CODEWITHSUNDEEP
androidkotlinandroid-edittext
Bahador Eslami
Bahador Eslami

Reputation: 392

Filter list of product in a recyclerview - android

So I have a list of product in my recyclerview. Have a editText for search term .

Each time user type something in the editText field the list must be filtered . with live search there is no problem and the process work well .

for better ui experience I created a button(btn_search) for the edittext also. But in this case when click on the button the list not filtered and just disappeared .!!! what is wrong with my code.

Code :

this is function in the adapter that calls datachanged :

ListAdapter :

    fun filterList(filtername : List<Model>) {
        this.model = filtername
       notifyDataSetChanged()
    }

activity :

    lateinit var editText: EditText
    lateinit var model: ArrayList<Model>
    lateinit var adapter: ListAdapter
    lateinit var button: Button
    lateinit var recyclerView: RecyclerView

  
    button = findViewById(R.id.btn_search)

    var list = ArrayList<Model>()
    list.add(somedata) ...


    recyclerView = findViewById(R.id.recyclerView)
    model = list
    recyclerView.layoutManager = GridLayoutManager(this@MainActivity, 2)
    adapter = ListAadapter(model)
    recyclerView.adapter = adapter


    editText = findViewById(R.id.edit_text_search)


    // this is where call btnsearch but the list not filtered and disappeared
     button.setOnClickListener {
                filter(editText.toString())
        }


    // with this live search there is no issue and list filtered
     
/*
      editText.addTextChangedListener(object : TextWatcher {
            override fun afterTextChanged(text: Editable?) {
                filter(text.toString())
            }

            override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {

            }

            override fun onTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {

            }


        })*/


// this is the function for filter the list 
   

    fun filter(text: String) {
        val filterNameList = ArrayList<Model>()
        model.filterTo(filterNameList) { model ->
            model.title.contains(text)
        }
        adapter.filterList(filterNameList)
    }

So any idea where I'm doing wrong ?

Upvotes: 0

Views: 332

Answers (1)

Franz Andel
Franz Andel

Reputation: 1711

Seems like you are not getting the EditText text, you are casting the EditText directly into string in this line

button.setOnClickListener {
   filter(editText.toString())
}

So, you need to change it to this

button.setOnClickListener {
   filter(editText.text.toString())
}

Upvotes: 3

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