ios 根据不同的尺寸获取不同的LanuchImage

- (UIImage *)getLaunchImage

{

CGSize viewSize = [UIScreen mainScreen].bounds.size;

NSString *viewOrienation =  @"Portrait";

NSString *launchImage = nil;

NSArray *imagesDirt =[[NSBundle mainBundle].infoDictionary valueForKey:@"UILaunchImages"];

for (NSDictionary *dirt in imagesDirt) {

CGSize imageSize = CGSizeFromString(dirt[@"UILaunchImageSize"]);

if (CGSizeEqualToSize(imageSize, viewSize) && [viewOrienation isEqualToString:dirt[@"UILaunchImageOrientation"]]) {

launchImage = dirt[@"UILaunchImageName"];

}

}

return [UIImage imageNamed:launchImage];

}