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Android Fragments. Retaining an AsyncTask during screen rotation or configuration change
...es you can take. Note that each fragment has a unique identifier returned by Fragment.getId(). You can also find out if a fragment is being torn down for a config change through Fragment.getActivity().isChangingConfigurations(). So, at the point where you would decide to stop your AsyncTask (in o...
Prevent users from submitting a form by hitting Enter
...is method is unideal because it prevents the user from submitting the form by pressing enter while focused on the submit button. The best solution would be that of BalusC below, where enter is interrupted only while still focused on the form inputs.
– Anson Kao
...
Installing PDO driver on MySQL Linux server
... okay, i looked up in my php.ini file and it looks like pdo in enabled by default, i still need to know if i can use both pdo and mysql_*handlers...
– Yuri Scarbaci
Nov 14 '12 at 8:18
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ROW_NUMBER() in MySQL
...num+1 AS row_number, t.id FROM (SELECT * FROM table1 WHERE col = 264 ORDER BY id) t, (SELECT @row_num:=0) var;
– jberryman
Apr 26 '17 at 16:33
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“You have mail” message in terminal, os X [closed]
...bash) was then notifying me that "You have mail".
You can access the mail by simply using the command
mail
This launches you into Mail, and it will right away show you a list of messages that are stored there. If you want to see the content of the first message, use
t
This will show you the ...
How can I make an “are you sure” prompt in a Windows batchfile?
...ndows NT versions with enabled command extensions and
choice.exe available by default on Windows Vista and later Windows versions for PC users and on Windows Server 2003 and later server versions of Windows.
set is an internal command of Windows command processor cmd.exe. The option /P to prompt a...
Smart pointers: who owns the object? [closed]
...ion for these, but they are also available in Boost.
I still pass objects by reference (const whenever possible), in this case the called method must assume the object is alive only during the time of call.
There's another kind of pointer that I use that I call hub_ptr. It's when you have an objec...
Disable Automatic Reference Counting for Some Files
...here, because some frameworks, such as JSONKit, cannot be converted to ARC by using the converter.
4 Answers
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How to grep Git commit diffs or contents for a certain word?
...added or removed line matches "word" (also commit contents).
Note that -G by default accepts a regex, while -S accepts a string, but can be modified to accept regexes using the --pickaxe-regex.
To illustrate the difference between -S<regex> --pickaxe-regex and -G<regex>, consider a ...
Moving decimal places over in a double
...mal.
The problem you have is that 0.1 is not an exact representation, and by performing the calculation twice, you are compounding that error.
However, 100 can be represented accurately, so try:
double x = 1234;
x /= 100;
System.out.println(x);
which prints:
12.34
This works because Double.t...