https://grokonez.com/android/kotlin-sqlite-example-search-with-listview-android
In previous post, we had known how to make CRUD operations with Android ListView
. In this tutorial, we're gonna look at how to implement Search function with SearchView
.
Related posts:
I. Technologies
- Android Studio 3
- Kotlin 1.1.51
II. Overview
1. Goal
We have had an Android App that supports showing, inserting, editing, deleting Notes from/to SQLite Database withListView
:
In this tutorial, we will add Search function for this app:
2. Search function
2.1 SearchView
SearchView
widget is available from Android 3.0. It is recommended to insert the search widget as an action view in the app bar.
For example, enable the widget during the onCreateOptionsMenu()
callback:
override fun onCreateOptionsMenu(menu: Menu?): Boolean {
menuInflater.inflate(R.menu.menu_main, menu)
val searchView: SearchView = menu!!.findItem(R.id.searchNote).actionView as SearchView
val searchManager = getSystemService(Context.SEARCH_SERVICE) as SearchManager
searchView.setSearchableInfo(searchManager.getSearchableInfo(componentName))
searchView.setOnQueryTextListener(object : SearchView.OnQueryTextListener {
override fun onQueryTextSubmit(query: String): Boolean {
loadQuery("%" + query + "%")
return false
}
override fun onQueryTextChange(newText: String): Boolean {
return false
}
})
We need to enable assisted search for each SearchView
by calling setSearchableInfo()
and passing it the SearchableInfo
object that represents searchable configuration.
More at:
Kotlin SQLite example - Search with Listview | Android
https://grokonez.com/android/kotlin-sqlite-example-search-with-listview-android
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