Question

Have 4 buttons in android studio and a picture.

Answer 1

Here i have create different three activities

MainActivity for main output, OtherNews for other news and third one is MessagesPage for display entertainment channel

Code MainActivity.java

package com.example.buttondemo;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.net.Uri;

public class MainActivity extends Activity {
   Button btncnn,btnnytimes,btnothernews,btnmessage;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//total foutr button as per your requirment
btncnn=(Button)findViewById(R.id.button1);//for cnn channel
btnnytimes=(Button)findViewById(R.id.button2);//for nytimes channel
        btnothernews=(Button)findViewById(R.id.button3);//for othernews channel
       btnmessage=(Button)findViewById(R.id.button4);//for message button
      
btncnn.setOnClickListener(new OnClickListener() {      
           @Override
           public void onClick(View arg0) {//when user click on button intent fire
               Intent CNNChannel=new Intent(Intent.ACTION_VIEW,Uri.parse("https://edition.cnn.com/"));
           startActivity(CNNChannel);      
           }
       });  
btnnytimes.setOnClickListener(new OnClickListener() {//when user click on button intent fire      
           @Override
           public void onClick(View arg0) {//when user click on button intent fire
               Intent CNNChannel=new Intent(Intent.ACTION_VIEW,Uri.parse("https://www.nytimes.com/"));
           startActivity(CNNChannel);      
           }
       });  
btnothernews.setOnClickListener(new OnClickListener() {   //when user click on button intent fire  
           @Override
           public void onClick(View arg0) {//when user click on button intent fire and go to othernews activityes
               Intent myIntent = new Intent(MainActivity.this,OtherNews.class);
startActivityForResult(myIntent, 0);      
           }
       });  
btnmessage.setOnClickListener(new OnClickListener() {   //when user click on button intent fire  
           @Override
           public void onClick(View arg0) {//when user click on button intent fire and go to messagepage activity
               Intent myIntent = new Intent(MainActivity.this,MessagesPage.class);
startActivityForResult(myIntent, 0);      
           }
       });  
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
  
}

Code activity_main.xml file

<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/imageView1"
android:layout_below="@+id/imageView1"
android:layout_marginTop="27dp"
android:text="Click For CNN News!" />

<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="24dp"
android:layout_marginTop="29dp"
android:src="@drawable/images" />

<Button
android:id="@+id/button4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/button3"
android:layout_alignRight="@+id/button2"
android:layout_below="@+id/button3"
android:text="Click For Messages!" />

<Button
android:id="@+id/button3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/button2"
android:layout_alignRight="@+id/button2"
android:layout_below="@+id/button2"
android:text="Click For Other News!" />

<Button
android:id="@+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/button1"
android:layout_below="@+id/button1"
android:text="Click For NYTIMES NEWS!" />

</RelativeLayout>

Code OtherNews.java

package com.example.buttondemo;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class OtherNews extends Activity {
   Button btnsport,btnmessage;//button for sport and message
   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_other_news);
       btnsport=(Button)findViewById(R.id.button1);
       btnmessage=(Button)findViewById(R.id.button2);
       //on click event
       btnsport.setOnClickListener(new OnClickListener() {      
           @Override
           public void onClick(View arg0) {//when user click on button intent fire
               Intent SPORTChannel=new Intent(Intent.ACTION_VIEW,Uri.parse("https://www.skysports.com/watch/sky-sports-cricket"));
           startActivity(SPORTChannel);      
           }
       });  
       btnmessage.setOnClickListener(new OnClickListener() {      
           @Override
           public void onClick(View arg0) {// when user click on button message display with toast
               Toast toast = Toast.makeText(getApplicationContext(),
               "This is a Others news Activity and click above button so you can watch sports channel",
               Toast.LENGTH_SHORT);
              
               toast.show();
           }
       });  
   }

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

}

Code activity_other_news.xml file

<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".OtherNews" >

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="41dp"
android:layout_marginTop="63dp"
android:text="SportChannel" />

<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/button1"
android:layout_below="@+id/button1"
android:layout_marginTop="21dp"
android:text="SportMessage" />

</RelativeLayout>

code MessagesPage.java

package com.example.buttondemo;

import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class MessagesPage extends Activity {
   Button btnentertainment,btnmessage;
   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_messages_page);
       btnentertainment=(Button)findViewById(R.id.button1);
       btnmessage=(Button)findViewById(R.id.button2);
       btnentertainment.setOnClickListener(new OnClickListener() {      
           @Override
           public void onClick(View arg0) {//when user click on button intent fire
               Intent SPORTChannel=new Intent(Intent.ACTION_VIEW,Uri.parse("https://indianexpress.com/section/entertainment/"));
           startActivity(SPORTChannel);      
           }
       });  
       btnmessage.setOnClickListener(new OnClickListener() {      
           @Override
           public void onClick(View arg0) {// when user click on button message display with toast
               Toast toast = Toast.makeText(getApplicationContext(),
               "This is a entertainment news Activity and click above button so you can wathes entertainment channel",
               Toast.LENGTH_SHORT);
              
               toast.show();
           }
       });  
   }

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

}

Code activity_messages_page.xml file

<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"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MessagesPage" >

<Button
android:id="@+id/button1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="45dp"
android:layout_marginTop="41dp"
android:text="Entertainment News" />

<Button
android:id="@+id/button2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/button1"
android:layout_below="@+id/button1"
android:layout_marginTop="36dp"
android:text="Message entertainment" />

</RelativeLayout>

ShreenShot Of Code:

Package Explorer3 日与▽ーロ D MainActivityjava X DOtherNews.jav D Messages Page.Java MainActivity java MessagesPage.java OtherNews java e btnnn.setonClickListener (new OnClickLiatener) t public void onClick (View arg) //when user click on button intent fire comecampi MainActivity btncnn a btnnyti 쇼 btnotho a btnmes ▲ onCrea Intent CNNChannl-new Intent (Intent.ACTIONVIER, Uri.parse ("https://edition.cnn.com/")) gen [Generated Java Files] Android 4.4 startAcrivitY (CNNChannel): android.jar DAadt-bundle-windows-64bi Android Private Libraries btnnytineg.3etOnClickListener (new OnClickし13tener() {//when uฮer click on button 1ntent fire bin libs res Button event public void onClick (View argo) //when user click on button intent fire Intent CNNChannel-new Intent (Intent. ACTION VIER, Uri.parse("https:/.nyeimes.com/")) startActivitY (CNNChannel) drawable-hdpi ic launcher.png nothernews.setOnClickListener (new OnClickListener() { //when u er click on button intent fire eOverride publie void onclick (View argo) //when user click on button intent fire and go to otheznews drawable-mdpi b drawable-xhdpi This images store in imageviewer Intent myIntentnew Intent (Mainactivity.this, OtherNews.elass) startictivityEorResult (myIntent, o) e onCrea drawable-xhdpi layout activity _main.xml btnmessage.setOnClickListener (new OnClickListener //when user click on button intent fire activity other_news.aml values values-sw720dp-land publie void onClick (View argo //when user click on button intent fire and go to messagepags b menu Intent myIntentnew Intent (Mainctivity. this, Messages Page.olass) startActivityForResult (myIntent, 0) values-v11 b values-v14 ic-launcher-web.png proguard-project.bt Problems@ Javadoc Declaration Console DLogcat 3

Package Explorer 日与▽-B D MainActivityjava D otherNews.java D MessagesPage.java 团MainActivityjava package com.example.buttondemo 团MessagesPagejava ㊥ import android. net .Uri; OtherNews.java file with two button com.c gen [Generated Java Files] Android 4.4 publie class OtherNews extends Activity Other Button bensport, benmessage://button for sport and message eoverride protected void onCreate (Bundle ธavedInstanceState) { android jar- D-ladt-bundle-windows-64b Android Private Libraries assets super.onCreate (savedInstanceState) setcontentview (R.layout.activity other nevs) bensport-(Button)findViewById (R.id.buttoni) btnmessage- (Button) findviewById (R.id.button2): //on click event btnsport.setonClickListener (new OnClickL1stener O * ic-launcher.png images.png goverridel public void onClick (View argo)//when user click on button intent fire drawable-ldpi Intent SPORTChannel-new Intent (Intent. ACTION VIER, Uri.parse ("https://www.skysports drawable-xhdpi startActivity (SPORTChannel): 4layout activity.main.am btnmessage.setonClickListener (new OnClickListener O gOverride public void onClick (view argo) activity-other-news.xml when user click on button message display with toast Toast toast = Ioast.makeText (getApplicationContext(), menu values values-sw600dp values-sw720dp-land "This is a others news Activity and elick above button so you can watch s Toast. LENGTH SHORT): toast.show) > values-v11 Dvalues-v14 tu Problems @ Javadoc Declaration曰Console DLogCatX proguard-project.bt

Package Explorer X 曰女▽- | D MainActvrtyjava 10 OtherNews Java D Messages PageJava 23 MainActivity java 曰唱祝) DMessagesPage,java DOtherNews.java gen [Generated Java Files] publie elass MessagesPage extends Activity Button btnentertainment, btrmessage: override proteeted void onCreate (Bundle savedInstanceState) Mes Android 44 MessagesPage.java with two buttons super. onCreate (savedlnรtances tate) ; setContentView(R.layout.activity messages_page) btnentertainment-(Button) findviewByid (R.id.buttoni) btnmessage- (Button) findViewById (R.id.button2) btnentertainment.setonClickListener (new OnClickListener) androidjar D:ladt-bundle-windows-64bi Android Private Libraries , bin libs res override public void onClick (View argo)//when user click on button intent fire Intent SPORTChannel-new Intent (Intent. ACTION VIER, Uri.parse ("https://indianexpress ic_launcher.png imagespng startActivity (SPORTchannel); When user click on sportChannel button browser open and link fire of btnmessage.setonClickListener (new OnClickLis override public void onClick (View aro) // when user click on button message display with toast drawable-xxhdpi layout Toast toastToast.makeText (getApplicationContext, activity.main.xm "This is a entertainment news Activity and eliek above button so you can wa Toast.LENGTH SHORT) activity_other_news.xml menu values values-sw600dp toast.show ) values-v11 eoverride b values-v14 iclauncher-web.png proguard-project.bdt ft Problems @ Javadoc隐Declaration ] Console p LogCat 23

Output

5554 AndroidPhone 11-1:02 Basic Controls ButtonDEMO Hardware Buttons MENU DPAD not enabled in AVD Hardware Keyboard Use your physical keyboard to provide input Click For CNN News! Click For NYTIMES NEWS! Click For Other News! Click For Messages! MainActivity with four button and image view

5554 AndroidPhone :02Basic Controls IWI OtherNews Hardware Buttons MENU DPAD not enabled in AVD SportChannel SportMessage Hardware Keyboard Use your physical keyboard to provide input OtherNews Activity with two button for Sport channel and messages

5554:AndroidPhone 1:02Basic Controls MessagesPage Hardware Buttons MENU DPAD not enabled in AVD Entertainment News Message entertainment Hardwa Keyboard Use yourvsical keyboard to provide input When user click on MessagePage this activity (MessagePage) appear with two button

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