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Android Calling JavaScript functions in WebView
...ide an android webview . Pretty simple what the code tries to do below - from the android app, call a javascript function with a test message, which inturn calls a java function back in the android app that displays test message via toast.
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Trigger a button click with JavaScript on the Enter key in a text box
...are using asp.net you will have to return false at the end to stop asp.net from still intercepting the event.
– maxp
Jan 13 '12 at 10:49
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What is the difference between task and thread?
...fference between Thread and Task . I did some sample program(help taken from MSDN) for my own sake of learning with
8 ...
Python 2.7: Print to File
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If you want to use the print function in Python 2, you have to import from __future__:
from __future__ import print_function
But you can have the same effect without using the function, too:
print >>f1, 'This is a test'
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Why is using a wild card with a Java import statement bad?
... that I shouldn't have to use one), how will I know which package Foo came from? Sure, using an IDE, the IDE will tell me, but your entire argument is that I should be able to read the code without one. Doing explicit imports help document the code (great reason to avoid wildcards), and it's a lot m...
JavaScript: What are .extend and .prototype used for?
...nction that copies the prototype of a new subclass that you want to extend from the base class.
So you can do something like:
extend( Fighter, Human )
And the Fighter constructor/object will inherit the prototype of Human, so if you define methods such as live and die on Human then Fighter will ...
When to use LinkedList over ArrayList in Java?
.... Javadoc says "operations that index into the list will traverse the list from the beginning or the end, whichever is closer", so those methods are O(n) (n/4 steps) on average, though O(1) for index = 0.
ArrayList<E>, on the other hand, allow fast random read access, so you can grab any elem...
Unzipping files in Python
....html I unzip to the temporary directory and the move / organize the files from there.
– Dave Forgac
Jul 12 '17 at 17:28
10
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Android and setting alpha for (image) view alpha
...ew ImageView(this);
myImageView.setAlpha(xxx);
In pre-API 11:
range is from 0 to 255 (inclusive), 0 being transparent and 255 being opaque.
In API 11+:
range is from 0f to 1f (inclusive), 0f being transparent and 1f being opaque.
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Using python's eval() vs. ast.literal_eval()?
...ery powerful, but is also very dangerous if you accept strings to evaluate from untrusted input. Suppose the string being evaluated is "os.system('rm -rf /')" ? It will really start deleting all the files on your computer.
ast.literal_eval:
Safely evaluate an expression node or a string containing a...