ios - UICollectionView: 1 row horizontal scrolling (right to left) with custom animation for new cell coming from right -


  • i have 1 row collections view images

  • i scroll images right left

  • i make animation each cell coming right (ala google+)

this animation based on alpha or frame location

how implement ?

this may not want in animations here i've done in uicollectionviewcell subclass. fade in cell while frame shrinks down appropriate size. call setphoto method within collectionview: cellforitematindexpath:.

@implementation historycollectionviewcell  - (void)setphoto:(photo*)photo {      if(_photo != photo) {         _photo = photo;     }      // set animations here     self.photoqueue.alpha = 0.0f;     self.cellcontainerview.alpha = 0.0f;     cgrect currentframe = self.cellcontainerview.frame;     cgfloat width = currentframe.size.width + 20;     cgfloat height = currentframe.size.height + 20;     cgfloat originx = currentframe.origin.x - 10;     cgfloat originy = currentframe.origin.y - 10;     cgrect newframe = cgrectmake(originx, originy, width, height);     self.cellcontainerview.frame = newframe;      dispatch_queue_t photoqueue = dispatch_queue_create("com.jeremyfox.snapto.photoqueue", null);     dispatch_async(photoqueue, ^{          __block uiimage* image = nil;          if (_photo) {             image = [photo getimageatpath:_photo.thumbnail];         }          dispatch_async(dispatch_get_main_queue(), ^{             if (image) {                 self.imageview.image = image;                  // perform animations here                 [uiview animatewithduration:0.3f animations:^{                     self.cellcontainerview.alpha = 1.0f;                     self.cellcontainerview.frame = currentframe;                 }];             }         });     }); }

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