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首次打开app时，提示打开蓝牙权限，打开后点击开始搜索，设备列表没有显示...
...点击开始搜索，设备列表没有显示蓝牙设备，而且app卡住了点不动，后面需要先在手机系统设置先打开蓝牙，然后启动app才能搜索到设备，请问大家这个怎么解决，怎么才能启动app同时打开蓝牙权限并搜索到设备？
I just discovered why all ASP.Net websites are slow, and I am trying to work out what to do about it
...ry request in an ASP.Net web application gets a Session lock at the beginning of a request, and then releases it at the end of the request!
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How to perform Callbacks in Objective-C
...ct {
id delegate;
}
- (void)setDelegate:(id)delegate;
- (void)doSomething;
@end
@interface NSObject(MyDelegateMethods)
- (void)myClassWillDoSomething:(MyClass *)myClass;
- (void)myClassDidDoSomething:(MyClass *)myClass;
@end
Implementation (.m) File
@implementation MyClass
- (void)setDeleg...
How are 3D games so efficient? [closed]
There is something I have never understood. How can a great big PC game like GTA IV use 50% of my CPU and run at 60fps while a DX demo of a rotating Teapot @ 60fps uses a whopping 30% ?
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Detecting a mobile browser
I'm looking for a function which return boolean value if user has mobile browser or not.
36 Answers
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What is the ultimate postal code and zip regex?
I'm looking for the ultimate postal code and zip code regex. I'm looking for something that will cover most (hopefully all) of the world.
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clientsocket ext 连接、断开，再连接 卡住了? - 用户反馈 - 清泛IT社区，为创新赋能！
调查中。已修复，测试通过，使用最新版即可。
How do I pass a variable by reference?
... about whether parameters are passed by reference or value, and the following code produces the unchanged value 'Original'
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Install dependencies globally and locally using package.json
Using npm we can install the modules globally using -g option. How can we do this in the package.json file?
6 Answers
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