Set Popup menu to full screen

Question

Note : This is popup menu not popup window.So I request you all to read carefully.

I have implemented pop menu. It is displaying in half of the screen. I want to spread this to entire width of device. I tried to change its style by setting layout_width as match_parent but with no success.

Below is what I tried so far:

Style

 <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->

        <item name="popupMenuStyle">@style/PopupMenu</item>
    </style>

  <!-- Change Overflow Menu Background -->
    <style name="PopupMenu" parent="android:Widget.Holo.Light.ListPopupWindow">
        <item name="android:popupBackground">#888888</item>
        <item name="android:layout_width">match_parent</item>
    </style>

Below is my java code:

  PopupMenu menu = new PopupMenu(getActivity(), tvnext);


    for (int i = 0; i < array.size(); i++) {

        menu.getMenu().add(1, i, 1, array.get(i).getAccountName());

    }


    menu.show();

    menu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
        @Override
        public boolean onMenuItemClick(MenuItem item) {
            setUpNextFunctionality(item.getItemId());


            return false;
        }
    });

P.S : Please don't suggest me to use popup window. This is my last option if nothing work.

Answer 1

I got your question. Instead of modify something use new widget which can easily fulfill your necessary and compatible with newer version.

Google introduce new Material concept as Bottom-Sheet

To use it in android you can use git hub libraries like this.

Answer 2

I don't think you can do that without implementing of your own popup window similar to PopupMenu. If you will check MenuPopupHelper::createPopup:

@NonNull
private MenuPopup createPopup() {
    final WindowManager windowManager = (WindowManager) mContext.getSystemService(
            Context.WINDOW_SERVICE);
    final Display display = windowManager.getDefaultDisplay();
    final Point displaySize = new Point();

    if (Build.VERSION.SDK_INT >= 17) {
        display.getRealSize(displaySize);
    } else if (Build.VERSION.SDK_INT >= 13) {
        display.getSize(displaySize);
    } else {
        displaySize.set(display.getWidth(), display.getHeight());
    }

    final int smallestWidth = Math.min(displaySize.x, displaySize.y);
    final int minSmallestWidthCascading = mContext.getResources().getDimensionPixelSize(
            R.dimen.abc_cascading_menus_min_smallest_width);
    final boolean enableCascadingSubmenus = smallestWidth >= minSmallestWidthCascading;

    final MenuPopup popup;
    if (enableCascadingSubmenus) {
        popup = new CascadingMenuPopup(mContext, mAnchorView, mPopupStyleAttr,
                mPopupStyleRes, mOverflowOnly);
    } else {
        popup = new StandardMenuPopup(mContext, mMenu, mAnchorView, mPopupStyleAttr,
                mPopupStyleRes, mOverflowOnly);
    }

    // Assign immutable properties.
    popup.addMenu(mMenu);
    popup.setOnDismissListener(mInternalOnDismissListener);

    // Assign mutable properties. These may be reassigned later.
    popup.setAnchorView(mAnchorView);
    popup.setCallback(mPresenterCallback);
    popup.setForceShowIcon(mForceShowIcon);
    popup.setGravity(mDropDownGravity);

    return popup;
}

you will see that size of PopupMenu kind of hardcoded as per display size. So probably easy way is to check PopupMenu related source code and implement something similar, but with sizes which you'd like to have.