IOS UI问题集_设s是正整数集合。s是一个无和集,当且仅当x,y属于s蕴含x+y不属于s。对于任意正整-优快云博客

本文链接：https://blog.youkuaiyun.com/ETmanwenhan/article/details/46682717

本文介绍了iOS应用中启动动画图片的尺寸规范，并提供了横竖屏适配的代码实现方案，帮助开发者更好地进行iOS应用界面设计。

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启动动画的尺寸大小：

LaunchImage320x480.png

LaunchImage640x960.png

LaunchImage640x1136.png

[转载]ios 开发 icon图标设置

iPhone屏幕尺寸、分辨率及适配

一、ios横竖屏适配解决方案

#pragma mark - 竖屏设置
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    NSLog(@"%s",__FUNCTION__);
    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
        if (interfaceOrientation == UIInterfaceOrientationPortrait)
        {
            Landscape=NO;
            return (interfaceOrientation == UIInterfaceOrientationPortrait);
        } else if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft)
        {
            Landscape=YES;
            return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
        }else if (interfaceOrientation == UIInterfaceOrientationLandscapeRight)
        {
            Landscape=YES;
            return (interfaceOrientation == UIInterfaceOrientationLandscapeRight);
        }
     
        return NO;

    }else {
        return YES;
    }
}

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    if (toInterfaceOrientation == UIInterfaceOrientationPortrait)
    {
        Landscape=NO;
    } else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft)
    {
        Landscape=YES;
    }else if (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
    {
        Landscape=YES;
    }
    NSLog(@"%s Landscape:%@",__FUNCTION__,Landscape==YES?@"YES":@"NO");
    
}

//iOS 7 适配
- (NSUInteger)supportedInterfaceOrientations
{
    NSLog(@"%s",__FUNCTION__);
    return UIInterfaceOrientationMaskAll;
}

- (BOOL)shouldAutorotate
{
    NSLog(@"%s",__FUNCTION__);
    return YES;
}