Intent | Technology Talks

In this post we will see how to write a simple android application to show usage of Intent.

Steps to be performed :

Add a new project

Open main.xml and drag and drop three Button controls and then rename their ids.
Or, Clear all the contents and paste the code provided below.


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:orientation="vertical" >

 <Button
 android:id="@+id/btnGallery"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="Show My Gallery" />

 <Button
 android:id="@+id/btnCallLog"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="Show My Call Log" />

 <Button
 android:id="@+id/btnContact"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="Show My Contacts" />

 <Button
 android:id="@+id/btnSearch"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="Show My Search" />

</LinearLayout>

Now lets code for these 4 buttons.
Open your Activity file.

Now code for each button like the code provided below.

</pre>
package com.suvendu.tutorial;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class IntentDemoActivity extends Activity {
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);

 Button myGalleryBtn=(Button)findViewById(R.id.btnGallery);
 Button myCallLogBtn=(Button)findViewById(R.id.btnCallLog);
 Button myContactBtn=(Button)findViewById(R.id.btnContact);
 Button mySearchBtn=(Button)findViewById(R.id.btnSearch);

 myGalleryBtn.setOnClickListener(new Button.OnClickListener(){

@Override
 public void onClick(View v) {

 Intent myIntent=new Intent();
 myIntent.setAction(Intent.ACTION_VIEW);
 myIntent.setData(android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI);
 startActivity(myIntent);

 }});

 myCallLogBtn.setOnClickListener(new Button.OnClickListener(){

@Override
 public void onClick(View v) {

 Intent myIntent=new Intent();
 myIntent.setAction(Intent.ACTION_CALL_BUTTON);
 startActivity(myIntent);

 }});
 myContactBtn.setOnClickListener(new Button.OnClickListener(){

@Override
 public void onClick(View v) {

 Intent myIntent=new Intent();
 myIntent.setAction(Intent.ACTION_VIEW);
 myIntent.setData(android.provider.Contacts.People.CONTENT_URI);
 startActivity(myIntent);

 }});
 mySearchBtn.setOnClickListener(new Button.OnClickListener(){

@Override
 public void onClick(View v) {

 Intent myIntent=new Intent();
 myIntent.setAction(Intent.ACTION_SEARCH);
 startActivity(myIntent);

 }});

 }
}

[Note: You have to change the package name with your original package name, you provided at the time of creating the project. Similarly, you have to change the class name too.]