KVC之快速字典转模型

来源：互联网发布：淘宝店铺全球购编辑：程序博客网时间：2024/06/09 20:05

有好东西就要分享，有有意思的玩意儿就要死命用

在MVC模式里面经常用到Model，而字典转模型也是常用的一个设计思路，笔者之前傻傻的，拿到一个字典，然后就像这样：

    self.name = creditCardDict[@"name"];    self.image = creditCardDict[@"image"];    self.applicants = creditCardDict[@"applicants"];    self.abstract = creditCardDict[@"abstract"];    self.feature = creditCardDict[@"feature"];    self.annualFee = creditCardDict[@"annualFee"];    self.currency = creditCardDict[@"currency"];    self.medium = creditCardDict[@"medium"];    self.interestHoliday = creditCardDict[@"interestHoliday"];    self.interestPerDay = creditCardDict[@"interestPerDay"];    self.proportionOfOverduePayment = creditCardDict[@"proportionOfOverduePayment"];    self.procedureRateOfCash = creditCardDict[@"procedureRateOfCash"];    self.procedureRateOfExchangeForeignCurrency = creditCardDict[@"procedureRateOfExchangeForeignCurrency"];    self.procedureFeeOfWithdrawOverflowPayment = creditCardDict[@"procedureFeeOfWithdrawOverflowPayment"];    self.proportionOfExcessCharge = creditCardDict[@"proportionOfExcessCharge"];    self.rateOfInstallment = creditCardDict[@"rateOfInstallment"];

是不是感觉很傻，机械性的工作就是那么让你欲哭无泪

不过好在就近发现一个好东西，那就是KVO，KVO想必学习iOS开发的都会懂的，神奇的是KVO有个很好玩的方法，可以让上面的千言万语用一句话代替：

[self setValuesForKeysWithDictionary:creditCardDict];

你看，就是那么简单。

不过使用这个方法需要注意的是，字典的key要与模型的成员属性名一致

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