AppDelegate.m for React Native Car Play

AppDelegate.m

#import "AppDelegate.h"

#import <React/RCTBundleURLProvider.h>
#import <React/RCTRootView.h>

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  NSURL *jsCodeLocation;

  jsCodeLocation = [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];

  RCTRootView *rootView = [[RCTRootView alloc] initWithBundleURL:jsCodeLocation
                                                      moduleName:@"carplay"
                                               initialProperties:nil
                                                   launchOptions:launchOptions];
  
  rootView.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:1.0f blue:1.0f alpha:1];

  self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
  UIViewController *rootViewController = [UIViewController new];
  rootViewController.view = rootView;
  self.window.rootViewController = rootViewController;
  [self.window makeKeyAndVisible];

  [[MPPlayableContentManager sharedContentManager] setDataSource:self];
  [[MPPlayableContentManager sharedContentManager] setDelegate:self];
  [[MPPlayableContentManager sharedContentManager] reloadData];

  return YES;
}


- (MPContentItem *)contentItemAtIndexPath:(NSIndexPath *)indexPath
{
  MPContentItem *contentItem = [[MPContentItem alloc] initWithIdentifier:[NSString stringWithFormat:@"channel_%ld", [indexPath indexAtPosition:1]]];
  NSDictionary *channel = @{};
  
  switch ([indexPath length]) {
    case 1:
      contentItem.title = [NSString stringWithFormat:@"Channels"];
      contentItem.playable = NO;
      contentItem.container = YES;
      break;
    default:
      channel = [[self channels] objectAtIndex:[indexPath indexAtPosition:1]];
      
      contentItem.title = channel[@"name"];
      contentItem.playable = YES;
      contentItem.container = YES;
      contentItem.streamingContent = YES;
  }
  
  return contentItem;
}

- (NSInteger)numberOfChildItemsAtIndexPath:(NSIndexPath *)indexPath {
  if (indexPath.length == 0) {
    return 1;
  }
  if (indexPath.length == 1) {
    switch ([indexPath indexAtPosition:0]) {
      case 0:
        return [self.channels count];
    }
  }
  return 0;
}

- (void)playableContentManager:(MPPlayableContentManager *)contentManager
initiatePlaybackOfContentItemAtIndexPath:(NSIndexPath *)indexPath
             completionHandler:(void (^)(NSError *))completionHandler {
  NSDictionary *channel = [[self channels] objectAtIndex:[indexPath indexAtPosition:1]];
  [self play:channel];
  completionHandler(nil);
}

-(void)play:(NSDictionary *)channel{
  NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://stream.open.fm/%@", channel[@"id"]]];
  self.player = [[AVPlayer alloc]initWithURL:url];
  [self.player addObserver:self forKeyPath:@"status" options:0 context:nil];
}

- (void)observeValueForKeyPath:(NSString *)keyPath
                      ofObject:(id)object
                        change:(NSDictionary *)change
                       context:(void *)context {
  
  if (object == self.player && [keyPath isEqualToString:@"status"]) {
    if (self.player.status == AVPlayerStatusFailed) {
      NSLog(@"AVPlayer Failed");
      
    } else if (self.player.status == AVPlayerStatusReadyToPlay) {
      NSLog(@"AVPlayerStatusReadyToPlay");
      [self.player play];
      
      
    } else if (self.player.status == AVPlayerItemStatusUnknown) {
      NSLog(@"AVPlayer Unknown");
      
    }
  }
}

@end