How to implement android Toolbar Back button

Question

I am using a custom toolbar. I need to add back button to it. Now I am using this code to add the back button.

Toolbar toolbar = (Toolbar) getActivity().find         


        

Answer 1

use Method in Class your Activity

private void setupToolbar(){
  Toolbar toolbar=(Toolbar)findViewById(R.id.toolbar);
       setSupportActionBar(toolbar);
       ActionBar actionBar=getSupportActionBar();
       actionBar.setDisplayHomeAsUpEnabled(true);
       actionBar.setDisplayShowHomeEnabled(true);
       toolbar.setNavigationOnClickListener(new View.OnClickListener() {
   @Override
          public void onClick(View v) {  
           finish();  
             }
               });
              }