@UiThread
private void updatePowerMenuItems(boolean canPowerOn, boolean canPowerOff) {
boolean connected = isConnected();
// The fragment may no longer be attached to the parent activity. If so, do nothing.
if (!isAdded()) {
return;
}
if (menu_item_poweron != null) {
if (canPowerOn && connected) {
Player player = getActivePlayer();
String playerName = player != null ? player.getName() : "";
menu_item_poweron.setTitle(getString(R.string.menu_item_poweron, playerName));
menu_item_poweron.setVisible(true);
} else {
menu_item_poweron.setVisible(false);
}
}
if (menu_item_poweroff != null) {
if (canPowerOff && connected) {
Player player = getActivePlayer();
String playerName = player != null ? player.getName() : "";
menu_item_poweroff.setTitle(getString(R.string.menu_item_poweroff, playerName));
menu_item_poweroff.setVisible(true);
} else {
menu_item_poweroff.setVisible(false);
}
}
}
/**
* Manages the list of connected players in the action bar.
*
* @param players A list of players to show. May be empty (use {@code
* Collections.<Player>emptyList()}) but not null.
* @param activePlayer The currently active player. May be null.
*/
@UiThread
private void updatePlayerDropDown(
@NonNull Collection<Player> players, @Nullable Player activePlayer) {
if (!isAdded()) {
return;
}
// Only include players that are connected to the server.
ArrayList<Player> connectedPlayers = new ArrayList<Player>();
for (Player player : players) {
if (player.getConnected()) {
connectedPlayers.add(player);
}
}
ActionBar actionBar = mActivity.getSupportActionBar();
// If there are multiple players connected then show a spinner allowing the user to
// choose between them.
if (connectedPlayers.size() > 1) {
actionBar.setDisplayShowTitleEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
final ArrayAdapter<Player> playerAdapter =
new ArrayAdapter<Player>(
actionBar.getThemedContext(),
android.R.layout.simple_spinner_dropdown_item,
connectedPlayers) {
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
return Util.getActionBarSpinnerItemView(
getContext(), convertView, parent, getItem(position).getName());
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
return Util.getActionBarSpinnerItemView(
getContext(), convertView, parent, getItem(position).getName());
}
};
actionBar.setListNavigationCallbacks(
playerAdapter,
new ActionBar.OnNavigationListener() {
@Override
public boolean onNavigationItemSelected(int position, long id) {
if (!playerAdapter.getItem(position).equals(mService.getActivePlayer())) {
Log.i(
TAG,
"onNavigationItemSelected.setActivePlayer("
+ playerAdapter.getItem(position)
+ ")");
mService.setActivePlayer(playerAdapter.getItem(position));
updateUiFromPlayerState(mService.getActivePlayerState());
}
return true;
}
});
if (activePlayer != null) {
actionBar.setSelectedNavigationItem(playerAdapter.getPosition(activePlayer));
}
} else {
// 0 or 1 players, disable the spinner, and either show the sole player in the
// action bar, or the app name if there are no players.
actionBar.setDisplayShowTitleEnabled(true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
if (connectedPlayers.size() == 1) {
actionBar.setTitle(connectedPlayers.get(0).getName());
} else {
// TODO: Alert the user if there are no connected players.
actionBar.setTitle(R.string.app_name);
}
}
}