Android的搜索列表默认情况下不可见的？能不能做到？ [英] Android search list invisible by default? Can it be done?

问题描述

喜家伙我有一个问题：

总之，我有一个列表视图，以在它顶部的搜索栏，我也能过滤结果等之后，开始我的其他活动;基本上一切工作正常和甜蜜。

In short, I have a listview, with a searchbar on top of it, I am also able to start my other activities after filtering the results etc; basically everything works fine and sweet.

我的问题是这样的：
当启动的主要活动列表视图是可见的（显然不够）。有没有一种方法，使无形的列表视图，只有在搜索栏，使列表视图的结果变得可见键入后？类似的在应用程序搜索的东西;还是我只是想象了？

My question is this: When launching the main activity the listview is visible (obviously enough). Is there a way to make the listview invisible and only after typing in the searchbar to make the results of the listview become visible? Something like an in app search thing; or am I just imagining things?

我希望，我不是什么我上面写的太混乱了。

I hope that I am not too confusing with what I wrote above.

我期待着您的答复，我感谢你在前进。

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

推荐答案

转到这种方式：
设置你的列表视图的可视性，从XML文件不见了或无形的：

Go this way: set your listview visibility to gone or invisible from your xml file:

android:visibility="gone"

现在申请textwatcher在搜索栏的EditText

Now apply textwatcher on searchbar edittext

edittext.addTextChangedListener(new TextWatcher() {
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

                // TODO Auto-generated method stub
                //put your search logic here and populate listview.
                //after populating listview set its visibility to visible
                listView.setVisibility(View.VISIBLE);
                //and set listview visibility to GONE again when user erase all text from search edittext
                if(s.length() == 0){
                listView.setVisibility(View.GONE);
                } else {
                listView.setVisibility(View.VISIBLE);
                }
            }

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

                // TODO Auto-generated method stub
            }

            @Override
            public void afterTextChanged(Editable s) {

                // TODO Auto-generated method stub
            }
        });

这篇关于Android的搜索列表默认情况下不可见的？能不能做到？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！