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ble蓝牙怎么接收中文 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...//www.fun123.cn/reference/iot/bluetooth_codec.html
保证单片机侧和App侧一致的中文编码方式即可。盲猜BLE中应该是UTF8编码，单片机GB2312编码。
Is it possible to prevent an NSURLRequest from caching data or remove cached data following a reques
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I have the same problem in my app when I requested info from twitter. In my case I didn't need to preserve those credentials, so I simple erase them using the next code:
- (void) eraseCredentials{
NSURLCredentialStorage *credentialsStorage = [NSURLCreden...
Can I use a function for a default value in MySql?
...asily create a trigger to do this, such as:
CREATE TRIGGER before_insert_app_users
BEFORE INSERT ON app_users
FOR EACH ROW
SET new.api_key = uuid();
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MySQL “incorrect string value” error when save unicode string in Django
... answer needs way, way, way more upvotes. Thanks! The real problem is your application may run fine for years until someone tries to enter a 4byte character.
– Michael Bylstra
Apr 30 '14 at 3:44
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What's the right way to pass form element state to sibling/parent elements?
...a two way binding, you're telling the Root component that "hey, something happened down here, check out the values" or you're passing the state of some data in the child component up in order to update the state. You changed the state in C1, and you want C2 to be aware of it, so, by updating the sta...
Best way to create custom config options for my Rails app?
I need to create one config option for my Rails application. It can be the same for all environments. I found that if I set it in environment.rb , it's available in my views, which is exactly what I want...
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iPhone app in landscape mode, 2008 systems
...citing news! As discovered by Andrew below, this problem has been fixed by Apple in 4.0+.
It would appear it is NO longer necessary to force the size of the view on every view, and the specific serious problem of landscape "only working the first time" has been resolved.
As of April 2011, it is not ...
iOS / Android cross platform development [closed]
I've been playing around with developing Android apps in Java for a while and am starting to get a handle on it. However if I want to on start on an iOS version I need to code everything from scratch - which is, well, undesirable.
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How to flip UIImage horizontally?
... includes flipsForRightToLeftLayoutDirection, but it won't work for iOS 8+ apps yet.
– user246672
Jun 27 '16 at 23:40
3
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Screenshot Apps for iPhone simulator [closed]
I was wondering if there are any good recommendations on apps that takes screenshots of the iPhone simulator. I've tried apps like iPhone screenshot cropper but I'm looking for something that will allow me to make larger images. For example large enough to put on a poster. Any suggestions?
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