我对一点混淆不清的称号感到担忧,但我要说,我有一个交错的班子。
@interface Class : NSObject {
NSArray *items;
}
@property (nonatomic, retain) NSArray *items;
@end
在缩略语中,我实际上希望使用<代码>NSMutableArray增加一些业务,然后使用该类别的人应当能够检索数据,作为<代码>。 NSArray。
我对一点混淆不清的称号感到担忧,但我要说,我有一个交错的班子。
@interface Class : NSObject {
NSArray *items;
}
@property (nonatomic, retain) NSArray *items;
@end
在缩略语中,我实际上希望使用<代码>NSMutableArray增加一些业务,然后使用该类别的人应当能够检索数据,作为<代码>。 NSArray。
申报表阵列作为例变数,宣布该财产为仅读的NSArray和超标者。
@interface SomeClass : NSObject {
NSMutableArray *mutableItems;
}
@property (nonatomic, readonly) NSArray *items;
@end
@implementation SomeClass
- (NSArray *)items {
return [NSArray arrayWithArray:mutableItems];
}
@end
没有理由不从宣布返回国家安全局的方法返回国家安全局。
如果你不希望用户改变你能够这样做的阵列:
@interface Class : NSObject
- (NSArray*) items;
@end
@implementation Class
{
NSMutableArray *items;
}
// Allocate items somewhere in your init method
- (NSArray*)items
{
return items;
}
@end
你们不能将财产定义为贵方的变数,而只能将变数定义为:
@interface Class : NSObject {
NSMutableArray *items;
}
并将其用作<条码>。 NSMutable Array:
- (id)init {
if ((self == [super init])) {
items = [[NSMutableArray alloc] init]; // Don t forget to release me!
}
}
但随后,在您的接口中,界定了一种回归<代码>的易碎方法。 NSArray:
- (NSArray *)items;
And implement it as such:
- (NSArray *)items {
return [NSArray arrayWithArray:items];
}
I ve got the problem when I tried to do asynchronous requests to server from background thread. I ve never got results of those requests. Simple example which shows the problem: @protocol ...
i have a void, like -(void) doSomething in a specific controller. i can call it in this controller via [self doSomething], but i don t know how to call this void from another .m file. I want to call ...
Is there any way to obfuscate Objective-C Code ? Thanks
Created a View based Project and added a contact to the AddressBook using ABAddressBookRef,ABRecordRef now i wanted to display the added contact ABPersonViewController is the method but how to use in ...
I m pretty new to the Objective-C world and I have a long history with .net/C# so naturally I m inclined to use my C# wits. Now here s the question: I feel really inclined to create some type of ...
I have a simple Core Data app which displays a list of entities in the main window. To create or add new entities, I use a second modal window with a separate managed object context so changes can be ...
I m trying to show a database information in a tableview and then the detailed information in a view my problem is as follow: I created a NSMutableArray: NSMutableArray *myArray = [[NSMutableArray ...
I am writing an iPhone application which requires the user to enter several values that may contain a decimal point (currency values, percentages etc.). The number of decimal places in the values ...