DESCRIPTION
In this tutorial we will create alert obrolan with single choice from list of items. We will create a button that show alert obrolan when that button is clicked , a TextView that shows the selected item from dialog.
VIDEO
SOURCE CODE
Step 1: Create a new project OR Open your project
Step 2: Code
activity_main.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:padding="20dp"android:orientation="vertical"tools:context=".MainActivity"><Buttonandroid:id="@+id/showAlertDialogBtn"android:text="Show Alert Dialog"android:layout_width="match_parent"android:layout_height="wrap_content" /><TextViewandroid:id="@+id/txtView"android:text="Selected Item"android:textSize="20sp"android:layout_width="match_parent"android:layout_height="wrap_content" /></LinearLayout>
MainActivity.kt
package com.blogspot.atifsoftwares.myapplicationimport android.support.v7.app.AppCompatActivityimport android.os.Bundleimport android.support.v7.app.AlertDialogimport kotlinx.android.synthetic.main.activity_main.*class MainActivity : AppCompatActivity() {override fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)setContentView(R.layout.activity_main)showAlertDialogBtn.setOnClickListener {val listItems = arrayOf("Item 1" , "Item 2" , "Item 3")val mBuilder = AlertDialog.Builder(this@MainActivity)mBuilder.setTitle("Choose an item")mBuilder.setSingleChoiceItems(listItems , -1) { dialogInterface , i ->txtView.text = listItems[i]dialogInterface.dismiss()}// Set the neutral/cancel button click listenermBuilder.setNeutralButton("Cancel") { obrolan , which ->// Do something when click the neutral buttondialog.cancel()}val mDialog = mBuilder.create()mDialog.show()}}}
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