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Why do most fields (class members) in Android tutorial start with `m`?
... letters of variables as indication of type, like 'b' for boolean, 'i' for integer and so on.
14 Answers
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What is the Swift equivalent of -[NSObject description]?
...ring {
return "<\(type(of: self)): foo = \(foo)>"
}
}
print(MyClass()) // prints: <MyClass: foo = 42>
Note: type(of: self) gets the type of the current instances instead of explicitly writing ‘MyClass’.
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Clear Application's Data Programmatically
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There's a new API introduced in API 19 (KitKat):
ActivityManager.clearApplicationUserData().
I highly recommend using it in new applications:
import android.os.Build.*;
if (VERSION_CODES.KITKAT <= VERSION.SDK_INT) {
((ActivityManager)...
Android Preferences: How to load the default values when the user hasn't used the preferences-screen
...rriding the user's settings each time your Activity is created
Take a look into PreferenceManager.setDefaultValues in Android API for further investigation.
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What's the difference between a file descriptor and file pointer?
I want to know the difference between a file descriptor and file pointer.
9 Answers
9
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How do I count unique values inside a list
...s are thrown away, and list.count() is O(n) anyway. You don't even need to convert aa to list at all. See Vidul's answer instead.
– wjandrea
Sep 23 at 15:38
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When do I use fabs and when is it sufficient to use std::abs?
...bs; it's overloaded for all the numerical types.
In C, abs only works on integers, and you need fabs for floating point values. These are available in C++ (along with all of the C library), but there's no need to use them.
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How to check if UILabel is truncated?
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Ah, thanks for pointing that out, I've corrected the sample code.
– progrmr
Jun 23 '10 at 3:53
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Unable to find valid certification path to requested target - error even after cert imported
...ed with ssl:
record enable per-record tracing
handshake print each handshake message
keygen print key generation data
session print session activity
defaultctx print default SSL initialization
sslctx print SSLContext tracing
sessioncache print ...
Why do I have to access template base class members through the this pointer?
... compiler must compile the template as soon as it sees it (to some kind of internal parse tree representation), and defer compiling the instantiation until later.
The checks that are performed on the template itself, rather than on particular instantiations of it, require that the compiler be able ...