iOS 7 UIRefreshControl tintColor 不适用于 beginRefreshing [英] iOS 7 UIRefreshControl tintColor not working for beginRefreshing

问题描述

我正在尝试在我的 UIRefreshControl 上设置 tintColor(构建在 iOS 7 上).我在情节提要中启用了 tableViewController 的刷新，然后在我的 ViewController viewDidLoad 方法中，我执行了以下操作:

[self.refreshControl setTintColor:[UIColor redColor]];

所以现在，当我拉动刷新时，刷新控件的颜色确实是红色的:

我希望我的视图在出现时自动更新，所以我做到了:

- (void)viewDidAppear:(BOOL)animated{[self.refreshControl beginRefreshing];}

根据

非常感谢！

解决方案

嘿，刚刚偶然发现了这个问题.

有趣的是，我通过先设置 contentOffset 然后调用 beginRefreshing 来修复我的代码

if(self.tableView.contentOffset.y == 0){self.tableView.contentOffset = CGPointMake(0, -self.refreshControl.frame.size.height);[self.refreshControl beginRefreshing];}

您可能希望为这个过程制作动画:

[UIView animateWithDuration:0.25 delay:0 options:UIViewAnimationOptionBeginFromCurrentState animations:^(void){self.tableView.contentOffset = CGPointMake(0, -self.refreshControl.frame.size.height);}完成:^(BOOL完成){[self.refreshControl beginRefreshing];}];

希望对你有帮助.

W

I'm trying to set a tintColor on my UIRefreshControl (building on iOS 7). I enabled refreshing for the tableViewController in storyboard, then in my ViewController viewDidLoad method i did the following:

[self.refreshControl setTintColor:[UIColor redColor]];

So now, when I pull to refresh, the color of the refresh control is red indeed:

I want my view to update automatically when it appears, so I did:

- (void)viewDidAppear:(BOOL)animated{
    [self.refreshControl beginRefreshing];
}

It didn't show the spinning wheel, according to https://stackoverflow.com/a/16250679/1809736, I added

[self.tableView setContentOffset:CGPointMake(0, -self.refreshControl.frame.size.height) animated:NO];

to force show it. It shows it, but now it is back to default color:

If I try manually to pull to refresh afterwards, it is red.

I tried building it on iOS6 and it works as it should, so is that an iOS7 bug?

P.S.: it is not a problem with the simulator, I tried building it on device, same bug.

P.P.S: I built an example project, can you tell me if you have the same bug or if there is a problem in my code? Here is the link: http://d.pr/f/pGrV

Thanks a lot !

解决方案

Hey just stumbled into this exact issue.

Interestingly I fixed my code by setting the contentOffset first then calling beginRefreshing

if(self.tableView.contentOffset.y == 0){
    self.tableView.contentOffset = CGPointMake(0, -self.refreshControl.frame.size.height);
    [self.refreshControl beginRefreshing];
}

You may want to animate this process:

[UIView animateWithDuration:0.25 delay:0 options:UIViewAnimationOptionBeginFromCurrentState animations:^(void){
    self.tableView.contentOffset = CGPointMake(0, -self.refreshControl.frame.size.height);
} completion:^(BOOL finished) {
    [self.refreshControl beginRefreshing];
}];

Hope this helps you.

W

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