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Static way to get 'Context' in Android?
... Context getAppContext() {
return MyApplication.context;
}
}
Now everywhere call MyApplication.getAppContext() to get your application context statically.
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Initial size for the ArrayList
... (int i = 0; i < 10; i++) {
arr.add(0);
}
Having done this, you can now modify elements at indices 0..9.
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How do I put two increment statements in a C++ 'for' loop?
... 5; ++i,++j)
do_something(i,j);
But is it really a comma operator?
Now having wrote that, a commenter suggested it was actually some special syntactic sugar in the for statement, and not a comma operator at all. I checked that in GCC as follows:
int i=0;
int a=5;
int x=0;
for(i; i<5; x=...
Count, size, length…too many choices in Ruby?
... advise using length (or its alias size) rather than count if you want to know how many elements there are altogether.
Regarding ActiveRecord, on the other hand, there are important differences. check out this post:
Counting ActiveRecord associations: count, size or length?
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Configuring diff tool with .gitconfig
...add the following lines to your ~/.gitconfig:
[diff]
tool = vimdiff
Now, you will be able to run "git difftool" and use your tool of choice.
Specifying your own difftool, on the other hand, takes a little bit more work, see How do I view 'git diff' output with my preferred diff tool/ viewer?...
Use a URL to link to a Google map with a marker on it
... this answer is outdated thanks to a new bug/feature in google maps, it now looks for the nearest address or something. to prevent this, prepend you coordinates with a "loc:". maps.google.com/maps?q=loc:36.26577,-92.54324
– peter
Apr 5 '14 at 22:15
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Determine if map contains a value for a key?
...ble to cut down a little bit of code, but consider the cost of doing that. Now you've introduced a new function that people familiar with C++ won't be able to recognize.
If you want to implement this anyway in spite of these warnings, then:
template <class Key, class Value, class Comparator, cl...
How to convert from System.Enum to base integer?
..., IComparable<T>, IEquatable<T>
{
return (T)(object)e;
}
Now you can call:
e.GetValue<int>(); //or
e.GetIntValue();
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Difference between android-support-v7-appcompat and android-support-v4
I wanted to know the difference between android-support-v4.jar
and android-support-v7-appcompat.jar . If I want to add appcompat Action Bar in my application do I need to add both android-support-v7-appcompat.jar and android-support-v4.jar or only android-support-v7-appcompat.jar .
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How to make completely transparent navigation bar in iOS 7
...r, the only code I could find makes it translucent but not transparent. I know this can be done in iOS 7 because it is used in the notes app. My question is, what is the code they used to do it?
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