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error: request for member '..' in '..' which is of non-class type
I have a class with two constructors, one that takes no arguments and one that takes one argument.
9 Answers
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How to animate the change of image in an UIImageView?
...mingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
transition.type = kCATransitionFade;
[imageView.layer addAnimation:transition forKey:nil];
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What is Android keystore file, and what is it used for?
... I would provide is that a keystore file is to authenticate yourself to anyone who is asking. It isn't restricted to just signing .apk files, you can use it to store personal certificates, sign data to be transmitted and a whole variety of authentication.
In terms of what you do with it for Android...
Select data from date range between two dates
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As you can see, there are two ways to get things done:
enlist all acceptable options
exclude all wrong options
Obviously, second way is much more simple (only two cases against four).
Your SQL will look like:
SELECT * FROM Product_sales
WHERE NOT (From_date > @Ran...
Android Facebook integration with invalid key hash
In one of my apps I need to get data from Facebook... I am doing this:
25 Answers
25
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How do I add a library project to Android Studio?
...ce Android Studio 1.0 was released (and a lot of versions between v1.0 and one of the firsts from the time of my previous answer) some things has changed.
My description is focused on adding external library project by hand via Gradle files (for better understanding the process). If you want to add...
Is there any particular difference between intval and casting to int - `(int) X`?
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I did benchmarking on ideone - (int) typecast is faster x 2 ! (int):ideone.com/QggNGc , intval():ideone.com/6Y8mPN
– jave.web
Aug 12 '14 at 18:32
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Select first row in each GROUP BY group?
... If there are multiple purchases with equally the highest total for one customer, the 1st query returns an arbitrary winner (depending on implementations details; the id can change for every execution!). Typically (not always) you would want one row per customer, defined by additional criteri...
How to calculate an angle from three points? [closed]
...'re using a commercial operating system that makes it difficult to type exponents, I expect there would be keycaps applications you could buy, or maybe a browser plug-in you could install. Or you can websearch and copy and paste.)
– Michael Scheper
Mar 3 '15 at...
How do I add 1 day to an NSDate?
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Swift 5.0 :
var dayComponent = DateComponents()
dayComponent.day = 1 // For removing one day (yesterday): -1
let theCalendar = Calendar.current
let nextDate = theCalendar.date(byAdding: dayComponent, to: Date())
print("nextDate : \...