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How to use android emulator for testing bluetooth application?
...un it When creating the virtual machine, you need to set the type of guest OS as Linux
instead of Other.
After creating the virtual machine set the network adapter to 'Bridged'. ·
Start the VM and select 'Live CD VESA' at boot.
Now you need to find out the IP of this VM. Go to terminal in VM (use...
When should we call System.exit in Java
...rly set up) take care of doing all necessary shutdown ceremonies such as closing files, releasing resources etc.
"This method never returns normally." means just that the method won't return; once a thread goes there, it won't come back.
Another, maybe more common, way to quit a program is to simp...
Why is Github asking for username/password when following the instructions on screen and pushing a n
...
For MacOS. Issue when you upgrade to lastest macos. stackoverflow.com/a/39616339/1445102
– 1Rhino
Dec 26 '16 at 4:31
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Zooming MKMapView to fit annotation pins?
...tudes, apply some simple arithmetic, and use MKCoordinateRegionMake.
For iOS 7 and above, use showAnnotations:animated:, from MKMapView.h:
// Position the map such that the provided array of annotations are all visible to the fullest extent possible.
- (void)showAnnotations:(NSArray *)annotations...
Check number of arguments passed to a Bash script
... expressions, using (( )) to some may still be better, but they are still possible in [[ ]] with its arithmetic operators like -eq, -ne, -lt, -le, -gt, or -ge by placing the expression as a single string argument:
A=1
[[ 'A + 1' -eq 2 ]] && echo true ## Prints true.
That should be helpful ...
Change R default library path using .libPaths in Rprofile.site fails to work
...user_name/userLibrary"
The .libPaths function is a bit different than most other nongraphics functions. It works via side-effect. The functions Sys.getenv and Sys.setenv that report and alter the R environment variables have been split apart but .libPaths can either report or alter its target.
...
Performance of Java matrix math libraries? [closed]
We are computing something whose runtime is bound by matrix operations. (Some details below if interested.) This experience prompted the following question:
...
Creating a left-arrow button (like UINavigationBar's “back” style) on a UIToolbar
...ows by googling either Unicode Triangles or Unicode Arrows. Starting with iOS6 Apple changed the character to be an emoji character with a border. To disable the border I add the 0xFE0E Unicode Variation Selector.
NSString *backArrowString = @"\U000025C0\U0000FE0E"; //BLACK LEFT-POINTING TRIANGLE ...
How to convert a selection to lowercase or uppercase in Sublime Text
...o Preferences --> Keybindings-User
If you have a blank file open and close with the square brackets:
[ { "keys": ["ctrl+k", "ctrl+t"], "command": "title_case" } ]
Otherwise if you already have stuff in there, just make sure if it comes after another command to prepend a comma "," and add:
{...
Why can't Python find shared objects that are in directories in sys.path?
...debugging a new library
or using a nonstandard library for
special purposes. The environment
variable LD_PRELOAD lists shared
libraries with functions that override
the standard set, just as
/etc/ld.so.preload does. These are
implemented by the loader
/lib/ld-linux.so. I should note ...