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new Add Station dialog that opens when a user selects to open an M3U …
…or PLS file from storage
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app/src/main/java/com/jamal2367/urlradio/dialogs/AddStationDialog.kt
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| /* | ||
| * AddStationDialog.kt | ||
| * Implements the AddStationDialog class | ||
| * A AddStationDialog shows a dialog with list of stations to import | ||
| * | ||
| * This file is part of | ||
| * TRANSISTOR - Radio App for Android | ||
| * | ||
| * Copyright (c) 2015-23 - Y20K.org | ||
| * Licensed under the MIT-License | ||
| * http://opensource.org/licenses/MIT | ||
| */ | ||
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| package com.jamal2367.urlradio.dialogs | ||
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| import android.content.Context | ||
| import android.view.LayoutInflater | ||
| import androidx.appcompat.app.AlertDialog | ||
| import androidx.recyclerview.widget.DefaultItemAnimator | ||
| import androidx.recyclerview.widget.LinearLayoutManager | ||
| import androidx.recyclerview.widget.RecyclerView | ||
| import com.google.android.material.dialog.MaterialAlertDialogBuilder | ||
| import com.jamal2367.urlradio.R | ||
| import com.jamal2367.urlradio.collection.CollectionAdapter | ||
| import com.jamal2367.urlradio.core.Station | ||
| import com.jamal2367.urlradio.search.SearchResultAdapter | ||
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| /* | ||
| * AddStationDialog class | ||
| */ | ||
| class AddStationDialog ( | ||
| private val context: Context, | ||
| private val stationList: List<Station>, | ||
| private val listener: AddStationDialogListener) : | ||
| SearchResultAdapter.SearchResultAdapterListener { | ||
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| /* Interface used to communicate back to activity */ | ||
| interface AddStationDialogListener { | ||
| fun onAddStationDialog(station: Station) | ||
| } | ||
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| /* Define log tag */ | ||
| private val TAG = AddStationDialog::class.java.simpleName | ||
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| /* Main class variables */ | ||
| private lateinit var dialog: AlertDialog | ||
| private lateinit var stationSearchResultList: RecyclerView | ||
| private lateinit var searchResultAdapter: SearchResultAdapter | ||
| private var station: Station = Station() | ||
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| /* Overrides onSearchResultTapped from SearchResultAdapterListener */ | ||
| override fun onSearchResultTapped(result: Station) { | ||
| station = result | ||
| // make add button clickable | ||
| activateAddButton() | ||
| } | ||
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| /* Construct and show dialog */ | ||
| fun show() { | ||
| // prepare dialog builder | ||
| val builder = MaterialAlertDialogBuilder(context) | ||
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| // set title | ||
| builder.setTitle(R.string.dialog_add_station_title) | ||
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| // get views | ||
| val inflater = LayoutInflater.from(context) | ||
| val view = inflater.inflate(R.layout.dialog_add_station, null) | ||
| stationSearchResultList = view.findViewById(R.id.station_list) | ||
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| // set up list of search results | ||
| setupRecyclerView(context) | ||
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| // add okay ("Add") button | ||
| builder.setPositiveButton(R.string.dialog_find_station_button_add) { _, _ -> | ||
| // listen for click on add button | ||
| listener.onAddStationDialog(station) | ||
| searchResultAdapter.stopPrePlayback() | ||
| } | ||
| // add cancel button | ||
| builder.setNegativeButton(R.string.dialog_generic_button_cancel) { _, _ -> | ||
| searchResultAdapter.stopPrePlayback() | ||
| } | ||
| // handle outside-click as "no" | ||
| builder.setOnCancelListener { | ||
| searchResultAdapter.stopPrePlayback() | ||
| } | ||
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| // set dialog view | ||
| builder.setView(view) | ||
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| // create and display dialog | ||
| dialog = builder.create() | ||
| dialog.show() | ||
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| // initially disable "Add" button | ||
| dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = false | ||
| } | ||
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| /* Sets up list of results (RecyclerView) */ | ||
| private fun setupRecyclerView(context: Context) { | ||
| searchResultAdapter = SearchResultAdapter(this, stationList) | ||
| stationSearchResultList.adapter = searchResultAdapter | ||
| val layoutManager: LinearLayoutManager = object: LinearLayoutManager(context) { | ||
| override fun supportsPredictiveItemAnimations(): Boolean { | ||
| return true | ||
| } | ||
| } | ||
| stationSearchResultList.layoutManager = layoutManager | ||
| stationSearchResultList.itemAnimator = DefaultItemAnimator() | ||
| } | ||
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| /* Implement activateAddButton to enable the "Add" button */ | ||
| override fun activateAddButton() { | ||
| dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = true | ||
| } | ||
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| /* Implement deactivateAddButton to disable the "Add" button */ | ||
| override fun deactivateAddButton() { | ||
| dialog.getButton(AlertDialog.BUTTON_POSITIVE).isEnabled = false | ||
| } | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
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| <?xml version="1.0" encoding="utf-8"?> | ||
| <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" | ||
| xmlns:app="http://schemas.android.com/apk/res-auto" | ||
| android:orientation="vertical" | ||
| android:layout_width="match_parent" | ||
| android:layout_height="match_parent"> | ||
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| <androidx.recyclerview.widget.RecyclerView | ||
| android:id="@+id/station_list" | ||
| android:layout_width="0dp" | ||
| android:layout_height="wrap_content" | ||
| android:layout_marginStart="8dp" | ||
| android:layout_marginEnd="8dp" | ||
| android:paddingTop="16dp" | ||
| app:layout_constrainedHeight="true" | ||
| app:layout_constraintBottom_toBottomOf="parent" | ||
| app:layout_constraintEnd_toEndOf="parent" | ||
| app:layout_constraintStart_toStartOf="parent" | ||
| app:layout_constraintTop_toTopOf="parent" | ||
| app:layout_constraintVertical_bias="0" /> | ||
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| </androidx.constraintlayout.widget.ConstraintLayout> |
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