# 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];
}] ;
}
}
原文：http://www.cnblogs.com/yushunwu/p/4192817.html