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What is the maximum length of a Push Notification alert text?

... thing the documentation says is: In iOS 8 and later, the maximum size allowed for a notification payload is 2 kilobytes; Apple Push Notification Service refuses any notification that exceeds this limit. (Prior to iOS 8 and in OS X, the maximum payload size is 256 bytes.) This is what I could ...
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How to measure elapsed time in Python?

... If you just want to measure the elapsed wall-clock time between two points, you could use time.time(): import time start = time.time() print("hello") end = time.time() print(end - start) This gives the execution time in seconds. Another option since 3.3 might ...
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How to force garbage collection in Java?

... Your best option is to call System.gc() which simply is a hint to the garbage collector that you want it to do a collection. There is no way to force and immediate collection though as the garbage collector is non-deterministic. ...
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AES Encryption for an NSString on the iPhone

...o does seem to work pretty decently... aside from the extra comma in each call to CCCrypt() which caused compile errors. A later comment on that post includes this adapted code, which works for me, and seems a bit more straightforward. If you include their code for the NSData category, you can writ...
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How to get the unique ID of an object which overrides hashCode()?

... Uniqueness isn't guaranteed at all ... for a practical JVM implementation. Guaranteed uniqueness requires either no relocation / compaction by the GC, or a big and expensive data structure for managing the hashcode values of live objects. ...
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z-index not working with fixed positioning

... This question can be solved in a number of ways, but really, knowing the stacking rules allows you to find the best answer that works for you. Solutions The <html> element is your only stacking context, so just follow the stacking rules inside a stacking context and you w...
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How to add a downloaded .box file to Vagrant?

...hing in the Vagrantfile. I am just using the Vagrantfile that got automatically created upon vagrant init. When i cat Vagrantfile, I don't see anything called a password or pem or anything – Rakib Sep 15 '15 at 12:31 ...
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How do I get LaTeX to hyphenate a word that contains a dash?

...mmand a command that expands to multi-discipli\-nary (use Search + Replace All to replace existing words). share | improve this answer | follow | ...
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What is the difference between aggregation, composition and dependency? [duplicate]

...e exists composition between class and students." – TallPaul Oct 11 '10 at 3:21 19 ...
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Using DISTINCT and COUNT together in a MySQL Query

...ted the answer as it is close to become a great answer and it was syntactically incorrect. – Rahul Tripathi Sep 8 '14 at 10:20 ...