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How to Add SearchView in Google Maps on Android?

To integrate a SearchView with Google Maps in your Android application, follow the steps below:

1. Set up Google Maps:

Ensure that you have already integrated Google Maps in your Android app. If not, do so first.

2. Add SearchView to your XML layout:

In your activity's XML layout file, add the SearchView:

<androidx.appcompat.widget.SearchView
    android:id="@+id/searchView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="16dp"
    android:queryHint="Search a location" />

3. Implement the Search Logic:

In your activity or fragment:

  1. Set up a GeoCoder to convert location names to latitude and longitude.
  2. Handle the SearchView query submission to update the map.

Here's an example in Kotlin:

val searchView = findViewById<SearchView>(R.id.searchView)
searchView.setOnQueryTextListener(object : SearchView.OnQueryTextListener {

    override fun onQueryTextSubmit(query: String?): Boolean {
        val location = searchView.query.toString()
        var addressList: List<Address>? = null

        if (location != "") {
            val geocoder = Geocoder(this@YourActivityName)
            try {
                addressList = geocoder.getFromLocationName(location, 1)

            } catch (e: IOException) {
                e.printStackTrace()
            }
            if (addressList != null && addressList.isNotEmpty()) {
                val address = addressList[0]
                val latLng = LatLng(address.latitude, address.longitude)
                mMap?.addMarker(MarkerOptions().position(latLng).title(location))
                mMap?.animateCamera(CameraUpdateFactory.newLatLngZoom(latLng, 10f))
            } else {
                // Handle location not found scenario
                Toast.makeText(applicationContext, "Location not found", Toast.LENGTH_SHORT).show()
            }
        }
        return false
    }

    override fun onQueryTextChange(newText: String?): Boolean {
        return false
    }
})

Replace YourActivityName with the name of your activity.

4. Add Necessary Permissions:

Ensure you have Internet permissions in your AndroidManifest.xml to allow for the Geocoder to function:

<uses-permission android:name="android.permission.INTERNET" />

5. Run Your App:

Now, you should be able to type a location name in the SearchView, and when you submit the query, the map will add a marker at the specified location (if found) and center the camera on that location.

Note: The Geocoder uses the device's inbuilt geocoding capabilities, which might not always be available or might be restricted in some regions. If you need a more robust geocoding solution, consider using the Google Maps Geocoding API.

  1. Integrating SearchView for location search in Google Maps:

    • Description: To integrate a SearchView for location search in Google Maps, add a SearchView to your layout and set up the necessary Google Maps API.

    • Code:

    <SearchView
    android:id="@+id/searchView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"/>

  2. Adding auto-complete suggestions to SearchView in Android:

    • Description: Use the AutoCompleteTextView within the SearchView to provide auto-complete suggestions. You may need to implement an adapter and set it to the AutoCompleteTextView.

    • Code:

    val searchView: SearchView = findViewById(R.id.searchView)
val autoCompleteTextView = searchView.findViewById<AutoCompleteTextView>(androidx.appcompat.R.id.search_src_text)

// Set up an adapter for auto-complete suggestions
val adapter = ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, suggestions)
autoCompleteTextView.setAdapter(adapter)

  3. Handling location search results with Google Places API:

    • Description: Utilize the Google Places API to fetch location search results. Use the API to retrieve place details based on user input.

    • Code:

    // Use Google Places API to get location predictions
val placesClient = Places.createClient(this)
val predictionsRequest = FindAutocompletePredictionsRequest.builder()
    .setTypeFilter(TypeFilter.ADDRESS)
    .setSessionToken(AutocompleteSessionToken.newInstance())
    .setQuery(query)
    .build()

placesClient.findAutocompletePredictions(predictionsRequest)
    .addOnSuccessListener { response: FindAutocompletePredictionsResponse ->
        // Handle search predictions
        val predictions = response.autocompletePredictions
    }
    .addOnFailureListener { exception: Exception ->
        // Handle error
    }

  4. Customizing the appearance of SearchView in Google Maps:

    • Description: Customize the appearance of the SearchView using XML attributes or programmatically to match the design of your app.

    • Code:

    <SearchView
    android:id="@+id/searchView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:queryBackground="@android:color/transparent"
    app:searchIcon="@drawable/custom_search_icon"/>

  5. Implementing search functionality with SearchView in Android:

    • Description: Implement search functionality by listening to query changes and triggering the appropriate actions, such as fetching search results.

    • Code:

    val searchView: SearchView = findViewById(R.id.searchView)

searchView.setOnQueryTextListener(object : SearchView.OnQueryTextListener {
    override fun onQueryTextSubmit(query: String?): Boolean {
        // Handle search query submission
        return true
    }

    override fun onQueryTextChange(newText: String?): Boolean {
        // Handle search query change
        return true
    }
})

  6. Using Geocoding to convert search queries to LatLng in Android:

    • Description: Utilize Geocoding to convert user-entered search queries into geographical coordinates (LatLng).

    • Code:

    val geocoder = Geocoder(this)
val addressList = geocoder.getFromLocationName(query, 1)

if (addressList.isNotEmpty()) {
    val latitude = addressList[0].latitude
    val longitude = addressList[0].longitude
    val latLng = LatLng(latitude, longitude)
}

  7. Filtering search results for specific types of places:

    • Description: Use filters in the Google Places API to narrow down search results based on specific types of places, such as restaurants or landmarks.

    • Code:

    val predictionsRequest = FindAutocompletePredictionsRequest.builder()
    .setTypeFilter(TypeFilter.ESTABLISHMENT)
    .setSessionToken(AutocompleteSessionToken.newInstance())
    .setQuery(query)
    .build()

  8. Handling item selection events with SearchView in Android:

    • Description: Listen for item selection events in the SearchView to perform actions when a location is selected from the suggestions.

    • Code:

    val searchView: SearchView = findViewById(R.id.searchView)

searchView.setOnSuggestionListener(object : SearchView.OnSuggestionListener {
    override fun onSuggestionSelect(position: Int): Boolean {
        // Handle suggestion selection
        return true
    }

    override fun onSuggestionClick(position: Int): Boolean {
        // Handle suggestion click
        return true
    }
})
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