Tutorial by Examples: n

audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); audioManager.requestAudioFocus(audioListener, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN); changedListener = new AudioManager.OnAudioFocusChangeListener() { @Override public void onAudioFocusChange(in...

If you've got multiple implementations of the same interface, Spring needs to know which one it should autowire into a class. I'm going to use a Validator pattern in this example.1 Foo Class: public class Foo { private String name; private String emailAddress; private String erro...

If you've got an interface with a generic type parameter, Spring can use that to only autowire implementations that implement a type parameter you specify. Interface: public interface GenericValidator<T> { public T validate(T object); } Foo Validator Class: @Component public class...

WPF apps targeting .NET Framework 4.6.2 and later With WPF apps targeting .NET Framework 4.6.2 (and later), the soft keyboard is automatically invoked and dismissed without any additional steps required. WPF apps targeting .NET Framework 4.6.1 and earlier WPF is not primarily touch enabled, whi...

This example shows how to use fast enumeration in order to traverse through an NSArray. With this way you can also track current object's index while traversing. Suppose you have an array, NSArray *weekDays = @[@"Monday", @"Tuesday", @"Wednesday", @"Thursday&quot...

Create engaging user interfaces for Windows Desktop Applications with Blend for Visual Studio, the premier professional design tool for XAML applications. Build beautiful transitions and visualizations using Blend’s full suite of vector drawing tools, powerful template editing features, real-time an...

WPF Inspector is a utility that attaches to a running WPF application to troubleshoot common problems with layouting, databinding or styling. WPF Inspector allows you to explore a live view of the logical- and visual tree, read and edit property values of elements, watch the data context, debug trig...

Snoop is an open source tool available which allows you to browse the visual tree of a running WPF application without the need for a debugger and change properties. Download WPF Snoop from GitHub

The Windows SDK includes a suite of performance profiling tools for Windows Presentation Foundation (WPF) applications called the WPF Performance Suite. The WPF Performance Suite enables you to analyze the run-time behavior of your WPF applications and determine performance optimizations that you ca...

Several Qt Objects and Containers use a concept calles implicit sharing, which can also be refered to as copy-on-write. Implicit sharing means that the classes who use this concept share the same data on initialization. One of these classes to use the concept is QString. QString s1("Hello Wo...

import numpy as np import cv2 #access a video from your disk #to use the GIF in this example, convert to avi! cap = cv2.VideoCapture('eg_videoRead.avi') #we are going to read 10 frames #we store the frames in a numpy structure #then we'll generate a minimum projection of those frame...

Define parameters private static IMongoClient _client; private static IMongoDatabase _database; private static IMongoCollection< -collection class name- > _collection; Assign values to parameters _client = new MongoClient("mongodb://localhost:27017"); _database = _client.GetD...

Its common for datatables to have a checkbox to select multiple rows. If the data is spread across multiple pages, it could be difficult for the user to view the records he selected. To enable the user view all the selected records in one go, we usually use a hyperlink that when clicked displays onl...

Below is an example for implementing a Search input box that helps users to search the occurances of a particular value across the datatable. In the below example, #report is the div id of the div that contains the search input box. This function is called as soon as the user enters a value in this...

To cycle the level of outline shown: Tab Cycle outline level for one heading Shift-Tab Cycle outline level for the whole document To cycle through TODO states: Shift-Right Arrow Shift-Left Arrow To increase or decrease hierarchical level for a heading Meta-Right Arrow Make lower le...

Showing Basic Example of the View Page in Yii2 For New Learners These are basic classes you must to add to create form using yii2 ActiveForm <?php Use yii\helpers\Html; Use yii\widgets\ActiveForm; The Below line will start the form tag for our form below showing example shows that how to...

Creating summation is quite easy in 3 steps On front panel, Add 2 numeric controls (number 1 and Number 2) and 1 numeric indicator (sum). Switch to block diagram(using CTRL+E) and connect Add block from numeric palette. Wire it to both numeric controls and sum indicator created in step 1. ...

CIM/WMI is most commonly used to query information or configuration on a device. Thof a class that represents a configuration, process, user etc. In PowerShell there are multiple ways to access these classes and instances, but the most common ways are by using the Get-CimInstance (CIM) or Get-WmiObj...

There are many classes available in CIM and WMI which are separated into multiple namespaces. The most common (and default) namespace in Windows is root/cimv2. To find the righ class, it can useful to list all or search. List available classes You can list all available classes in the default name...

From java tutorial The dictionary definition of polymorphism refers to a principle in biology in which an organism or species can have many different forms or stages. This principle can also be applied to object-oriented programming and languages like the Java language. Subclasses of a class can ...