Notification Badge On Action Item Android

Question

I wana add a notification badge on the cart image placed in action bar and manipulate it programmatically. Any Help?

Answer 1

    **Create a custom_layout**

    ////////

    
    

        

        

    

    //////

    **Create badge_background**
    /////

    
    

        
        

    

    /////
    **Create main_menu**

////
    

        

    

/////
    **In MainActivty.java**

         int count = 0;
        TextView textCartItemCount;

/// build a method inside your MainActivity ////

     @Override
        public boolean onCreateOptionsMenu(Menu menu) {
            getMenuInflater().inflate(R.menu.main_menu, menu);

            final MenuItem menuItem = menu.findItem(R.id.action_cart);

            View actionView = MenuItemCompat.getActionView(menuItem);
            textCartItemCount = (TextView) actionView.findViewById(R.id.cart_badge);

            setupBadge();

            actionView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    onOptionsItemSelected(menuItem);
                }
            });

            return true;
        }

        @Override
        public boolean onOptionsItemSelected(MenuItem item) {

            switch (item.getItemId()) {

                case R.id.action_cart: {
                    // Do something
                    return true;
                }
            }
            return super.onOptionsItemSelected(item);
        }

        private void setupBadge() {
    ///make a button in MainActivty layout
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (count >= 0) {
                        textCartItemCount.setVisibility(View.VISIBLE);
                        textCartItemCount.setText(String.valueOf(++count));
                    } else {
                        textCartItemCount.setVisibility(View.GONE);`enter code here`
                    }

                }
            });