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Android: How to stretch an image to the screen width while maintaining aspect ratio?
...it so that it fills the screen horizontally, and stretches vertically to maintain the aspect ratio of the image, on any screen size. Here is my (non-working) code. It stretches the image horizontally, but not vertically, so it is squashed...
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Can I have onScrollListener for a ScrollView?
... a layout and I need to identify the user have reached the start and end point of the scroll.
7 Answers
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Why is “int i = 2147483647 + 1;” OK, but “byte b = 127 + 1;” is not compilable?
Why is int i = 2147483647 + 1; OK, but byte b = 127 + 1; is not compilable?
4 Answers
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The static keyword and its various uses in C++
...n it can't be accessed from any other translation unit. This is known as "internal linkage" or "static storage duration". (Don't do this in headers except for constexpr. Anything else, and you end up with a separate variable in each translation unit, which is crazy confusing)
If it's a variable in ...
Long vs Integer, long vs int, what to use and when?
Sometimes I see API's using long or Long or int or Integer , and I can't figure how the decision is made for that?
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How do I detect unsigned integer multiply overflow?
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I see you're using unsigned integers. By definition, in C (I don't know about C++), unsigned arithmetic does not overflow ... so, at least for C, your point is moot :)
With signed integers, once there has been overflow, undefined behaviour (UB) has occ...
method overloading vs optional parameter in C# 4.0 [duplicate]
...ld implement the solution like this,
///Base foo method
public void DoFoo(int a, long b, string c)
{
//Do something
}
/// Foo with 2 params only
public void DoFoo(int a, long b)
{
/// ....
DoFoo(a, b, "Hello");
}
public void DoFoo(int a)
{
///....
DoFoo(a, 23, "Hello");
}
.....
How to get 30 days prior to current date?
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As noted by @Neel, this method returns in Javascript Timestamp format. To convert it back to date object, you need to pass the above to a new Date object; new Date(priorDate).
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How to bind multiple values to a single WPF TextBlock?
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Use a ValueConverter
[ValueConversion(typeof(string), typeof(String))]
public class MyConverter: IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
return str...
Modulo operation with negative numbers
...Currently (well, GCC 5.2) the compiler seems to think that "%" returns an "int" in this case, rather than "unsigned" even when both operands are uint32_t or bigger.
– Frederick Nord
Sep 24 '16 at 14:56
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