大约有 44,000 项符合查询结果(耗时:0.0518秒) [XML]

https://stackoverflow.com/ques... 

Android splash screen image sizes to fit all devices

...ldpi ~ 120dpi) Medium Density (mdpi ~ 160dpi) High Density (hdpi ~ 240dpi) Extra-High Density (xhdpi ~ 320dpi) (These dpi values are approximations, since custom built devices will have varying dpi values) What you (if you're a designer) need to know from this is that Android basically chooses fro...
https://stackoverflow.com/ques... 

Which is more efficient: Multiple MySQL tables or one large table?

...ow on top of a legacy system. I had to expand the old database tables with extra columns. I decided to make new tables for the new data. Some new features come in handy for the legacy system and now I can easily integrate them without having to rewrite too much of the old queries ...
https://stackoverflow.com/ques... 

What makes a keychain item unique (in iOS)?

...ivate keys. That's a lot different to Apple's sample code that only stores string credentials (username/password). However, I have found out that when you set the kSecClass to kSecClassCertificate or kSecClassKey the Keychain checks also if the entry (the value) is already stored. This prevents from...
https://stackoverflow.com/ques... 

WatiN or Selenium? [closed]

... { IE _ie = null; object _lock = new object(); IE GetInstance(string UrlFragment) { lock (_lock) { if (_ie == null) { var instances = new IECollection(true); //Find all existing IE instances var match = instanc...
https://stackoverflow.com/ques... 

google oauth2 redirect_uri with several parameters

... state=THE_STATE_PARAMETERS So for your case,do this: /1. create a json string of your parameters -> { "a" : "b" , "c" : 1 } /2. do a base64UrlEncode , to make it URL safe -> stateString = base64UrlEncode('{ "a" : "b" , "c" : 1 }'); This is a PHP example of base64UrlEncoding & de...
https://stackoverflow.com/ques... 

Which one will execute faster, if (flag==0) or if (0==flag)?

... some user declaring them: typedef, enum, struct, class. For example, std::string is user defined, even though you certainly not defined it yourself :) – Matthieu M. Jan 7 '11 at 14:29 ...
https://stackoverflow.com/ques... 

Tab space instead of multiple non-breaking spaces (“nbsp”)?

... I used this in a case for Swing JTable headers with a String value and an HTML arrow-type character, where I needed this character as a separator. Works great! Thanks! – Blake Neal Mar 27 '17 at 19:47 ...
https://stackoverflow.com/ques... 

How do HashTables deal with collisions?

...ts/changes of HashMap objects in case of high collisions. The alternative String hash function added in Java 7 has been removed. Buckets containing a large number of colliding keys will store their entries in a balanced tree instead of a linked list after certain threshold is reached. Above chan...
https://stackoverflow.com/ques... 

What is the advantage of using Restangular over ngResource?

...in a PUT request for example, just in the url. Generally they don't expect extra data fields that can not be updated by PUT (like the id, or a slug which is generated by setting the title etc). I found this to be straightforward with Restangular while i haven't figured out how to do it with $resourc...
https://stackoverflow.com/ques... 

Best practices for in-app database migration for Sqlite

...use prepared statements sqlite3_exec([self database].sqliteHandle, [[NSString stringWithFormat:@"PRAGMA user_version = %d", DatabaseSchemaVersionLatest] UTF8String], NULL, NULL, NULL); } Here's [self database] method that lazily opens the database: - (FMDatabase *)database { if (!_databas...