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:


1 comment:

Anonymous said...

Small thing, if you create a new folder in your res folder and name it "layout_land", you can create landscape layouts (with the same names as their portrait layout in res/layout) and as he will automatically switch between those two layouts without any additional effort in your java class.

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