Popup Menu in Android

The Android PopupMenu is a user interface component that displays a list of items or options in a pop-up dialog anchored to a specific view. PopupMenus are typically used to provide a list of actions or choices when a user interacts with a UI element, such as a button or an ImageView. They are a convenient way to offer additional functionality or options without cluttering the main screen.

Here’s how you can create and use a PopupMenu in Android:

Create a PopupMenu:

 // Initialize a new PopupMenu with the context and the anchor view
 PopupMenu popupMenu = new PopupMenu(this, anchorView);

• this refers to the context of your activity or fragment.
• anchorView is the view to which the PopupMenu will be anchored.

Inflate a Menu Resource:

 // Inflate a menu resource into the PopupMenu
 popupMenu.getMenuInflater().inflate(R.menu.popup_menu, popupMenu.getMenu());

• R.menu.popup_menu is the XML resource file defining the menu items for the PopupMenu. You should create this resource file in the res/menu directory.

Set Click Listeners: You can set click listeners for the items in the PopupMenu to handle user interactions:

 popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
     @Override
     public boolean onMenuItemClick(MenuItem item) {
         switch (item.getItemId()) {
             case R.id.menu_item_1:
                 // Handle menu item 1 click
                 return true;
             case R.id.menu_item_2:
                 // Handle menu item 2 click
                 return true;
             default:
                 return false;
         }
     }
 });

Show the PopupMenu:

 // Show the PopupMenu
 popupMenu.show();

• This will display the PopupMenu anchored to the specified view (e.g., a button or an ImageView), and the user can select an item from the menu.

1. (Optional) Handle Dismiss Event: You can also set an OnDismissListener to handle actions when the PopupMenu is dismissed:

 popupMenu.setOnDismissListener(new PopupMenu.OnDismissListener() {
     @Override
     public void onDismiss(PopupMenu menu) {
         // Handle PopupMenu dismissal
     }
 });

Here’s an example XML menu resource (res/menu/popup_menu.xml) that defines two menu items:

<!-- res/menu/popup_menu.xml -->
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/menu_item_1"
        android:title="Option 1" />
    <item
        android:id="@+id/menu_item_2"
        android:title="Option 2" />
</menu>

This example creates a PopupMenu with two menu items (“Option 1” and “Option 2”). When an item is clicked, the corresponding onMenuItemClick() method is called, allowing you to handle the user’s selection.

PopupMenus are a useful way to provide context-specific options or actions in your Android app’s user interface.