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How to use an existing database with an Android application [duplicate]
... DB_NAME will be ordersDB,
private static String DB_NAME ="ordersDB";
Keep the database in assets folder and then follow the below:
DataHelper class:
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
imp...
How to rollback a specific migration?
I have the following migration file db\migrate\20100905201547_create_blocks.rb
14 Answers
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What does mvn install in maven exactly do
...ol provided by Apache which does more than dependency management. We can make it as a peer of Ant and Makefile which downloads all of the dependencies required.
On a mvn install, it frames a dependency tree based on the project configuration pom.xml on all the sub projects under the super pom.xml (...
How to remove all line breaks from a string
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This is probably a FAQ. Anyhow, line breaks (better: newlines) can be one of Carriage Return (CR, \r, on older Macs), Line Feed (LF, \n, on Unices incl. Linux) or CR followed by LF (\r\n, on WinDOS). (Contrary to another answer, this has nothing to do with character...
Python: What OS am I running on?
What do I need to look at to see whether I'm on Windows or Unix, etc?
25 Answers
25
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Better way to cast object to int
This is probably trivial, but I can't think of a better way to do it. I have a COM object that returns a variant which becomes an object in C#. The only way I can get this into an int is
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When to use a “has_many :through” relation in Rails?
...f you wanted to have users belong to groups, then you could do something like this:
class Group < ActiveRecord::Base
has_many :users
end
class User < ActiveRecord::Base
belongs_to :group
end
What if you wanted to track additional metadata around the association? For example, when the ...
Why do we declare Loggers static final?
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private - so that no other class can hijack your logger
static - so there is only one logger instance per class, also avoiding attempts to serialize loggers
final - no need to change the logger over the lifetime of the class
Also, I prefer name log to be as simple ...
Draw multi-line text to Canvas
A hopefully quick question, but I can't seem to find any examples... I'd like to write multi-line text to a custom View via a Canvas , and in onDraw() I have:
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Resize UIImage by keeping Aspect ratio and width
I seen in many posts for resizing the image by keeping aspect ratio. These functions uses the fixed points(Width and Height) for RECT while resizing. But in my project, I need to resize the view based on the Width alone, Height should be taken automatically based on the aspect ratio.
anyone help me ...