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Objective-C: Calling selectors with multiple arguments
... looks like it is part of the selector's signature).
If you call the function in this manner:
[self performSelector:@selector(myTest:) withObject:myString];
It will work.
But, as the other posters have suggested, you may want to rename the method:
- (void)myTestWithAString:(NSString*)aString;
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Finding out whether a string is numeric or not
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Here's one way that doesn't rely on the limited precision of attempting to parse the string as a number:
NSCharacterSet* notDigits = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
if ([newString rangeOfCharacterFromSet:notDigits].location == NSNotFound)
{
// newSt...
ViewDidAppear is not called when opening app from background
...How can I call when I open my app. Do I have to do anything from applicationDidBecomeActive ?
8 Answers
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allowDefinition='MachineToApplication' error when publishing from VS2010 (but only after a previous
I can run my Asp.Net MVC 2 application without an issue on my local computer. Just Run / Debug.
10 Answers
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Make Font Awesome icons in a circle?
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But this is not a solution. This only works if the i has content. Usually with FA you don't have content within the i-tag, but the icon is rendered by CSS later: <i class="fa fa-lock"></i> and this is what @Schneider actually asked for....
Python string class like StringBuilder in C#?
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There is no one-to-one correlation. For a really good article please see Efficient String Concatenation in Python:
Building long strings in the Python
progamming language can sometimes
result in very slow running code. In
this article I investig...
Get list of JSON objects with Spring RestTemplate
I have two questions:
11 Answers
11
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What's the meaning of exception code “EXC_I386_GPFLT”?
What's the meaning of exception code EXC_I386_GPFLT ?
12 Answers
12
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Long press gesture on UICollectionViewCell
...ing how to add a long press gesture recognizer to a (subclass of) UICollectionView. I read in the documentation that it is added by default, but I can't figure out how.
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AutoLayout with hidden UIViews?
...ide UIViews , most often UILabels , depending on business logic. My question is, what is the best way using AutoLayout to respond to hidden views as if their frame was 0x0. Here is an example of a dynamic list of 1-3 features.
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