Android. How to use composable TextField from Java code?

Question

I have custom composable InputTextField. I needed to use this field to enter text from Java code. For this I created a helper method in Kotlin:

fun ComposeView.initInputField(
    text: String,
    onValueChanged: (String) -> Unit,
    isEditable: Boolean = true,
) {
    setContent {
        RncbTheme {
            InputTextField(
                text = text, 
                onValueChange = onValueChanged,
                isEditable = isEditable,
             )
    }
}

Here is my java code:

 @Override
    public void initComposeInputFiled(String initialText) {
 
        InputFieldKt.initInputField(composeInputView, initialText, s -> {
            // onValueChange
            return Unit.INSTANCE;
        });
    }

The problem is that I don't quite understand how to manage this field from Java code. Should I call the initComposeInputFiled method every time if I need to write a specific value to a field ? And how can you get the current value that is entered into a field from Java code?

Please, help me.