Cheat sheet: How to use Git

Either you are a proffessional coder, or you are newbie to programming, either you use Git every day long or you have recently explored it and now you’re finding it very helpful – definitly you have faced up with need to know some basic package of most often used Git commands.

WebView Interactions with JavaScript

WebView displays web pages. But we are interested not only in web-content demonstration we want to interact with this web-content. In this article we’ll try to explain some details of this process.

First of all if you want to download web pages from Internet, please do not forget about this permission in AndroidManifest file.

<uses-permission Android:name="Android.permission.INTERNET" />

There are several ways to set content for WebView:

WebView webView = (WebView) findViewById(R.id.WebView);
// Ex 1: set URL address:
webView.loadUrl("https://www.android.com/");
// Ex 2: set .html from a raw folder:
webView.loadUrl("file:///Android_res ...

Google Maps API for Android

Google Maps is a very famous and helpful service, which firmly entrenched in our lives. With the Google Maps Android API you can add maps based on Google Maps data to your application. The API automatically handles access to Google Maps servers, data downloading, map display, and response to map gestures. You can also use API calls to add markers, polygons, and overlays to a basic map, and to change the user's view of a particular map area.

In this article we’re going to show you how to work with Google Maps Android API.

1. Create project on ...

Storing Your Data Securely on NFC Tags from Android

Near Field Communication (NFC) is a set of short-range wireless technologies, typically requiring a distance of 4 cm or less to initiate a connection. NFC allows you to share small payloads of data between an NFC tag and an Android-powered device, or between two Android-powered devices.

Android-powered devices with NFC simultaneously support three main operation modes:

1. Reader / writer mode, allowing the NFC device to read and / or to write passive NFC tags and stickers.
2. P2P mode, allowing the NFC device to exchange data with other NFC peers; this operation mode is used by Android Beam.
3. Card emulation mode, allowing the ...

Additional means for data storage

Most modern browsers support cookies. For a long time cookies have been the only way to store data making it available after reloading a page. However, the means of storage on a client foresee hundreds of kilobytes and megabytes of data without sending it to the server for each HTTP-query as cookies usually do.   

However, cookies may be still used for session storage, for example.

localStorage is a built-in storage for pairs “name/meaning”. localStorage allows to save information between sessions without reading it by another sites because the access is restricted by a current domen.

General duration of action ...

Design Icons for iOS Apps with PaintCode

PaintCode is a shiny little but yet powerful graphical tool developed by PixelCut, which seeks to facilitate the creation of UI elements for iOS and Mac OS in a really fancy way. The application is available in Apple App Store with a trial version as well. It is a drawing app that by using vector graphics generates all UI elements as Objective-C code in real time. You draw the shape and it produces the code that can be copied and pasted into your application in your own drawing method to display it on the screen. Let's get it on ...

iOS UI that shines forever with UIAppearance and Core Graphic

Traditionally, developers build UI relying on resources included within the application package with a huge part of it as images, sprites, backgrounds and then by using built in API present the complex graphical interface on the screen. 

Since iOS 5 developers can finally change the tint and outlook most of elements without much trouble. The UIAppearance protocol was added to simplify custom styling of iOS application UI elements and the classes that support the UIAppearance protocol have access to an appearance selector. This selector returns the appearance proxy for the receiver. With this proxy you can call selectors like setTintColor ...