Kotlin Android Implicit Intent

Android Implicit Intent invokes the component of another app to handle the request. It does not specify the component name specifically.

For example, if we want to share data using Intent, it invokes the relevant component to fulfill the request.

intent = Intent(Intent.ACTION_VIEW)
intent.setData(Uri.parse("https://www.javatpoint.com/"))
startActivity(intent)

intent= Intent(Intent.ACTION_VIEW, Uri.parse("https://www.javatpoint.com/"))
startActivity(intent)

Kotlin Android Implicit Intent Example Invoking URL

In this example, we will invoke the URL using Implicit Intent clicking on Button.

activity_main.xml

Add the following code in activity_main.xml file. In this activity, we use a Button to invoke Intent.

<?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.kotlinimplicitintent.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="Your 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 to invoke intent"
        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>

MainActivity.kt

Add the following code in the MainActivity.kt class. In this class, we are invoking the URL on clicking the button using Implicit Intent. To invoke this intent, we are passing the action type and URL. The startActivity() method is used to start the Intent.

package example.javatpoint.com.kotlinimplicitintent

import android.content.Intent
import android.net.Uri
import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        button.setOnClickListener(){
            intent = Intent(Intent.ACTION_VIEW)
            intent.setData(Uri.parse("https://www.javatpoint.com/"))
            startActivity(intent)
            /*  intent= Intent(Intent.ACTION_VIEW, Uri.parse("https://www.javatpoint.com/"))
            startActivity(intent)*/
        }
    }
}

Output: