隐藏Listview直到开始搜索 [英] Hiding Listview until search is initiated

问题描述

我有一个问题: 我有一个列表视图(来自自定义适配器)，其顶部有一个搜索栏.一切正常，我唯一需要做的就是打开活动以使列表视图保持隐藏或不可见，直到在搜索栏中开始搜索为止(换句话说，使列表视图保持隐藏，直到我开始在搜索栏中输入内容为止).

I have a question: I have a listview (from custom adapter) with a searchbar on top of it. Everything works ok, the only thing I need is when opening the activity to keep the listview hidden, or invisible, until the search has started in the searchbar (in other words, to keep the listview hidden until I start typing something in the searchbar).

您可以在此处找到代码:

You can find the code here:

如何在搜索过滤listview之后启动新的意图?

再加上一个建议的解决方案，不幸的是，该解决方案不起作用，您可以在此处查看:

Plus a suggested solution, which unfortunately did not work, you can see here:

默认情况下不可见的Android搜索列表?可以做到吗?

我期待着您的答复，并在此先感谢您.

I am looking forward to your replies guys and I thank you in advance.

推荐答案

尝试将TextWatcher添加到搜索EditText中.这将检测您何时在搜索中键入内容:

Try adding TextWatcher to your search EditText. This will detect when you type something in your search:

EditText search= (EditText) findViewById(R.id.search);
search.addTextChangedListener(filterTextWatcher);

TextWatcher方法:

TextWatcher method:

    private TextWatcher filterTextWatcher = new TextWatcher() {

        @Override
        public void onTextChanged(CharSequence s, int start, int before, int count) 
{
         //Change the visibility here
         list.setVisibility(View.VISIBLE);

        }

        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override
        public void afterTextChanged(Editable s) {

        }
    };

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