iOS下拉刷新：BMYCircularProgressPullToRefresh

BMYCircularProgressPullToRefresh 是下拉刷新，帶有圓形進程視圖，類似 Beamly iOS 應用。

此版本的下拉刷新特性可以再 UITableViews 和 UICollection 上使用，靈感來源于 Sam Vermette's SVPlullToRefresh。

簡單用法:

• 復制在BMYCircularProgressPullToRefresh文件夾中的所有類至你的項目中。
• import BMYCircularProgressPullToRefresh.h in your (view controller) class
• add the pull to refresh feature as so (you probably want to do to in the viewDidLoad method):

UIImage *logoImage = [UIImage imageNamed:@"bicon.png"];
UIImage *backCircleImage = [UIImage imageNamed:@"light_circle.png"];
UIImage *frontCircleImage = [UIImage imageNamed:@"dark_circle.png"];

BMYCircularProgressView *progressView = [[BMYCircularProgressView alloc] initWithFrame:CGRectMake(0, 0, 25, 25)
                                                                                  logo:logoImage
                                                                       backCircleImage:backCircleImage
                                                                      frontCircleImage:frontCircleImage];

[self.scrollView setPullToRefreshWithHeight:60.0f actionHandler:^(BMYPullToRefreshView *pullToRefreshView){
    // reload logic, call the following line when work is done 
    [pullToRefreshView stopAnimating];
}];

[self.scrollView.pullToRefreshView setPreserveContentInset:YES];
[self.scrollView.pullToRefreshView setProgressView:progressView];

- (void)dealloc {
    [self.scrollView tearDownPullToRefresh];
}

項目主頁：http://www.baiduhome.net/lib/view/home/1406191795382