Display back button of action bar is not going back in Android

Question

I am developing an Android app. I am using ActionBar with AppCompactActivity. In my app, I add back button to action bar. But when I click on it, it is not going back to the previous activity. For example, I start activity 2 from activity 1. Activity 2 contains action bar with back button. But when I click on action bar back button of activity 2, it is not going back to activity 1.

This is how I set action bar for activity 2:

public class EditProfileActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.edit_profile);
        Toolbar toolbar = (Toolbar)findViewById(R.id.profile_action_toolbar);
        setSupportActionBar(toolbar);
        setTitle("Edit Profile");
        ActionBar actionBar= getSupportActionBar();
        actionBar.setDisplayHomeAsUpEnabled(true);
    }
}

This is how I started activity 2 from activity 1:

Intent i = new Intent(MainActivity.this,SecondActivity.class);
                    startActivity(i);

It is not going back when I click this button

Why it is not going back?

Answer 1

Add the following to your activity.You have to handle the click event of the back button.

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