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Is a RelativeLayout more expensive than a LinearLayout?
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In a talk at Google I/O 2013 (Writing Custom Views for Android), Romain Guy clarified the misunderstanding that caused everyone to start using RelativeLayouts for everything. A RelativeLayout always has to do two measure passes. Overall it is negligible as long as your view hiera...
How to order results with findBy() in Doctrine
...multiple "order by", just add more elements in that second parameter array and define the field names 'ASC' or 'DESC'. IE: array('priority'=>'ASC','id'=>'ASC').
– Aaron Belchamber
Mar 25 '15 at 14:41
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Why does PostgreSQL perform sequential scan on indexed column?
...Also, a sequential scan can request several pages from the heap at a time, and ask the kernel to be fetching the next chunk while it works on the current one- an index scan fetches one page at once. (A bitmap scan does a compromise between the two, you usually see that appearing in a plan for querie...
List all commits (across all branches) for a given file
...or the gitk GUI. Can I mark both correct?
– Saurabh Nanda
Sep 20 '11 at 14:20
@Saurabh Nanda: Mark the one you think i...
Initializing a struct to 0
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The first is easiest(involves less typing), and it is guaranteed to work, all members will be set to 0[Ref 1].
The second is more readable.
The choice depends on user preference or the one which your coding standard mandates.
[Ref 1] Reference C99 Standard 6.7.8...
How to save a BufferedImage as a File
...atName is the String containing the informal name of the format (e.g. png) and output is the file object to be written to. An example usage of the method for PNG file format is shown below:
ImageIO.write(image, "png", file);
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String concatenation in MySQL
I am using MySQL and MySQL Workbench 5.2 CE. When I try to concatenate 2 columns, last_name and first_name , it doesn't work :
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Define preprocessor macro through CMake?
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For a long time, CMake had the add_definitions command for this purpose. However, recently the command has been superseded by a more fine grained approach (separate commands for compile definitions, include directories, and compiler options).
An example using the new add_com...
Can the C# interactive window interact with my code?
In Visual Studio 2015 or later, I can open the 'C# interactive window', and run code:
5 Answers
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How to generate Javadoc HTML files in Eclipse?
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Project > Generate Javadoc....
In the Javadoc command: field, browse to find javadoc.exe (usually at [path_to_jdk_directory]\bin\javadoc.exe).
Check the box next to the project/package/file for which you are creating the Javadoc.
In the Destination: field, browse to find the...