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how to show progress bar(circle) in an activity having a listview before loading the listview with d
..." >
</ListView>
</LinearLayout>
And in your activity (Java)
I use an AsyncTask to fetch data for my lists. SO, in the AsyncTask's onPreExecute() I use something like this:
// CAST THE LINEARLAYOUT HOLDING THE MAIN PROGRESS (SPINNER)
LinearLayout linlaHeaderProgress = (LinearLay...
Package objects
...ed to emulate a package wide import
// especially useful when wrapping a Java API
type DateTime = org.joda.time.DateTime
type JList[T] = java.util.List[T]
// Define implicits needed to effectively use your API:
implicit def a2b(a: A): B = // ...
}
Now the definitions inside that packa...
Good tutorials on XMPP? [closed]
...rtet on XMPP Development:
A good book: XMPP The Definivie Guide
A mature Java API. I've chosen the Smack Library from Ignite Realtime and used the groovy language with a buch of small scripts to learn the basics.
Later i developed a plugin for the OpenFire XMPP Server. There are some tutorials ...
Using comparison operators in Scala's pattern matching system
...s only that the non-equal outcomes will be greater than or less than zero. Java's Comparable#compareTo(T) is specified similarly to Scala's. It happens to be conventional to use 1 and -1 for the positive and negative values, respectively, as Scala's current implementation does, but one can't make su...
What is Dependency Injection and Inversion of Control in Spring Framework?
...l(IoC) Container:
This is common characteristic of frameworks, IoC manages java objects - from instantiation to destruction through its BeanFactory. - Java components that are instantiated by the IoC container are called beans, and the IoC container manages a bean's scope, lifecycle events, ...
How to define custom exception class in Java, the easiest way?
...e the new class dialog in Eclipse you can just set the Superclass field to java.lang.Exception and check "Constructors from superclass" and it will generate the following:
package com.example.exception;
public class MyException extends Exception {
public MyException() {
// TODO Auto-g...
What does the “static” modifier after “import” mean?
...ourself from some typing.
I will elaborate my point with example.
import java.lang.Math;
class WithoutStaticImports {
public static void main(String [] args) {
System.out.println("round " + Math.round(1032.897));
System.out.println("min " + Math.min(60,102));
}
}
Same code, with static i...
Daylight saving time and time zone best practices [closed]
...le, Indian Standard Time is UTC+05:30, and Nepal uses UTC+05:45).
If using Java, use java.time for Java 8 and later.
Much of that java.time functionality is back-ported to Java 6 & 7 in the ThreeTen-Backport library.
Further adapted for early Android (< 26) in the ThreeTenABP library.
Th...
Why do I want to avoid non-default constructors in fragments?
...
Bundles can carry serialized Java objects as well as Parcelable objects. Also, you should not pass a Context, because that information can be accessed via the fragment's getActivity() method.
– krakatoa
Feb 15 '13 a...
What do I return if the return type of a method is Void? (Not void!)
Due to the use of Generics in Java I ended up in having to implement a function having Void as return type:
6 Answers
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