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How to Filter a RecyclerView with SearchView – Android Studio Tutorial

admin by admin
July 6, 2020
in Công Nghệ
25
How to Filter a RecyclerView with SearchView – Android Studio Tutorial



In this video we will learn how to use the SearchView widget to filter a RecyclerView in real time.
For this we will add the SearchView as an item to our options menu and make it expandable with the collapseActionView attribute. This way we can display it as an icon in our app bar, which expands to an input field when we click on it.
We implement the Filterable interface into our RecyclerView Adapter and create our own Filter, where we handle the filter logic in the asynchronous performFiltering method, which publishes the search results to the publishResults method on the UI thread.
In our Activity we then connect our SearchView with the Filter by setting an OnQueryTextListener onto our SearchView and listening for the text input in onQueryTextChange.

Example code:

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Comments 25

  1. Karu6500 says:
    2 years ago

    Thank you so much! Worked out perfectly

    Reply
  2. غريب الغرباء says:
    2 years ago

    My book or library project

    I have activity_main that includes -listView –

    Row_itme includes textView

    Activity_web.xml includes webView

    Now I have master list titles, sub-menu titles, then documents or text

    The files I have are in the -assets folder, there are also subfolders

    Documents, texts, or book content are files – html-

    For example 1.html – 2.html -3.html ….

    Request: Add a search engine that accesses -html pages

    Note that I applied a search engine, but it only works under -listView –

    Reply
  3. Manoj sirvi says:
    2 years ago

    All works Fine… But when I search and delete that item then whole recycler view items get removed, why ❓❓❓

    Reply
  4. ari dwi prayogo says:
    2 years ago

    Still helpful video even it's very old 😊😊

    Reply
  5. Aswin S Kumar says:
    2 years ago

    I'm using a edittext to get the work done and it is working okay with TEXT WATCHER but how to get the full list if I clear the edittext?

    Reply
  6. Việt Hoàng Nguyễn says:
    2 years ago

    Thank your help. I hope you make more videos <3

    Reply
  7. hansaj sharma says:
    2 years ago

    adapter.getFilter() dsoe not work even after declaring the getFilter() method

    Reply
  8. Silas Blumi says:
    2 years ago

    Wie kann man das benutzen, wenn man ein MVVM-Modell hat?
    Du hast ja schon eine Reihe dazu gemacht, aber wie kann ich da die Such-Funktion hinzufügen?

    Reply
  9. Tawfik Yasser says:
    2 years ago

    You are a great man 🙂

    Reply
  10. Bandla Venkata hemanth says:
    2 years ago

    private List<upload> mUploads;

    private List<upload> getmUploads;
    public image_adapter(Context context, List<upload> uploads) {

    mContext = context;

    mUploads = uploads;

    getmUploads=new ArrayList<>(uploads);
    //error
    }
    i am not getting data inside "getmUploads" ,its showing null exception, getmUploads.size() is 'o'.
    i don't no why, can any one help me please

    Reply
  11. Himanshu Kandwal says:
    2 years ago

    Great bro..😏

    Reply
  12. Fast App Development says:
    2 years ago

    @Coding in Flow I have a question. I want to use this search view in separate activity. Suppose there is MainActivity which shows & implement Recyclerview and there is another acitivity named searchactivity which has one Edittext and I want user to type something in that Edittext and I want to use it as query to search in my listview which in in MainActivity. How can I achieve this? If you have some video about it, please share the name or link of that video. Thanks alot

    Reply
  13. Cevad Tokatlı says:
    2 years ago

    Thanks! the best tutorial about the filterable recycler view, made my day.

    Reply
  14. Fast App Development says:
    2 years ago

    Finally. A great explanation and to the point kind of video after a long time. Thumbs up. BTW, I wonder how much time you put on this video? You know, I am also a beginner kind of content creater so this interests me.

    Reply
  15. Dhurjati Chakraborty says:
    2 years ago

    How can this be implemented with FirestoreRecyclerAdapter. I have tried with ArrayList and List but there re constructor errors. Please suggest

    Reply
  16. willyolyslager says:
    2 years ago

    How can we inflate the menu from within a fragment? Thanks!

    Reply
  17. Khalid LACHHAB says:
    2 years ago

    You deserve much more than just a like ✌🏻✌🏻
    Whenever i need help i automatically come to your channel and search for the solution
    Thank you so much man

    Reply
  18. Amit Ghosh says:
    2 years ago

    What is the alternative of Searchview in actionViewClass attribute now in latest androidX

    Reply
  19. Pradeep says:
    2 years ago

    I am getting this error
    java.lang.UnsupportedOperationException: This is not supported, use MenuItemCompat.getActionProvider()
    on this line
    val searchView: SearchView = searchItem.actionProvider as SearchView
    i tried using
    import android.widget.SearchView
    and
    import androidx.appcompat.widget.SearchView
    Help.

    Reply
  20. Ioan Mugur Vusmuc says:
    2 years ago

    Thanks a lot man! Clear and simple! I wonder if there is a way to filter diacritics from RecyclerView, do you have such an example? Thank you in advance!

    Reply
  21. Syahrizal Imannudien Haq says:
    2 years ago

    I didn't get the ( app: actionViewClass = "android.support.v7.widget.SearchView" ). Anyone can help me?

    Reply
  22. aldan sorry says:
    2 years ago

    THANKS !!!

    Reply
  23. ASHJET GAMERS says:
    2 years ago

    I expected this on, onclick video…

    Reply
  24. Keshav Garg says:
    2 years ago

    i just copied the code and got this error;

    Getting this Error….please help me with this;

    java.lang.NullPointerException: Attempt to invoke virtual method 'void androidx.recyclerview.widget.RecyclerView.setAdapter(androidx.recyclerview.widget.RecyclerView$Adapter)' on a null object reference

    Reply
  25. Basics Made Simple says:
    2 years ago

    Thanks so much for the video.
    However, I have an issue…. when i search then it shows result, but if I try to use backspace or hit back button, the original RecyclerView is lost. And if suppose there are no matching results then the screen is just blank. Even if I press back button the screen is blank.
    I understand that the original view is getting changed when I do notify dataset changed . How can I return to the original list.
    I am using Room database and Live Data, which is made based on your tutorial of Arhitecture component.
    It will be a real help if you can provide any solution. I have been trying to solve for last 3-4 days but couldn't do it.
    Thanks in advance.

    Reply

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