how to jump one activity to another activity in kotlin android

 how to jump one activity to another activity in kotlin android 

In this article, today learn how to jump one activity to another activity in kotlin android basically using an Intent[] from the following code.

        val intent = Intent(this@MainActivity, SecondActivity::class.java)
        startActivity(intent)

follow the example  learn how to jump one activity to another activity in kotlin android

1.MainActivity.kt :

import android.content.Intent

import android.os.Bundle

import android.support.v7.app.AppCompatActivity

import android.support.v7.widget.Toolbar

import android.view.View

import android.view.Menu

import android.view.MenuItem

import android.widget.Button

class MainActivity:AppCompatActivity() {

  protected fun onCreate(savedInstanceState:Bundle) {

    super.onCreate(savedInstanceState)

    setContentView(R.layout.activity_main)

    val toolbar = findViewById(R.id.toolbar) as Toolbar

    setSupportActionBar(toolbar)

    val button = findViewById(R.id.button) as Button

    button.setOnClickListener(object:View.OnClickListener() {

      fun onClick(view:View) {

        val intent = Intent(this@MainActivity, SecondActivity::class.java)

        startActivity(intent)

      }

    })

  }

}

2.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"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"

    tools:context="akraj.snow.test.MainActivity"

    tools:showIn="@layout/activity_main">

    <Button

        android:id="@+id/button"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/button_send" />

</LinearLayout>

3.SecondActivity.kt:

import android.os.Bundle

import android.support.v7.app.AppCompatActivity

import android.support.v7.widget.Toolbar

class SecondActivity:AppCompatActivity() {

  protected fun onCreate(savedInstanceState:Bundle) {

    super.onCreate(savedInstanceState)

    setContentView(R.layout.activity_second)

    val toolbar = findViewById(R.id.toolbar) as Toolbar

    setSupportActionBar(toolbar)

  }

}

4.activity_second :

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout 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"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"

    tools:context="akraj.snow.test.SecondActivity"

    tools:showIn="@layout/activity_second">

    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Second Activity"

        android:id="@+id/textView" />

</RelativeLayout>

5. manifest.xml :

<manifest xmlns:android="http://schemas.android.com/apk/res/android" 

    package="com.intent.example" 

 

    <application 

        android:icon="@drawable/ic_launcher" 

        android:label="@string/app_name" 

        android:theme="@style/AppTheme" > 

        <activity 

            android:name=".MainActivity" 

            android:label="@string/title_activity_main" > 

            <intent-filter> 

                <action android:name="android.intent.action.MAIN" /> 

 

                <category android:name="android.intent.category.LAUNCHER" /> 

            </intent-filter> 

        </activity> 

        <activity 

            android:name=". SecondActivity " 

            android:label="@string/title_activity_main" > 

          </activity> 

    </application> 

 

</manifest>