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Does every Core Data Relationship have to have an Inverse?
Let's say I have two Entity classes: SocialApp and SocialAppType
8 Answers
8
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Custom fonts and XML layouts (Android)
...is create a TypeFace cache with a HashMap. This brought memory usage in my app down from 120+ mb to 18mb. code.google.com/p/android/issues/detail?id=9904
– chedabob
Jan 24 '12 at 14:20
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Copy/duplicate database without using mysqldump
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I've cleaned-up this script by @jozjan and applied some of the comments regarding foreign and other keys to create this version on GIST gist.github.com/christopher-hopper/8431737
– Christopher
Jan 15 '14 at 7:08
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Android 4.2: back stack behaviour with nested fragments
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it doesn't appear to work when there are multiple levels of nested fragments
– splinter123
Nov 28 '14 at 17:40
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How do you save/store objects in SharedPreferences on Android?
...String(serializedObjectKey, serializedObject);
sharedPreferencesEditor.apply();
}
Retrieve Object from Preference:
public static <GenericClass> GenericClass getSavedObjectFromPreference(Context context, String preferenceFileName, String preferenceKey, Class<GenericClass> classType...
Why is a round-trip conversion via a string not safe for a double?
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void DoubleToNumber(double value, int precision, NUMBER* number)
{
WRAPPER_CONTRACT
_ASSERTE(number != NULL);
number->precision = precision;
if (((FPDOUBLE*)&value)->exp == 0x7FF) {
number->scale = (((FPDOUBLE*)&value)->mantLo || ((FPDOUBLE*)&value)...
SSH to Elastic Beanstalk instance
...22 | 192.168.1.1/32
Configure the environment of your Elastic Beanstalk Application
If you haven't made a key pair yet, make one by clicking Key Pairs below Security Group in the ec2 tab.
In the AWS console, open the Elastic Beanstalk tab.
Select the relevant region.
Select relevant Environment...
Calendar returns wrong month [duplicate]
...ant correct it just because it would be incompatible with milions of older apps.
– TomeeNS
Nov 29 '15 at 1:41
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Most efficient way to concatenate strings?
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The StringBuilder.Append() method is much better than using the + operator. But I've found that, when executing 1000 concatenations or less, String.Join() is even more efficient than StringBuilder.
StringBuilder sb = new StringBuilder();
sb....
Why is printing to stdout so slow? Can it be sped up?
...s, you have just discovered the importance of I/O buffering. :-)
The disk appears to be faster, because it is highly buffered: all Python's write() calls are returning before anything is actually written to physical disk. (The OS does this later, combining many thousands of individual writes into a...