Android(安卓)ListView长按弹出对话框

ListView长按弹出对话框可以用PopupWindow实现
今天记录的是重写onCreateContextMenu和onContextItemSelected实现弹出对话框，比前者简单很多

上图

1 . 绑定ListView

registerForContextMenu(mUserList);

2 . 在onCreateContextMenu里面添加标题和Item

@Override    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {        super.onCreateContextMenu(menu, v, menuInfo);        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;        String user = idToEmail(info.id);        menu.setHeaderTitle(user);        menu.add(0, REMOVE_ID, 0, R.string.context_menu_remove_account);    }

3 . 在onContextItemSelected方法里面进行处理

@Override    public boolean onContextItemSelected(MenuItem item) {        AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) item.getMenuInfo();        final String user = idToEmail(info.id); // final so listener can see value        switch (item.getItemId()) {            case REMOVE_ID:                AccountDb.getInstance().delete(user);                refreshUserList(true);                return true;            default:                return super.onContextItemSelected(item);        }    }

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