如何获得UISwitch的价值? [英] How to get the value of a UISwitch?
本文介绍了如何获得UISwitch的价值?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我是一个新手的iOS程序员,我有一个问题。
I am a newbie iOS programmer and I have a problem.
我目前使用iOS Core Data,我的问题是,我想通过取一个 UISwitch
。
I currently work on iOS Core Data and my problem is that I want to insert data into a boolean attribute to a database by taking the value of a UISwitch
.
问题是,我不知道它是什么方法我必须调用(例如.text做同样的事情,但对于UITextField)。我做了一个小的谷歌搜索,但没有结果。这里是一些代码:
The problem is that i don't know what it the method i have to call (e.g .text does the same thing but for UITextField). I have done a small google search but no results. Here is some code:
[newContact setValue:howMany.text forKey:@"quantity"];
[newContact setValue:important.??? forKey:@"important"];
howmany是一个文本字段,重要的是一个UISwitch
howmany is a textfield, important is a UISwitch
推荐答案
保存
[newContact setObject:[NSNumber numberWithBool:important.on] forKey:@"important"];
检索
BOOL on = [[newContact objectForKey:@"important"] boolValue];
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