android: changing option menu items programmatically

Question

Is it possible to change the option menu items programmatically? Can anyone provide me with an example please?

Also, I want to disable certain items, so that they do

Answer 1

Kotlin Code for accessing toolbar OptionsMenu items programmatically & change the text/icon ,..:

1-We have our menu item in menu items file like: menu.xml, sample code for this:

2- Define a variable for accessing menu object in class :

var menu: Menu? = null

3- initial it in onCreateOptionsMenu :

override fun onCreateOptionsMenu(menu: Menu): Boolean {
    // Inflate the menu; this adds items to the action bar if it is present.
    menuInflater.inflate(R.menu.main, menu)
    this.menu = menu
    return true
}

4- Access the menu items inside your code or fun :

private fun initialBalanceMenuItemOnToolbar() {
var menuItemBalance = menu?.findItem(R.id.balance)
    menuItemBalance?.title = Balance?.toString() ?: 0.toString()
    // for change icon : menuWalletBalance?.icon
}