How to Pass Data from One Activity to Another in Android using Kotlin

How to Pass Data from One Activity to Another in  Android using Kotlin

1.Frst activity.kt :

import android.content.Intent
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import android.widget.Button
import android.widget.EditText

class First:AppCompatActivity() {
  internal var textBox:EditText
  internal var passButton:Button
  protected fun onCreate(savedInstanceState:Bundle) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_first)
    textBox = findViewById(R.id.textBox) as EditText
    passButton = findViewById(R.id.passButton) as Button
    passButton.setOnClickListener(object:View.OnClickListener() {
      fun onClick(v:View) {
        val str = textBox.getText().toString()
        val intent = Intent(getApplicationContext(), Second::class.java)
        intent.putExtra("message", str)
        startActivity(intent)
      }
    })
  }
}




2.Second Activity.kt :

import android.content.Intent
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.widget.TextView
class Second:AppCompatActivity() {
  internal var text:TextView
  protected fun onCreate(savedInstanceState:Bundle) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_second)
    text = findViewById(R.id.text) as TextView
    val intent = getIntent()
    val str = intent.getStringExtra("message")
    text.setText(str)
  }
}



3.activity_first.xml :

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="15dp"
    tools:context="com.androidexample.First"
    android:orientation="vertical">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/textBox"
        android:hint="Enter Your Message"/>

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/passButton"
        android:text="Pass"/>

</LinearLayout>


4.activity_second.xml :


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="15dp"
 tools:context="com.androidexample.Second">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text=""
        android:id="@+id/text"/>
</LinearLayout>