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Is Ruby pass by reference or by value?
...has a reference to. (Even this isn't bulletproof, though — both of the standard cloning methods do a shallow copy, so the instance variables of the clone still point to the same objects that the originals did. If the objects referenced by the ivars mutate, that will still show up in the copy, sinc...
How to read XML using XPath in Java
...Then you call expr.evaluate() passing in the document defined in that code and the return type you are expecting, and cast the result to the object type of the result.
If you need help with a specific XPath expressions, you should probably ask it as separate questions (unless that was your question...
Scale Image to fill ImageView width and keep aspect ratio
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Without using any custom classes or libraries:
<ImageView
android:id="@id/img"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:scaleType="fitCenter" />
scaleType="fitCenter" (default when omitted)
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How to set timer in android?
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ok since this isn't cleared up yet there are 3 simple ways to handle this.
Below is an example showing all 3 and at the bottom is an example showing just the method I believe is preferable. Also remember to clean up your tasks in onPause, saving state if necessary.
import java.util.T...
How do I pass data between Activities in Android application?
... ok if i pass session id to signout acitivity on successful login and will it work on any activity page to signout or manually i will have to assign it value on each activity??? using above procedure??
– UMAR-MOBITSOLUTIONS
Jan 19 '10 at 6:57
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socket.io and session?
...at I am thinking about this.... why not just set the store for the cookies and the store for the socket to the same store?
– James
Feb 2 '13 at 19:59
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Center a DIV horizontally and vertically [duplicate]
Is there a way to CENTER A DIV vertically and horizontally but, and that is important, that the content will not be cut when the window is smaller than the content The div must have a background color and a width and hight.
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Run a single Maven plugin execution?
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As noted in How to execute maven plugin execution directly from command line?, this
functionality has been implemented as MNG-5768, and is available in Maven 3.3.1.
The change will:
extend direct plugin invocation syntax to allow optional @execution-id parameter, e.g., org.apache.maven.p...
Open-sided Android stroke?
Is it possible to create an Android shape object with stroke on only certain sides?
8 Answers
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Detect when browser receives file download
...lution uses JavaScript on the client.
The client algorithm:
Generate a random unique token.
Submit the download request, and include the token in a GET/POST field.
Show the "waiting" indicator.
Start a timer, and every second or so, look for a cookie named "fileDownloadToken" (or whatever you dec...