CELL_PHOTO_IDENTIFIER

# define CELL_PHOTO_IDENTIFIER @"photoLibraryCell"

# define CLOSE_PHOTO_IMAGE @"close"

# define ADD_PHONE_IMAGE @"photo"

- (ALAssetsLibrary *) defaultAssetLibrairy {

　　static ALAssetsLibrary *assetLibrairy;

　　static dispatch_once_t onceToken;

　　dispatch_once(&onceToken, ^{

　　　　assetLibriry =[[ALAssetsLibrary alloc]init];

　　});

　　return (assetLibrary);

}

- (BOOL) shouldAutorotate {

　　return (false);

}

- (void) postMessage {

　　RRMessageModel *modelMessage = [[RRMessageModel alloc]init];

　　modelMessage.text = self.textView.text;

　　modelMessage.photos = self.selectedPhotos;

　　if(self.completion != nil) {

　　　　self.completion(modelMessage, false);

　　}

　　if([self.delegate respondsToSelector:@selector(getMessage:)])

{

　　　　[self.delegate getMessage:modelMessage];

　　}}

- (void) cancelMessage {

　　if([self.delegate respondsToSelector:@selector(messageCancel)]) {

　　　　[self.delegate messageCancel];

　　}

　　if(self.completion != nil) {

　　　　self.completion(nil, true);

　　}

}

- (void) textViewDidChange :(UITextView *)textView {

　　self.numberLine.text = [NSString stringWithFormat:@"%lu", (unsigned long)self.textView.text.length];

}

- (NSInteger) collectionView:(UICollectionView *) {

　　return (self.photosThumnailLIbray.count);

}

- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView

cellForItemAtIndexPath:(NSIndexPath *)indexPath {

　　UICollectionViewCellPhoto *cell = [collectionView dequeueReusableCellWithReuseIdentifier:CELL_PHOTO_IDENTIFIER forIndexPath:indexPath];

　　cell.photo.image = [self.photosThumbnailLibrary objectAtIndex:indexPath.row];

　　return (cell);

}

- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {

　　if(self.numberPhoto != -1  && self.selectedPhotos.count >= self.numberPhoto) {

　　　　return;

　　}

　　if(self.selectedPhotos.count == 0) {

　　　　CGFloat positionY = self.textView.frame.origin.y + self.textView./frame.size.height/2;

　　　　CGFloat sizeHeight = self.textView.frame.size.height /2;

　　　　[UIView animateWIthDuration:0.5 animations:^{

　　　　　　self.textView.frame = CGRectMake(self.textView.frame.origin.x, self.textView.frame.orin.y, self.textView.frame.size.width,self.textView.frame.size.height/2);

　　　　} completion:^(BOOL finished) {

　　　　　　NSRange bottom = NSMakeRange(self.textView.text.length -1 , 1);

　　　　　　[self.textView scrollRangeToVisible:bottom];

　　　　}] ;

　　}

}