fixed problem with fetchData problem and updated nic cage example

Author: lappp9

AsyncDisplayKit/ASVideoNode.mm

@@ -1,13 +1,6 @@
 
 
 #import "ASVideoNode.h"
-#import "ASDisplayNodeInternal.h"
-#import "ASDisplayNode+Subclasses.h"
-#import "ASDisplayNode+FrameworkPrivate.h"
-
-@interface ASDisplayNode ()
-- (void)setInterfaceState:(ASInterfaceState)newState;
-@end
 
 @interface ASVideoNode () {
   ASDN::RecursiveMutex _lock;
@@ -24,13 +17,16 @@ @interface ASVideoNode () {
 
 @end
 
+@interface ASDisplayNode ()
+- (void)setInterfaceState:(ASInterfaceState)newState;
+@end
+
 @implementation ASVideoNode
 
 - (instancetype)init {
   if (!(self = [super init])) { return nil; }
 
   _playerNode = [[ASDisplayNode alloc] initWithLayerBlock:^CALayer *{ return [[AVPlayerLayer alloc] init]; }];
-  
   [self addSubnode:_playerNode];
 
   self.gravity = ASVideoGravityResizeAspect;
@@ -114,7 +110,7 @@ - (instancetype)initWithViewBlock:(ASDisplayNodeViewBlock)viewBlock didLoadBlock
 - (void)fetchData
 {
   [super fetchData];
-  
+
   @try {
     [_currentItem removeObserver:self forKeyPath:NSStringFromSelector(@selector(status))];
   }
@@ -124,18 +120,46 @@ - (void)fetchData
 
   {
     ASDN::MutexLocker l(_lock);
-
     _currentItem = [[AVPlayerItem alloc] initWithAsset:_asset];
     [_currentItem addObserver:self forKeyPath:NSStringFromSelector(@selector(status)) options:NSKeyValueObservingOptionInitial | NSKeyValueObservingOptionNew context:NULL];
 
-    [((AVPlayerLayer *)_playerNode.layer).player replaceCurrentItemWithPlayerItem:_currentItem];
+    if (((AVPlayerLayer *)_playerNode.layer).player) {
+      [((AVPlayerLayer *)_playerNode.layer).player replaceCurrentItemWithPlayerItem:_currentItem];
+    } else {
+      ((AVPlayerLayer *)_playerNode.layer).player = [[AVPlayer alloc] initWithPlayerItem:_currentItem];
+    }
+
   }
-  
   if (_shouldAutoPlay) {
     [self play];
   }
 }
 
+//- (void)fetchData
+//{
+//  [super fetchData];
+//  
+//  @try {
+//    [_currentItem removeObserver:self forKeyPath:NSStringFromSelector(@selector(status))];
+//  }
+//  @catch (NSException * __unused exception) {
+//    NSLog(@"unnecessary removal in fetch data");
+//  }
+//  
+//  {
+//    ASDN::MutexLocker l(_lock);
+//    
+//    _currentItem = [[AVPlayerItem alloc] initWithAsset:_asset];
+//    [_currentItem addObserver:self forKeyPath:NSStringFromSelector(@selector(status)) options:NSKeyValueObservingOptionInitial | NSKeyValueObservingOptionNew context:NULL];
+//    
+//    [((AVPlayerLayer *)_playerNode.layer).player replaceCurrentItemWithPlayerItem:_currentItem];
+//  }
+//  
+//  if (_shouldAutoPlay) {
+//    [self play];
+//  }
+//}
+
 - (void)clearFetchedData
 {
   [super clearFetchedData];
@@ -150,7 +174,7 @@ - (void)clearFetchedData
 - (void)setPlayButton:(ASButtonNode *)playButton
 {
   ASDN::MutexLocker l(_lock);
-
+  
   _playButton = playButton;
 
   [self addSubnode:playButton];
@@ -161,7 +185,7 @@ - (void)setPlayButton:(ASButtonNode *)playButton
 - (ASButtonNode *)playButton
 {
   ASDN::MutexLocker l(_lock);
-
+  
   return _playButton;
 }
 
@@ -188,7 +212,7 @@ - (AVAsset *)asset
 
 - (void)setGravity:(ASVideoGravity)gravity {
   ASDN::MutexLocker l(_lock);
-
+  
   switch (gravity) {
     case ASVideoGravityResize:
       ((AVPlayerLayer *)_playerNode.layer).videoGravity = AVLayerVideoGravityResize;
@@ -208,7 +232,7 @@ - (void)setGravity:(ASVideoGravity)gravity {
 - (ASVideoGravity)gravity;
 {
   ASDN::MutexLocker l(_lock);
-
+  
   if ([((AVPlayerLayer *)_playerNode.layer).contentsGravity isEqualToString:AVLayerVideoGravityResize]) {
     return ASVideoGravityResize;
   }
@@ -222,7 +246,7 @@ - (ASVideoGravity)gravity;
 - (void)play;
 {
   ASDN::MutexLocker l(_lock);
-
+  
   [[((AVPlayerLayer *)_playerNode.layer) player] play];
   _shouldBePlaying = YES;
   _playButton.alpha = 0.0;
@@ -231,7 +255,7 @@ - (void)play;
       UIActivityIndicatorView *spinnnerView = [[UIActivityIndicatorView alloc] initWithFrame:_playButton.frame];
       spinnnerView.color = [UIColor whiteColor];
       [spinnnerView startAnimating];
-
+      
       return spinnnerView;
     }];
 
@@ -246,8 +270,8 @@ - (BOOL)ready;
 
 - (void)pause;
 {
-//  ASDN::MutexLocker l(_lock);
-
+  ASDN::MutexLocker l(_lock);
+  
   [[((AVPlayerLayer *)_playerNode.layer) player] pause];
   _shouldBePlaying = NO;
   _playButton.alpha = 1.0;
@@ -265,3 +289,4 @@ - (void)dealloc
 }
 
 @end
+

examples/Nic Cage TableView/Sample/BlurbNode.m

@@ -48,15 +48,8 @@ - (instancetype)init
   _textNode.linkAttributeNames = @[ kLinkAttributeName ];
 
   // generate an attributed string using the custom link attribute specified above
-  NSString *blurb = @"kittens courtesy placekitten.com \U0001F638";
+  NSString *blurb = @"Nic Cage courtesy of himself.";
   NSMutableAttributedString *string = [[NSMutableAttributedString alloc] initWithString:blurb];
-  [string addAttribute:NSFontAttributeName value:[UIFont fontWithName:@"HelveticaNeue-Light" size:16.0f] range:NSMakeRange(0, blurb.length)];
-  [string addAttributes:@{
-                          kLinkAttributeName: [NSURL URLWithString:@"http://placekitten.com/"],
-                          NSForegroundColorAttributeName: [UIColor grayColor],
-                          NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle | NSUnderlinePatternDot),
-                          }
-                  range:[blurb rangeOfString:@"placekitten.com"]];
   _textNode.attributedString = string;
 
   // add it as a subnode, and we're done

examples/Nic Cage TableView/Sample/ViewController.m

@@ -18,9 +18,9 @@
 #import "NicCageNode.h"
 
 
-static const NSInteger kLitterSize = 20;            // intial number of kitten cells in ASTableView
-static const NSInteger kLitterBatchSize = 10;       // number of kitten cells to add to ASTableView
-static const NSInteger kMaxLitterSize = 100;        // max number of kitten cells allowed in ASTableView
+static const NSInteger kCageSize = 20;            // intial number of Cage cells in ASTableView
+static const NSInteger kCageBatchSize = 10;       // number of Cage cells to add to ASTableView
+static const NSInteger kMaxCageSize = 100;        // max number of Cage cells allowed in ASTableView
 
 @interface ViewController () <ASTableViewDataSource, ASTableViewDelegate>
 {
@@ -55,11 +55,11 @@ - (instancetype)init
   _tableView.asyncDelegate = self;
 
   // populate our "data source" with some random kittens
-  _kittenDataSource = [self createLitterWithSize:kLitterSize];
+  _kittenDataSource = [self createLitterWithSize:kCageSize];
 
   _blurbNodeIndexPath = [NSIndexPath indexPathForItem:0 inSection:0];
 
-  self.title = @"Kittens";
+  self.title = @"Nic Cage";
   self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemEdit
                                                                                          target:self
                                                                                          action:@selector(toggleEditingMode)];
@@ -69,18 +69,16 @@ - (instancetype)init
 
 - (NSMutableArray *)createLitterWithSize:(NSInteger)litterSize
 {
-  NSMutableArray *kittens = [NSMutableArray arrayWithCapacity:litterSize];
+  NSMutableArray *cages = [NSMutableArray arrayWithCapacity:litterSize];
   for (NSInteger i = 0; i < litterSize; i++) {
 
-    // placekitten.com will return the same kitten picture if the same pixel height & width are requested,
-    // so generate kittens with different width & height values.
     u_int32_t deltaX = arc4random_uniform(10) - 5;
     u_int32_t deltaY = arc4random_uniform(10) - 5;
     CGSize size = CGSizeMake(350 + 2 * deltaX, 350 + 4 * deltaY);
 
-    [kittens addObject:[NSValue valueWithCGSize:size]];
+    [cages addObject:[NSValue valueWithCGSize:size]];
   }
-  return kittens;
+  return cages;
 }
 
 - (void)setKittenDataSource:(NSMutableArray *)kittenDataSource {
@@ -160,7 +158,7 @@ - (void)tableViewUnlockDataSource:(ASTableView *)tableView
 
 - (BOOL)shouldBatchFetchForTableView:(UITableView *)tableView
 {
-  return _kittenDataSource.count < kMaxLitterSize;
+  return _kittenDataSource.count < kMaxCageSize;
 }
 
 - (void)tableView:(UITableView *)tableView willBeginBatchFetchWithContext:(ASBatchContext *)context
@@ -170,7 +168,7 @@ - (void)tableView:(UITableView *)tableView willBeginBatchFetchWithContext:(ASBat
     dispatch_async(dispatch_get_main_queue(), ^{
 
       // populate a new array of random-sized kittens
-      NSArray *moarKittens = [self createLitterWithSize:kLitterBatchSize];
+      NSArray *moarKittens = [self createLitterWithSize:kCageBatchSize];
 
       NSMutableArray *indexPaths = [[NSMutableArray alloc] init];