清除缓存

// 清除缓存的方法

- (void)deleteAll

{

DataBaseHandler *db = [DataBaseHandler shareInstance];

MBProgressHUD *mb = [[MBProgressHUD alloc] initWithView:self.view];

[self.view addSubview:mb];

mb.mode = MBProgressHUDModeCustomView;

mb.labelText = @"清空成功";

mb.customView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"hubyes.png"]] autorelease];

[mb showAnimated:YES whileExecutingBlock:^{

sleep(1);

} completionBlock:^{

[mb removeFromSuperview];

}];

[db delete:@"browsed" Menu:nil];

self.allArr = nil;

[self.browsedView reloadData];

}