kotlin intent example

In this article today learn kotlin intent example. For android studio. Intent as using a one activity to another activity so follow the source code kotlin intent example.

Android Intent is an informing object used to demand another application part to play out an activity. Intent encourages clients to speak with application segment through a few different ways, for example, beginning an activity, beginning a help, conveying a communicate recipient, and so on.

 

Intents (android.content.Intent) are the informing framework by which one activity can dispatch another activity. An activity can, for example, issue an intent to demand the dispatch of another activity contained inside a similar application. Intents additionally, be that as it may, go past this idea by permitting an activity to demand the administrations of some other suitably enrolled activity on the gadget for which authorizations are arranged. Consider, for example, an activity contained inside an application that requires a website page to be stacked and shown to the client. Instead of the application containing a subsequent activity to play out this assignment, the code can basically send an intent to the Android runtime mentioning the administrations of any activity that has enlisted the capacity to show a site page. The runtime framework will coordinate the solicitation to accessible exercises on the gadget and either dispatch the activity that matches or, in case of numerous matches, permit the client to choose which activity to utilize.

 

Intents likewise take into account the exchange of information from the sending activity to the getting activity. In the recently illustrated situation, for example, the sending activity would need to send the URL of the website page to be shown to the subsequent activity. Additionally, the accepting activity may likewise be arranged to return information to the sending activity when the necessary undertakings are finished.

 

Follow the kotlin intent example source code.



1.MainActivity.kt:


import android.content.Intent  
import android.support.v7.app.AppCompatActivity  
import android.os.Bundle  
import kotlinx.android.synthetic.main.activity_main.*  
  
class MainActivity : AppCompatActivity() {  
    val id:Int = 10  
    val language:String = "kotlin"  
    override fun onCreate(savedInstanceState: Bundle?) {  
        super.onCreate(savedInstanceState)  
        setContentView(R.layout.activity_main)  
  
        button.setOnClickListener() {  
            intent = Intent(this, SecondActivity::class.java)  
            intent.putExtra("id_value", id)  
            intent.putExtra("language_value", language)  
            startActivity(intent)  
        }  
    }  
}  



2.activity_main.xml:


<?xml version="1.0" encoding="utf-8"?>  
<android.support.constraint.ConstraintLayout 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"  
    tools:context="example.javatpoint.com.kotlinexplicitintent.MainActivity">  
  
    <TextView  
        android:id="@+id/textView"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:layout_marginBottom="8dp"  
        android:layout_marginTop="8dp"  
        android:text="First Activity"  
        android:textSize="18sp"  
        app:layout_constraintBottom_toBottomOf="parent"  
        app:layout_constraintHorizontal_bias="0.501"  
        app:layout_constraintLeft_toLeftOf="parent"  
        app:layout_constraintRight_toRightOf="parent"  
        app:layout_constraintTop_toTopOf="parent"  
        app:layout_constraintVertical_bias="0.172" />  
  
    <Button  
        android:id="@+id/button"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:layout_marginBottom="8dp"  
        android:layout_marginEnd="8dp"  
        android:layout_marginStart="8dp"  
        android:layout_marginTop="8dp"  
        android:text="Click"  
        app:layout_constraintBottom_toBottomOf="parent"  
        app:layout_constraintEnd_toEndOf="parent"  
        app:layout_constraintStart_toStartOf="parent"  
        app:layout_constraintTop_toBottomOf="@+id/textView"  
        app:layout_constraintVertical_bias="0.77" />  
  
</android.support.constraint.ConstraintLayout> 



3.SecondActivity.kt


import android.content.Intent  
import android.support.v7.app.AppCompatActivity  
import android.os.Bundle  
import android.widget.Toast  
import kotlinx.android.synthetic.main.activity_second.*  
  
class SecondActivity : AppCompatActivity() {  
  
    override fun onCreate(savedInstanceState: Bundle?) {  
        super.onCreate(savedInstanceState)  
        setContentView(R.layout.activity_second)  
  
        val bundle:Bundle = intent.extras  
        val id = bundle.get("id_value")  
        val language = bundle.get("language_value")  
        Toast.makeText(applicationContext,id.toString()+" "+language,Toast.LENGTH_LONG).show()  
        button2.setOnClickListener(){  
            intent = Intent(this,MainActivity::class.java)  
            startActivity(intent)  
        }  
    }  
}  


4.activity_second:


<?xml version="1.0" encoding="utf-8"?>  
<android.support.constraint.ConstraintLayout 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"  
    tools:context="example.javatpoint.com.kotlinexplicitintent.SecondActivity">  
  
    <TextView  
        android:id="@+id/textView2"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:layout_marginBottom="8dp"  
        android:layout_marginEnd="8dp"  
        android:layout_marginStart="8dp"  
        android:layout_marginTop="8dp"  
        android:text="SecondActivity"  
        android:textSize="18sp"  
        app:layout_constraintBottom_toBottomOf="parent"  
        app:layout_constraintEnd_toEndOf="parent"  
        app:layout_constraintStart_toStartOf="parent"  
        app:layout_constraintTop_toTopOf="parent"  
        app:layout_constraintVertical_bias="0.107" />  
  
    <Button  
        android:id="@+id/button2"  
        android:layout_width="wrap_content"  
        android:layout_height="wrap_content"  
        android:layout_marginBottom="8dp"  
        android:layout_marginEnd="8dp"  
        android:layout_marginStart="8dp"  
        android:layout_marginTop="8dp"  
        android:text="back"  
        app:layout_constraintBottom_toBottomOf="parent"  
        app:layout_constraintEnd_toEndOf="parent"  
        app:layout_constraintStart_toStartOf="parent"  
        app:layout_constraintTop_toTopOf="parent"  
        app:layout_constraintVertical_bias="0.774" />  
</android.support.constraint.ConstraintLayout>  



5.AndroidManifest.xml:


<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.akash.spinnersqlite">

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

  <activity android:name=".SecondActivity"/>
    </application>

</manifest>





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