小编iOS*_*iOS的帖子

revealImgView.animationImages =[NSArray arrayWithObjects:[UIImage imageNamed:@"reveal1.png"],[UIImage imageNamed:@"reveal2.png"],[UIImage imageNamed:@"reveal3.png"],[UIImage imageNamed:@"reveal4.png"],[UIImage imageNamed:@"reveal5.png"],nil];
revealImgView.animationDuration=1.5;
revealImgView.animationRepeatCount=INFINITY;
[revealImgView startAnimating];

这在iOS 6中运行良好,但在iOS 7中无效.我已经在笔尖中创建了UIImageView

当我按下后退按钮.的iCarousel是仍显示为1个second.why是这种情况发生以及如何阻止this.I已经用故事创造一个iCarosel观点..

- (void)viewDidUnload
{
    [super viewDidUnload];
    self.carousel = nil;
}
- (void)dealloc
{
    carousel.delegate = nil;
    carousel.dataSource = nil;
}

- (NSUInteger)numberOfItemsInCarousel:(iCarousel *)carousel
{
  return [idOfAllWords count];
}

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view
{
    UILabel *label = nil;

    //create new view if no view is available for recycling
    if (view == nil)
    {
        view = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 250.0f, 250.0f)];
        ((UIImageView *)view).image = [UIImage imageNamed:@"page.png"];
        view.contentMode = UIViewContentModeCenter;
        label = [[UILabel alloc] initWithFrame:view.bounds];
        label.backgroundColor = …

我试图在UIView类别中使用UIBezierPath创建一个三角形.但没有显示三角形.还得到一个:CGContextSetFillColorWithColor.所以我的问题是如何使用UIView类别制作三角形或任何路径.演示项目

#import "UIView+Bubble.h"
#import <QuartzCore/QuartzCore.h>

@implementation UIView (Bubble)

+(UIView *)makeBubble{
    UIView *customView = [[UIView alloc] init];
    customView.frame=CGRectMake(0, 0, 320, 500);
    UIBezierPath *triangle = [UIBezierPath bezierPath];
    [triangle moveToPoint:CGPointMake(100, 0)];
    [triangle addLineToPoint:CGPointMake(0, 100)];
    [triangle addLineToPoint:CGPointMake(200, 100)];
    [triangle closePath];
    [[UIColor blackColor] setFill];
    [triangle fill];
    customView.layer.shadowPath = [triangle CGPath];
    return customView;
}
@end

在ViewController.m中使用它像: -

- (void)viewDidLoad
{
    UIView *helpBubble=[UIView makeBubble];
    [self.view addSubview:helpBubble];
}