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How to show a dialog to confirm that the user wishes to exit an Android Activity?
I've been trying to show a "Do you want to exit?" type of dialog when the user attempts to exit an Activity.
11 Answers
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Random alpha-numeric string in JavaScript? [duplicate]
What's the shortest way (within reason) to generate a random alpha-numeric (uppercase, lowercase, and numbers) string in JavaScript to use as a probably-unique identifier?
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Excel Date to String conversion
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edited Jul 1 '14 at 17:29
JohnB
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How do you crash a JVM?
...interviewee, "How do you crash a JVM?" I thought that you could do so by writing an infinite for-loop that would eventually use up all the memory.
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Get the subdomain from a URL
...is the TLD.
So the question remains more complex than at first blush, and it depends on how each TLD is managed. You'll need a database of all the TLDs that include their particular partitioning, and what counts as a second level domain and a subdomain. There aren't too many TLDs, though, so the ...
What are App Domains in Facebook Apps?
I want to add the ability to 'login with Facebook' to my site. But I am confused when I register my site in Facebook Apps. What should I input into App Domains ?
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Array versus linked-list
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It's easier to store data of different sizes in a linked list. An array assumes every element is exactly the same size.
As you mentioned, it's easier for a linked list to grow organically. An array's size needs to be known a...
Is there an IDictionary implementation that, on missing key, returns the default value instead of th
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Indeed, that won't be efficient at all.
You could always write an extension method:
public static TValue GetValueOrDefault<TKey,TValue>
(this IDictionary<TKey, TValue> dictionary, TKey key)
{
TValue ret;
// Ignore return value
dictionary.TryGetValue(key, ...
Save ArrayList to SharedPreferences
I have an ArrayList with custom objects. Each custom object contains a variety of strings and numbers. I need the array to stick around even if the user leaves the activity and then wants to come back at a later time, however I don't need the array available after the application has been closed c...
Does MySQL index foreign key columns automatically?
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edited Feb 13 '19 at 7:26
Nae
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