获取文件夹下某个后缀的所有文件

获取ios_patch文件夹下面pat后缀的所有文件
    NSString* documentPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
    NSString *baseSavePath = [documentPath stringByAppendingString:@"/IOSBundle/ios_patch/"];
    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSDirectoryEnumerator *myDirectoryEnumerator = [fileManager enumeratorAtPath:baseSavePath];  //baseSavePath 为文件夹的路径
    NSMutableArray *filePathArray = [[NSMutableArray alloc]init];   //用来存目录名字的数组
    NSString *file;
    while((file=[myDirectoryEnumerator nextObject]))     //遍历当前目录
    {
        if([[file pathExtension] isEqualToString:@"pat"])  //取得后缀名为.pat的文件名
        {
            [filePathArray addObject:[baseSavePath stringByAppendingPathComponent:file]];//存到数组
        }
    }
    NSString *patch1Path = [filePathArray lastObject];

删除文件夹下面的所有内容

删除IOSBundle文件夹下的所有文件
    NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    NSString *bundlePath = [documentsPath stringByAppendingPathComponent:@"IOSBundle"];
    NSDirectoryEnumerator *dirEnum = [[NSFileManager defaultManager] enumeratorAtPath:bundlePath];
    NSString *fileName;
    while (fileName= [dirEnum nextObject]) {
        [[NSFileManager defaultManager] removeItemAtPath:[NSString stringWithFormat:@"%@/%@",path,fileName] error:nil];
    }

删除文件路径(文件夹)

    NSFileManager *fileManage = [NSFileManager defaultManager];
NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
NSString *bundlePath = [documentsPath stringByAppendingPathComponent:@"IOSBundle"];
[fileManage removeItemAtPath:bundlePath error:nil];

根据文件名在某个路径下获取文件

    NSString * appDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    NSString *baseBundleSavePath = [appDir stringByAppendingString:@"/BaseBundle/output/ios/bundle"];
    NSString *docPath = [NSBundle pathForResource:@"main" ofType:@"jsbundle" inDirectory:baseBundleSavePath];

创建文件路径(文件夹)

    NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    NSString *bundlePath = [documentsPath stringByAppendingPathComponent:@"IOSBundle"];
   //是否存在文件夹IOSBundle，不存在则创建
    if (![[NSFileManager defaultManager] fileExistsAtPath:bundlePath]) {
    [[NSFileManager defaultManager] createDirectoryAtPath:bundlePath withIntermediateDirectories:YES attributes:nil error:nil];
}

删除文件夹下面后缀结尾的文件

NSString *extension = @"png";
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
 
NSArray *contents = [fileManager contentsOfDirectoryAtPath:documentsDirectory error:nil];
NSEnumerator *enumerator = [contents objectEnumerator];
NSString *filename;
while ((filename = [enumerator nextObject])) {
    if ([[filename pathExtension] isEqualToString:extension]) {
        [fileManager removeItemAtPath:[documentsDirectory stringByAppendingPathComponent:filename] error:nil];
    }