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- (id)readViewControllerFromStoryBoardWithIdentifier:(NSString *)identifier
{
return [[UIStoryboard storyboardWithName:@"ELVStoryBoard" bundle:nil] instantiateViewControllerWithIdentifier:identifier];
}
[backBtn setImageEdgeInsets:UIEdgeInsetsMake(0, 0, 0, 44)];
根据identifier从StoryBoard中获取对象,UIButton的图片文件位置
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原文地址:http://www.cnblogs.com/hanjian/p/4506501.html