I am adding Searchview in Fragments and Menuitem is Inflated but when I click on Searchview Button and enter query Nothing Changes and my Data is not added.please help

here is the code Answer should be in Kotlin

override fun onQueryTextChange(p0: String?): Boolean {

            temp.clear()    //this is my temp array

            var text=p0?.lowercase(Locale.getDefault())

            if (text!!.isNotEmpty()){

        makeText(activity as Context,"working",Toast.LENGTH_LONG).show()

            value.forEach {


                temp.add(it) //by this line data shoul add but not added

            }
            }else{

                makeText(activity as Context,"no",Toast.LENGTH_LONG).show()

              temp.clear()

              temp.addAll(value)

                recyclerView.adapter?.notifyDataSetChanged()


            }

            return true
        }
    })

CodePudding user response：

You should check if user's input text is not empty, update data of your adapter and then call notifyDataSetChanged to refresh your list.

change your first if scope to this:

if (text!!.isNotEmpty()) {
        makeText(activity as Context, "working", Toast.LENGTH_LONG).show()
        value.forEach {
            temp.add(it) //by this line data shoul add but not added
        }
        recyclerView.adapter?.clear()
        recyclerView.adapter?.addAll(temp)
        recyclerView.adapter?.notifyDataSetChanged()
}