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java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare();
I have an Android app running a thread. I want a Toast message to show with a message.
7 Answers
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Regex empty string or email
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This regex pattern will match an empty string:
^$
And this will match (crudely) an email or an empty string:
(^$|^.*@.*\..*$)
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ResourceDictionary in a separate assembly
...blies, but it's better if I compile these resources in one single assembly and have my applications reference it, right?
6...
How to create Windows EventLog source from command line?
...events.
Type eventcreate /? in CMD prompt
Microsoft TechNet: Windows Command-Line Reference: Eventcreate
SS64: Windows Command-Line Reference: Eventcreate
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How to Programmatically Add Views to Views
Let's say I have a LinearLayout , and I want to add a View to it, in my program from the Java code. What method is used for this? I'm not asking how it's done in XML, which I do know, but rather, how can I do something along the lines of this sample code?
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Java Reflection: How to get the name of a variable?
... class files. One compile-time optimization is to remove it, saving space (and providing some obsfuscation). However, when it is is present, each method has a local variable table attribute that lists the type and name of local variables, and the range of instructions where they are in scope.
Perha...
jQuery SVG, why can't I addClass?
...nstead of .removeClass("newclass")
$("#item").attr("class", "oldclass");
And if you don't want to depend on jQuery:
var element = document.getElementById("item");
// Instead of .addClass("newclass")
element.setAttribute("class", "oldclass newclass");
// Instead of .removeClass("newclass")
element...
list.clear() vs list = new ArrayList(); [duplicate]
Which one of the 2 options is better and faster to clear an ArrayList, and why?
8 Answers
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Cause of a process being a deadlock victim
...L database engine. At the same time we have another process doing updates and inserts into the same database and same tables. The first process has started, recently to end prematurely with a message
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How to say “should_receive” more times in RSpec
...swer below
for 2 times:
Project.should_receive(:find).twice.with(@project).and_return(@project)
for exactly n times:
Project.should_receive(:find).exactly(n).times.with(@project).and_return(@project)
for at least n times:
Project.should_receive(:msg).at_least(n).times.with(@project).and_return(@pr...