how to make UIProgressView on the UITableViewCell change immediately?

问题:

I put a UIProgressView on a UITableViewCell, like that:

    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"downloadcell"]; if(cell==nil) {     cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle                                  reuseIdentifier:@"downloadcell"] autorelease];     UIProgressView* downPreView = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault];     downPreView.tag = 123;     downPreView.frame = CGRectMake(400,70, 200,10);     [cell.contentView addSubview:downPreView]; }

When download size have changed, I do that:

    UIProgressView* downPreView = (UIProgressView*)[cell viewWithTag:123]; downPreView.progress = downloadPre;

but the look of downPreView will not change immediately, only after I touch cell or other cell, so how to make UIProgressView on the UITableViewCell change immediately?

回答1:

performSelectorOnMainThread on it and everything is fine.

转载请标明出处:how to make UIProgressView on the UITableViewCell change immediately?

文章来源: how to make UIProgressView on the UITableViewCell change immediately?