Moving from one activity to another Activity in Android

Question

I want to move from one activity to another (using virtual device). When I click on button to move, My emulator ones a dialog box showing unfortunately SMS1 has stopped working (SMS1 is my app name).

Can anybody help me in correcting my code?

MainActivity.java:

package com.example.sms1;

 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.TextView;

 public class MainActivity extends Activity implements OnClickListener
 {

Button b1;
TextView tv1;
 @Override
 protected void onCreate(Bundle savedInstanceState)
 {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    b1 = (Button) findViewById(R.id.button1);
    tv1 = (TextView) findViewById(R.id.textView1);

    b1.setOnClickListener(this);

 }

@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;
}

@Override
public void onClick(View v)
{
    // TODO Auto-generated method stub
    Intent i = new Intent(getApplicationContext(),NextActivity.class);
    startActivity(i);
    setContentView(R.layout.avtivity_next);
}



}

Here is the NextActivity

package com.example.sms1;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.TextView;

public class NextActivity extends Activity {

TextView tv1;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.avtivity_next);
    tv1 = (TextView) findViewById(R.id.textView1);
}


@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;
}

}

Manifest.XML

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.sms1"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.sms1.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>
</application>

</manifest>

NextActivityLayout

<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=".NextActivity" >

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="next activity" />



</RelativeLayout>

MainActivity Layout

<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" >

<TextView
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/hello_world" />

<Button
    android:id="@+id/button1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textView1"
    android:layout_marginTop="80dp"
    android:layout_toRightOf="@+id/textView1"
    android:text="Button" />

</RelativeLayout>

have u define NextActivity in your manifest.xml file – Dixit Patel Jul 08 '13 at 12:27 — Dixit Patel, Jul 08 '13 at 12:27
there is no second activity in your menifest – farrukh Jul 08 '13 at 12:30 — farrukh, Jul 08 '13 at 12:30

score 27 · Answer 1 · edited Apr 03 '18 at 12:47

27

First You have to use this code in MainActivity.java class

@Override
public void onClick(View v)
{
    // TODO Auto-generated method stub
    Intent i = new Intent(getApplicationContext(),NextActivity.class);
    startActivity(i);

}

You can pass intent this way.

Second

add proper entry into manifest.xml file.

<activity android:name=".NextActivity" />

Now see what happens.

edited Apr 03 '18 at 12:47

Karan sharma

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answered Jul 08 '13 at 13:36

Harshid

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rachit · Accepted Answer · 2013-07-08T13:17:51.987

You haven't defined NextActivity in the AndroidManifest.xml file.

Add these lines in android manifest after</activity> tag. It should work.

<activity
    android:name=".NextActivity" >
</activity>

final code will be

<application
    android:allowBackup="true"
    android:icon="@drawable/app_icon"
    android:label="@string/app_name" >
    <activity
        android:name=".MainActivity"
        android:label="Main Activity" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

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

score 4 · Answer 3 · edited Jan 27 '15 at 05:59

button1 in activity2

code written in activity 2

button1.setOnClickListener(new View.OnClickListener() {         
        public void onClick(View v)
        {
            // starting background task to update product               
            Intent fp=new Intent(getApplicationContext(),activity1.class);              
            startActivity(fp);              
        }
    });

This might help

Jibran Khan · Answer 4 · 2013-07-08T12:38:06.960

3

Simply add your NextActivity in the Manifest.XML file

<activity
            android:name="com.example.sms1.NextActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
            </intent-filter>
        </activity>

edited Jul 08 '13 at 12:38

answered Jul 08 '13 at 12:30

Jibran Khan

3,236
4
37
50

If you can accept the answer so that it can be helpful for the community. – Jibran Khan Jul 08 '13 at 16:49

score 2 · Answer 5 · edited Feb 14 '14 at 05:39

2

public void onClick(View v)
{
 startActivity(new Intent(getApplicationContext(), Next.class));

}

it is direct way to move second activity and there is no need for call intent

edited Feb 14 '14 at 05:39

JasonMArcher

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answered Feb 14 '14 at 05:22

kishore

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1

score 2 · Answer 6 · answered Dec 05 '18 at 07:31

2

@Override
public void onClick(View v)
{
    // TODO Auto-generated method stub
    Intent intent = new Intent(Activity1.this,Activity2.class);
    startActivity(intent);

}

answered Dec 05 '18 at 07:31

Shweta Chandarana

325
2
6

Can you please edit your answer and tell us why and how your code fixes the issues. As it stands, "code only" answers are considered low quality. – DarkMukke Dec 05 '18 at 10:00
question is just moving from one activity to another and my answer exact the question is. – Shweta Chandarana Dec 05 '18 at 12:20

score 1 · Answer 7 · answered Jul 08 '13 at 12:47

1) place setContentView(R.layout.avtivity_next); to the next-activity's onCreate() method just like this (main) activity's onCreate()

2) if you have not defined the next-activity in your-apps manifest file then do this also, like:

<application
        android:allowBackup="true"
        android:icon="@drawable/app_icon"
        android:label="@string/app_name" >
        <activity
            android:name=".MainActivity"
            android:label="Main Activity" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".NextActivity"
            android:label="Next Activity" >
        </activity>
    </application>

You must have to perform the 2nd step every time you create a new activity, otherwise your app will crash

welcome; perhaps you should choose a best answer if you got the solution of your problem (by clicking the arrow along with that answer) — Husnain Iqbal, Jul 08 '13 at 18:33

score 1 · Answer 8 · edited Jul 25 '17 at 08:29

1

When you have to go from one page to another page in android changes made in 2 files

Intent intentSignUP = new Intent(this,SignUpActivity.class);
   startActivity(intentSignUP);

add activity in androidManifest file also like

 <activity android:name=".SignUpActivity"></activity>

edited Jul 25 '17 at 08:29

Rahul Khurana

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answered Jul 25 '17 at 06:49

Ashu

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score 0 · Answer 9 · answered Jul 08 '13 at 12:35

0

setContentView(R.layout.avtivity_next);

I think this line of code should be moved to the next activity...

answered Jul 08 '13 at 12:35

SoulMagnet

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score 0 · Answer 10 · edited Nov 09 '15 at 18:06

0

Below code is working fine with Android 4.3:

Intent i = new Intent(this,MainActivity2.class);
startActivity(i);

edited Nov 09 '15 at 18:06

Dorian

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answered Dec 28 '14 at 20:59

Debashis Nandi

11
1

score 0 · Answer 11 · edited Nov 25 '16 at 08:09

0

It is mainly due to unregistered activity in manifest file as "NextActivity" Firstly register NextActivity in Manifest like

<activity android:name=".NextActivity">

then use the code in the where you want

Intent intent=new Intent(MainActivity.this,NextActivity.class);
startActivity(intent);

where you have to call the NextActivity..

edited Nov 25 '16 at 08:09

Atiar Talukdar

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answered Feb 24 '16 at 09:53

Nilesh

1,013
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score 0 · Answer 12 · answered Nov 17 '16 at 22:13

0

First you have to declare the activity in Manifest. It is important. You can add this inside application like this.

answered Nov 17 '16 at 22:13

Farruh Habibullaev

2,342
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activity android:name=".NextActivity" > Then you can call Intent i = new Intent(this,MainActivity2.class); startActivity(i); – Farruh Habibullaev Nov 17 '16 at 22:13

score 0 · Answer 13 · edited May 12 '17 at 12:30

0

Register your java class on Android manifest file

After that write this code on button click

startActivity(new intent(MainActivity.this,NextActivity.class));

edited May 12 '17 at 12:30

IntelliJ Amiya

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answered Feb 09 '17 at 08:14

Ranjith Alappadan

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score -2 · Answer 14 · edited Sep 25 '17 at 10:58

-2

You can do

Intent i = new Intent(classname.this , targetclass.class);
startActivity(i);

edited Sep 25 '17 at 10:58

Paul Kertscher

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answered Sep 25 '17 at 10:23

Mudabbir Hussain

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Could you please elaborate *how* and *why* this solves the OPs question? – Paul Kertscher Sep 25 '17 at 10:28

Moving from one activity to another Activity in Android

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