Android Implicit Intent Example

Intent is a messaging object you can use to request an action from another app component Or Intent Specfies an intentation to launch component .

Although intents facilitate communication between components in several ways, there are three fundamental use cases:

1.   Starting an Activity .
2.   Starting a Service .
3.   Delivering Broadcast .

There are two types of intent 

1.   Implicit Intent .
2.   Explicit Intent .

Implicit Intent: - Implicit intent do not directly specify the Android components which should be called.
They specify the action which should be performed and optionally an URI which should be used for this action.

Some of the Pr-packaged Application Like :

•  Call a number .
•  Browse the web for a given URL.
•  Sending Email to a given email .

 and many more ...

Lets See an Example

Project Detail

Project Name	ImplicitIntent
Package	com.tutorialsbuzz.implicitintent
Min Sdk Version	15
Target Sdk Version	26
Compile Sdk Version	26
Theme	Theme.AppCompat.Light.DarkActionBar

Project Structure :

file : build.gradle

 apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.tutorialsbuzz.implicitintent"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

file : 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="16dp"
tools:context="com.tutorialsbuzz.implicitintent.MainActivity">

<Button
    android:id="@+id/browse_button_id"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:text="@string/button_label"
    android:textSize="22sp" />
</LinearLayout>

file : MainActivity.java

 package com.tutorialsbuzz.implicitintent;

import android.content.Intent;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button button = findViewById(R.id.browse_button_id);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Uri uriUrl = Uri.parse("https://www.google.com");
                Intent browse_intent = new Intent(Intent.ACTION_VIEW, uriUrl);
                startActivity(browse_intent);
            }
        });

    }
}

file : AndroidManifest.xml

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

    <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>
    </application>

</manifest>

RUN: