Button to go back to the previous page

Question

I want to make a button that allow user to go back to the previous page when click. Just work like the physical back button on the android device. What should I add to the java file?

here is the code(xml):

<Button
        android:id="@+id/button00"
        android:layout_width="80dp"
        android:layout_height="40dp"
        android:layout_marginTop="5dp"
        android:layout_marginBottom="5dp"
        android:layout_marginLeft="10dp"
        android:text="@string/st_pp"
        android:textColor="#01646d"
        android:background="#fef200"/>

here is the code(java):

bn00.setOnClickListener(new OnClickListener(){

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                Intent it1 = new Intent(getApplicationContext(), Main.class);
                startActivity(it1);
            }

        });

I put the method "cancelAction" in the onClick, then in my class I wrote `public void cancelAction(View v){ finish(); } ` ... works great. — Anna Billstrom, Jan 28 '14 at 21:13

Hardik Joshi · Accepted Answer · 2016-01-13T16:39:58.133

11

To go back to previous activity use finish() method. But note that previous activity not contains finish() while you call current activity.

Code :

bn00.setOnClickListener(new OnClickListener(){

            @Override
            public void onClick(View arg0) {

                finish();
            }

        });

Using above code you can go to your previous activity. You can also call finish() in onKeyDown() method like..

@Override
public boolean onKeyDown(int keyCode, KeyEvent event)  {
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
       finish();
        return true;
    }

    return super.onKeyDown(keyCode, event);
}

edited Jan 13 '16 at 16:39

answered Apr 19 '13 at 12:08

Hardik Joshi

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and I have a little problem that is how to set the translation between pages and pages? – 21.kaw Apr 19 '13 at 12:40
What you mean by translation ? – Hardik Joshi Apr 19 '13 at 12:41

score 1 · Answer 2 · answered Apr 19 '13 at 12:06

What you want is to use finish() on your current Activity. It will remove current Activity from the stack, display previous one and therefore it will work as back button.

bn00.setOnClickListener(new OnClickListener(){
    @Override
    public void onClick(View arg0) {
        finish();
    }
});

score 1 · Answer 3 · answered Apr 19 '13 at 12:07

1

You can just call a finish() to the current activity, it should go back to the previous one.

For further info see the javadoc

answered Apr 19 '13 at 12:07

Luiz Cavalcanti

243
1
6

string.Empty · Answer 4 · 2013-11-29T13:53:12.103

1

The finish(); method will end the current activity and show the previous.

But the onBackPressed(); method will press the back button. But the default implementation (without an Override) will call the finish(); method anyway.

edited Nov 29 '13 at 13:53

answered Apr 19 '13 at 12:16

string.Empty

10,393
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score 0 · Answer 5 · edited Apr 19 '13 at 12:09

0

bn00.setOnClickListener(new OnClickListener(){

            @Override
            public void onClick(View arg0) {
                // TODO Auto-generated method stub
                //Intent it1 = new Intent(getApplicationContext(), Main.class);
                //startActivity(it1);

                finish(); //just add this
            }

        });

edited Apr 19 '13 at 12:09

Dhaval Parmar

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answered Apr 19 '13 at 12:05

Changwei Yao

13,051
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score 0 · Answer 6 · answered Apr 19 '13 at 12:07

Android has a hardware back button which does the job. So i would recommend against have a button that does the same. When hardware back button is pressed the current activity in the back stack is popped, destroyed and the previous activity in the back stack takes focus.

You call finish() on button click as below

  bn00.setOnClickListener(new OnClickListener(){

        @Override
        public void onClick(View arg0) {
           finish();
        }

    });

score 0 · Answer 7 · answered Apr 19 '13 at 13:29

Instead of "bn00" write "button00" in your code because you have set "button00" as your button id in your xml. And as said by other's too, call finish() inside onClick() method. Which will end your current activity and load your previous activity which has not finished yet.

buttonn00.setOnClickListener(new OnClickListener(){

        @Override
        public void onClick(View arg0) {

            finish();
        }

    });

score 0 · Answer 8 · edited Apr 14 '23 at 07:02

0

In Kotlin, You just need:

bn00.setOnClickListener { finish() }

edited Apr 14 '23 at 07:02

Rumit Patel

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answered Apr 08 '23 at 16:33

Silesio Cipriano

11

Button to go back to the previous page

8 Answers8