弹出菜单没有膨胀

Question

如何使用 OnMenuItemClickListeners 创建自定义弹出菜单 class？我似乎找不到任何使用单独 class 的答案。他们都在他们的活动中这样做，但我想要一个单独的弹出菜单 class。

我试过创建它：

public class AddPhotoMenu extends PopupMenu {
    public AddPhotoMenu(Context context, View anchor) {
        super(context, anchor);
    }

    @Override
    public void inflate(int menuRes) {
        super.inflate(R.menu.popup_menu_fragevent_addphotos);
    }

    @Override
    public void setOnMenuItemClickListener(OnMenuItemClickListener listener) {
        new OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem item) {
                switch (item.getItemId()) {
                    case R.id.popup_menu_fragevent_takephoto:
                        //Inflate a layout
                        Log.d(TAG, "onMenuItemClick: Take photo");

                        break;
                    case R.id.popup_menu_fragevent_selectphotos:
                        //Inflate a layout

                        Log.d(TAG, "onMenuItemClick: Select photo");
                        break;

                }
                return false;
            }
        };
    }

但是当我调用菜单时菜单没有展开。

 AddPhotoMenu addPhotoMenu = new AddPhotoMenu(this, mAddPhotosButton1);
 addPhotoMenu.show();

Answer 1

假设您有一个按钮，单击该按钮将显示弹出菜单。按照此操作来扩充自定义弹出菜单。

Button btn = (Button) findViewById(R.id.btn);   
btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            PopupMenu popup = new PopupMenu(MainActivity.this, v);
            popup.getMenuInflater().inflate(R.menu.popup_menu_fragevent_addphotos, popup.getMenu());

            popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
                public boolean onMenuItemClick(MenuItem item) {
                    switch (item.getItemId()) {
                    case R.id.popup_menu_fragevent_takephoto:
                        //Inflate a layout
                        Log.d(TAG, "onMenuItemClick: Take photo");

                        return true;
                    case R.id.popup_menu_fragevent_selectphotos:
                        //Inflate a layout

                        Log.d(TAG, "onMenuItemClick: Select photo");
                        return true;

                }
                return false;
                }
            });
            popup.show();//showing popup menu
        }
    });

Answer 2

请尝试以下代码。

public class AddPhotoMenu extends PopupMenu {
    public AddPhotoMenu(Context context, View anchor) {
        super(context, anchor);
   getMenuInflater().inflate(R.menu.popup_menu_fragevent_addphotos, getMenu());

    }



    @Override
    public void setOnMenuItemClickListener(OnMenuItemClickListener listener) {
        new OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem item) {
                switch (item.getItemId()) {
                    case R.id.popup_menu_fragevent_takephoto:
                        //Inflate a layout
                        Log.d(TAG, "onMenuItemClick: Take photo");

                        break;
                    case R.id.popup_menu_fragevent_selectphotos:
                        //Inflate a layout

                        Log.d(TAG, "onMenuItemClick: Select photo");
                        break;

                }
                return false;
            }
        };
    }

尝试从构造函数中扩充菜单布局，您不需要重写 inflate 方法。

您可以覆盖 Activity/Fragment 中的 setOnMenuItemClickListener 并将其从自定义 class

中删除

 addPhotoMenu .setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
           @Override
            public boolean onMenuItemClick(MenuItem item) {
                switch (item.getItemId()) {
                    case R.id.popup_menu_fragevent_takephoto:
                        //Inflate a layout
                        Log.d(TAG, "onMenuItemClick: Take photo");

                        break;
                    case R.id.popup_menu_fragevent_selectphotos:
                        //Inflate a layout

                        Log.d(TAG, "onMenuItemClick: Select photo");
                        break;

                }
                return false;
            }
        };

希望对您有所帮助。

------------------------ 快乐编码-------------------- -

Answer 3

addPhotoMenu.inflate(R.menu.popup_menu_fragevent_addphotos);
addPhotoMenu.setOnMenuItemClickListener(addPhotoMenu); 
// Need to add this line otherwise it won't work.
addPhotoMenu.show();

感谢：

弹出菜单没有膨胀

Popup menu is not inflating

java

android

menu

layout-inflater

android-inflate