ref: fruchtfleisch
app/src/main/java/xyz/apiote/bimba/czwek/search/ResultsActivity.kt
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package xyz.apiote.bimba.czwek.search import android.content.Context import android.location.Location import android.location.LocationListener import android.location.LocationManager import android.net.ConnectivityManager import android.os.Bundle import android.os.Handler import android.os.Looper import android.util.Log import android.view.View import androidx.appcompat.app.AppCompatActivity import androidx.appcompat.content.res.AppCompatResources import androidx.core.view.WindowCompat import androidx.recyclerview.widget.LinearLayoutManager import kotlinx.coroutines.* import xyz.apiote.bimba.czwek.R import xyz.apiote.bimba.czwek.api.* import xyz.apiote.bimba.czwek.databinding.ActivityResultsBinding import xyz.apiote.bimba.czwek.repo.TrafficResponseException import xyz.apiote.bimba.czwek.repo.OnlineRepository import xyz.apiote.bimba.czwek.repo.Position import xyz.apiote.bimba.czwek.repo.Queryable class ResultsActivity : AppCompatActivity(), LocationListener { enum class Mode { MODE_LOCATION, MODE_SEARCH, MODE_POSITION } private var _binding: ActivityResultsBinding? = null private val binding get() = _binding!! private lateinit var adapter: BimbaResultsAdapter private val handler = Handler(Looper.getMainLooper()) private var runnable = Runnable {} override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) _binding = ActivityResultsBinding.inflate(layoutInflater) setContentView(binding.root) binding.resultsRecycler.layoutManager = LinearLayoutManager(this) adapter = BimbaResultsAdapter(layoutInflater, this, listOf()) binding.resultsRecycler.adapter = adapter setSupportActionBar(binding.topAppBar) WindowCompat.setDecorFitsSystemWindows(window, false) @Suppress("DEPRECATION") // fixme later getSerializable in API>=33 when (intent.extras?.get("mode")) { Mode.MODE_LOCATION -> { supportActionBar?.title = getString(R.string.stops_nearby) locate() } Mode.MODE_POSITION -> { val query = intent.extras?.getString("query") val lat = intent.extras?.getDouble("lat") val lon = intent.extras?.getDouble("lon") supportActionBar?.title = getString(R.string.stops_near_code, query) getQueryablesByLocation(Position(lat!!, lon!!), this) } Mode.MODE_SEARCH -> { val query = intent.extras?.getString("query")!! supportActionBar?.title = getString(R.string.results_for, query) getQueryablesByQuery(query, this) } } } private fun locate() { try { val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager locationManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 1000 * 60 * 10, 100f, this ) handler.removeCallbacks(runnable) runnable = Runnable { showError(Error(0, R.string.error_gps, R.drawable.error_gps)) } handler.postDelayed(runnable, 60 * 1000) locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER) ?.let { onLocationChanged(it) } } catch (_: SecurityException) { // this won’t happen because we don’t start this activity without location permission } } override fun onLocationChanged(location: Location) { handler.removeCallbacks(runnable) getQueryablesByLocation(Position(location.latitude, location.longitude), this) } override fun onResume() { super.onResume() @Suppress("DEPRECATION") // fixme later getSerializable in API>=33 if (intent.extras?.get("mode") == Mode.MODE_LOCATION) { locate() } } override fun onPause() { super.onPause() val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager locationManager.removeUpdates(this) handler.removeCallbacks(runnable) } override fun onDestroy() { super.onDestroy() val locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager locationManager.removeUpdates(this) handler.removeCallbacks(runnable) } private fun getQueryablesByQuery(query: String, context: Context) { val cm = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager MainScope().launch { try { val repository = OnlineRepository() val result = repository.queryQueryables(cm, query, context) updateItems(result) } catch (e: TrafficResponseException) { Log.w("Suggestion", "$e") showError(e.error) } } } private fun getQueryablesByLocation(position: Position, context: Context) { val cm = getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager MainScope().launch { try { val repository = OnlineRepository() val result = repository.locateQueryables(cm, position, context) updateItems(result) } catch (e: TrafficResponseException) { Log.w("Suggestion", "$e") showError(e.error) } } } private fun showError(error: Error) { binding.resultsProgress.visibility = View.GONE binding.resultsRecycler.visibility = View.GONE binding.errorImage.visibility = View.VISIBLE binding.errorText.visibility = View.VISIBLE binding.errorText.text = getString(error.stringResource) binding.errorImage.setImageDrawable(AppCompatResources.getDrawable(this, error.imageResource)) } private fun updateItems(queryables: List<Queryable>?) { binding.resultsProgress.visibility = View.GONE adapter.update(queryables) if (queryables.isNullOrEmpty()) { binding.errorImage.visibility = View.VISIBLE binding.errorText.visibility = View.VISIBLE binding.resultsRecycler.visibility = View.GONE binding.errorText.text = getString(R.string.error_404) binding.errorImage.setImageDrawable( AppCompatResources.getDrawable( this, R.drawable.error_search ) ) } else { @Suppress("DEPRECATION") // fixme later getSerializable in API>=33 if (queryables.size == 1 && intent.extras?.get("mode") == Mode.MODE_SEARCH) { adapter.click(0) } binding.resultsOverlay.visibility = View.GONE binding.errorImage.visibility = View.GONE binding.errorText.visibility = View.GONE binding.resultsRecycler.visibility = View.VISIBLE } } } |