清空iOS应用程序缓存

清理缓存

    dispatch_async(
                   dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)
                   , ^{
                       NSString *cachPath = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory,NSUserDomainMask, YES) objectAtIndex:0];

                       NSArray *files = [[NSFileManager defaultManager] subpathsAtPath:cachPath];
                       NSLog(@"files :%ld",[files count]);
                       for (NSString *p in files)
                       {
                           NSError *error;
                           NSString *path = [cachPath stringByAppendingPathComponent:p];
                           if ([[NSFileManager defaultManager] fileExistsAtPath:path])
                           {
                               [[NSFileManager defaultManager] removeItemAtPath:path error:&error];
                           }
                       }
                       [self performSelectorOnMainThread:@selector(clearCacheSuccess) withObject:nil waitUntilDone:YES];
                   }
    );

清理成功后的回调

-(void)clearCacheSuccess
{
    NSLog(@"清理成功");
}