如何将 OnClickListener 设置为 ListView 内的按钮，该按钮也具有项目的 id

Question

I am creating an app that tracks the inventory for a shop. The layout consists of a ListView that has a sale button for each item, and on clicking the sale button, the quantity of the item should be decreased by one and be updated in database. So my question is how do i set the onClickListener to the button so that it also receives the id of the item for which the sale button was clicked for, as it will enable me to update only the specific item in the database.

Answer 1

This is an sample example

The Button in the fxml file must have an fx:id so that you can use the button properties in the code behind

it looks like this

<Button fx:id="myButton"/>

and then you can use it (eg in your controller) like that

myButton.setOnClickListener(new OnClickListener(){
         public void onClick(View v) {
         // TODO
         }
});

please check this also setOnClickListener