AOrobator

interface PlaylistRepository: Repository {
  fun addSongToPlaylist(songId: Long, playlistId: Long)
}

AOrobator

public class MainActivity extends Activity {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ShortcutManager shortcutManager = getSystemService(ShortcutManager.class);
        if (shortcutManager.getDynamicShortcuts().size() == 0) {
            // Application restored. Need to re-publish dynamic shortcuts.
            if (shortcutManager.getPinnedShortcuts().size() > 0) {
                // Pinned shortcuts have been restored. Use
                // updateShortcuts(List) to make sure they
                // contain up-to-date information.

AOrobator

@TargetApi(N_MR1)
fun trackShortcutUsed(shortcutManager: ShortcutManager, constellation: Constellation) {
  shortcutManager.reportShortcutUsed(constellation.name)
  val sharedPrefs = PreferenceManager.getDefaultSharedPreferences(APP_CONTEXT)
  val seenCount = sharedPrefs.getInt(constellation.name, 0)
  sharedPrefs
      .edit()
      .putInt(constellation.name, seenCount + 1)
      .apply()
  updateShortcuts(shortcutManager)

AOrobator

shortcutAction {
  trackShortcutUsed(it, constellation)
}

AOrobator

@TargetApi(N_MR1)
override fun onOptionsItemSelected(item: MenuItem): Boolean {
  when (item.itemId) {
    R.id.enable_shortcut -> shortcutAction {
      it.enableShortcuts(listOf(constellation.name))
      alertUser(R.string.shortcut_enabled)
    }
    R.id.disable_shortcut -> shortcutAction {
      it.disableShortcuts(listOf(constellation.name))
      alertUser(R.string.shortcut_disabled)

AOrobator

/**
 * Sets the new Shortcut List by providing the three most visited
 * constellations
 * */
@TargetApi(N_MR1)
fun updateShortcuts(shortcutManager: ShortcutManager) {
  shortcutManager.dynamicShortcuts =
      Constellation
          .values()
          .sortedWith(compareBy { -getConstellationVisitedCount(it) })

AOrobator

inline fun shortcutAction(action: (ShortcutManager) -> Unit): Unit {
  if (SDK_INT >= N_MR1) {
    val shortcutManager = APP_CONTEXT.getSystemService(ShortcutManager::class.java)
    action(shortcutManager)
  }
}

AOrobator

val shortcutManager = context.getSystemService(ShortcutManager::class.java)

AOrobator

<?xml version="1.0" encoding="utf-8"?>
<shortcuts xmlns:android="http://schemas.android.com/apk/res/android">
  <shortcut
    android:enabled="true"
    android:icon="@drawable/random_constellation"
    android:shortcutDisabledMessage="@string/shortcut_disabled_message"
    android:shortcutId="random_constellation"
    android:shortcutLongLabel="@string/shortcut_long_label"
    android:shortcutShortLabel="@string/shortcut_short_label">
    <!-- Each one of these intents needs an android:action, even if you don't

AOrobator

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.orobator.konstellations">

  <application
    android:name=".KonstellationsApplication"
    android:allowBackup="true"
    android:icon="@drawable/app_icon"
    android:label="@string/app_name"
    android:supportsRtl="true"