递归思路：
- (void)showAllFileWithPath:(NSString *) path {
NSFileManager * fileManger = [NSFileManager defaultManager];
BOOL isDir = NO;
BOOL isExist = [fileManger fileExistsAtPath:path isDirectory:&isDir];
if (isExist) {
if (isDir) {
NSArray * dirArray = [fileManger contentsOfDirectoryAtPath:path error:nil];
NSString * subPath = nil;
for (NSString * str in dirArray) {
subPath = [path stringByAppendingPathComponent:str];
BOOL issubDir = NO;
[fileManger fileExistsAtPath:subPath isDirectory:&issubDir];
[self showAllFileWithPath:subPath];
}
}else{
NSString *fileName = [[path componentsSeparatedByString:@"/"] lastObject];
if ([fileName hasSuffix:@".png"]) {
//do anything you want
[self.imageArray addObject:fileName];
}else if([fileName hasSuffix:@".mv"]){
[self.imageArray addObject:fileName];
}
}
}else{
NSLog(@"this path is not exist!");
}
}
