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hey i'm new to iOS and having a hard time with RestKit
can anyone help me on how to do these two post requests
1)post a long value and map the response to
#interface CountResultVO : NSObject
{
long offercount;
long insertCount;
long favouriteOfferCount;
long favouriteInsertCount;
}
2)post the above object and map response to
#interface FooList : NSObject
{
NSArray * foo;
}
my main problem is posting payloads of primitive variables like int, long etc instead of mapped objects.
this may be useful to you: http://liebke.github.com/restkit-github-client-example/
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I put this function in a class and I don't understand this error.
My Code:
Can help me?
Thanks.
You're assigning the delegation of your XMLParser to your class which does not conform to the protocol.
Your class Login should implement the XMLParserDelegate protocol :
extension Login: XMLParserDelegate{
}
I suggest you to read this :
https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/Protocols.html#//apple_ref/doc/uid/TP40014097-CH25-ID276
And to google around "swift delegation", there are a lot of good example that explain this concept
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Using a singleton object in a block will create a strong reference cycle in the code ?
As I have more then 5 singleton object in application.
You have to use weak reference of singleton inside blocks.
YourSingleton *singletonInstance = ---- //get your singleton instance here
typeof(YourSingleton) __weak weakSingletonInstance = singletonInstance;
// your block
^
{
// Now use weakSingletonInstance inside the block.
}];
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I'm having trouble creating completion blocks. I found the solution here
. It works for me, but I don't quite understand this. Now I'm still confused and don't know how to write a block myself. Are there any batter ways to understand blocks? Also, when should I use it? Is there anything that can replace blocks?
Should I create it as a property? Method perimeter? Do they have difference in efficiency?
Thank you!
check out http://fuckingblocksyntax.com for syntax.
For personal choice I like to return value and error in the completion block (similar to iOS framework pattern)
As an example;
declaration
- (void)fetchStuff:(void (^)(id value,NSError *error))completion;
calling the function
// async fetch
[object fetchStuff:^(id value, NSError *error) {
// do stuff with value
}];
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Hai I am new to xcode My code is below,
-(void)XYZ:(NSString *)id1 {
int id2 = [id1 intValue];
NSLog(#"%d",id2);
}
I need to use the id2 value in another class like below,
-(NSArray *)Vehicles {
NSString *urlString=[NSString stringWithFormat:#"http://www.xxxxxx.com/xxx_webservice/vehiclelist.php?uid=%d&format=json",id2];
}
Please guide me to pass the value thanks in advance...
First, you should read some docs about objective-c and OOP.
What you are calling classes, are methods. And if you want to pass one variable to a method, you have to declare it in the method declaration:
-(NSArray *)Vehicles:(NSInteger) id2 {
NSString *urlString=[NSString stringWithFormat:#"http://www.tranzlogix.com/tranzlogix_webservice/vehiclelist.php?uid=%d&format=json",id2];
}
And you have to pass it when you call it, if you are calling the method from your class, a correct way will be: [self Vehicles:id2]
But i suggest you to read a lot before asking so basic questions.
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When I create a new file in Xcode I can specify a subclass of my new class. But when it is already created, how can I know which subclass has it?
Thanks.
You see that in the class definition / .h file, for example:
#interface BCFrequencyPlot : NSView
BCFrequencyPlot is a subclass of NSView.
During compilation, you can type:
po [self class]
It will show you class of self. You can check class for any object currently in scope.