我正在将我的照片保存到收藏视图中，但我无法删除我拍摄的照片。我在集合视图中使用点击删除。这是我的代码。但是在我点击并删除图片后，它看起来图片没有被删除，并且找不到错误的地方，我怀疑它与数组有关，但我不确定。
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
allImagesArray = [[NSMutableArray alloc] init];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSArray *locations = [[NSArray alloc]initWithObjects:@"Bottoms", @"Dress", @"Coats", @"Others", @"hats", @"Tops",nil ];
NSString *fPath = documentsDirectory;
NSMutableArray *trashCan = [NSMutableArray array];
NSArray *directoryContent;
for(NSString *component in locations){
NSString *TrashBin = [fPath stringByAppendingPathComponent:component];
NSArray *directoryContent = [[NSFileManager defaultManager] directoryContentsAtPath: TrashBin];
collectionTrash.delegate =self;
collectionTrash.dataSource=self;
for(NSString *str in directoryContent){
NSLog(@"str:%@", str);
NSString *finalFilePath = [TrashBin stringByAppendingPathComponent:str];
NSData *data = [NSData dataWithContentsOfFile:finalFilePath];
[trashCan addObject:finalFilePath];
if(data)
{
UIImage *image = [UIImage imageWithData:data];
[allImagesArray addObject:image];
NSLog(@"array:%@",[allImagesArray description]);
}}}
Trash = trashCan;
for(NSString *folder in locations) {
for(NSString *file in directoryContent) {
// load the image
}
}}
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
{
NSLog(@"j");
return 1;
}
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return [allImagesArray count];
}
-(UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *reuseID = @"ReuseID";
TrashCell *mycell = (TrashCell *) [collectionView dequeueReusableCellWithReuseIdentifier:reuseID forIndexPath:indexPath];
UIImageView *imageInCell = (UIImageView*)[mycell viewWithTag:1];
imageInCell.image = [allImagesArray objectAtIndex:indexPath.row];
NSLog(@"a");
return mycell;
}
-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
NSLog(@"s:%d", [Trash count]);
NSString *trashBin = [Trash objectAtIndex:indexPath.row];
NSLog(@"k%@l",trashBin);
[allImagesArray removeObjectAtIndex:indexPath.row];
[self.collectionTrash reloadData];
[self deleteMyFiles:trashBin];
}
NSString *myFileName;
-(void) deleteMyFiles:(NSString*)filePath {
NSError *error;
if([[NSFileManager defaultManager] fileExistsAtPath:filePath]) {
[[NSFileManager defaultManager] removeItemAtPath:filePath error:&error];
}
}