Tutorial by Examples: nd

Writing and Reading from Characteristics

Once you are connected to a Gatt Server, you're going to be interacting with it by writing and reading from the server's characteristics. To do this, first you have to discover what services are available on this server and which characteristics are avaiable in each service: @Override public voi...

Android • Bluetooth Low Energy

Installation and Setup

The installation is quite simple as there are seperate installers for MacOS and Windows machines available here. Currently two versions are for download: one beta and one stable. Setup will start after you downloaded the program and you´ll need to login with your GitHub credentials. That is really ...

github • GitHub Desktop

Push and Pull (or: the Sync Button)

Pull (Sync) Like in the command line you need to pull the current state of the repository once in a while. In GitHub Desktop this process is called by the sync Button at the top right corner. Push When you made local changes and want to push them you make a commit by writing something into the su...

github • GitHub Desktop

Find Next Tag & Manage Keyboard

The text field calls different delegate methods (only if delegates are set)One of delegate method called by textfield is *- (BOOL)textFieldShouldReturn:(UITextField )textField This method is called whenever users taps the return button.By using this method, we can implement any custom behaviour. ...

iOS • UITextField Delegate

Jinja2 installation and setup

Install the dependencies: pip install jinja2 Install a framework: pip install flask Create the following structure ├── run.py └── templates Put a file template.html in the templates directory. The file can contain a jinja 2 variable named my_string. <!DOCTYPE html> <html lang=&qu...

jinja2 • Getting started with jinja2

Using JavaScript and Stylesheets in Sections

Each section can can contain JavaScript and Stylesheets, these two languages are used within liquid tags: {% javascript %}{% endjavascript %} & {% stylesheet %}{% endstylesheet %}. When placing code inside of these two tags, Shopify compiles each piece into shopify_compiled.js & shopify_com...

Shopify • Implementing Sections

UnityAndroidPlugin.cs

Create a new C# script in Unity and replace it's contents with the following using UnityEngine; using System.Collections; public static class UnityAndroidPlugin { }

unity3d • Android Plugins 101 - An Introduction

UnityAndroidNative.java

Create a new Java class in Android Studio and replace it's contents with the following package com.axs.unityandroidplugin; import android.util.Log; import android.widget.Toast; import android.app.ActivityManager; import android.content.Context; public class UnityAndroidNative { } ...

unity3d • Android Plugins 101 - An Introduction

UnityAndroidPluginGUI.cs

Create a new C# script in Unity and paste these contents using UnityEngine; using System.Collections; public class UnityAndroidPluginGUI : MonoBehaviour { void OnGUI () { } }

unity3d • Android Plugins 101 - An Introduction

Setting the Origin and Direction of the Raycaster

The raycaster has an origin, where its ray starts, and a direction, where the ray goes. The origin of the raycaster is at the raycaster entity’s position. We can change the origin of the raycaster by setting the position component of the raycaster entity (or parent entities of the raycaster entity)...

aframe • Raycasters (component)

Using terminator values to determine the end of va_list

With any variadic function, the function must know how to interpret the variable arguments list. The “traditional” approach (exemplified by printf) is to specify number of arguments up front. However, this is not always a good idea: /* First argument specifies the number of parameters; the remaind...

C Language • Variable arguments

limit, skip, sort and count the results of the find() method

Similar to aggregation methods also by the find() method you have the possibility to limit, skip, sort and count the results. Let say we have following collection: db.test.insertMany([ {name:"Any", age:"21", status:"busy"}, {name:"Tony", age:"...

MongoDB • Querying for Data ( Getting Started )

Implementing a Leak Canary in Android Application

In your build.gradle you need to add the below dependencies: debugCompile 'com.squareup.leakcanary:leakcanary-android:1.5.1' releaseCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5.1' testCompile 'com.squareup.leakcanary:leakcanary-android-no-op:1.5.1' In your Application class yo...

Android • Leakcanary

Actions when a user has started/ended interacting with a textfield

For Swift 3.1: In the first example one can see how you would intercept the user interacting with a textfield while writing. Similarly, there are methods in the UITextFieldDelegate that are called when a user has started and ended his interaction with a TextField. To be able to access these method...

iOS • UITextField Delegate

How to configure Jenkins to deploy code on Development or Production org ?

How we can use jenkins in our SalesForce product development. What are the tools plugins are available for Jenkins Integration How to solve CI configuration issue.....etc

Salesforce • SalesForce CI Integration

hikr app, just another android.view.View

Prerequisites you should have fuse installed (https://www.fusetools.com/downloads) you should have done the introduction tutorial in terminal: fuse install android in terminal: uno install Fuse.Views Step 1 git clone https://github.com/fusetools/hikr Step 2 : Add package reference to ...

Android • Adding a FuseView to an Android Project

Condition annotations

Except main @conditional annotation there are set of similar annotation to be used for different cases. Class conditions The @ConditionalOnClass and @ConditionalOnMissingClass annotations allows configuration to be included based on the presence or absence of specific classes. E.g. when OObjectDa...

spring • Conditional bean registration in Spring

Find the "likely" maintainers for the FTDI USB serial converter

First, determine the source file for this particular driver. Found it at drivers/usb/serial/ftdi_sio.c. ./scripts/get_maintainer.pl drivers/usb/serial/ftdi_sio.c And the results: Johan Hovold <[email protected]> (maintainer:USB SERIAL SUBSYSTEM) Greg Kroah-Hartman <gregkh@linuxfounda...

linux-kernel • How to find the right person for help.

Webpack and Jest

Jest is used by Facebook to test all JavaScript code including React applications. One of Jest's philosophies is to provide an integrated "zero-configuration" experience. We observed that when engineers are provided with ready-to-use tools, they end up writing more tests, which in turn res...

Web Component • Testing Web Components

Find matches in big data sets

In case of big data sets, the call of grepl("fox", test_sentences) does not perform well. Big data sets are e.g. crawled websites or million of Tweets, etc. The first acceleration is the usage of the perl = TRUE option. Even faster is the option fixed = TRUE. A complete example would be: ...

R Language • Pattern Matching and Replacement