How to add badges on Toolbar MenuItem Icons

Question

I tried to find an answer for myself but couldn\'t find it.

I need make badge on the MenuItem icon in the Toolbar, like this:

How can I make this?

Answer 1

Here is step by step functionality:

add menu.xml

Then add notification_layout.xml, this layout will be used as the notification icons layout

now inside Activity

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

    final View notificaitons = menu.findItem(R.id.actionNotifications).getActionView();

    txtViewCount = (TextView) notificaitons.findViewById(R.id.txtCount);
    updateHotCount(count++);
    txtViewCount.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            updateHotCount(count++);
        }
    });
    notificaitons.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
    //    TODO
        }
    });


    return true;
}

You can put following function (taken from stackoverflow) inside the activity to update counter:

    public void updateHotCount(final int new_hot_number) {
    count = new_hot_number;
    if (count < 0) return;
    runOnUiThread(new Runnable() {
        @Override
        public void run() {
            if (count == 0)
                txtViewCount.setVisibility(View.GONE);
            else {
                txtViewCount.setVisibility(View.VISIBLE);
                txtViewCount.setText(Integer.toString(count));
                // supportInvalidateOptionsMenu();
            }
        }
    });
}