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IOS开发代码分享之获取启动画面图片的string

2014-09-18 09:20 1146 查看

本代码支持 iPhone 6 以下. 支持 iPhone 及 iPad

+(NSString*)getLaunchImageName
{
     
    NSArray* images= @[@"LaunchImage.png", @"LaunchImage@2x.png",@"LaunchImage-700@2x.png",@"LaunchImage-568h@2x.png",@"LaunchImage-700-568h@2x.png",@"LaunchImage-700-Portrait@2x~ipad.png",@"LaunchImage-Portrait@2x~ipad.png",@"LaunchImage-700-Portrait~ipad.png",@"LaunchImage-Portrait~ipad.png",@"LaunchImage-Landscape@2x~ipad.png",@"LaunchImage-700-Landscape@2x~ipad.png",@"LaunchImage-Landscape~ipad.png",@"LaunchImage-700-Landscape~ipad.png"];
     
    UIImage *splashImage;
     
    if ([self isDeviceiPhone])
    {
        if ([self isDeviceiPhone4] && [self isDeviceRetina])
        {
            splashImage = [UIImage imageNamed:images[1]];
            if (splashImage.size.width!=0)
                return images[1];
            else
                return images[2];
        }
        else if ([self isDeviceiPhone5])
        {
            splashImage = [UIImage imageNamed:images[1]];
            if (splashImage.size.width!=0)
                return images[3];
            else
                return images[4];
        }
        else
            return images[0]; //Non-retina iPhone
    }
    else if ([[UIDevice currentDevice] orientation]==UIDeviceOrientationPortrait || [[UIDevice currentDevice] orientation] == UIDeviceOrientationPortraitUpsideDown)//iPad Portrait
    {
        if ([self isDeviceRetina])
        {
            splashImage = [UIImage imageNamed:images[5]];
            if (splashImage.size.width!=0)
                return images[5];
            else
                return images[6];
        }
        else
        {
            splashImage = [UIImage imageNamed:images[7]];
            if (splashImage.size.width!=0)
                return images[7];
            else
                return images[8];
        }
         
    }
    else
    {
        if ([self isDeviceRetina])
        {
            splashImage = [UIImage imageNamed:images[9]];
            if (splashImage.size.width!=0)
                return images[9];
            else
                return images[10];
        }
        else
        {
            splashImage = [UIImage imageNamed:images[11]];
            if (splashImage.size.width!=0)
                return images[11];
            else
                return images[12];
        }
    }
}
 
+(BOOL)isDeviceiPhone
{
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
    {
        return TRUE;
    }
     
    return FALSE;
}
 
+(BOOL)isDeviceiPhone4
{
    if ([[UIScreen mainScreen] bounds].size.height==480)
        return TRUE;
     
    return FALSE;
}
 
 
+(BOOL)isDeviceRetina
{
    if ([[UIScreen mainScreen] respondsToSelector:@selector(displayLinkWithTarget:selector:)] &&
        ([UIScreen mainScreen].scale == 2.0))        // Retina display
    {
        return TRUE;
    }
    else                                          // non-Retina display
    {
        return FALSE;
    }
}
 
 
+(BOOL)isDeviceiPhone5
{
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone && [[UIScreen mainScreen] bounds].size.height>480)
    {
        return TRUE;
    }
    return FALSE;
}

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