How to change the text on the action bar

Question

Currently it just displays the name of the application and I want it to display something custom and be different for each screen in my app.

For example: my home scr

Answer 1

if u r using navigation bar to change fragment then u can add change it where u r changing Fragment like below example :

 public boolean onNavigationItemSelected(@NonNull MenuItem item) {
            switch (item.getItemId()) {
                case R.id.clientsidedrawer:
                    //    Toast.makeText(getApplicationContext(),"Client selected",Toast.LENGTH_SHORT).show();
                    getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new clients_fragment()).commit();
                    break;
    
                case R.id.affffdatasidedrawer:
                    getSupportActionBar().setTitle("Add Client");
                    getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new addclient_fragment()).commit();
                    break;
    
                case R.id.editid:
                    getSupportActionBar().setTitle("Edit Clients");
                    getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, new Editclient()).commit();
                    break;
    
                case R.id.taskid:
                    getSupportActionBar().setTitle("Task manager");
                    getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container,new Taskmanager()).commit();
                    break;

if u r using simple activity then just call :

getSupportActionBar().setTitle("Contact Us");

to change actionbar/toolbar color in activity use :

getSupportActionBar().setBackgroundDrawable(new ColorDrawable(Color.parseColor("#06023b")));

to set gradient to actionbar first create gradient : Example directry created > R.drawable.gradient_contactus

and then set it like this :

getSupportActionBar().setBackgroundDrawable(getResources().getDrawable(R.drawable.gradient_contactus));