CODEWITHSUNDEEP
androidandroid-intentandroid-activity
Arjun Krishnan
Arjun Krishnan

Reputation: 359

android - How to close an activity on button click?

I want a button click to close an Activity. I am new to intents and and a little confused. This is ActivityOne which keeps a track of life cycle.
On a button press, it opens ActivityTwo and puts ActivityOne in background.
This works fine when I used this intent in my onClickListener: 

Intent myIntent = new Intent(ActivityOne.this, ActivityTwo.class);
ActivityOne.this.startActivity(myIntent);

In ActivityTwo I need to use intents and finish() method to close the activity. I tried to Google it and I thought this might work:

Intent myIntent2 = new Intent(getApplicationContext(), ActivityTwo.class);
ActivityTwo.this.finish(myIntent2);

It didn't work the full code is below:

public class ActivityOne extends Activity {

    // ...

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

        // ...

        Button launchActivityTwoButton = (Button) findViewById(R.id.bLaunchActivityTwo); 
        launchActivityTwoButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO:
                // Launch Activity Two
                // Hint: use Context's startActivity() method

                // Create an intent stating which Activity you would like to start
                Intent myIntent = new Intent(ActivityOne.this, ActivityTwo.class);

                // Launch the Activity using the intent
                ActivityOne.this.startActivity(myIntent);               
            }
        });

        // ...
    }
}

Activity 2:

public class ActivityTwo extends Activity {    

    // ...

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

        // ...

        Button closeButton = (Button) findViewById(R.id.bClose); 
        closeButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                // TODO:
                // This function closes Activity Two
                // Hint: use Context's finish() method
                Intent myIntent2 = new Intent(getApplicationContext(), ActivityTwo.class);
                ActivityTwo.this.finish(myIntent2);
            }
        });
        // ...
    }
}

Upvotes: 21

Views: 81996

Answers (5)

Pacific P. Regmi
Pacific P. Regmi

Reputation: 1607

Button exit= (Button) findViewById(R.id.yes);
exit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                MainActivity.this.finish();
            }
        });

Upvotes: 1

SMR
SMR

Reputation: 6736

Alright the best way to finish the current Activity is by using finish() method. So inside the onClick() of your button in the ActivityTwo you can do this.

closeButton.setOnClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            finish();
            //closes ActivityTwo
        }
});

no need to make new intents for finishing current Activity. Also note that pressing back will also finish your Activity.

Upvotes: 4

Namrata
Namrata

Reputation: 1684

@Arjun Krishnan you want to kill activityTwo?

try this 

 ActivityTwo.this.finish();

It would help you

Upvotes: 7

Waqas
Waqas

Reputation: 4489

Replace these two lines

Intent myIntent2=new Intent(getApplicationContext(),ActivityTwo.class); ActivityTwo.this.finish(myIntent2);

with this ActivityTwo.this.finish();

Upvotes: 2

Michael Yaworski
Michael Yaworski

Reputation: 13483

You want to close ActivityTwo when a button is clicked? Just use finish();

Full code for the button listener in ActivityTwo would be:

Button closeButton = (Button) findViewById(R.id.bClose); 
closeButton.setOnClickListener(new OnClickListener() {

    @Override
    public void onClick(View v) {

        // TODO:
        // This function closes Activity Two
        // Hint: use Context's finish() method
        finish();
    }
});

Upvotes: 54

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