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How to restart Activity in Android
...h I do occasionally up-vote when my answer is outclassed (not saying that happened here, just that I do it).
– Michael Bray
Oct 3 '11 at 21:49
4
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Media Player called in state 0, error (-38,0)
I am currently trying to design a simple app that streams an internet radio station. I have the URL for the station and am setting up the Media Player like
...
How to check if APK is signed or “debug build”?
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There are different way to check if the application is build using debug or release certificate, but the following way seems best to me.
According to the info in Android documentation Signing Your Application, debug key contain following subject distinguished nam...
How to configure the web.config to allow requests of any length
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In my case ( Visual Studio 2012 / IIS Express / ASP.NET MVC 4 app / .Net Framework 4.5 ) what really worked after 30 minutes of trial and error was setting the maxQueryStringLength property in the <httpRuntime> tag:
<httpRuntime targetFramework="4.5" maxQueryStringLength="1024...
Define a lambda expression that raises an Exception
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There is more than one way to skin a Python:
y = lambda: (_ for _ in ()).throw(Exception('foobar'))
Lambdas accept statements. Since raise ex is a statement, you could write a general purpose raiser:
def raise_(ex):
raise ex
y = lambda: raise_(Exception('foobar'))
But if...
Use rvmrc or ruby-version file to set a project gemset with RVM?
...uby-version).
For example, if you have a simple .rvmrc:
rvm use 1.9.3@my-app
It can be transformed to .ruby-version:
1.9.3
And .ruby-gemset:
my-app
Be sure to remove the .rvmrc file as it takes precedence over any other project configuration files:
rm .rvmrc
...
How do I print out the contents of an object in Rails for easy debugging?
... in the View by using the debug' Helper ActionView::Helpers::DebugHelper
#app/view/controllers/post_controller.rb
def index
@posts = Post.all
end
#app/view/posts/index.html.erb
<%= debug(@posts) %>
#start your server
rails -s
results (in browser)
- !ruby/object:Post
raw_attributes:
...
Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
...For example:
require 'thread'
# Don't change this file!
# Configure your app in config/environment.rb and config/environments/*.rb
...
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__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
__attribute____attribute__instructionsGNU C的一大特色（却不被初学者所知）就是__attribute__机制。__attribute__可以设置函数属性（Function Attribute）、变量属性（Variabl GNU C的一大特色（却不被初学者所知）就是__attribute__机制。__attribute__可...
Python extending with - using super() Python 3 vs Python 2
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super() (without arguments) was introduced in Python 3 (along with __class__):
super() -> same as super(__class__, self)
so that would be the Python 2 equivalent for new-style classes:
super(CurrentClass, self)
for old-style classes you can always use:
class Classname(OldStyleParen...