Question

Assume i have four classes.Each class is having a button to do screen switching from one page to another page,well its working fine.But now im trying to close all the activities by clicking the button from the last page.I have tried that too, but its just closing only the last page.How to achieve this concept?

Please find my code for reference

Xit_demoActivity.java

public class Xit_demoActivity extends Activity {
/** Called when the activity is first created. */

Button btn1; 

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    btn1 = (Button)findViewById(R.id.button_1);
    btn1.setOnClickListener(new View.OnClickListener() {

    public void onClick(View v) {
    Intent myIntent = new Intent(v.getContext(), Class1.class);
    startActivity(myIntent);
        }
    });

Class1.java

public class Class1 extends Activity 
{

Button btn1;

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main1);

    btn1 = (Button)findViewById(R.id.button_2);
    btn1.setOnClickListener(new View.OnClickListener() {

    public void onClick(View v) {
    Intent myIntent = new Intent(v.getContext(), Class2.class);
    startActivity(myIntent);
        }
    });

Class2.java

public class Class2 extends Activity 
{

Button btn1;

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main2);


    btn1 = (Button)findViewById(R.id.button_3);
    btn1.setOnClickListener(new View.OnClickListener() {

    public void onClick(View v) {
    Intent myIntent = new Intent(v.getContext(), Class3.class);
    startActivity(myIntent);
        }
    });

Class3.java

public class Class3 extends Activity 
{
@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.main3);

    Button next = (Button) findViewById(R.id.button_4);
    next.setOnClickListener(new View.OnClickListener() {

    public void onClick(View v) 
    {
        Intent intent = new Intent();
        setResult(RESULT_OK, intent);
        finish();
        }
    });

Manifest.xml

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

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

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name" >
    <activity
        android:name=".Xit_demoActivity"
        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=".Class1"></activity>

    <activity
        android:name=".Class1"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN1" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity><activity android:name=".Class2"></activity>



    <activity
        android:name=".Class2"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN2" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity><activity android:name=".Class3"></activity>

    <activity
        android:name=".Class3"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN3" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>


 </application>

</manifest>

Thanks for your time!..

Answer 1

Simply try this. Consider your Class3.java is your last Activitiy And, in Button of next use below code –

Intent intent = new Intent(currentActivity.this, XitActivity.class); // instead of XitActivity use your first activity
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("EXIT", true);
startActivity(intent);

And, in your Xit_demoActivity‘s onCreate() use below code –

if (getIntent().getBooleanExtra("EXIT", false)) {
    finish();
}

Hope this will helps you to exit you from all activities.