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How do I add a Fragment to an Activity with a programmatically created content view
...ework expects the fragment's constructor (with no parameters) to be public and visible. Moving the fragment into the Activity as an inner class, or creating a new java file for the fragment fixes that.
The second issue is that when you're adding a fragment this way, you must pass a reference to the...
How to do a less than or equal to filter in Django queryset?
...tom field in each users profile called profile. This field is called level and is an integer between 0-3.
1 Answer
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Does a C# app track how long its been running?
And if it does, is there an easy way to get the total time since it started?
3 Answers
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How can I count the number of matches for a regex?
...r Java 9+
long matches = matcher.results().count();
Solution for Java 8 and older
You'll have to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completely different.
Complete exampl...
Vim: Delete buffer without losing the split window
When a buffer gets deleted (the "bd[elete]" command), it not only deletes the buffer but also removes the split window that buffer was in.
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Reordering arrays
...s.
Note that it returns an array of the removed elements.
Something nice and generic would be:
Array.prototype.move = function (from, to) {
this.splice(to, 0, this.splice(from, 1)[0]);
};
Then just use:
var ar = [1,2,3,4,5];
ar.move(0,3);
alert(ar) // 2,3,4,1,5
Diagram:
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LINQ - Convert List to Dictionary with Value as List
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It sounds like you want to group the MyObject instances by KeyedProperty and put that grouping into a Dictionary<long,List<MyObject>>. If so then try the following
List<MyObject> list = ...;
var map = list
.GroupBy(x => x.KeyedProperty)
.ToDictionary(x => x.Key, x =&g...
Is there a way to rename an Xcode 4 scheme?
..., you'll have a window like this:
Select the scheme you want to change, and hit Return.
Now the scheme name will be editable, and you can change it to your hearts desire. Then hit Return again to save it.
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How to specify data attributes in razor, e.g., data-externalid=“23151” on @this.Html.CheckBoxFor(…)
...MyModel.MyBoolProperty" data-externalid="23521" class="myCheckBox" />
And that's true for all Html helpers taking a htmlAttributes anonymous object as argument, not only the CheckBoxFor helper.
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Assign multiple columns using := in data.table, by group
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Thanks for this answer and the examples. How should I modify the following line in order to get two columns for each objectName from the dim output, rather than one column with two rows? data.table(objectName=ls())[,c("rows","cols"):=dim(get(objec...