Android Tutorial for Beginners – How to Start New Activity On Button Click via Intent




Android Tutorial
Android Tutorial

In this tutorial we will learn How to Start New Activity On Button Click via Intent

 

Step 1 – Create new Android project

Step 2 – Add a button to main activity (layout/activity_main.xml) using designer.

 

Step 3 Add the new activity . Right Click Project -> New -> Activity -> Blank Activity

Give the name to your activity  SecondActivity

 

create blank activity
create blank activity

 

Change the background color of SecondActivity if you wish.

 

write the following code

src/main/AndroidManifest.xml

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

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

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".SecondActivity"
            android:label="@string/title_activity_second" >
            <intent-filter>
                <action android:name="com.example.programmingknowledge.thefirstapp.SecondActivity" />

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

</manifest>

 

layout/activity_main.xml

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

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Open Second Activity"
        android:id="@+id/button"
        android:layout_gravity="center_horizontal"
        android:layout_alignParentTop="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_marginLeft="62dp"
        android:layout_marginStart="62dp"
        android:layout_marginTop="205dp" />
</RelativeLayout>

 

layout/activity_second.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.programmingknowledge.thefirstapp.SecondActivity"
    android:background="#ff80ff3c">

</RelativeLayout>

 

com/example/programmingknowledge/thefirstapp/MainActivity.java

package com.example.programmingknowledge.thefirstapp;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;

public class MainActivity extends ActionBarActivity {
      private static  Button button_sbm;
      @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
          OnClickButtonListener();
    }

    public void OnClickButtonListener() {
        button_sbm = (Button)findViewById(R.id.button);
        button_sbm.setOnClickListener(
                new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        Intent intent = new Intent("com.example.programmingknowledge.thefirstapp.SecondActivity");
                        startActivity(intent);
                    }
                }
        );

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

 

com/example/programmingknowledge/thefirstapp/SecondActivity.java

package com.example.programmingknowledge.thefirstapp;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;


public class SecondActivity extends ActionBarActivity {

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


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_second, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

 

OUTPUT:

layout/activity_main.xml
layout/activity_main.xml
layout/activity_second.xml
layout/activity_second.xml

 

Download Project File

 

 

 

 

 

 

 

 

 

 

 


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1 Comment

  1. Hello Sir, I have started learning Android Programming from your great and very interesting videos. Now I want to make an app in which i can store time and date from internet i.e. from online server in database table using PHP. So can you make its video or help me in it by showing code and guiding me how to implement that code in Android Studio for making it execute perfectly.´╗┐ I will be thankful to you if you help me in this task. Your great fan, Huzefa Vakhariya.

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