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Programmatically update widget from activity/service/receiver
...s possible, but I can't figure out a way to trigger an update of my widget from the main activity. Isn't there some general intent I can broadcast?
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The necessity of hiding the salt for a hash
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The answer here is to ask yourself what you're really trying to protect from? If someone has access to your database, then they have access to the encrypted salts, and they probably have access to your code as well. With all that could they decrypt the encrypted salts? If so then the encryptio...
Get root view from current activity
...et the root view with View.getRootView() . I am also able to get the view from a button's onClick event where the argument is a View . But how can I get the view in an activity ?
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What is the difference between the 'COPY' and 'ADD' commands in a Dockerfile?
...identity, gzip, bzip2 or xz) then it is unpacked as a directory. Resources from remote URLs are not decompressed.
Note that the Best practices for writing Dockerfiles suggests using COPY where the magic of ADD is not required. Otherwise, you (since you had to look up this answer) are likely to ge...
Deleting folders in python recursively
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The default behavior of os.walk() is to walk from root to leaf. Set topdown=False in os.walk() to walk from leaf to root.
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nodejs get file name from absolute path?
If there any API could retrieve file name from an absolute file path?
7 Answers
7
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Switch statement: must default be the last case?
... of the example. The code isn't made up by this poster, but taken straight from the C standard, as an illustration of how weird switch statements are, and how bad practice will lead to bugs. If you had bothered to read the text below the code, you'd realize as much.
– Lundin
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How to get parameters from a URL string?
...sed using $_GET array. So,
echo $_GET['email'];
will extract the emails from urls.
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Nested or Inner Class in PHP
...lared private and B can access
them. In addition, B itself can be hidden from the outside world.
Nested classes can lead to more readable and maintainable code.
A nested class usually relates to it's parent class and together form a "package"
In PHP
You can have similar behavior in PHP ...
Call a python function from jinja2
... syntax as if I were calling a macro. jinja2 seems intent on preventing me from making a function call, and insists I repeat myself by copying the function into a template as a macro.
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