instance-variables

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Iphone - Assigning properties and instance variables

Well, i am still confused about objective c properties and instance variables. I create a LocationManager-object in my viewDidLoad. On the one hand the LocationMan is just an instance variable on the[详细]

2023-03-10 03:32 分类：问答
iOS Objective-C accessing ivars from different classes

What is the preferred method of accessing ivars from different classes? Application Delegate Class Say I want to access the root controller (@synthesized as rootController) from the Application Dele[详细]

2023-03-09 04:43 分类：问答
Setting delegate to nil in dealloc

In Objective-C, I understand that if an object sets itself as the delegate of another object, it should set that object\'s delegate to nil in its dealloc to avoid getting sent messages after it\'s gon[详细]

2023-03-08 08:17 分类：问答
Objective-c modern runtime using both properties and ivars in interface block

I\'ve seen code examples (from the book Beginning iPhone 4 Development) where they both declare ivars inside the interface block and then declare properties for the same. Like this:[详细]

2023-03-08 06:00 分类：问答
Helper method does not update a Controllers instance variable

I define an instance_variable in my Pages Controller and initialize it with some string. I include that instance_variable in a page.[详细]

2023-03-08 05:28 分类：问答
Get~Set value from different ViewControllers XCode

I have a two ViewControllers Level4ViewContr开发者_StackOverflow社区oller Level5ViewController In Level4ViewController I have a NSNumber *averagePred; I would like to get and set the value of aver[详细]

2023-03-07 17:25 分类：问答
share data between controller actions in ruby on rails

I\'m currently developing an application that needs to parse some (a big file of) csv data. I have to perform several steps to manipulate and map the data to ActiveRecord objects. This has to be done[详细]

2023-03-07 07:06 分类：问答
conflict with instance variables and local variables in partials

In one view I use render :partial => \"form_linktype_#{@linkjob.link_type}\", :locals => {:linkjob =>@linkjob }[详细]

2023-03-06 21:13 分类：问答
Terminology: one-word Java term for instance variables?

I\'m looking for an alternativ OO/Java term of instance variables declared in a class (non-static), or more specifically in a Java class \"decorated\" with JPA annotations:[详细]

2023-03-03 16:56 分类：问答
What kind of Ruby variable do I want to use here?

I’m still learning Ruby, and I’m curious about whether it is appropriate to use a class variable, constant, or local variable in this scenario.[详细]

2023-03-02 13:30 分类：问答