使用editText的PopupWindow showAtLocation在键盘出现时不会保持位置

View rootView = findViewById(android.R.id.content);
rootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
    @Override
    public void onGlobalLayout() {
        // 获取屏幕高度
        int screenHeight = rootView.getRootView().getHeight();
        // 获取键盘高度
        int keyboardHeight = screenHeight - rootView.getHeight();
        // 根据键盘高度调整PopupWindow的位置
        adjustPopupWindowPosition(keyboardHeight);
    }
});

private void adjustPopupWindowPosition(int keyboardHeight) {
    // 获取PopupWindow的高度
    int popupWindowHeight = popupWindow.getHeight();
    // 计算PopupWindow的y轴偏移量
    int offsetY = keyboardHeight - popupWindowHeight;
    // 设置PopupWindow的y轴偏移量
    popupWindow.update(0, offsetY);
}

popupWindow.showAtLocation(anchorView, Gravity.BOTTOM, 0, 0);