How to display and set click event on Back Arrow on Toolbar?

Question

How can I set back arrow in Android toolbar and also apply click listener?

Answer 1

Add this

 Toolbar toolbar = (Toolbar) findViewById(R.id.my_awesome_toolbar);
 setSupportActionBar(toolbar);
 getSupportActionBar().setDisplayHomeAsUpEnabled(true);
 getSupportActionBar().setDisplayShowHomeEnabled(true);

and in onOptionsItemSelected add this

 @Override
public boolean onOptionsItemSelected(MenuItem item) {
    switch (item.getItemId()) {
        case android.R.id.home:
            finish();
            return true;
        default:
            return super.onOptionsItemSelected(item);
    }
}

Check this

Display Back Arrow on Toolbar Android

http://developer.android.com/intl/es/training/implementing-navigation/ancestral.html