        TeksRute = parent?.getItemAtPosition(position).toString()
        if(TeksRute.equals("SMRG-JOG")){
            rute = 1
        } else if(TeksRute.equals("JOG-JKT")){
            rute = 2
        } else if(TeksRute.equals("LMPNG-JKT")){
            rute = 3
        } else if(TeksRute.equals("JOG-BNDG")) {
            rute = 4
        } else {
            tvResponsePesan.text = "Error"
        }
    }

lateinit var spinner : Spinner

var rute: Int = 0

//OnCreate

spinner = findViewById(R.id.spinner)
val adapter = ArrayAdapter.createFromResource(
    this, R.array.rute,
    android.R.layout.simple_spinner_item
)

adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
spinner.adapter = adapter
spinner.onItemSelectedListener = this