CODEWITHSUNDEEP
javaandroidbutton
Fionnuala
Fionnuala

Reputation: 77

Back button to go to previous page

I am trying to create a back button to return to the previous screen. I have a next button which moves from the current screen (screen2) to the next screen (screen4) however I want a back button to do the reverse process .. i.e to return to screen 2. I have called the button and named the id. I was wondering could anyone tell me why the code below isn't working.. The code is as follows: 

Button backbutton;

        backbutton = (Button) findViewById(R.id.back_button);       
        backbutton.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                setContentView(R.layout.screen2);

            }
        });

`

Upvotes: 1

Views: 663

Answers (4)

Enamul Haque
Enamul Haque

Reputation: 5053

Call this method onBackPressed(); when you are click button.

 backbutton = (Button) findViewById(R.id.back_button);       
    backbutton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {
       onBackPressed();

       }
    });`

Upvotes: 0

Dean
Dean

Reputation: 123

If you are trying to make this button act the same as the regular back button on the Android device itself you can make use of the onBackPressed() method

So your code would be something like this:

backbutton = (Button) findViewById(R.id.back_button);       
backbutton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {
        onBackPressed(); //OPTION 1: If in an activity
        getActivity().onBackPressed();  //OPTION 2: If in a fragment
    }
});

Choose whichever line of code suits your needs depending on where you are, in activity vs in fragment.

Upvotes: 3

MadScientist
MadScientist

Reputation: 2164

You can simple call the onBackPressed() system method inside your onClickListener interface.

something like this:

backbutton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {
        onBackPressed();
    }
});

Upvotes: 0

Marzi Heidari
Marzi Heidari

Reputation: 2730

Just finish activity

backbutton = (Button) findViewById(R.id.back_button);       
backbutton.setOnClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View v) {
        finish();

    }
});

Upvotes: 0

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