//自动获取系统的启动页

-(UIImage *)getLuanchImage{

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

NSString *viewOrientation = @"Portrait";

NSString *launchImage = nil;

UIImage *imageLuanch;

NSDictionary *imagesDic = [[[NSBundle mainBundle] infoDictionary] valueForKey:@"UILaunchImages"];

for (NSDictionary *dict in imagesDic) {

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

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

launchImage = dict[@"UILaunchImageName"];

}

}

return [UIImage imageNamed:launchImage];

}

//

imageViewBottom.contentMode = UIViewContentModeBottom;